[ { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/bacqt-a9668", "eprint_id": 116246, "eprint_status": "archive", "datestamp": "2023-08-20 07:14:10", "lastmod": "2023-10-23 15:20:41", "type": "book_section", "metadata_visibility": "show", "creators": { "items": [ { "id": "Earnshaw-Hannah-P", "name": { "family": "Earnshaw", "given": "Hannah P." }, "orcid": "0000-0001-5857-5622" }, { "id": "Madsen-Kristin-K", "name": { "family": "Madsen", "given": "Kristin K." }, "orcid": "0000-0003-1252-4891" }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Grefenstette-Brian-W", "name": { "family": "Grefenstette", "given": "Brian W." }, "orcid": "0000-0002-1984-2932" }, { "id": "Brightman-Murray", "name": { "family": "Brightman", "given": "Murray" }, "orcid": "0000-0002-8147-2602" }, { "id": "Zoglauer-Andreas", "name": { "family": "Zoglauer", "given": "Andreas" }, "orcid": "0000-0001-9067-3150" }, { "id": "Harrison-F-A", "name": { "family": "Harrison", "given": "Fiona" }, "orcid": "0000-0003-2992-8024" } ] }, "title": "Reconstruction of the NuSTAR PSF Using Single-laser Metrology", "ispublished": "unpub", "full_text_status": "restricted", "note": "\u00a9 2022 IEEE. \n\nThis work was supported under NASA Contract No. NNG08FD60C and made use of data from the NuSTAR mission, a project led by the California Institute of Technology, managed by the Jet Propulsion Laboratory, and funded by the National Aeronautics and Space Administration. We thank the NuSTAR Operations, Software, and Calibration teams for support with the execution and analysis of these observations. This research has made use of the NuSTAR Data Analysis Software (NuSTARDAS) jointly developed by the ASI Science Data Center (ASDC, Italy) and the California Institute of Technology.", "abstract": "This paper describes a method by which the metrology system of the Nuclear Spectroscopic Telescope Array (NuSTAR) X-ray space observatory, which uses two lasers to characterize the relative motion of the optics and focal plane benches, can be approximated if one laser fails. The optics and focal plane benches are separated by a ten-meter-long rigid mast that undergoes small amounts of thermal flexing depending on how the spacecraft is illuminated by the Sun. Compensation for this motion is required in order to produce an in-focus image. We analyze the trends of mast motion by observation parameters, using archival NuSTAR data between 2012 and 2021, in order to discover whether parameters such as the solar aspect angle (SAA) can be used to predict the mast motion in future observations. We find that, by using the SAA, observation date, and orbital phase, we can simulate the motion measured by one of the lasers by translating the track produced by the other laser and applying modifications to the mast aspect solution calculated during the NuSTAR data reduction pipeline. With this simulated mast solution, we are able to reconstruct a minimally distorted point spread function for all but two narrow ranges of SAA. We plan to implement the generation of simulated mast files alongside the usual NuSTAR data reduction pipeline for contingency purposes should a laser on the spacecraft fail in the future. This work also has implications for reducing the risk of implementing laser metrology systems on future missions that use deployable masts to achieve the long focal lengths required in high-energy astronomy.", "date": "2022-03-05", "date_type": "published", "publisher": "IEEE", "place_of_pub": "Piscataway, NJ", "pagerange": "1-8", "id_number": "CaltechAUTHORS:20220811-935515000", "isbn": "978-1-6654-3760-8", "book_title": "2022 IEEE Aerospace Conference (AERO)", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20220811-935515000", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA", "grant_number": "NNG08FD60C" }, { "agency": "NASA/JPL/Caltech" } ] }, "local_group": { "items": [ { "id": "Astronomy-Department" }, { "id": "Space-Radiation-Laboratory" }, { "id": "NuSTAR" } ] }, "doi": "10.1109/aero53065.2022.9843468", "resource_type": "book_section", "pub_year": "2022", "author_list": "Earnshaw, Hannah P.; Madsen, Kristin K.; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/cvzck-kq224", "eprint_id": 104266, "eprint_status": "archive", "datestamp": "2023-08-19 22:06:51", "lastmod": "2023-10-20 19:14:07", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Abdalla-H", "name": { "family": "Abdalla", "given": "H." } }, { "name": { "family": "Adam", "given": "R." } }, { "name": { "family": "Aharonian", "given": "F." } }, { "name": { "family": "Ait Benkhali", "given": "F." } }, { "name": { "family": "Ang\u00fcner", "given": "E. O." } }, { "name": { "family": "Arakawa", "given": "M." } }, { "name": { "family": "Arcaro", "given": "C." } }, { "name": { "family": "Armand", "given": "C." } }, { "name": { "family": "Ashkar", "given": "H." } }, { "name": { "family": "Backes", "given": "M." } }, { "name": { "family": "Barbosa Martins", "given": "V." } }, { "name": { "family": "Barnard", "given": "M." } }, { "name": { "family": "Becherini", "given": "Y." } }, { "name": { "family": "Berge", "given": "D." } }, { "name": { "family": "Bernl\u00f6hr", "given": "K." } }, { "name": { "family": "Blackwell", "given": "R." } }, { "name": { "family": "B\u00f6ttcher", "given": "M." } }, { "name": { "family": "Boisson", "given": "C." } }, { "name": { "family": "Bolmont", "given": "J." } }, { "name": { "family": "Bonnefoy", "given": "S." } }, { "name": { "family": "Bregeon", "given": "J." } }, { "name": { "family": "Breuhaus", "given": "M." } }, { "name": { "family": "Brun", "given": "F." } }, { "name": { "family": "Brun", "given": "P." } }, { "name": { "family": "Bryan", "given": "M." } }, { "name": { "family": "B\u00fcchele", "given": "M." } }, { "name": { "family": "Bulik", "given": "T." } }, { "name": { "family": "Bylund", "given": "T." } }, { "name": { "family": "Caroff", "given": "S." } }, { "name": { "family": "Carosi", "given": "A." } }, { "name": { "family": "Casanova", "given": "S." } }, { "name": { "family": "Cerruti", "given": "M." } }, { "name": { "family": "Chand", "given": "T." } }, { "name": { "family": "Chandra", "given": "S." } }, { "name": { "family": "Chen", "given": "A." } }, { "name": { "family": "Colafrancesco", "given": "S." } }, { "name": { "family": "Cury\u0142o", "given": "M." } }, { "name": { "family": "Davids", "given": "I. D." } }, { "name": { "family": "Deil", "given": "C." } }, { "name": { "family": "Devin", "given": "J." } }, { "name": { "family": "deWilt", "given": "P." } }, { "name": { "family": "Dirson", "given": "L." } }, { "name": { "family": "Djannati-Ata\u00ef", "given": "A." } }, { "name": { "family": "Dmytriiev", "given": "A." } }, { "name": { "family": "Donath", "given": "A." } }, { "name": { "family": "Doroshenko", "given": "V." } }, { "name": { "family": "Dyks", "given": "J." } }, { "name": { "family": "Egberts", "given": "K." } }, { "name": { "family": "Emery", "given": "G." } }, { "name": { "family": "Ernenwein", "given": "J.-P." } }, { "name": { "family": "Eschbach", "given": "S." } }, { "name": { "family": "Feijen", "given": "K." } }, { "name": { "family": "Fegan", "given": "S." } }, { "name": { "family": "Fiasson", "given": "A." } }, { "name": { "family": "Fontaine", "given": "G." } }, { "name": { "family": "Funk", "given": "S." } }, { "name": { "family": "F\u00fc\u00dfling", "given": "M." } }, { "name": { "family": "Gabici", "given": "S." } }, { "name": { "family": "Gallant", "given": "Y. 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A." } }, { "name": { "family": "Katarzy\u0144ski", "given": "K." } }, { "name": { "family": "Katsuragawa", "given": "M." } }, { "name": { "family": "Katz", "given": "U." } }, { "name": { "family": "Khangulyan", "given": "D." } }, { "name": { "family": "Kh\u00e9lifi", "given": "B." } }, { "name": { "family": "King", "given": "J." } }, { "name": { "family": "Klepser", "given": "S." } }, { "name": { "family": "Klu\u017aniak", "given": "W." } }, { "name": { "family": "Komin", "given": "Nu." } }, { "name": { "family": "Kosack", "given": "K." } }, { "name": { "family": "Kostunin", "given": "D." } }, { "name": { "family": "Kreter", "given": "M." } }, { "name": { "family": "Lamanna", "given": "G." } }, { "name": { "family": "Lemi\u00e8re", "given": "A." } }, { "name": { "family": "Lemoine-Goumard", "given": "M." } }, { "name": { "family": "Lenain", "given": "J.-P." } }, { "name": { "family": "Leser", "given": "E." } }, { "name": { "family": "Levy", "given": "C." } }, { "name": { "family": "Lohse", "given": "T." } }, { "name": { "family": "Lypova", "given": "I." } }, { "name": { "family": "Mackey", "given": "J." } }, { "name": { "family": "Majumdar", "given": "J." } }, { "name": { "family": "Malyshev", "given": "D." } }, { "name": { "family": "Marandon", "given": "V." } }, { "name": { "family": "Marcowith", "given": "A." } }, { "name": { "family": "Mares", "given": "A." } }, { "name": { "family": "Mariaud", "given": "C." } }, { "name": { "family": "Mart\u00ed-Devesa", "given": "G." } }, { "name": { "family": "Marx", "given": "R." } }, { "name": { "family": "Maurin", "given": "G." } }, { "name": { "family": "Meintjes", "given": "P. J." } }, { "name": { "family": "Mitchell", "given": "A. M. W." } }, { "name": { "family": "Moderski", "given": "R." } }, { "name": { "family": "Mohamed", "given": "M." } }, { "name": { "family": "Mohrmann", "given": "L." } }, { "name": { "family": "Moore", "given": "C." } }, { "name": { "family": "Moulin", "given": "E." } }, { "name": { "family": "Muller", "given": "J." } }, { "name": { "family": "Murach", "given": "T." } }, { "name": { "family": "Nakashima", "given": "S." } }, { "name": { "family": "de Naurois", "given": "M." } }, { "name": { "family": "Ndiyavala", "given": "H." } }, { "name": { "family": "Niederwanger", "given": "F." } }, { "name": { "family": "Niemiec", "given": "J." } }, { "name": { "family": "Oakes", "given": "L." } }, { "name": { "family": "O'Brien", "given": "P." } }, { "name": { "family": "Odaka", "given": "H." } }, { "name": { "family": "Ohm", "given": "S." } }, { "name": { "family": "de Ona Wilhelmi", "given": "E." } }, { "name": { "family": "Ostrowski", "given": "M." } }, { "name": { "family": "Oya", "given": "I." } }, { "name": { "family": "Panter", "given": "M." } }, { "name": { "family": "Parsons", "given": "R. D." } }, { "name": { "family": "Perennes", "given": "C." } }, { "name": { "family": "Petrucci", "given": "P.-O." } }, { "name": { "family": "Peyaud", "given": "B." } }, { "name": { "family": "Piel", "given": "Q." } }, { "name": { "family": "Pita", "given": "S." } }, { "name": { "family": "Poireau", "given": "V." } }, { "name": { "family": "Priyana Noel", "given": "A." } }, { "name": { "family": "Prokhorov", "given": "D. A." } }, { "name": { "family": "Prokoph", "given": "H." } }, { "name": { "family": "P\u00fchlhofer", "given": "G." } }, { "name": { "family": "Punch", "given": "M." } }, { "name": { "family": "Quirrenbach", "given": "A." } }, { "name": { "family": "Raab", "given": "S." } }, { "name": { "family": "Rauth", "given": "R." } }, { "name": { "family": "Reimer", "given": "A." } }, { "name": { "family": "Reimer", "given": "O." } }, { "name": { "family": "Remy", "given": "Q." } }, { "name": { "family": "Renaud", "given": "M." } }, { "name": { "family": "Rieger", "given": "F." } }, { "name": { "family": "Rinchiuso", "given": "L." } }, { "name": { "family": "Romoli", "given": "C." } }, { "name": { "family": "Rowell", "given": "G." } }, { "name": { "family": "Rudak", "given": "B." } }, { "name": { "family": "Ruiz-Velasco", "given": "E." } }, { "name": { "family": "Sahakian", "given": "V." } }, { "name": { "family": "Sailer", "given": "S." } }, { "name": { "family": "Saito", "given": "S." } }, { "name": { "family": "Sanchez", "given": "D. A." } }, { "name": { "family": "Santangelo", "given": "A." } }, { "name": { "family": "Sasaki", "given": "M." } }, { "name": { "family": "Schlickeiser", "given": "R." } }, { "name": { "family": "Sch\u00fcssler", "given": "F." } }, { "name": { "family": "Schulz", "given": "A." } }, { "name": { "family": "Schutte", "given": "H. M." } }, { "name": { "family": "Schwanke", "given": "U." } }, { "name": { "family": "Schwemmer", "given": "S." } }, { "name": { "family": "Seglar-Arroyo", "given": "M." } }, { "name": { "family": "Senniappan", "given": "M." } }, { "name": { "family": "Seyffert", "given": "A. S." } }, { "name": { "family": "Shafi", "given": "N." } }, { "name": { "family": "Shiningayamwe", "given": "K." } }, { "name": { "family": "Simoni", "given": "R." } }, { "name": { "family": "Sinha", "given": "A." } }, { "name": { "family": "Sol", "given": "H." } }, { "name": { "family": "Specovius", "given": "A." } }, { "name": { "family": "Spir-Jacob", "given": "M." } }, { "name": { "family": "Stawarz", "given": "\u0141." } }, { "name": { "family": "Steenkamp", "given": "R." } }, { "name": { "family": "Stegmann", "given": "C." } }, { "name": { "family": "Steppa", "given": "C." } }, { "name": { "family": "Takahashi", "given": "T." } }, { "name": { "family": "Tavernier", "given": "T." } }, { "name": { "family": "Taylor", "given": "A. M." } }, { "name": { "family": "Terrier", "given": "R." } }, { "name": { "family": "Tiziani", "given": "D." } }, { "name": { "family": "Tluczykont", "given": "M." } }, { "name": { "family": "Trichard", "given": "C." } }, { "name": { "family": "Tsirou", "given": "M." } }, { "name": { "family": "Tsuji", "given": "N." } }, { "name": { "family": "Tuffs", "given": "R." } }, { "name": { "family": "Uchiyama", "given": "Y." } }, { "name": { "family": "van der Walt", "given": "D. J." } }, { "name": { "family": "van Eldik", "given": "C." } }, { "name": { "family": "van Rensburg", "given": "C." } }, { "name": { "family": "van Soelen", "given": "B." } }, { "name": { "family": "Vasileiadis", "given": "G." } }, { "name": { "family": "Veh", "given": "J." } }, { "name": { "family": "Venter", "given": "C." } }, { "name": { "family": "Vincent", "given": "P." } }, { "name": { "family": "Vink", "given": "J." } }, { "name": { "family": "V\u00f6lk", "given": "H. J." } }, { "name": { "family": "Vuillaume", "given": "T." } }, { "name": { "family": "Wadiasingh", "given": "Z." } }, { "name": { "family": "Wagner", "given": "S. J." } }, { "name": { "family": "White", "given": "R." } }, { "name": { "family": "Wierzcholska", "given": "A." } }, { "name": { "family": "Yang", "given": "R." } }, { "name": { "family": "Yoneda", "given": "H." } }, { "name": { "family": "Zacharias", "given": "M." } }, { "name": { "family": "Zanin", "given": "R." } }, { "name": { "family": "Zdziarski", "given": "A. A." } }, { "name": { "family": "Zech", "given": "A." } }, { "name": { "family": "Zorn", "given": "J." } }, { "name": { "family": "\u017bywucka", "given": "N." } }, { "name": { "family": "Madejski", "given": "G. M." } }, { "name": { "family": "Nalewajko", "given": "K." } }, { "id": "Madsen-K-K", "name": { "family": "Madsen", "given": "K. K." }, "orcid": "0000-0003-1252-4891" }, { "name": { "family": "Chiang", "given": "J." } }, { "name": { "family": "Balokovi\u0107", "given": "M." } }, { "name": { "family": "Paneque", "given": "D." } }, { "name": { "family": "Furniss", "given": "A. K." } }, { "name": { "family": "Hayashida", "given": "M." } }, { "name": { "family": "Urry", "given": "C. M." } }, { "name": { "family": "Ajello", "given": "M." } }, { "id": "Harrison-F-A", "name": { "family": "Harrison", "given": "F. A." }, "orcid": "0000-0003-2992-8024" }, { "name": { "family": "Giebels", "given": "B." } }, { "id": "Stern-D", "name": { "family": "Stern", "given": "D." }, "orcid": "0000-0003-2686-9241" }, { "id": "Forster-K", "name": { "family": "Forster", "given": "K." }, "orcid": "0000-0001-5800-5531" }, { "name": { "family": "Giommi", "given": "P." } }, { "name": { "family": "Perri", "given": "M." } }, { "name": { "family": "Puccetti", "given": "S." } }, { "name": { "family": "Zoglauer", "given": "A." } }, { "name": { "family": "Tagliaferri", "given": "G." } } ] }, "title": "Simultaneous observations of the blazar PKS 2155\u2212304 from ultra-violet to TeV energies", "ispublished": "pub", "full_text_status": "public", "keywords": "BL Lacertae objects: individual: PKS 2155-304 \u2013 astroparticle physics", "note": "\u00a9 2020 H. Abdalla et al. Open Access article, published by EDP Sciences, under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. \n\nReceived 11 October 2019; Accepted 12 December 2019; Published online 07 July 2020. \n\nThe support of the Namibian authorities and of the University of Namibia in facilitating the construction and operation of H.E.S.S. is gratefully acknowledged, as is the support by the German Ministry for Education and Research (BMBF), the Max Planck Society, the German Research Foundation (DFG), the Helmholtz Association, the Alexander von Humboldt Foundation, the French Ministry of Higher Education, Research and Innovation, the Centre National de la Recherche Scientifique (CNRS/IN2P3 and CNRS/INSU), the Commissariat \u00e0 l'\u00e9nergie atomique et aux \u00e9nergies alternatives (CEA), the U.K. Science and Technology Facilities Council (STFC), the Knut and Alice Wallenberg Foundation, the National Science Centre, Poland grant no. 2016/22/M/ST9/00382, the South African Department of Science and Technology and National Research Foundation, the University of Namibia, the National Commission on Research, Science & Technology of Namibia (NCRST), the Austrian Federal Ministry of Education, Science and Research and the Austrian Science Fund (FWF), the Australian Research Council (ARC), the Japan Society for the Promotion of Science and by the University of Amsterdam. We appreciate the excellent work of the technical support staff in Berlin, Zeuthen, Heidelberg, Palaiseau, Paris, Saclay, T\u00fcbingen and in Namibia in the construction and operation of the equipment. This work benefited from services provided by the H.E.S.S. Virtual Organisation, supported by the national resource providers of the EGI Federation. The Fermi-LAT Collaboration acknowledges generous ongoing support from a number of agencies and institutes that have supported both the development and the operation of the LAT as well as scientific data analysis. These include the National Aeronautics and Space Administration and the Department of Energy in the United States, the Commissariat \u00e0 l'Energie Atomique and the Centre National de la Recherche Scientifique/Institut National de Physique Nucl\u00e9aire et de Physique des Particules in France, the Agenzia Spaziale Italiana and the Istituto Nazionale di Fisica Nucleare in Italy, the Ministry of Education, Culture, Sports, Science and Technology (MEXT), High Energy Accelerator Research Organization (KEK) and Japan Aerospace Exploration Agency (JAXA) in Japan, and the K. A. Wallenberg Foundation, the Swedish Research Council and the Swedish National Space Board in Sweden. Additional support for science analysis during the operations phase from the following agencies is also gratefully acknowledged: the Istituto Nazionale di Astrofisica in Italy and and the Centre National d'Etudes Spatiales in France. This work performed in part under DOE Contract DE-AC02-76SF00515. This work was supported under NASA Contract No. NNG08FD60C and made use of data from the NuSTAR mission, a project led by the California Institute of Technology, managed by the Jet Propulsion Laboratory, and funded by the National Aeronautics and Space Administration. We thank the NuSTAR Operations, Software, and Calibration teams for support with the execution and analysis of these observations. This research has made use of the NuSTAR Data Analysis Software (NuSTARDAS) jointly developed by the ASI Science Data Center (ASDC, Italy) and the California Institute of Technology (USA). This research has made use of the NASA/IPAC Extragalactic Database (NED) which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration. This research made use of Enrico, a community-developed Python package to simplify Fermi-LAT analysis (Sanchez & Deil 2013). This research has made use of the VizieR catalogue access tool, CDS, Strasbourg, France. The original description of the VizieR service was published in A&AS 143, 23. This work has been done thanks to the facilities offered by the Universit\u00e9 Savoie Mont Blanc MUST computing center. M. Cerruti has received financial support through the Postdoctoral Junior Leader Fellowship Programme from la Caixa Banking Foundation, grant n. LCF/BQ/LI18/11630012. M. B. gratefully acknowledges financial support from NASA Headquarters under the NASA Earth and Space Science Fellowship Program (grant NNX14AQ07H), and from the Black Hole Initiative at Harvard University, which is funded through a grant from the John Templeton Foundation.\n\n
Published - aa36900-19.pdf
Accepted Version - 1912.07273.pdf
", "abstract": "Here we report the results of the first ever contemporaneous multi-wavelength observation campaign on the BL Lac object PKS 2155\u2212304 involving Swift, NuSTAR, Fermi-LAT, and H.E.S.S. The use of these instruments allows us to cover a broad energy range, which is important for disentangling the different radiative mechanisms. The source, observed from June 2013 to October 2013, was found in a low flux state with respect to previous observations but exhibited highly significant flux variability in the X-rays. The high-energy end of the synchrotron spectrum can be traced up to 40 keV without significant contamination by high-energy emission. A one-zone synchrotron self-Compton model was used to reproduce the broadband flux of the source for all the observations presented here but failed for previous observations made in April 2013. A lepto-hadronic solution was then explored to explain these earlier observational results.", "date": "2020-07", "date_type": "published", "publication": "Astronomy and Astrophysics", "volume": "639", "publisher": "EDP Sciences", "pagerange": "Art. No. A42", "id_number": "CaltechAUTHORS:20200708-065827527", "issn": "0004-6361", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20200708-065827527", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "Bundesministerium f\u00fcr Bildung und Forschung (BMBF)" }, { "agency": "Max Planck Society" }, { "agency": "Deutsche Forschungsgemeinschaft (DFG)" }, { "agency": "Helmholtz Association" }, { "agency": "Alexander von Humboldt Foundation" }, { "agency": "Minist\u00e8re de l'Enseignement sup\u00e9rieur, de la Recherche et de l'Innovation (MESRI)" }, { "agency": "Centre National de la Recherche Scientifique (CNRS)" }, { "agency": "Institut National de Physique Nucl\u00e9aire et de Physique des Particules (IN2P3)" }, { "agency": "Centre National de la Recherche Scientifique (CNRS)" }, { "agency": "Institut National des Sciences de l'Univers (INSU)" }, { "agency": "Commissariat \u00e0 l'\u00c9nergie Atomique et aux \u00c9nergies Alternatives (CEA)" }, { "agency": "Science and Technology Facilities Council (STFC)" }, { "agency": "Knut and Alice Wallenberg Foundation" }, { "agency": "National Science Centre (Poland)", "grant_number": "2016/22/M/ST9/00382" }, { "agency": "Department of Science and Technology (South Africa)" }, { "agency": "National Research Foundation (South Africa)" }, { "agency": "University of Namibia" }, { "agency": "National Commission on Research, Science and Technology (Namibia)" }, { "agency": "Bundesministerium f\u00fcr Bildung, Wissenschaft, Forschung und Technologie (BMBF)" }, { "agency": "FWF Der Wissenschaftsfonds" }, { "agency": "Australian Research Council" }, { "agency": "Japan Society for the Promotion of Science (JSPS)" }, { "agency": "University of Amsterdam" }, { "agency": "Department of Energy (DOE)", "grant_number": "DE-AC02-76SF00515" }, { "agency": "NASA", "grant_number": "NNG08FD60C" }, { "agency": "NASA/JPL/Caltech" }, { "agency": "la Caixa Banking Foundation", "grant_number": "LCF/BQ/LI18/11630012" }, { "agency": "NASA Earth and Space Science Fellowship", "grant_number": "NNX14AQ07H" }, { "agency": "Harvard University" }, { "agency": "John Templeton Foundation" } ] }, "local_group": { "items": [ { "id": "Astronomy-Department" }, { "id": "Space-Radiation-Laboratory" } ] }, "doi": "10.1051/0004-6361/201936900", "primary_object": { "basename": "1912.07273.pdf", "url": "https://authors.library.caltech.edu/records/cvzck-kq224/files/1912.07273.pdf" }, "related_objects": [ { "basename": "aa36900-19.pdf", "url": "https://authors.library.caltech.edu/records/cvzck-kq224/files/aa36900-19.pdf" } ], "resource_type": "article", "pub_year": "2020", "author_list": "Abdalla, H.; Adam, R.; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/v2mas-3we29", "eprint_id": 103715, "eprint_status": "archive", "datestamp": "2023-08-19 21:20:56", "lastmod": "2023-10-20 16:38:25", "type": "monograph", "metadata_visibility": "show", "creators": { "items": [ { "id": "Madsen-K-K", "name": { "family": "Madsen", "given": "Kristin K." }, "orcid": "0000-0003-1252-4891" }, { "id": "Grefenstette-B-W", "name": { "family": "Grefenstette", "given": "Brian W." }, "orcid": "0000-0002-1984-2932" }, { "id": "Pike-S-N", "name": { "family": "Pike", "given": "Sean" }, "orcid": "0000-0002-8403-0041" }, { "id": "Miyasaka-Hiromasa", "name": { "family": "Miyasaka", "given": "Hiromasa" }, "orcid": "0000-0002-8074-4186" }, { "id": "Brightman-M", "name": { "family": "Brightman", "given": "Murray" }, "orcid": "0000-0002-8147-2602" }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Harrison-F-A", "name": { "family": "Harrison", "given": "Fiona A." }, "orcid": "0000-0003-2992-8024" } ] }, "title": "NuSTAR low energy effective area correction due to thermal blanket tear", "ispublished": "unpub", "full_text_status": "public", "keywords": "space vehicles: instruments", "note": "This work was supported under NASA Contract No. NNG08FD60C, and made use of data from the NuSTAR mission, a project led by the California Institute of Technology, managed by the Jet Propulsion Laboratory, and funded by the National Aeronautics and Space Administration. We thank the NuSTAR Operations, Software and Calibration teams for support with the execution and analysis of these observations. This research has made use of the NuSTAR Data Analysis Software (NuSTARDAS) jointly developed by the ASI Science Data Center (ASDC, Italy) and the California Institute of Technology (USA). \n\nFacility: NuSTAR\n\nThis document serves as a technical note for the NuSTAR CALDB version 20200429. The CADLB release is the first in a two parts made to address the problem described in the paper. The paper will be updated with the second release, and will be submitted to a journal after the final release.\n\nSubmitted - 2005.00569.pdf
", "abstract": "A rip in the MLI at the exit aperture of OMA, the NuSTAR optic aligned with detector focal plane module FPMA, has resulted in an increased photon flux through OMA that has manifested itself as a low energy excess. Overall, the MLI coverage has decreased by 10%, but there is an additional time-varying component, which occasionally causes the opening to increase by up to 20%. We address the problem with a calibration update, and in this paper, we describe the attributes of the problem, the implications it has on data analysis, and the solution.", "date": "2020-06-05", "date_type": "published", "publisher": "arXiv", "id_number": "CaltechAUTHORS:20200604-151455025", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20200604-151455025", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA", "grant_number": "NNG08FD60C" }, { "agency": "NASA/JPL/Caltech" } ] }, "local_group": { "items": [ { "id": "Astronomy-Department" }, { "id": "Space-Radiation-Laboratory" }, { "id": "NuSTAR" } ] }, "doi": "10.48550/arXiv.2005.00569", "primary_object": { "basename": "2005.00569.pdf", "url": "https://authors.library.caltech.edu/records/v2mas-3we29/files/2005.00569.pdf" }, "resource_type": "monograph", "pub_year": "2020", "author_list": "Madsen, Kristin K.; Grefenstette, Brian W.; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/tgyhj-1tg34", "eprint_id": 97736, "eprint_status": "archive", "datestamp": "2023-08-19 18:37:33", "lastmod": "2023-10-18 16:39:56", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Garc\u00eda-Javier-A", "name": { "family": "Garc\u00eda", "given": "Javier A." }, "orcid": "0000-0003-3828-2448" }, { "id": "Tomsick-J-A", "name": { "family": "Tomsick", "given": "John A." }, "orcid": "0000-0001-5506-9855" }, { "id": "Sridhar-N", "name": { "family": "Sridhar", "given": "Navin" }, "orcid": "0000-0002-5519-9550" }, { "id": "Grinberg-V", "name": { "family": "Grinberg", "given": "Victoria" }, "orcid": "0000-0003-2538-0188" }, { "id": "Connors-R-M-T", "name": { "family": "Connors", "given": "Riley M. T." }, "orcid": "0000-0002-8908-759X" }, { "id": "Wang-Jingyi", "name": { "family": "Wang", "given": "Jingyi" }, "orcid": "0000-0002-1742-2125" }, { "id": "Steiner-J-F", "name": { "family": "Steiner", "given": "James F." }, "orcid": "0000-0002-5872-6061" }, { "id": "Dauser-T", "name": { "family": "Dauser", "given": "Thomas" }, "orcid": "0000-0003-4583-9048" }, { "id": "Walton-D-J", "name": { "family": "Walton", "given": "Dominic J." }, "orcid": "0000-0001-5819-3552" }, { "id": "Xu-Yanjun", "name": { "family": "Xu", "given": "Yanjun" }, "orcid": "0000-0003-2443-3698" }, { "id": "Harrison-F-A", "name": { "family": "Harrison", "given": "Fiona A." }, "orcid": "0000-0003-2992-8024" }, { "id": "Forster-K", "name": { "family": "Foster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Grefenstette-B-W", "name": { "family": "Grefenstette", "given": "Brian" }, "orcid": "0000-0002-1984-2932" }, { "id": "Madsen-K-K", "name": { "family": "Madsen", "given": "Kristin" }, "orcid": "0000-0003-1252-4891" }, { "id": "Fabian-A-C", "name": { "family": "Fabian", "given": "Andrew" }, "orcid": "0000-0002-9378-4072" } ] }, "title": "The 2017 Failed Outburst of GX 339-4: Relativistic X-ray Reflection near the Black Hole Revealed by NuSTAR and Swift Spectroscopy", "ispublished": "pub", "full_text_status": "public", "keywords": "accretion, accretion disks \u2013 atomic processes \u2013 black hole physics \u2013 line: formation \u2013 X-rays: individual (GX 339-4)", "note": "\u00a9 2019 The American Astronomical Society. \n\nReceived 2019 May 4; revised 2019 August 1; accepted 2019 August 2; published 2019 October 29. \n\nWe thank the anonymous referee for the careful revision of this paper. We also thank Erin Kara and Didier Barret for enlightening discussions on the implications of the dual-lamppost model. J.A.G. acknowledges support from NASA grant NNX17AJ65G and from the Alexander von Humboldt Foundation. R.M.T.C. has been supported by NASA ADAP grant 80NSSC177K0515. V.G. is supported through the Margarete von Wrangell fellowship by the ESF and the Ministry of Science, Research and the Arts Baden-W\u00fcrttemberg. N.S. would like to acknowledge the support from DST-INSPIRE and Caltech SURF-2017 fellowships. This work was partially supported under NASA contract No. NNG08FD60C and made use of data from the NuSTAR mission, a project led by the California Institute of Technology, managed by the Jet Propulsion Laboratory, and funded by the National Aeronautics and Space Administration. We thank the NuSTAR Operations, Software, and Calibration teams for support with the execution and analysis of these observations. This research has made use of the NuSTAR Data Analysis Software (NuSTARDAS), jointly developed by the ASI Science Data Center (ASDC, Italy) and the California Institute of Technology (USA). \n\nFacilities: NuSTAR - The NuSTAR (Nuclear Spectroscopic Telescope Array) mission, Swift. - \n\nSoftware: xspec (v12.10.0c; Arnaud 1996), xillver (Garc\u00eda & Kallman 2010; Garc\u00eda et al. 2013), relxill (v1.2.0; Dauser et al. 2014; Garc\u00eda et al. 2014), nustradas (v1.6.0).\n\nPublished - Garc\u00eda_2019_ApJ_885_48.pdf
Submitted - 1908.00965.pdf
", "abstract": "We report on the spectroscopic analysis of the black hole binary GX 339\u22124 during its recent 2017\u20132018 outburst, observed simultaneously by the Swift and NuSTAR observatories. Although during this particular outburst the source failed to make state transitions, and despite Sun constraints during the peak luminosity, we were able to trigger four different observations sampling the evolution of the source in the hard state. We show that even for the lowest-luminosity observations the NuSTAR spectra show clear signatures of X-ray reprocessing (reflection) in an accretion disk. Detailed analysis of the highest signal-to-noise spectra with our family of relativistic reflection models RELXILL indicates the presence of both broad and narrow reflection components. We find that a dual-lamppost model provides a superior fit when compared to the standard single lamppost plus distant neutral reflection. In the dual-lamppost model two sources at different heights are placed on the rotational axis of the black hole, suggesting that the narrow component of the Fe K emission is likely to originate in regions far away in the disk, but still significantly affected by its rotational motions. Regardless of the geometry assumed, we find that the inner edge of the accretion disk reaches a few gravitational radii in all our fits, consistent with previous determinations at similar luminosity levels. This confirms a very low degree of disk truncation for this source at luminosities above ~1% Eddington. Our estimates of R_(in) reinforce the suggested behavior for an inner disk that approaches the innermost regions as the luminosity increases in the hard state.", "date": "2019-11-01", "date_type": "published", "publication": "Astrophysical Journal", "volume": "885", "number": "1", "publisher": "American Astronomical Society", "pagerange": "Art. No. 48", "id_number": "CaltechAUTHORS:20190809-154849136", "issn": "1538-4357", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20190809-154849136", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA", "grant_number": "NNX17AJ65G" }, { "agency": "Alexander von Humboldt Foundation" }, { "agency": "NASA", "grant_number": "80NSSC177K0515" }, { "agency": "European Social Fund" }, { "agency": "Baden-W\u00fcrttemberg Ministry of Science, Research and the Arts" }, { "agency": "Caltech Summer Undergraduate Research Fellowship (SURF)" }, { "agency": "NASA", "grant_number": "NNG08FD60C" }, { "agency": "NASA/JPL/Caltech" } ] }, "local_group": { "items": [ { "id": "NuSTAR" }, { "id": "Space-Radiation-Laboratory" }, { "id": "Astronomy-Department" } ] }, "doi": "10.3847/1538-4357/ab384f", "primary_object": { "basename": "1908.00965.pdf", "url": "https://authors.library.caltech.edu/records/tgyhj-1tg34/files/1908.00965.pdf" }, "related_objects": [ { "basename": "Garc\u00eda_2019_ApJ_885_48.pdf", "url": "https://authors.library.caltech.edu/records/tgyhj-1tg34/files/Garc\u00eda_2019_ApJ_885_48.pdf" } ], "resource_type": "article", "pub_year": "2019", "author_list": "Garc\u00eda, Javier A.; Tomsick, John A.; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/r9vxs-49d20", "eprint_id": 89696, "eprint_status": "archive", "datestamp": "2023-08-19 11:31:54", "lastmod": "2023-10-18 22:55:48", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Xu-Yanjun", "name": { "family": "Xu", "given": "Yanjun" }, "orcid": "0000-0003-2443-3698" }, { "id": "Harrison-F-A", "name": { "family": "Harrison", "given": "Fiona A." }, "orcid": "0000-0003-2992-8024" }, { "id": "Kennea-J-A", "name": { "family": "Kennea", "given": "Jamie A." }, "orcid": "0000-0002-6745-4790" }, { "id": "Walton-D-J", "name": { "family": "Walton", "given": "Dominic J." }, "orcid": "0000-0001-5819-3552" }, { "id": "Tomsick-J-A", "name": { "family": "Tomsick", "given": "John A." }, "orcid": "0000-0001-5506-9855" }, { "id": "Miller-J-M", "name": { "family": "Miller", "given": "Jon M." } }, { "id": "Barret-D", "name": { "family": "Barret", "given": "Didier" }, "orcid": "0000-0002-0393-9190" }, { "id": "Fabian-A-C", "name": { "family": "Fabian", "given": "Andrew C." }, "orcid": "0000-0002-9378-4072" }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "F\u00fcrst-F", "name": { "family": "F\u00fcrst", "given": "Felix" }, "orcid": "0000-0003-0388-0560" }, { "id": "Gandhi-Poshak", "name": { "family": "Gandhi", "given": "Poshak" }, "orcid": "0000-0003-3105-2615" }, { "id": "Garc\u00eda-Javier-A", "name": { "family": "Garc\u00eda", "given": "Javier A." }, "orcid": "0000-0003-3828-2448" } ] }, "title": "The Hard State of the Highly Absorbed High Inclination Black Hole Binary Candidate Swift J1658.2\u20134242 Observed by NuSTAR and Swift", "ispublished": "pub", "full_text_status": "public", "keywords": "accretion, accretion disks \u2013 X-rays: binaries \u2013 X-rays: individual (Swift J1658.2-4242)", "note": "\u00a9 2018 The American Astronomical Society. \n\nReceived 2018 May 18; revised 2018 July 30; accepted 2018 August 9; published 2018 September 18. \n\nWe thank the referee for helpful comments that improved this work. D.J.W. acknowledges support from STFC Ernest Rutherford Fellowship. This work was supported under NASA contract No. NNG08FD60C and made use of data from the NuSTAR mission, a project led by the California Institute of Technology, managed by the Jet Propulsion Laboratory, and funded by the National Aeronautics and Space Administration. We thank the NuSTAR Operations, Software, and Calibration teams for support with the execution and analysis of these observations. This research has made use of the NuSTAR Data Analysis Software (NuSTARDAS), jointly developed by the ASI Science Data Center (ASDC, Italy) and the California Institute of Technology (USA).\n\nPublished - Xu_2018_ApJ_865_18.pdf
Accepted Version - 1805.07705.pdf
", "abstract": "We present a spectral and timing analysis of the newly reported Galactic X-ray transient Swift J1658.2\u20134242 observed by Nuclear Spectroscopic Telescope Array (NuSTAR) and Swift. The broadband X-ray continuum is typical of a black hole binary in the bright hard state, with a photon index of \u0393 = 1.63 \u00b1 0.02 and a low coronal temperature of kT_e = 22 \u00b1 1 keV, corresponding to a low spectral cutoff well constrained by NuSTAR. Spectral modeling of the relativistic disk reflection features, consisting of a broad Fe K\u03b1 line and the Compton reflection hump, reveals that the black hole is rapidly spinning with the spin parameter of a* > 0.96, and the inner accretion disk is viewed at a high inclination angle of I = 64^(2 o)_(-3) (statistical errors, 90% confidence). The high inclination is independently confirmed by dips in the light curves, which can be explained by absorbing material located near the disk plane temporarily obscuring the central region. In addition, we detect an absorption line in the NuSTAR spectra centered at 7.03^(+0.04)_(-0.03) keV. If associated with ionized Fe K absorption lines, this provides evidence for the presence of outflowing material in the low/hard state of a black hole binary candidate. A timing analysis shows the presence of a type-C quasi-periodic oscillation in the power spectrum, with the frequency increasing from ~0.14 to ~0.21 Hz during the single NuSTAR exposure. Our analysis reveals that Swift J1658.2\u20134242 displays characteristics typical for a black hole binary that is viewed at a high inclination angle, making it a good system for studying the accretion geometry in black hole binaries.", "date": "2018-09-20", "date_type": "published", "publication": "Astrophysical Journal", "volume": "865", "number": "1", "publisher": "American Astronomical Society", "pagerange": "Art. No. 18", "id_number": "CaltechAUTHORS:20180918-091012752", "issn": "1538-4357", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20180918-091012752", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "Science and Technology Facilities Council (STFC)" }, { "agency": "NASA", "grant_number": "NNG08FD60C" }, { "agency": "NASA/JPL/Caltech" } ] }, "local_group": { "items": [ { "id": "NuSTAR" }, { "id": "Space-Radiation-Laboratory" }, { "id": "Astronomy-Department" } ] }, "doi": "10.3847/1538-4357/aada03", "primary_object": { "basename": "1805.07705.pdf", "url": "https://authors.library.caltech.edu/records/r9vxs-49d20/files/1805.07705.pdf" }, "related_objects": [ { "basename": "Xu_2018_ApJ_865_18.pdf", "url": "https://authors.library.caltech.edu/records/r9vxs-49d20/files/Xu_2018_ApJ_865_18.pdf" } ], "resource_type": "article", "pub_year": "2018", "author_list": "Xu, Yanjun; Harrison, Fiona A.; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/5jmq2-jfk90", "eprint_id": 84915, "eprint_status": "archive", "datestamp": "2023-08-19 08:12:02", "lastmod": "2023-10-18 16:58:09", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Drinkwater-M-J", "name": { "family": "Drinkwater", "given": "Michael J." } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. Christopher" }, "orcid": "0000-0002-8650-1644" } ] }, "title": "The WiggleZ Dark Energy Survey: final data release and the metallicity of UV-luminous galaxies", "ispublished": "pub", "full_text_status": "public", "keywords": "surveys, galaxies: abundances, galaxies: photometry, galaxies: starburst, cosmology: observations, ultraviolet: galaxies", "note": "\u00a9 2017 The Author(s). Published by Oxford University Press on behalf of the Royal Astronomical Society. \n\nAccepted 2017 November 14. Received 2017 October 19; in original form 2016 October 19. Published: 21 November 2017. \n\nThis project would not be possible without the superb AAOmega/2dF facility provided by the Anglo-Australian Observatory. We wish to thank all the AAO staff for their support, especially the night assistants, support astronomers, and Russell Cannon (who greatly assisted with the quality control of the 2dF system). \n\nWe also wish to thank Heinz Andernach for feedback on this manuscript; Alejandro Dubrovsky for writing software used to check the guide star and blank sky positions; Maksym Bernyk, David Barnes, and Rod Harris for help with the data base construction; Peter Jensen for assistance with the redshift measurements; and Michael Stanley for help with the selection of new GALEX positions. We thank the referee for many suggestions which have improved the manuscript. \n\nWe wish to acknowledge financial support from The Australian Research Council (grants DP0772084, DP1093738, and LX0881951 directly for the WiggleZ project, and grant LE0668442 for programming support), Swinburne University of Technology, The University of Queensland, the Anglo-Australian Observatory, and The Gregg Thompson Dark Energy Travel Fund. MJD thanks the International Centre for Radio Astronomy Research and University of Western Australia for travel support. SB acknowledges funding support from the Australian Research Council through a Future Fellowship (FT140101166). \n\nGALEX is a NASA Small Explorer, launched in 2003 April. We gratefully acknowledge NASA's support for construction, operation, and science analysis for the GALEX mission, developed in cooperation with the Centre National d'Etudes Spatiales of France and the Korean Ministry of Science and Technology. \n\nFunding for the SDSS and SDSS-II has been provided by the Alfred P. Sloan Foundation, the Participating Institutions, the National Science Foundation, the U.S. Department of Energy, the National Aeronautics and Space Administration, the Japanese Monbukagakusho, the Max Planck Society, and the Higher Education Funding Council for England. The SDSS website is http://www.sdss.org/. \n\nThe RCS2 survey is based on observations obtained with MegaPrime/MegaCam, a joint project of the CFHT and CEA/DAPNIA, at the CFHT which is operated by the National Research Council of Canada, the Institut National des Sciences de l'Univers of France, and the University of Hawaii. The RCS2 survey is supported by grants to HKCY from the Canada Research Chair program and the Discovery program of the Natural Science and Engineering Research Council of Canada.\n\nPublished - stx2963.pdf
Supplemental Material - stx2963_supp.zip
", "abstract": "The WiggleZ Dark Energy Survey measured the redshifts of over 200\u2009000 ultraviolet (UV)-selected (NUV < 22.8\u2009mag) galaxies on the Anglo-Australian Telescope. The survey detected the baryon acoustic oscillation signal in the large-scale distribution of galaxies over the redshift range 0.2 < z < 1.0, confirming the acceleration of the expansion of the Universe and measuring the rate of structure growth within it. Here, we present the final data release of the survey: a catalogue of 225\u2009415 galaxies and individual files of the galaxy spectra. We analyse the emission-line properties of these UV-luminous Lyman-break galaxies by stacking the spectra in bins of luminosity, redshift, and stellar mass. The most luminous (\u221225mag < M_(FUV) < \u221222mag) galaxies have very broad H\u03b2 emission from active nuclei, as well as a broad second component to the [O\u2009III] (495.9 nm, 500.7 nm) doublet lines that is blueshifted by 100\u2009km\u2009s^(\u22121)\u2009, indicating the presence of gas outflows in these galaxies. The composite spectra allow us to detect and measure the temperature-sensitive [O\u2009III] (436.3 nm) line and obtain metallicities using the direct method. The metallicities of intermediate stellar mass (8.8 < log\u2009(M*/M\u2299) < 10) WiggleZ galaxies are consistent with normal emission-line galaxies at the same masses. In contrast, the metallicities of high stellar mass (10 < log\u2009(M*/M\u2299) < 12) WiggleZ galaxies are significantly lower than for normal emission-line galaxies at the same masses. This is not an effect of evolution as the metallicities do not vary with redshift; it is most likely a property specific to the extremely UV-luminous WiggleZ galaxies.", "date": "2018-03-01", "date_type": "published", "publication": "Monthly Notices of the Royal Astronomical Society", "volume": "474", "number": "3", "publisher": "Royal Astronomical Society", "pagerange": "4151-4168", "id_number": "CaltechAUTHORS:20180221-161601120", "issn": "0035-8711", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20180221-161601120", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "Australian Research Council", "grant_number": "DP0772084" }, { "agency": "Australian Research Council", "grant_number": "DP1093738" }, { "agency": "Australian Research Council", "grant_number": "LX0881951" }, { "agency": "Australian Research Council", "grant_number": "LE0668442" }, { "agency": "Swinburne University of Technology" }, { "agency": "University of Queensland" }, { "agency": "Anglo-Australian Observatory" }, { "agency": "Gregg Thompson Dark Energy Travel Fund" }, { "agency": "Australian Research Council", "grant_number": "FT140101166" }, { "agency": "Alfred P. Sloan Foundation" }, { "agency": "Participating Institutions" }, { "agency": "NSF" }, { "agency": "Department of Energy (DOE)" }, { "agency": "NASA" }, { "agency": "Japanese Monbukagakusho" }, { "agency": "Max Planck Society" }, { "agency": "Higher Education Funding Council for England" }, { "agency": "Canada Research Chairs Program" }, { "agency": "Natural Sciences and Engineering Research Council of Canada (NSERC)" } ] }, "doi": "10.1093/mnras/stx2963", "primary_object": { "basename": "stx2963.pdf", "url": "https://authors.library.caltech.edu/records/5jmq2-jfk90/files/stx2963.pdf" }, "related_objects": [ { "basename": "stx2963_supp.zip", "url": "https://authors.library.caltech.edu/records/5jmq2-jfk90/files/stx2963_supp.zip" } ], "resource_type": "article", "pub_year": "2018", "author_list": "Drinkwater, Michael J.; Forster, Karl; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/6vcch-hm513", "eprint_id": 82060, "eprint_status": "archive", "datestamp": "2023-08-19 06:58:58", "lastmod": "2023-10-17 22:00:57", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Evans-P-A", "name": { "family": "Evans", "given": "P. A." }, "orcid": "0000-0002-8465-3353" }, { "id": "Madsen-K-K", "name": { "family": "Madsen", "given": "K. K." }, "orcid": "0000-0003-1252-4891" }, { "id": "Harrison-F-A", "name": { "family": "Harrison", "given": "F. A." }, "orcid": "0000-0003-2992-8024" }, { "id": "Xu-Yanjun", "name": { "family": "Xu", "given": "Y." }, "orcid": "0000-0003-2443-3698" }, { "id": "Forster-K", "name": { "family": "Forster", "given": "K." }, "orcid": "0000-0001-5800-5531" }, { "id": "Garc\u00eda-Javier-A", "name": { "family": "Garc\u00eda", "given": "J." }, "orcid": "0000-0003-3828-2448" }, { "id": "Grefenstette-B-W", "name": { "family": "Grefenstette", "given": "B." }, "orcid": "0000-0002-1984-2932" }, { "id": "Heida-M", "name": { "family": "Heida", "given": "M." }, "orcid": "0000-0002-1082-7496" }, { "id": "Miyasaka-Hiromasa", "name": { "family": "Miyasaka", "given": "H." }, "orcid": "0000-0002-8074-4186" }, { "id": "Pike-S-N", "name": { "family": "Pike", "given": "S." }, "orcid": "0000-0002-8403-0041" }, { "id": "Rosswog-S", "name": { "family": "Rosswog", "given": "S." } } ] }, "title": "Swift and NuSTAR observations of GW170817: detection of a blue kilonova", "ispublished": "pub", "full_text_status": "public", "note": "\u00a9 2017 American Association for the Advancement of Science. \n\nReceived 14 September 2017; accepted 4 October 2017; Published online 16 October 2017. \n\nWe acknowledge the leadership and scientific vision of Neil Gehrels (1952\u20132017), former PI of Swift, without whom the work we present here would not have been possible. Funding for the Swift mission in the UK is provided by the UK Space Agency. SRO gratefully acknowledges the support of the Leverhulme Trust Early Career Fellowship (SRO). The Swift team at the MOC at Penn State acknowledges support from NASA contract NAS5-00136. The Italian Swift team acknowledge support from ASI-INAF grant I/004/11/3. SR has been supported by the Swedish Research Council (VR) under grant number 2016-03657_3, by the Swedish National Space Board under grant number Dnr. 107/16 and by the research environment grant \"Gravitational Radiation and Electromagnetic Astrophysical Transients (GREAT)\" funded by the Swedish Research council (VR) under Dnr 2016- 06012. This research used resources provided by the Los Alamos National Laboratory Institutional Computing Program, which is supported by the U.S. Department of Energy National Nuclear Security Administration under Contract No. DE-AC52-06NA25396. VLT data were obtained under ESO program number 099.D-0668. NuSTAR acknowledges funding from NASA Contract No. NNG08FD60C. A.J.L. and N.R.T. acknowledge funding from the European Research Council under the European Union's Horizon 2020 programme, grant number 725246. Researchers at Los Alamos National Laboratory were supported by the National Nuclear Security Administration of the US Department of Energy under contract number DE-AC52-06NA25396. SWKE is supported by a Science and Technology Facilities Council studentship. The observations are archived at http://www.swift.ac.uk for Swift and https://heasarc.gsfc.nasa.gov/docs/nustar/nustar_archive.html for NuSTAR, under the observation IDs given in Table S2. Reduced photometry and surveyed areas are tabulated in the supplementary material. The BOXFIT software is available at http://cosmo.nyu.edu/afterglowlibrary/boxfit2011.html, SUPERNU at https://bitbucket.org/drrossum/supernu/wiki/Home, access to WINNET source code and input files will be granted upon request via: https://bitbucket.org/korobkin/winnet. The dynamical model ejecta are available at http://compact-merger.astro.su.se/downloads_fluid_trajectories.html (as run 12). The SUPERNU and BOXFIT input files are available in the supplementary materials.\n\nAccepted Version - 1710.05437.pdf
Supplemental Material - aap9580-Evans-SM.pdf
Supplemental Material - aap9580-Evans-SM_add_data.zip
", "abstract": "With the first direct detection of merging black holes in 2015, the era of gravitational wave (GW) astrophysics began. A complete picture of compact object mergers, however, requires the detection of an electromagnetic (EM) counterpart. We report ultraviolet (UV) and x-ray observations by Swift and the Nuclear Spectroscopic Telescope Array of the EM counterpart of the binary neutron star merger GW170817. The bright, rapidly fading UV emission indicates a high mass (\u22480.03 solar masses) wind-driven outflow with moderate electron fraction (Ye \u2248 0.27). Combined with the x-ray limits, we favor an observer viewing angle of \u224830\u00b0 away from the orbital rotation axis, which avoids both obscuration from the heaviest elements in the orbital plane and a direct view of any ultrarelativistic, highly collimated ejecta (a \u03b3-ray burst afterglow).", "date": "2017-12-22", "date_type": "published", "publication": "Science", "volume": "358", "number": "6370", "publisher": "American Association for the Advancement of Science", "pagerange": "1565-1570", "id_number": "CaltechAUTHORS:20171004-130639886", "issn": "0036-8075", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20171004-130639886", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "United Kingdom Space Agency (UKSA)" }, { "agency": "Leverhulme Trust" }, { "agency": "NASA", "grant_number": "NAS5-00136" }, { "agency": "Agenzia Spaziale Italiana (ASI)", "grant_number": "I/004/11/3" }, { "agency": "Swedish Research Council", "grant_number": "2016-03657_3" }, { "agency": "Swedish National Space Board", "grant_number": "Dnr. 107/16" }, { "agency": "Swedish Research Council", "grant_number": "Dnr 2016-06012" }, { "agency": "Department of Energy (DOE)", "grant_number": "DE-AC52-06NA25396" }, { "agency": "NASA", "grant_number": "NNG08FD60C" }, { "agency": "European Research Council (ERC)", "grant_number": "725246" }, { "agency": "Science and Technology Facilities Council (STFC)" } ] }, "local_group": { "items": [ { "id": "NuSTAR" }, { "id": "Space-Radiation-Laboratory" }, { "id": "Astronomy-Department" } ] }, "doi": "10.1126/science.aap9580", "primary_object": { "basename": "aap9580-Evans-SM_add_data.zip", "url": "https://authors.library.caltech.edu/records/6vcch-hm513/files/aap9580-Evans-SM_add_data.zip" }, "related_objects": [ { "basename": "1710.05437.pdf", "url": "https://authors.library.caltech.edu/records/6vcch-hm513/files/1710.05437.pdf" }, { "basename": "aap9580-Evans-SM.pdf", "url": "https://authors.library.caltech.edu/records/6vcch-hm513/files/aap9580-Evans-SM.pdf" } ], "resource_type": "article", "pub_year": "2017", "author_list": "Evans, P. A.; Madsen, K. K.; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/4n7y1-j6b02", "eprint_id": 84115, "eprint_status": "archive", "datestamp": "2023-08-21 21:54:26", "lastmod": "2023-10-18 14:42:21", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Madsen-K-K", "name": { "family": "Madsen", "given": "Kristin K." }, "orcid": "0000-0003-1252-4891" }, { "id": "Christensen-F-E", "name": { "family": "Christensen", "given": "Finn E." }, "orcid": "0000-0001-5679-1946" }, { "id": "Craig-W-W", "name": { "family": "Craig", "given": "William W." } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl W." }, "orcid": "0000-0001-5800-5531" }, { "id": "Grefenstette-B-W", "name": { "family": "Grefenstette", "given": "Brian W." }, "orcid": "0000-0002-1984-2932" }, { "id": "Harrison-F-A", "name": { "family": "Harrison", "given": "Fiona A." }, "orcid": "0000-0003-2992-8024" }, { "id": "Miyasaka-Hiromasa", "name": { "family": "Miyasaka", "given": "Hiromasa" }, "orcid": "0000-0002-8074-4186" }, { "id": "Rana-V-R", "name": { "family": "Rana", "given": "Vikram" }, "orcid": "0000-0003-1703-8796" } ] }, "title": "Observational artifacts of Nuclear Spectroscopic Telescope Array: ghost rays and stray light", "ispublished": "pub", "full_text_status": "public", "keywords": "Nuclear Spectroscopic Telescope Array; optics; satellite", "note": "\u00a9 2017 The Authors. Published by SPIE under a Creative Commons Attribution 3.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI. \n\nPaper 17029P received Jun. 27, 2017; accepted for publication Oct. 3, 2017; published online Oct. 27, 2017. \n\nThis work was supported under NASA Contract No. NNG08FD60C and made use of data from the NuSTAR mission, a project led by the California Institute of Technology, managed by the Jet Propulsion Laboratory, and funded by the National Aeronautics and Space Administration. We thank the NuSTAR Operations, Software, and Calibration teams for support with the execution and analysis of these observations. This research has made use of the NuSTAR Data Analysis Software (NuSTARDAS) jointly developed by the ASI Science Data Center (ASDC, Italy) and the California Institute of Technology.\n\nPublished - 044003.pdf
Accepted Version - 1711.02719.pdf
", "abstract": "The Nuclear Spectroscopic Telescope Array (NuSTAR) launched in June 2012, flies two conical approximation Wolter-I mirrors at the end of a 10.15-m mast. The optics are coated with multilayers of Pt/C and W/Si that operate from 3 to 80 keV. Since the optical path is not shrouded, aperture stops are used to limit the field of view (FoV) from background and sources outside the FoV. However, there is still a sliver of sky (\u223c1.0\u2009\u2009deg to 4.0 deg) where photons may bypass the optics altogether and fall directly on the detector array. We term these photons stray light. Additionally, there are also photons that do not undergo the focused double reflections in the optics, and we term these ghost rays. We present detailed analysis and characterization of these two components and discuss how they impact observations. Finally, we discuss how they could have been prevented and should be in future observatories.", "date": "2017-10", "date_type": "published", "publication": "Journal of Astronomical Telescopes, Instruments, and Systems", "volume": "3", "number": "4", "publisher": "Society of Photo-optical Instrumentation Engineers (SPIE)", "pagerange": "Art. No. 044003", "id_number": "CaltechAUTHORS:20180105-081533561", "issn": "2329-4124", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20180105-081533561", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA", "grant_number": "NNG08FD60C" }, { "agency": "NASA/JPL/Caltech" } ] }, "local_group": { "items": [ { "id": "NuSTAR" }, { "id": "Space-Radiation-Laboratory" }, { "id": "Astronomy-Department" } ] }, "doi": "10.1117/1.JATIS.3.4.044003", "primary_object": { "basename": "044003.pdf", "url": "https://authors.library.caltech.edu/records/4n7y1-j6b02/files/044003.pdf" }, "related_objects": [ { "basename": "1711.02719.pdf", "url": "https://authors.library.caltech.edu/records/4n7y1-j6b02/files/1711.02719.pdf" } ], "resource_type": "article", "pub_year": "2017", "author_list": "Madsen, Kristin K.; Christensen, Finn E.; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/bh8hg-gqd74", "eprint_id": 77650, "eprint_status": "archive", "datestamp": "2023-08-21 21:05:27", "lastmod": "2023-10-25 23:19:53", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Madsen-K-K", "name": { "family": "Madsen", "given": "Kristin K." }, "orcid": "0000-0003-1252-4891" }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Grefenstette-B-W", "name": { "family": "Grefenstette", "given": "Brian W." }, "orcid": "0000-0002-1984-2932" }, { "id": "Harrison-F-A", "name": { "family": "Harrison", "given": "Fiona A." }, "orcid": "0000-0003-2992-8024" }, { "id": "Stern-D", "name": { "family": "Stern", "given": "Daniel" }, "orcid": "0000-0003-2686-9241" } ] }, "title": "Measurement of the Absolute Crab Flux with NuSTAR", "ispublished": "pub", "full_text_status": "public", "keywords": "space vehicles: instruments; X-rays: individual (Crab)", "note": "\u00a9 2017 The American Astronomical Society. \n\nReceived 2017 January 9; revised 2017 March 10; accepted 2017 March 23; published 2017 May 23. \n\nWe thank the referee for the helpful comments and suggestions. This work was supported under NASA Contract No. NNG08FD60C, and made use of data from the NuSTAR mission, a project led by the California Institute of Technology, managed by the Jet Propulsion Laboratory, and funded by the National Aeronautics and Space Administration. We thank the NuSTAR Operations, Software and Calibration teams for support with the execution and analysis of these observations. This research has made use of the NuSTAR Data Analysis Software (NuSTARDAS) jointly developed by the ASI Science Data Center (ASDC, Italy) and the California Institute of Technology (USA). \n\nFacilities: CXO, NuSTAR, Swift, Suzaku, and XMM.\n\nPublished - Madsen_2017_ApJ_841_56.pdf
Submitted - 1703.10685.pdf
", "abstract": "We present results from a Nuclear Spectroscopic Telescope Array (NuSTAR) observation of the Crab made at a large off-axis angle of 1 5. At these angles, X-rays do not pass through the optics and instead illuminate the detectors directly, due to incomplete baffling. Due to the simplicity of the instrument response in this configuration and the good absolute calibration of the detectors, we are able to measure the absolute intrinsic flux of the Crab to better than 4%. We find the spectral parameters of the power law to be \u0393 = 2.106 \u00b1 0.006, N = 9.71 \u00b1 0.16, in agreement with the values measured 42 years ago by Toor & Seward. This suggests that the observed variability of the Crab is not part of a long-term trend, but instead results from fluctuations around a steady mean. The NuSTAR observation also enabled improved measurement of the detector absorption parameters without the added complications of the mirror response.", "date": "2017-05-20", "date_type": "published", "publication": "Astrophysical Journal", "volume": "841", "number": "1", "publisher": "American Astronomical Society", "pagerange": "Art. No. 56", "id_number": "CaltechAUTHORS:20170523-091449570", "issn": "1538-4357", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20170523-091449570", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA", "grant_number": "NNG08FD60C" }, { "agency": "NASA/JPL/Caltech" } ] }, "local_group": { "items": [ { "id": "NuSTAR" }, { "id": "Space-Radiation-Laboratory" }, { "id": "Astronomy-Department" } ] }, "doi": "10.3847/1538-4357/aa6970", "primary_object": { "basename": "1703.10685.pdf", "url": "https://authors.library.caltech.edu/records/bh8hg-gqd74/files/1703.10685.pdf" }, "related_objects": [ { "basename": "Madsen_2017_ApJ_841_56.pdf", "url": "https://authors.library.caltech.edu/records/bh8hg-gqd74/files/Madsen_2017_ApJ_841_56.pdf" } ], "resource_type": "article", "pub_year": "2017", "author_list": "Madsen, Kristin K.; Forster, Karl; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/rcvsm-5xr29", "eprint_id": 72120, "eprint_status": "archive", "datestamp": "2023-08-19 02:39:46", "lastmod": "2023-10-23 17:56:39", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Walton-D-J", "name": { "family": "Walton", "given": "D. J." }, "orcid": "0000-0001-5819-3552" }, { "id": "Mooley-Kunal-Prakash", "name": { "family": "Mooley", "given": "K." }, "orcid": "0000-0002-2557-5180" }, { "id": "King-A-L", "name": { "family": "King", "given": "A" } }, { "id": "Tomsick-J-A", "name": { "family": "Tomsick", "given": "J. A." }, "orcid": "0000-0001-5506-9855" }, { "id": "Miller-J-M", "name": { "family": "Miller", "given": "J. M." } }, { "id": "Dauser-T", "name": { "family": "Dauser", "given": "T." }, "orcid": "0000-0003-4583-9048" }, { "id": "Garc\u00eda-Javier-A", "name": { "family": "Garc\u00eda", "given": "J." }, "orcid": "0000-0003-3828-2448" }, { "id": "Bachetti-M", "name": { "family": "Bachetti", "given": "M." }, "orcid": "0000-0002-4576-9337" }, { "id": "Brightman-M", "name": { "family": "Brightman", "given": "M." }, "orcid": "0000-0002-8147-2602" }, { "id": "Fabian-A-C", "name": { "family": "Fabian", "given": "A. C." }, "orcid": "0000-0002-9378-4072" }, { "id": "Forster-K", "name": { "family": "Forster", "given": "K." }, "orcid": "0000-0001-5800-5531" }, { "id": "F\u00fcrst-F", "name": { "family": "F\u00fcrst", "given": "F." }, "orcid": "0000-0003-0388-0560" }, { "id": "Gandhi-Poshak", "name": { "family": "Gandhi", "given": "P." }, "orcid": "0000-0003-3105-2615" }, { "id": "Grefenstette-B-W", "name": { "family": "Grefenstette", "given": "B. W." }, "orcid": "0000-0002-1984-2932" }, { "id": "Harrison-F-A", "name": { "family": "Harrison", "given": "F. A." }, "orcid": "0000-0003-2992-8024" }, { "id": "Madsen-K-K", "name": { "family": "Madsen", "given": "K. K." }, "orcid": "0000-0003-1252-4891" }, { "id": "Meier-D-L", "name": { "family": "Meier", "given": "D. L." } }, { "id": "Middleton-M-J", "name": { "family": "Middleton", "given": "M. J." }, "orcid": "0000-0002-8183-2970" }, { "id": "Natalucci-L", "name": { "family": "Natalucci", "given": "L." }, "orcid": "0000-0002-6601-9543" }, { "id": "Rahoui-F", "name": { "family": "Rahoui", "given": "F." }, "orcid": "0000-0001-7655-4120" }, { "id": "Rana-V-R", "name": { "family": "Rana", "given": "V." }, "orcid": "0000-0003-1703-8796" }, { "id": "Stern-D", "name": { "family": "Stern", "given": "D." }, "orcid": "0000-0003-2686-9241" } ] }, "title": "Living on a Flare: Relativistic Reflection in V404 Cyg Observed by NuSTAR During its Summer 2015 Outburst", "ispublished": "pub", "full_text_status": "public", "keywords": "black hole physics \u2013 X-rays: binaries \u2013 X-rays: individual (V404 Cyg)", "note": "\u00a9 2017 The American Astronomical Society. \n\nReceived 2016 September 2; revised 2017 March 6; accepted 2017 March 17; published 2017 April 21. \n\nThe authors thank the anonymous reviewer for suggestions that helped to improve the manuscript. D.J.W., P.G., and M.J.M. acknowledge support from STFC Ernest Rutherford fellowships (grant ST/J003697/2). K.P.M. acknowledges support from the Hintze Foundation. A.L.K. acknowledges support from NASA through an Einstein Postdoctoral Fellowship (grant number PF4-150125) awarded by the Chandra X-ray Center, operated by the Smithsonian Astrophysical Observatory for NASA under contract NAS8-03060. A.C.F. acknowledges support from ERC Advanced Grant 340442. L.N. wishes to acknowledge the Italian Space Agency (ASI) for Financial support by ASI/INAF grant I/037/12/0-011/13. This research has made use of data obtained with NuSTAR, a project led by Caltech, funded by NASA and managed by NASA/JPL, and has utilized the NUSTARDAS software package, jointly developed by the ASDC (Italy) and Caltech (USA). This research has also made use of data from AMI, which is supported by the ERC, and we thank the AMI staff for scheduling these radio observations. \n\nFacilities: NuSTAR - The NuSTAR (Nuclear Spectroscopic Telescope Array) mission, AMI - Arcminute MicroKelvin Imager.\n\nPublished - Walton_2017_ApJ_839_110.pdf
Submitted - 1609.01293v1.pdf
", "abstract": "We present first results from a series of NuSTAR observations of the black hole X-ray binary V404 Cyg obtained during its summer 2015 outburst, primarily focusing on observations during the height of this outburst activity. The NuSTAR data show extreme variability in both the flux and spectral properties of the source. This is partly driven by strong and variable line-of-sight absorption, similar to previous outbursts. The latter stages of this observation are dominated by strong flares, reaching luminosities close to Eddington. During these flares, the central source appears to be relatively unobscured and the data show clear evidence for a strong contribution from relativistic reflection, providing a means to probe the geometry of the innermost accretion flow. Based on the flare properties, analogies with other Galactic black hole binaries, and also the simultaneous onset of radio activity, we argue that this intense X-ray flaring is related to transient jet activity during which the ejected plasma is the primary source of illumination for the accretion disk. If this is the case, then our reflection modeling implies that these jets are launched in close proximity to the black hole (as close as a few gravitational radii), consistent with expectations for jet launching models that tap either the spin of the central black hole, or the very innermost accretion disk. Our analysis also allows us to place the first constraints on the black hole spin for this source, which we find to be a* > 0.92 (99% statistical uncertainty, based on an idealized lamp-post geometry).", "date": "2017-04-20", "date_type": "published", "publication": "Astrophysical Journal", "volume": "839", "number": "2", "publisher": "American Astronomical Society", "pagerange": "Art. No. 110", "id_number": "CaltechAUTHORS:20161117-111407065", "issn": "1538-4357", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20161117-111407065", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "Science and Technology Facilities Council (STFC)", "grant_number": "ST/J003697/2" }, { "agency": "Hintze Foundation" }, { "agency": "NASA Einstein Fellowship", "grant_number": "PF4-150125" }, { "agency": "NASA", "grant_number": "NAS8-03060" }, { "agency": "European Research Council (ERC)", "grant_number": "340442" }, { "agency": "Agenzia Spaziale Italiana (ASI)", "grant_number": "I/037/12/0-011/13" }, { "agency": "NASA/JPL/Caltech" } ] }, "local_group": { "items": [ { "id": "NuSTAR" }, { "id": "Space-Radiation-Laboratory" }, { "id": "Astronomy-Department" } ] }, "doi": "10.3847/1538-4357/aa67e8", "primary_object": { "basename": "1609.01293v1.pdf", "url": "https://authors.library.caltech.edu/records/rcvsm-5xr29/files/1609.01293v1.pdf" }, "related_objects": [ { "basename": "Walton_2017_ApJ_839_110.pdf", "url": "https://authors.library.caltech.edu/records/rcvsm-5xr29/files/Walton_2017_ApJ_839_110.pdf" } ], "resource_type": "article", "pub_year": "2017", "author_list": "Walton, D. J.; Mooley, K.; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/2xwt4-yge83", "eprint_id": 75859, "eprint_status": "archive", "datestamp": "2023-08-19 02:17:26", "lastmod": "2023-10-25 15:21:58", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Fornasini-F-M", "name": { "family": "Fornasini", "given": "Francesca M." } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Grefenstette-B-W", "name": { "family": "Grefenstette", "given": "Brian W." }, "orcid": "0000-0002-1984-2932" }, { "id": "Harrison-F-A", "name": { "family": "Harrison", "given": "Fiona A." }, "orcid": "0000-0003-2992-8024" }, { "id": "Madsen-K-K", "name": { "family": "Madsen", "given": "Kristin K." }, "orcid": "0000-0003-1252-4891" }, { "id": "Mao-Peter-H", "name": { "family": "Mao", "given": "Peter H." } }, { "id": "Miyasaka-Hiromasa", "name": { "family": "Miyasaka", "given": "Hiromasa" }, "orcid": "0000-0002-8074-4186" }, { "id": "Rana-V-R", "name": { "family": "Rana", "given": "Vikram" }, "orcid": "0000-0003-1703-8796" } ] }, "title": "The NuSTAR Hard X-Ray Survey of the Norma Arm Region", "ispublished": "pub", "full_text_status": "public", "note": "\u00a9 2017 American Astronomical Society. \n\nReceived 2016 October 12. Accepted 2017 February 19. Published 2017 April 6.\n\nWe thank the referee for feedback that helped improve the clarity of the work presented in this paper. This work made use of data from the NuSTAR mission, a project led by the California Institute of Technology, managed by the Jet Propulsion Laboratory, and funded by the National Aeronautics and Space Administration. We thank the NuSTAR operations, software, and calibration teams for support with the execution and analysis of these observations. This research has made use of the NuSTAR Data Analysis Software (NuSTARDAS), jointly developed by the ASI Science Data Center (ASDC, Italy) and the California Institute of Technology (USA). We also made use of observations taken by the Chandra X-ray Observatory and of software provided by the Chandra X-ray Center (CXC) in the application packages CIAO and Sherpa. This work also made use of data products from observations made with ESO telescopes at the La Silla or Paranal Observatories under ESO program ID 179.B-2002. In addition, F.M.F. acknowledges support from the National Science Foundation Graduate Research Fellowship and thanks G. K. Keating for helpful conversations on some of the statistical measures and figures in the paper. JAT acknowledges support from Chandra grants GO4-15138X and GO5-16152X. FEB acknowledges support from CONICYT-Chile grants Basal-CATA PFB-06/2007, FONDECYT Regular 1141218, \"EMBIGGEN\" Anillo ACT1101, and the Ministry of Economy, Development, and Tourism's Millennium Science Initiative through grant IC120009, awarded to the Millennium Institute of Astrophysics (MAS). JCS acknowledges support from FONDECYT 3140310. RK acknowledges support from the Russian Science Foundation (grant 14-12-01315). DB thanks the French Space Agency (CNES) for financial support.\n\nPublished - Fornasini_2017_ApJS_229_33.pdf
Submitted - 1703.00021.pdf
", "abstract": "We present a catalog of hard X-ray sources in a square-degree region surveyed by the Nuclear Spectroscopic Telescope Array (NuSTAR) in the direction of the Norma spiral arm. This survey has a total exposure time of 1.7 Ms, and the typical and maximum exposure depths are 50 ks and 1 Ms, respectively. In the area of deepest coverage, sensitivity limits of 5 \u00d7 10^(\u221214) and 4 \u00d7 10^(\u221214) erg s^(\u22121) cm^(\u22122) in the 3\u201310 and 10\u201320 keV bands, respectively, are reached. Twenty-eight sources are firmly detected, and 10 are detected with low significance; 8 of the 38 sources are expected to be active galactic nuclei. The three brightest sources were previously identified as a low-mass X-ray binary, high-mass X-ray binary, and pulsar wind nebula. Based on their X-ray properties and multiwavelength counterparts, we identify the likely nature of the other sources as two colliding wind binaries, three pulsar wind nebulae, a black hole binary, and a plurality of cataclysmic variables (CVs). The CV candidates in the Norma region have plasma temperatures of \u224810\u201320 keV, consistent with the Galactic ridge X-ray emission spectrum but lower than the temperatures of CVs near the Galactic center. This temperature difference may indicate that the Norma region has a lower fraction of intermediate polars relative to other types of CVs compared to the Galactic center. The NuSTAR logN\u2013logS distribution in the 10\u201320 keV band is consistent with the distribution measured by Chandra at 2\u201310 keV if the average source spectrum is assumed to be a thermal model with kT \u2248 15 keV, as observed for the CV candidates.", "date": "2017-04", "date_type": "published", "publication": "Astrophysical Journal Supplement Series", "volume": "229", "number": "2", "publisher": "American Astronomical Society", "pagerange": "Art. No. 33", "id_number": "CaltechAUTHORS:20170407-140117671", "issn": "0067-0049", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20170407-140117671", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA/Caltech/JPL" }, { "agency": "NSF" }, { "agency": "NASA", "grant_number": "GO4-15138X" }, { "agency": "NASA", "grant_number": "GO5-16152X" }, { "agency": "Fondo Nacional de Desarrollo Cient\u00edfico y Tecnol\u00f3gico (FONDECYT)", "grant_number": "1141218" }, { "agency": "Comisi\u00f3n Nacional de Investigaci\u00f3n Cient\u00edfica y Tecnol\u00f3gica (CONICYT)", "grant_number": "ACT1101" }, { "agency": "Iniciativa Cient\u00edfica Milenio del Ministerio de Econom\u00eda, Fomento y Turismo", "grant_number": "IC120009" }, { "agency": "Millennium Institute of Astrophysics (MAS)" }, { "agency": "Fondo Nacional de Desarrollo Cient\u00edfico y Tecnol\u00f3gico (FONDECYT)", "grant_number": "3140310" }, { "agency": "Russian Science Foundation", "grant_number": "14-12-01315" }, { "agency": "Centre National d'\u00c9tudes Spatiales (CNES)" } ] }, "local_group": { "items": [ { "id": "NuSTAR" }, { "id": "Astronomy-Department" } ] }, "doi": "10.3847/1538-4365/aa61fc", "primary_object": { "basename": "1703.00021.pdf", "url": "https://authors.library.caltech.edu/records/2xwt4-yge83/files/1703.00021.pdf" }, "related_objects": [ { "basename": "Fornasini_2017_ApJS_229_33.pdf", "url": "https://authors.library.caltech.edu/records/2xwt4-yge83/files/Fornasini_2017_ApJS_229_33.pdf" } ], "resource_type": "article", "pub_year": "2017", "author_list": "Fornasini, Francesca M.; Forster, Karl; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/harj1-hyn54", "eprint_id": 74293, "eprint_status": "archive", "datestamp": "2023-08-19 01:29:18", "lastmod": "2023-10-24 22:17:21", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Lansbury-G-B", "name": { "family": "Lansbury", "given": "G. B." }, "orcid": "0000-0002-5328-9827" }, { "id": "Harrison-F-A", "name": { "family": "Harrison", "given": "F. A." }, "orcid": "0000-0003-2992-8024" }, { "id": "Balokovi\u0107-M", "name": { "family": "Balokovi\u0107", "given": "M." }, "orcid": "0000-0003-0476-6647" }, { "id": "Brightman-M", "name": { "family": "Brightman", "given": "M." }, "orcid": "0000-0002-8147-2602" }, { "id": "Forster-K", "name": { "family": "Forster", "given": "K." }, "orcid": "0000-0001-5800-5531" }, { "id": "Grefenstette-B-W", "name": { "family": "Grefenstette", "given": "B. W." }, "orcid": "0000-0002-1984-2932" }, { "id": "Jiang-B", "name": { "family": "Jiang", "given": "B." } }, { "id": "Walton-D-J", "name": { "family": "Walton", "given": "D. J." }, "orcid": "0000-0001-5819-3552" } ] }, "title": "The NuSTAR Serendipitous Survey: The 40-month Catalog and the Properties of the Distant High-energy X-Ray Source Population", "ispublished": "pub", "full_text_status": "public", "keywords": "catalogs \u2013 galaxies: active \u2013 galaxies: nuclei \u2013 quasars: general \u2013 surveys \u2013 X-rays: general", "note": "\u00a9 2017 The American Astronomical Society. \n\nReceived 2016 September 2; revised 2016 November 18; accepted 2016 December 7; published 2017 February 10. \n\nThe authors first thank the anonymous referee for the constructive comments. We acknowledge financial support from the Science and Technology Facilities Council (STFC) grants ST/K501979/1 (G.B.L.), ST/I001573/1 (D.M.A.), and ST/J003697/2 (P.G.); a Herchel Smith Postdoctoral Fellowship of the University of Cambridge (G.B.L.); the ERC Advanced Grant FEEDBACK 340442 at the University of Cambridge (J.A.); a COFUND Junior Research Fellowship from the Institute of Advanced Study, Durham University (J.A.); the Leverhulme Trust (D.M.A.); CONICYT-Chile grants FONDECYT 1120061 and 1160999 (E.T.), 3140534 (S.S.), and Anillo ACT1101 (E.T. and F.E.B.); the Center of Excellence in Astrophysics and Associated Technologies (PFB 06; E.T. and F.E.B.); and the NASA Earth and Space Science Fellowship Program, grant NNX14AQ07H (M.B.). We extend gratitude to Felipe Ardila, Roberto Assef, Eduardo Ba\u00f1ados, Stanislav George Djorgovski, Andrew Drake, Jack Gabel, Audrey Galametz, Daniel Gawerc, David Girou, Marianne Heida, Nikita Kamraj, Peter Kosec, Thomas Kr\u00fchler, Ashish Mahabal, Alessandro Rettura, and Aaron Stemo for their support during the ground-based follow-up observations. We thank John Lucey for unearthing the J1410 spectrum, and Sophie Reed, David Rosario, Mara Salvato, and Martin Ward for the informative discussions. Additional thanks to Eden Stern for lending a hand during the 2015 August Keck run. This work was supported under NASA Contract No. NNG08FD60C and made use of data from the NuSTAR mission, a project led by the California Institute of Technology, managed by the Jet Propulsion Laboratory, and funded by the National Aeronautics and Space Administration. We thank the NuSTAR Operations, Software and Calibration teams for support with the execution and analysis of these observations. This research has made use of the NuSTAR Data Analysis Software (NuSTARDAS) jointly developed by the ASI Science Data Center (ASDC, Italy) and the California Institute of Technology (USA). \n\nFacilities: Chandra, ESO La Silla, Gemini, Keck, Magellan, NuSTAR, Palomar, SDSS, Swift, WISE, XMM-Newton.\n\nPublished - Lansbury_2017_ApJ_836_99.pdf
Submitted - 1612.06389.pdf
", "abstract": "We present the first full catalog and science results for the Nuclear Spectroscopic Telescope Array (NuSTAR) serendipitous survey. The catalog incorporates data taken during the first 40 months of NuSTAR operation, which provide \u224820 Ms of effective exposure time over 331 fields, with an areal coverage of 13 deg^2, and 497 sources detected in total over the 3\u201324 keV energy range. There are 276 sources with spectroscopic redshifts and classifications, largely resulting from our extensive campaign of ground-based spectroscopic follow-up. We characterize the overall sample in terms of the X-ray, optical, and infrared source properties. The sample is primarily composed of active galactic nuclei (AGNs), detected over a large range in redshift from z = 0.002 to 3.4 (median of \u3008z\u3009= 0.56), but also includes 16 spectroscopically confirmed Galactic sources. There is a large range in X-ray flux, from log(f_(3-24 keV)/erg s^(-1) cm^(-2) \u2248 -14 to \u221211, and in rest-frame 10\u201340 keV luminosity, from log(L_(10-40 keV)/erg s^(-1) \u2248 39 to 46, with a median of 44.1. Approximately 79% of the NuSTAR sources have lower-energy (<10 keV) X-ray counterparts from XMM-Newton, Chandra, and Swift XRT. The mid-infrared (MIR) analysis, using WISE all-sky survey data, shows that MIR AGN color selections miss a large fraction of the NuSTAR-selected AGN population, from \u224815% at the highest luminosities (L_X > 10^(44) erg s^(\u22121)) to \u224880% at the lowest luminosities (L_X > 10^(43) erg s^(\u22121)). Our optical spectroscopic analysis finds that the observed fraction of optically obscured AGNs (i.e., the type 2 fraction) is F_(Type 2) = 53^(+14)_(-15)%, for a well-defined subset of the 8\u201324 keV selected sample. This is higher, albeit at a low significance level, than the type 2 fraction measured for redshift- and luminosity-matched AGNs selected by <10 keV X-ray missions.", "date": "2017-02-10", "date_type": "published", "publication": "Astrophysical Journal", "volume": "836", "number": "1", "publisher": "American Astronomical Society", "pagerange": "Art. No. 99", "id_number": "CaltechAUTHORS:20170214-093358892", "issn": "0004-637X", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20170214-093358892", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "Science and Technology Facilities Council (STFC)", "grant_number": "ST/K501979/1" }, { "agency": "Science and Technology Facilities Council (STFC)", "grant_number": "ST/I001573/1" }, { "agency": "Science and Technology Facilities Council (STFC)", "grant_number": "ST/J003697/2" }, { "agency": "University of Cambridge" }, { "agency": "European Research Council (ERC)", "grant_number": "340442" }, { "agency": "Durham University" }, { "agency": "Leverhulme Trust" }, { "agency": "Fondo Nacional de Desarrollo Cient\u00edfico y Tecnol\u00f3gico (FONDECYT)", "grant_number": "1120061" }, { "agency": "Fondo Nacional de Desarrollo Cient\u00edfico y Tecnol\u00f3gico (FONDECYT)", "grant_number": "1160999" }, { "agency": "Fondo Nacional de Desarrollo Cient\u00edfico y Tecnol\u00f3gico (FONDECYT)", "grant_number": "3140534" }, { "agency": "Comisi\u00f3n Nacional de Investigaci\u00f3n Cient\u00edfica y Tecnol\u00f3gica (CONICYT)", "grant_number": "Anillo ACT1101" }, { "agency": "Center of Excellence in Astrophysics and Associated Technologies", "grant_number": "PFB 06" }, { "agency": "NASA Earth and Space Science Fellowship", "grant_number": "NNX14AQ07H" }, { "agency": "NASA", "grant_number": "NNG08FD60C" }, { "agency": "NASA/JPL/Caltech" } ] }, "collection": "CaltechAUTHORS", "local_group": { "items": [ { "id": "NuSTAR", "value": "NuSTAR" }, { "id": "Astronomy-Department", "value": "Astronomy Department" } ] }, "doi": "10.3847/1538-4357/836/1/99", "primary_object": { "basename": "1612.06389.pdf", "url": "https://authors.library.caltech.edu/records/harj1-hyn54/files/1612.06389.pdf" }, "related_objects": [ { "basename": "Lansbury_2017_ApJ_836_99.pdf", "url": "https://authors.library.caltech.edu/records/harj1-hyn54/files/Lansbury_2017_ApJ_836_99.pdf" } ], "resource_type": "article", "pub_year": "2017", "author_list": "Lansbury, G. B.; Harrison, F. A.; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/bnqx7-zrw84", "eprint_id": 73210, "eprint_status": "archive", "datestamp": "2023-08-22 19:29:00", "lastmod": "2023-10-24 15:07:50", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Grefenstette-B-W", "name": { "family": "Grefenstette", "given": "Brian W." }, "orcid": "0000-0002-1984-2932" }, { "id": "Fryer-C-L", "name": { "family": "Fryer", "given": "Chris L." }, "orcid": "0000-0003-2624-0056" }, { "id": "Harrison-F-A", "name": { "family": "Harrison", "given": "Fiona A." }, "orcid": "0000-0003-2992-8024" }, { "id": "Boggs-S-E", "name": { "family": "Boggs", "given": "Steven E." }, "orcid": "0000-0001-9567-4224" }, { "id": "Delaney-T", "name": { "family": "Delaney", "given": "Tracey" } }, { "id": "Laming-J-M", "name": { "family": "Laming", "given": "J. Martin" }, "orcid": "0000-0002-3362-7040" }, { "id": "Reynolds-S-P", "name": { "family": "Reynolds", "given": "Stephen P." } }, { "id": "Alexander-D-M", "name": { "family": "Alexander", "given": "David M." }, "orcid": "0000-0002-5896-6313" }, { "id": "Barret-D", "name": { "family": "Barret", "given": "Didier" }, "orcid": "0000-0002-0393-9190" }, { "id": "Christensen-F-E", "name": { "family": "Christensen", "given": "Finn E." }, "orcid": "0000-0001-5679-1946" }, { "id": "Craig-W-W", "name": { "family": "Craig", "given": "William W." } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Giommi-P", "name": { "family": "Giommi", "given": "Paolo" } }, { "id": "Hailey-C-J", "name": { "family": "Hailey", "given": "Charles J." } }, { "id": "Hornstrup-A", "name": { "family": "Hornstrup", "given": "Alan" } }, { "id": "Kitaguchi-Takao", "name": { "family": "Kitaguchi", "given": "Takao" } }, { "id": "Koglin-J-E", "name": { "family": "Koglin", "given": "J. E." } }, { "id": "Lopez-L-A", "name": { "family": "Lopez", "given": "Laura" }, "orcid": "0000-0002-1790-3148" }, { "id": "Mao-Peter-H", "name": { "family": "Mao", "given": "Peter H." } }, { "id": "Madsen-K-K", "name": { "family": "Madsen", "given": "Kristin K." }, "orcid": "0000-0003-1252-4891" }, { "id": "Miyasaka-Hiromasa", "name": { "family": "Miyasaka", "given": "Hiromasa" }, "orcid": "0000-0002-8074-4186" }, { "id": "Mori-Kaya", "name": { "family": "Mori", "given": "Kaya" }, "orcid": "0000-0002-9709-5389" }, { "id": "Perri-M", "name": { "family": "Perri", "given": "Matteo" } }, { "id": "Pivovaroff-M-J", "name": { "family": "Pivovaroff", "given": "Michael J." } }, { "id": "Puccetti-S", "name": { "family": "Puccetti", "given": "Simonetta" }, "orcid": "0000-0002-2734-7835" }, { "id": "Rana-V-R", "name": { "family": "Rana", "given": "Vikram" }, "orcid": "0000-0003-1703-8796" }, { "id": "Stern-D", "name": { "family": "Stern", "given": "Daniel" }, "orcid": "0000-0003-2686-9241" }, { "id": "Westergaard-N-J", "name": { "family": "Westergaard", "given": "Niels J." } }, { "id": "Wik-D-R", "name": { "family": "Wik", "given": "Daniel R." }, "orcid": "0000-0001-8952-676X" }, { "id": "Zhang-W-W", "name": { "family": "Zhang", "given": "William W." }, "orcid": "0000-0002-1426-9698" }, { "id": "Zoglauer-A-C", "name": { "family": "Zoglauer", "given": "Andreas" } } ] }, "title": "The distribution of radioactive ^(44)Ti in Cassiopeia A", "ispublished": "pub", "full_text_status": "public", "keywords": "gamma rays: general; ISM: supernova remnants; nuclear reactions, nucleosynthesis, abundances; X-rays: individual (Cassiopeia A)", "note": "\u00a9 2016. The American Astronomical Society. \n\nReceived 2016 August 30; revised 2016 October 17; accepted 2016 October 29; published 2016 December 27. \n\nWe would like thank Dan Milisavljevic for providing the [S iii] data files, as well as Thomas Janka, Raph Hix, and Adam Burrows for their helpful comments. This work was supported under NASA contract NNG08FD60C and made use of data from the NuSTAR mission, a project led by the California Institute of Technology, managed by the Jet Propulsion Laboratory, and funded by NASA. J.M.L. was supported by the NASA ADAP grant NNH16AC24I.\n\nWe thank the NuSTAR Operations, Software, and Calibration teams for support with the execution and analysis of these observations. This research made use of the NuSTAR Data Analysis Software (NuSTARDAS), jointly developed by the ASI Science Data Center (ASDC, Italy) and the California Institute of Technology (USA). This research also made extensive use of the IDL Astronomy Library (http://idlastro.gsfc.nasa.gov/). Additional figures were produced using the Veusz plotting package (\u00a9 2003\u20132016 Jeremy Sanders). 3D figures and movies were produced via the Anaconda Software Distribution (https://www.continuum.io) of python and mayavi2 (Ramachandran & Varoquaux 2011).\n\nFacilities: NuSTAR, Chandra, Spitzer.\n\nPublished - Grefenstette_2017_ApJ_834_19.pdf
", "abstract": "The distribution of elements produced in the innermost layers of a supernova explosion is a key diagnostic for studying the collapse of massive stars. Here we present the results of a 2.4 Ms NuSTAR observing campaign aimed at studying the supernova remnant Cassiopeia A (Cas A). We perform spatially resolved spectroscopic analyses of the ^(44)Ti ejecta, which we use to determine the Doppler shift and thus the three-dimensional (3D) velocities of the ^(44)Ti ejecta. We find an initial ^(44)Ti mass of (1.54 \u00b1 0.21) \u00d7 10^(\u22124) M_\u2299, which has a present-day average momentum direction of 340\u00b0 \u00b1 15\u00b0 projected onto the plane of the sky (measured clockwise from celestial north) and is tilted by 58\u00b0 \u00b1 20\u00b0 into the plane of the sky away from the observer, roughly opposite to the inferred direction of motion of the central compact object. We find some ^(44)Ti ejecta that are clearly interior to the reverse shock and some that are clearly exterior to it. Where we observe ^(44)Ti ejecta exterior to the reverse shock we also see shock-heated iron; however, there are regions where we see iron but do not observe ^(44)Ti. This suggests that the local conditions of the supernova shock during explosive nucleosynthesis varied enough to suppress the production of ^(44)Ti by at least a factor of two in some regions, even in regions that are assumed to be the result of processes like \u03b1-rich freezeout that should produce both iron and titanium.", "date": "2017-01-01", "date_type": "published", "publication": "Astrophysical Journal", "volume": "834", "number": "1", "publisher": "American Astronomical Society", "pagerange": "Art. No. 19", "id_number": "CaltechAUTHORS:20170104-115334892", "issn": "0004-637X", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20170104-115334892", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA", "grant_number": "NNG08FD60C" }, { "agency": "NASA/JPL/Caltech" }, { "agency": "NASA", "grant_number": "NNH16AC24I" } ] }, "local_group": { "items": [ { "id": "NuSTAR" }, { "id": "Space-Radiation-Laboratory" }, { "id": "Infrared-Processing-and-Analysis-Center-(IPAC)" }, { "id": "Astronomy-Department" } ] }, "doi": "10.3847/1538-4357/834/1/19", "primary_object": { "basename": "Grefenstette_2017_ApJ_834_19.pdf", "url": "https://authors.library.caltech.edu/records/bnqx7-zrw84/files/Grefenstette_2017_ApJ_834_19.pdf" }, "resource_type": "article", "pub_year": "2017", "author_list": "Grefenstette, Brian W.; Fryer, Chris L.; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/7b6g3-xtd65", "eprint_id": 74002, "eprint_status": "archive", "datestamp": "2023-08-19 00:49:13", "lastmod": "2023-10-24 21:59:36", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Madsen-K-K", "name": { "family": "Madsen", "given": "Kristin K." }, "orcid": "0000-0003-1252-4891" }, { "id": "Beardmore-A-P", "name": { "family": "Beardmore", "given": "Andrew P." } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Guainazzi-M", "name": { "family": "Guainazzi", "given": "Matteo" } }, { "id": "Marshall-H-L", "name": { "family": "Marshall", "given": "Herman L." } }, { "id": "Miller-E-D", "name": { "family": "Miller", "given": "Eric D." } }, { "id": "Page-K-L", "name": { "family": "Page", "given": "Kim L." }, "orcid": "0000-0001-5624-2613" }, { "id": "Stuhlinger-M", "name": { "family": "Stuhlinger", "given": "Martin" } } ] }, "title": "IACHEC Cross-Calibration of Chandra, NuSTAR, Swift, Suzaku, and XMM-Newton with 3C 273 and PKS 2155-304", "ispublished": "pub", "full_text_status": "public", "keywords": "space vehicles: instruments", "note": "\u00a9 2016 American Astronomical Society. \n\nReceived 2016 August 1. Accepted 2016 September 27. Published 2016 December 14. \n\nK.K.M. was supported under NASA Contract No. NNG08FD60C, and made use of data from the NuSTAR mission, a project led by the California Institute of Technology, managed by the Jet Propulsion Laboratory, and funded by the National Aeronautics and Space Administration. \n\nH.L.M. was supported by the National Aeronautics and Space Administration (NASA) through the Smithsonian Astrophysical Observatory (SAO) contract SV3-73016 to MIT for support of the Chandra X-Ray Center (CXC), which is operated by SAO for and on behalf of NASA under contract NAS8-03060. \n\nA.P.B. and K.L.P. acknowledge support from the UK Space Agency. \n\nE.D.M. acknowledges funding from NASA grant NNX09AE58G to MIT to support the Suzaku XIS. \n\nWe thank the IACHEC for organizing the campaigns and providing the forum for development and discussion of the cross-calibration results that have led to this paper, and thank the referee for comments and suggestions. \n\nFacilities: Chandra - , NuSTAR - The NuSTAR (Nuclear Spectroscopic Telescope Array) mission, Swift - Swift Gamma-Ray Burst Mission, Suzaku - Suzaku (ASTRO-EII), and XMM-Newton. - Newton X-Ray Multimirror Mission satellite\n\nPublished - Madsen_2017_AJ_153_2.pdf
Submitted - 1609.09032v1.pdf
", "abstract": "On behalf of the International Astronomical Consortium for High Energy Calibration, we present results from the cross-calibration campaigns in 2012 on 3C 273 and in 2013 on PKS 2155-304 between the then active X-ray observatories Chandra, NuSTAR, Suzaku, Swift, and XMM-Newton. We compare measured fluxes between instrument pairs in two energy bands, 1\u20135 keV and 3\u20137 keV, and calculate an average cross-normalization constant for each energy range. We review known cross-calibration features and provide a series of tables and figures to be used for evaluating cross-normalization constants obtained from other observations with the above mentioned observatories.", "date": "2017-01", "date_type": "published", "publication": "Astronomical Journal", "volume": "153", "number": "1", "publisher": "American Astronomical Society", "pagerange": "Art. No. 2", "id_number": "CaltechAUTHORS:20170203-081053097", "issn": "1538-3881", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20170203-081053097", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA", "grant_number": "NNG08FD60C" }, { "agency": "NASA/JPL/Caltech" }, { "agency": "Smithsonian Astrophysical Observatory", "grant_number": "SV3-73016" }, { "agency": "NASA", "grant_number": "NAS8-03060" }, { "agency": "United Kingdom Space Agency (UKSA)" }, { "agency": "NASA", "grant_number": "NNX09AE58G" } ] }, "collection": "CaltechAUTHORS", "local_group": { "items": [ { "id": "Space-Radiation-Laboratory", "value": "Space Radiation Laboratory" }, { "id": "NuSTAR", "value": "NuSTAR" } ] }, "doi": "10.3847/1538-3881/153/1/2", "primary_object": { "basename": "1609.09032v1.pdf", "url": "https://authors.library.caltech.edu/records/7b6g3-xtd65/files/1609.09032v1.pdf" }, "related_objects": [ { "basename": "Madsen_2017_AJ_153_2.pdf", "url": "https://authors.library.caltech.edu/records/7b6g3-xtd65/files/Madsen_2017_AJ_153_2.pdf" } ], "resource_type": "article", "pub_year": "2017", "author_list": "Madsen, Kristin K.; Beardmore, Andrew P.; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/nhvkq-85x53", "eprint_id": 72968, "eprint_status": "archive", "datestamp": "2023-08-22 19:19:18", "lastmod": "2023-10-23 23:27:41", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Hung-T-K", "name": { "family": "Hung", "given": "T." } }, { "id": "Gezari-S", "name": { "family": "Gezari", "given": "S." }, "orcid": "0000-0003-3703-5154" }, { "id": "Jones-D-O", "name": { "family": "Jones", "given": "D. O." }, "orcid": "0000-0002-6230-0151" }, { "id": "Kirshner-R-P", "name": { "family": "Kirshner", "given": "R. P." }, "orcid": "0000-0002-1966-3942" }, { "id": "Chornock-R", "name": { "family": "Chornock", "given": "R." }, "orcid": "0000-0002-7706-5668" }, { "id": "Berger-Edo", "name": { "family": "Berger", "given": "E." }, "orcid": "0000-0002-9392-9681" }, { "id": "Rest-A", "name": { "family": "Rest", "given": "A." } }, { "id": "Huber-M-E", "name": { "family": "Huber", "given": "M." } }, { "id": "Narayan-G", "name": { "family": "Narayan", "given": "G." }, "orcid": "0000-0001-6022-0484" }, { "id": "Scolnic-D", "name": { "family": "Scolnic", "given": "D." }, "orcid": "0000-0002-4934-5849" }, { "id": "Waters-C", "name": { "family": "Waters", "given": "C." }, "orcid": "0000-0003-1989-4879" }, { "id": "Wainscoat-R-J", "name": { "family": "Wainscoat", "given": "R." }, "orcid": "0000-0002-1341-0952" }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. C." }, "orcid": "0000-0002-8650-1644" }, { "id": "Forster-K", "name": { "family": "Forster", "given": "K." }, "orcid": "0000-0001-5800-5531" }, { "id": "Neill-J-D", "name": { "family": "Neill", "given": "J. D." }, "orcid": "0000-0002-0466-1119" } ] }, "title": "The GALEX Time Domain Survey. II. Wavelength-Dependent Variability of Active Galactic Nuclei in the Pan-STARRS1 Medium Deep Survey", "ispublished": "pub", "full_text_status": "public", "keywords": "accretion, accretion disks; black hole physics; galaxies: nuclei; surveys; ultraviolet: general", "note": "\u00a9 2016 American Astronomical Society. \n\nReceived 2016 June 27. Accepted 2016 September 20. Published 2016 December 19. \n\nWe thank the anonymous referee for valuable comments and suggestions that helped to improve this paper. S.G. was supported in part by NSF CAREER grant 1454816. Some of the observations reported here were obtained at the MMT Observatory, a joint facility of the Smithsonian Institution and the University of Arizona. We thank R. Foley for his contribution to the PS1 transients program. The Pan-STARRS1 Surveys (PS1) have been made possible through contributions of the Institute for Astronomy, the University of Hawaii, the Pan-STARRS Project Office, the Max-Planck Society and its participating institutes, the Max Planck Institute for Astronomy, Heidelberg and the Max Planck Institute for Extraterrestrial Physics, Garching, The Johns Hopkins University, Durham University, the University of Edinburgh, Queen's University Belfast, the Harvard-Smithsonian Center for Astrophysics, the Las Cumbres Observatory Global Telescope Network Incorporated, the National Central University of Taiwan, the Space Telescope Science Institute, the National Aeronautics and Space Administration under Grant No. NNX08AR22G issued through the Planetary Science Division of the NASA Science Mission Directorate, the National Science Foundation under Grant No. AST-1238877, and the University of Maryland.\n\nPublished - Hung_2016_ApJ_833_226.pdf
Submitted - 1609.06307v1.pdf
", "abstract": "We analyze the wavelength-dependent variability of a sample of spectroscopically confirmed active galactic nuclei selected from near-UV (NUV) variable sources in the GALEX Time Domain Survey that have a large amplitude of optical variability (difference-flux S/N > 3) in the Pan-STARRS1 Medium Deep Survey (PS1 MDS). By matching GALEX and PS1 epochs in five bands (NUV, g_(P1), r_(P1), i_(P1), z_(P1)) in time, and taking their flux difference, we create co-temporal difference-flux spectral energy distributions (\u0394\u0192SEDs) using two chosen epochs for each of the 23 objects in our sample, on timescales of about a year. We confirm the \"bluer-when-brighter\" trend reported in previous studies, and measure a median spectral index of the \u0394\u0192SEDs of \u0251_\u22cb = 2.1 that is consistent with an accretion disk spectrum. We further fit the \u0394\u0192SEDs of each source with a standard accretion disk model in which the accretion rate changes from one epoch to the other. In our sample, 17 out of 23 (~74%) sources are described well by this variable accretion-rate disk model, with a median average characteristic disk temperature T^* of 1.2 x 10^5 K that is consistent with the temperatures expected, given the distribution of accretion rates and black hole masses inferred for the sample. Our analysis also shows that the variable accretion rate model is a better fit to the \u0394\u0192SEDs than a simple power law.", "date": "2016-12-20", "date_type": "published", "publication": "Astrophysical Journal", "volume": "833", "number": "2", "publisher": "American Astronomical Society", "pagerange": "Art. No. 226", "id_number": "CaltechAUTHORS:20161220-093154418", "issn": "0004-637X", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20161220-093154418", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NSF", "grant_number": "AST-1454816" }, { "agency": "Institute for Astronomy" }, { "agency": "University of Hawaii" }, { "agency": "Pan-STARRS Project Office" }, { "agency": "Max-Planck Society" }, { "agency": "Max Planck Institute for Astronomy (MPIA)" }, { "agency": "Max Planck Institute for Extraterrestrial Physics" }, { "agency": "Johns Hopkins University" }, { "agency": "Durham University" }, { "agency": "University of Edinburgh" }, { "agency": "Queen's University Belfast" }, { "agency": "Harvard-Smithsonian Center for Astrophysics" }, { "agency": "Las Cumbres Observatory Global Telescope Network Incorporated" }, { "agency": "National Central University of Taiwan" }, { "agency": "NASA", "grant_number": "NNX08AR22G" }, { "agency": "NSF", "grant_number": "AST-1238877" }, { "agency": "University of Maryland" } ] }, "local_group": { "items": [ { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.3847/1538-4357/833/2/226", "primary_object": { "basename": "1609.06307v1.pdf", "url": "https://authors.library.caltech.edu/records/nhvkq-85x53/files/1609.06307v1.pdf" }, "related_objects": [ { "basename": "Hung_2016_ApJ_833_226.pdf", "url": "https://authors.library.caltech.edu/records/nhvkq-85x53/files/Hung_2016_ApJ_833_226.pdf" } ], "resource_type": "article", "pub_year": "2016", "author_list": "Hung, T.; Gezari, S.; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/4bw2v-tnd90", "eprint_id": 71731, "eprint_status": "archive", "datestamp": "2023-08-22 19:04:44", "lastmod": "2023-10-23 17:01:30", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Madejski-G-M", "name": { "family": "Madejski", "given": "G. M." } }, { "id": "Madsen-K-K", "name": { "family": "Madsen", "given": "K. K." }, "orcid": "0000-0003-1252-4891" }, { "id": "Balokovi\u0107-M", "name": { "family": "Balokovi\u0107", "given": "M." }, "orcid": "0000-0003-0476-6647" }, { "id": "Harrison-F-A", "name": { "family": "Harrison", "given": "F. A." }, "orcid": "0000-0003-2992-8024" }, { "id": "Forster-K", "name": { "family": "Forster", "given": "K." }, "orcid": "0000-0001-5800-5531" }, { "id": "Grefenstette-B-W", "name": { "family": "Grefenstette", "given": "B." }, "orcid": "0000-0002-1984-2932" }, { "id": "Mao-Peter-H", "name": { "family": "Mao", "given": "P. H." } }, { "id": "Miyasaka-Hiromasa", "name": { "family": "Miyasaka", "given": "H." }, "orcid": "0000-0002-8074-4186" }, { "id": "Rana-V-R", "name": { "family": "Rana", "given": "V." }, "orcid": "0000-0003-1703-8796" } ] }, "title": "First NuSTAR observations of the BL Lac-type blazar PKS~2155-304: constraints on the jet content and distribution of radiating particles", "ispublished": "pub", "full_text_status": "public", "keywords": "BL Lacertae objects: individual (PKS 2155-304); galaxies: active; galaxies: jets; gamma rays: galaxies; radiation mechanisms: non-thermal", "note": "\u00a9 2016 American Astronomical Society. \n\nReceived 2016 August 2; revised 2016 August 25; accepted 2016 August 29; published 2016 November 3. \n\nThe Fermi-LAT Collaboration acknowledges support for LAT development, operation and data analysis from NASA and DOE (United States), CEA/Irfu and IN2P3/CNRS (France), ASI and INFN (Italy), MEXT, KEK, and JAXA (Japan), and the K.A. Wallenberg Foundation, the Swedish Research Council and the National Space Board (Sweden). Science analysis support in the operations phase from INAF (Italy) and CNES (France) is also gratefully acknowledged. This work was partially supported under the NASA contract No. NNG08FD60C, and made use of observations from the NuSTAR mission, a project led by California Institute of Technology, managed by the Jet Propulsion Laboratory, and funded by NASA. We thank the NuSTAR Operations, Software, and Calibration teams for support in the execution and analysis of these observations. This research has made use of the NuSTAR Data Analysis Software (NuSTARDAS) jointly developed by the ASI Science Data Center (ASDC, Italy) and the California Institute of Technology (USA). K.N. was supported by NASA through Einstein Postdoctoral Fellowship grant number PF3-140130 awarded by the Chandra X-ray Center, and by the Polish National Science Centre grant 2015/18/E/ST9/00580. M.B. acknowledges support from NASA under the NASA Earth and Space Science Fellowship Program, grant NNX14AQ07H.\n\nPublished - Madejski_2016_ApJ_831_142.pdf
Submitted - 1609.02203v1.pdf
", "abstract": "We report the first hard X-ray observations with NuSTAR of the BL Lac-type blazar PKS 2155-304, augmented with soft X-ray data from XMM-Newton and \u03b3-ray data from the Fermi Large Area Telescope, obtained in 2013 April when the source was in a very low flux state. A joint NuSTAR and XMM spectrum, covering the energy range 0.5\u201360 keV, is best described by a model consisting of a log-parabola component with curvature \u03b2 = 0.3_(-0.1)^(+0.2) and a (local) photon index 3.04 \u00b1 0.15 at photon energy of 2 keV, and a hard power-law tail with photon index 2.2 \u00b1 0.4. The hard X-ray tail can be smoothly joined to the quasi-simultaneous \u03b3-ray spectrum by a synchrotron self-Compton component produced by an electron distribution with index p = 2.2. Assuming that the power-law electron distribution extends down to \u03b3 min = 1 and that there is one proton per electron, an unrealistically high total jet power of L_p ~ 10^(47) erg s^(\u22121) is inferred. This can be reduced by two orders of magnitude either by considering a significant presence of electron\u2013positron pairs with lepton-to-proton ratio n_(e + e-)/n_p ~ 30, or by introducing an additional, low-energy break in the electron energy distribution at the electron Lorentz factor \u03b3_(br1) ~ 100. In either case, the jet composition is expected to be strongly matter-dominated.", "date": "2016-11-10", "date_type": "published", "publication": "Astrophysical Journal", "volume": "831", "number": "2", "publisher": "American Astronomical Society", "pagerange": "Art. No. 142", "id_number": "CaltechAUTHORS:20161104-080424476", "issn": "0004-637X", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20161104-080424476", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA" }, { "agency": "Department of Energy (DOE)" }, { "agency": "Commissariat \u00e0 l'Energie Atomique (CEA)" }, { "agency": "Institut National de Physique Nucl\u00e9aire et de Physique des Particules (IN2P3)" }, { "agency": "Agenzia Spaziale Italiana (ASI)" }, { "agency": "Istituto Nazionale di Fisica Nucleare (INFN)" }, { "agency": "Ministry of Education, Culture, Sports, Science and Technology (MEXT)" }, { "agency": "KEK (Japan)" }, { "agency": "Japan Aerospace Exploration Agency (JAXA)" }, { "agency": "Knut and Alice Wallenberg Foundation" }, { "agency": "Swedish Research Council" }, { "agency": "Istituto Nazionale di Astrofisica (INAF)" }, { "agency": "Centre National d'\u00c9tudes Spatiales (CNES)" }, { "agency": "NASA", "grant_number": "NNG08FD60C" }, { "agency": "NASA/JPL/Caltech" }, { "agency": "NASA Einstein Fellowship", "grant_number": "PF3-140130" }, { "agency": "National Science Centre (Poland)", "grant_number": "2015/18/E/ST9/00580" }, { "agency": "NASA Earth and Space Science Fellowship", "grant_number": "NNX14AQ07H" }, { "agency": "Centre National de la Recherche Scientifique (CNRS)" }, { "agency": "Institut de recherche sur les lois fondamentales de l'Univers (Irfu)" }, { "agency": "Swedish National Space Board (SNSB)" } ] }, "local_group": { "items": [ { "id": "NuSTAR" }, { "id": "Space-Radiation-Laboratory" } ] }, "doi": "10.3847/0004-637X/831/2/142", "primary_object": { "basename": "1609.02203v1.pdf", "url": "https://authors.library.caltech.edu/records/4bw2v-tnd90/files/1609.02203v1.pdf" }, "related_objects": [ { "basename": "Madejski_2016_ApJ_831_142.pdf", "url": "https://authors.library.caltech.edu/records/4bw2v-tnd90/files/Madejski_2016_ApJ_831_142.pdf" } ], "resource_type": "article", "pub_year": "2016", "author_list": "Madejski, G. M.; Madsen, K. K.; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/tcd8h-g8h22", "eprint_id": 64061, "eprint_status": "archive", "datestamp": "2023-08-19 00:00:19", "lastmod": "2023-10-17 19:18:16", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Harrison-F-A", "name": { "family": "Harrison", "given": "F. A." }, "orcid": "0000-0003-2992-8024" }, { "id": "Balokovi\u0107-M", "name": { "family": "Balokovi\u0107", "given": "M." }, "orcid": "0000-0003-0476-6647" }, { "id": "Brightman-M", "name": { "family": "Brightman", "given": "M." }, "orcid": "0000-0002-8147-2602" }, { "id": "Forster-K", "name": { "family": "Forster", "given": "K." }, "orcid": "0000-0001-5800-5531" }, { "id": "Grefenstette-B-W", "name": { "family": "Grefenstette", "given": "B. W." }, "orcid": "0000-0002-1984-2932" }, { "id": "Madsen-K-K", "name": { "family": "Madsen", "given": "K. K." }, "orcid": "0000-0003-1252-4891" }, { "id": "Mao-Peter-H", "name": { "family": "Mao", "given": "P. H." } }, { "id": "Miyasaka-Hiromasa", "name": { "family": "Miyasaka", "given": "H." }, "orcid": "0000-0002-8074-4186" }, { "id": "Rana-V-R", "name": { "family": "Rana", "given": "V." }, "orcid": "0000-0003-1703-8796" }, { "id": "Walton-D-J", "name": { "family": "Walton", "given": "D." }, "orcid": "0000-0001-5819-3552" } ] }, "title": "The NuSTAR Extragalactic Surveys: The Number Counts of Active Galactic Nuclei and the Resolved Fraction of the Cosmic X-ray Background", "ispublished": "pub", "full_text_status": "public", "keywords": "galaxies: active \u2013 galaxies: nuclei \u2013 galaxies: Seyfert \u2013 surveys \u2013 X-rays: diffuse background \u2013 X-rays: galaxies", "note": "\u00a9 2016 The American Astronomical Society. \n\nReceived 2015 October 29; revised 2016 August 23; accepted 2016 August 24; published 2016 November 7. \n\nThis work was supported under NASA Contract No. NNG08FD60C, and made use of data from the NuSTAR mission, a project led by the California Institute of Technology, managed by the Jet Propulsion Laboratory, and funded by the National Aeronautics and Space Administration. We thank the NuSTAR Operations, Software and Calibration teams for support with the execution and analysis of these observations. This research has made use of the NuSTAR Data Analysis Software (NuSTARDAS) jointly developed by the ASI Science Data Center (ASDC, Italy) and the California Institute of Technology (USA). J.A. acknowledges support from ERC Advanced Grant FEEDBACK at the University of Cambridge and a COFUND Junior Research Fellowship from the Institute of Advanced Study, Durham University.\n\nPublished - Harrison_2016_ApJ_831_185.pdf
Submitted - 1511.04183v1.pdf
", "abstract": "We present the 3\u20138 keV and 8\u201324 keV number counts of active galactic nuclei (AGNs) identified in the Nuclear Spectroscopic Telescope Array (NuSTAR) extragalactic surveys. NuSTAR has now resolved 33%\u201339% of the X-ray background in the 8\u201324 keV band, directly identifying AGNs with obscuring columns up to ~10^(25) cm^(-2). In the softer 3\u20138 keV band the number counts are in general agreement with those measured by XMM-Newton and Chandra over the flux range 5 x 10^(-15) \u227eS(3\u20138 keV)/erg s^(-1) cm^(-2) \u227e10^(-12) probed by NuSTAR. In the hard 8\u201324 keV band NuSTAR probes fluxes over the range 2 x 10^(-14) \u227e S(8\u201324 keV)/ erg s^(-1) cm^(-2) \u227e 10^_12), a factor ~100 fainter than previous measurements. The 8\u201324 keV number counts match predictions from AGN population synthesis models, directly confirming the existence of a population of obscured and/or hard X-ray sources inferred from the shape of the integrated cosmic X-ray background. The measured NuSTAR counts lie significantly above simple extrapolation with a Euclidian slope to low flux of the Swift/BAT 15\u201355 keV number counts measured at higher fluxes (S(15\u201355 keV) \u227310^(\u221211) erg s^(-1) cm^(-2)), reflecting the evolution of the AGN population between the Swift/BAT local (z < 0.1) sample and NuSTAR's z ~ 1 sample. CXB synthesis models, which account for AGN evolution, lie above the Swift/BAT measurements, suggesting that they do not fully capture the evolution of obscured AGNs at low redshifts.", "date": "2016-11-10", "date_type": "published", "publication": "Astrophysical Journal", "volume": "831", "number": "2", "publisher": "American Astronomical Society", "pagerange": "Art. No. 185", "id_number": "CaltechAUTHORS:20160128-144830164", "issn": "0004-637X", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20160128-144830164", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA", "grant_number": "NNG08FD60C" }, { "agency": "NASA/JPL/Caltech" }, { "agency": "European Research Council (ERC)", "grant_number": "FEEDBACK" }, { "agency": "Durham University" } ] }, "other_numbering_system": { "items": [ { "id": "2015-23", "name": "Space Radiation Laboratory" } ] }, "local_group": { "items": [ { "id": "NuSTAR" }, { "id": "Space-Radiation-Laboratory" } ] }, "doi": "10.3847/0004-637X/831/2/185", "primary_object": { "basename": "Harrison_2016_ApJ_831_185.pdf", "url": "https://authors.library.caltech.edu/records/tcd8h-g8h22/files/Harrison_2016_ApJ_831_185.pdf" }, "related_objects": [ { "basename": "1511.04183v1.pdf", "url": "https://authors.library.caltech.edu/records/tcd8h-g8h22/files/1511.04183v1.pdf" } ], "resource_type": "article", "pub_year": "2016", "author_list": "Harrison, F. A.; Balokovi\u0107, M.; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/b1k9c-gcy38", "eprint_id": 69434, "eprint_status": "archive", "datestamp": "2023-08-20 13:05:33", "lastmod": "2023-10-20 16:55:16", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Guainazzi-M", "name": { "family": "Guainazzi", "given": "M." } }, { "id": "Risaliti-G", "name": { "family": "Risaliti", "given": "G." } }, { "id": "Awaki-H", "name": { "family": "Awaki", "given": "H." } }, { "id": "Ar\u00e9valo-P", "name": { "family": "Ar\u00e9valo", "given": "P." } }, { "id": "Bauer-F-E", "name": { "family": "Bauer", "given": "F. E." }, "orcid": "0000-0002-8686-8737" }, { "id": "Bianchi-S", "name": { "family": "Bianchi", "given": "S." }, "orcid": "0000-0002-4622-4240" }, { "id": "Boggs-S-E", "name": { "family": "Boggs", "given": "S. E." }, "orcid": "0000-0001-9567-4224" }, { "id": "Brandt-W-N", "name": { "family": "Brandt", "given": "W. N." }, "orcid": "0000-0002-0167-2453" }, { "id": "Brightman-M", "name": { "family": "Brightman", "given": "M." }, "orcid": "0000-0002-8147-2602" }, { "id": "Christensen-F-E", "name": { "family": "Christensen", "given": "F. E." }, "orcid": "0000-0001-5679-1946" }, { "id": "Craig-W-W", "name": { "family": "Craig", "given": "W. W." } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "K." }, "orcid": "0000-0001-5800-5531" }, { "id": "Hailey-C-J", "name": { "family": "Hailey", "given": "C. J." } }, { "id": "Harrison-F-A", "name": { "family": "Harrison", "given": "F. A." }, "orcid": "0000-0003-2992-8024" }, { "id": "Koss-M-J", "name": { "family": "Koss", "given": "M." }, "orcid": "0000-0002-7998-9581" }, { "id": "Longinotti-A-L", "name": { "family": "Longinotti", "given": "A." } }, { "id": "Markwardt-C-B", "name": { "family": "Markwardt", "given": "C." }, "orcid": "0000-0001-9803-3879" }, { "id": "Marinucci-A", "name": { "family": "Marinucci", "given": "A." } }, { "id": "Matt-G", "name": { "family": "Matt", "given": "G." }, "orcid": "0000-0002-2152-0916" }, { "id": "Reynolds-C-S", "name": { "family": "Reynolds", "given": "C. S." } }, { "id": "Ricci-C", "name": { "family": "Ricci", "given": "C." }, "orcid": "0000-0001-5231-2645" }, { "id": "Stern-D", "name": { "family": "Stern", "given": "D." }, "orcid": "0000-0003-2686-9241" }, { "id": "Svoboda-J", "name": { "family": "Svoboda", "given": "J." } }, { "id": "Walton-D-J", "name": { "family": "Walton", "given": "D. J." }, "orcid": "0000-0001-5819-3552" }, { "id": "Zhang-W-W", "name": { "family": "Zhang", "given": "W." }, "orcid": "0000-0002-1426-9698" } ] }, "title": "The nature of the torus in the heavily obscured AGN Markarian 3: an X-ray study", "ispublished": "pub", "full_text_status": "public", "note": "\u00a9 2016 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society. \n\nAccepted 2016 April 28. Received 2016 April 28. In original form 2016 March 7. First published online May 10, 2016. \n\nThis work made use of data from the NuSTAR mission, a project led by the California Institute of Technology, managed by the Jet Propulsion Laboratory, and funded by the National Aeronautics and Space Administration. We thank the NuSTAR Operations, Software and Calibration teams for support with the execution and analysis of these observations. This research has made use of the NuSTAR Data Analysis Software (NUSTARDAS) jointly developed by the ASI Science Data Center (ASDC, Italy) and the California Institute of Technology (USA). JS acknowledges support from the grant LH14049 and the Project 14-20970P of the Grant Agency of the Czech Republic. FEB acknowledges support from CONICYT-Chile (Basal-CATA PFB-06/2007, FONDECYT Regular 1141218, 'EMBIGGEN' Anillo ACT1101), and the Ministry of Economy, Development, and Tourism's Millennium Science Initiative through grant IC120009, awarded to The Millennium Institute of Astrophysics, MAS. The authors are grateful to an anonymous referee, whose accurate and detailed report greatly improved the clarity of the paper.\n\nPublished - 2016-39.pdf
", "abstract": "In this paper we report the results of an X-ray monitoring campaign on the heavily obscured Seyfert galaxy Markarian 3 carried out between the fall of 2014 and the spring of 2015 with NuSTAR, Suzaku and XMM-Newton. The hard X-ray spectrum of Markarian 3 is variable on all the time scales probed by our campaign, down to a few days. The observed continuum variability is due to an intrinsically variable primary continuum seen in transmission through a large, but still Compton-thin column density (N_H~0.8-1.1$\\times$10$^{24}$ cm$^{-2}$). If arranged in a spherical-toroidal geometry, the Compton scattering matter has an opening angle ~66 degrees and is seen at a grazing angle through its upper rim (inclination angle ~70 degrees). We report a possible occultation event during the 2014 campaign. If the torus is constituted by a system of clouds sharing the same column density, this event allows us to constrain their number (17$\\pm$5) and individual column density, [~(4.9$\\pm$1.5)$\\times$10$^{22}$ cm$^{-2}$]. The comparison of IR and X-ray spectroscopic results with state-of-the art \"torus\" models suggests that at least two thirds of the X-ray obscuring gas volume might be located within the dust sublimation radius. We report also the discovery of an ionized absorber, characterised by variable resonant absorption lines due to He- and H-like iron. This discovery lends support to the idea that moderate column density absorbers could be due to clouds evaporated at the outer surface of the torus, possibly accelerated by the radiation pressure due to the central AGN emission leaking through the patchy absorber.", "date": "2016-08", "date_type": "published", "publication": "Monthly Notices of the Royal Astronomical Society", "volume": "460", "number": "2", "publisher": "Royal Astronomical Society", "pagerange": "1954-1969", "id_number": "CaltechAUTHORS:20160804-092209395", "issn": "0035-8711", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20160804-092209395", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA/JPL/Caltech" }, { "agency": "Grantov\u00e1 agentura \u010cesk\u00e9 republiky", "grant_number": "LH14049" }, { "agency": "Grantov\u00e1 agentura \u010cesk\u00e9 republiky", "grant_number": "14-20970P" }, { "agency": "Comisi\u00f3n Nacional de Investigaci\u00f3n Cient\u00edfica y Tecnol\u00f3gica (CONICYT)", "grant_number": "Basal-CATA PFB-06/2007" }, { "agency": "Fondo Nacional de Desarrollo Cient\u00edfico y Tecnol\u00f3gico (FONDECYT)", "grant_number": "1141218" }, { "agency": "Fondo Nacional de Desarrollo Cient\u00edfico y Tecnol\u00f3gico (FONDECYT)", "grant_number": "Anillo ACT1101" }, { "agency": "Iniciativa Cient\u00edfica Milenio del Ministerio de Econom\u00eda, Fomento y Turismo", "grant_number": "IC120009" } ] }, "other_numbering_system": { "items": [ { "id": "2016-39", "name": "Space Radiation Laboratory" } ] }, "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" }, { "id": "NuSTAR" } ] }, "doi": "10.1093/mnras/stw1033", "primary_object": { "basename": "2016-39.pdf", "url": "https://authors.library.caltech.edu/records/b1k9c-gcy38/files/2016-39.pdf" }, "resource_type": "article", "pub_year": "2016", "author_list": "Guainazzi, M.; Risaliti, G.; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/6x9kd-00n07", "eprint_id": 69463, "eprint_status": "archive", "datestamp": "2023-08-22 18:19:23", "lastmod": "2023-10-20 19:05:12", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Grefenstette-B-W", "name": { "family": "Grefenstette", "given": "Brian W." }, "orcid": "0000-0002-1984-2932" }, { "id": "Glesener-L", "name": { "family": "Glesener", "given": "Lindsay" }, "orcid": "0000-0001-7092-2703" }, { "id": "Krucker-S", "name": { "family": "Krucker", "given": "S\u00e4m" } }, { "id": "Hudson-H-S", "name": { "family": "Hudson", "given": "Hugh" }, "orcid": "0000-0001-5685-1283" }, { "id": "Hannah-I-G", "name": { "family": "Hannah", "given": "Iain G." }, "orcid": "0000-0003-1193-8603" }, { "id": "Smith-D-M", "name": { "family": "Smith", "given": "David M." }, "orcid": "0000-0002-0542-5759" }, { "id": "Vogel-J-K", "name": { "family": "Vogel", "given": "Julia K." } }, { "id": "White-S-M", "name": { "family": "White", "given": "Stephen M." }, "orcid": "0000-0002-8574-8629" }, { "id": "Madsen-K-K", "name": { "family": "Madsen", "given": "Kristin K." }, "orcid": "0000-0003-1252-4891" }, { "id": "Marsh-A-J", "name": { "family": "Marsh", "given": "Andrew J." }, "orcid": "0000-0003-1086-6900" }, { "id": "Caspi-A", "name": { "family": "Caspi", "given": "Amir" }, "orcid": "0000-0001-8702-8273" }, { "id": "Chen-Bin", "name": { "family": "Chen", "given": "Bin" } }, { "id": "Shih-Albert-Y", "name": { "family": "Shih", "given": "Albert" } }, { "id": "Kuhar-M", "name": { "family": "Kuhar", "given": "Matej" }, "orcid": "0000-0002-7210-180X" }, { "id": "Boggs-S-E", "name": { "family": "Boggs", "given": "Steven E." }, "orcid": "0000-0001-9567-4224" }, { "id": "Christensen-F-E", "name": { "family": "Christensen", "given": "Finn E." }, "orcid": "0000-0001-5679-1946" }, { "id": "Craig-W-W", "name": { "family": "Craig", "given": "William W." } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Hailey-C-J", "name": { "family": "Hailey", "given": "Charles J." } }, { "id": "Harrison-F-A", "name": { "family": "Harrison", "given": "Fiona A." }, "orcid": "0000-0003-2992-8024" }, { "id": "Miyasaka-Hiromasa", "name": { "family": "Miyasaka", "given": "Hiromasa" }, "orcid": "0000-0002-8074-4186" }, { "id": "Stern-D", "name": { "family": "Stern", "given": "Daniel" }, "orcid": "0000-0003-2686-9241" }, { "id": "Zhang-W-W", "name": { "family": "Zhang", "given": "William W." }, "orcid": "0000-0002-1426-9698" } ] }, "title": "The First Focused Hard X-ray Images of the Sun with NuSTAR", "ispublished": "pub", "full_text_status": "public", "keywords": "acceleration of particles; methods: data analysis; Sun: X-rays, gamma rays", "note": "\u00a9 2016. The American Astronomical Society. \n\nReceived 2016 January 27. Accepted 2016 May 20. Published 2016 July 18. \n\nThis work was supported under NASA contract NNG08FD60C and made use of data from the NuSTAR mission, a project led by the California Institute of Technology, managed by the Jet Propulsion Laboratory, and funded by NASA. Additional funding for this work was also provided under NASA grants NNX12AJ36G and NNX14AG07G. S.K. acknowledges funding from the Swiss National Science Foundation (200021-140308). A.J.M.'s participation was supported by NASA Earth and Space Science Fellowship award NNX13AM41H. Part of this work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. A.C. was supported by NASA grants NNX15AK26G and NNX14AN84G. I.G.H. is supported by a Royal Society University Research Fellowship. \n\nWe thank the NuSTAR Operations, Software and Calibration teams for support with the execution and analysis of these observations. This research made use of the NuSTAR Data Analysis Software (NuSTARDAS), jointly developed by the ASI Science Data Center (ASDC, Italy) and the California Institute of Technology (USA). This research made extensive use of the IDL Astronomy Library (http://idlastro.gsfc.nasa.gov/) and of the SolarSoft IDL distribution (SSW). Additional figures were produced using the Veusz plotting package (\u00a9 2003\u20132015 Jeremy Sanders). \n\nFacility: NuSTAR.\n\nPublished - 2016-43.pdf
", "abstract": "We present results from the the first campaign of dedicated solar observations undertaken by the Nuclear Spectroscopic Telescope ARray (NuSTAR) hard X-ray (HXR) telescope. Designed as an astrophysics mission, NuSTAR nonetheless has the capability of directly imaging the Sun at HXR energies (>3 keV) with an increase in sensitivity of at least two magnitude compared to current non-focusing telescopes. In this paper we describe the scientific areas where NuSTAR will make major improvements on existing solar measurements. We report on the techniques used to observe the Sun with NuSTAR, their limitations and complications, and the procedures developed to optimize solar data quality derived from our experience with the initial solar observations. These first observations are briefly described, including the measurement of the Fe K-shell lines in a decaying X-class flare, HXR emission from high in the solar corona, and full-disk HXR images of the Sun.", "date": "2016-07-20", "date_type": "published", "publication": "Astrophysical Journal", "volume": "826", "number": "1", "publisher": "American Astronomical Society", "pagerange": "Art. No. 20", "id_number": "CaltechAUTHORS:20160805-091208103", "issn": "0004-637X", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20160805-091208103", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA", "grant_number": "NNG08FD60C" }, { "agency": "NASA/JPL/Caltech" }, { "agency": "NASA", "grant_number": "NNX12AJ36G" }, { "agency": "NASA", "grant_number": "NNX14AG07G" }, { "agency": "Swiss National Science Foundation (SNSF)", "grant_number": "200021-140308" }, { "agency": "NASA Earth and Space Science Fellowship", "grant_number": "NNX13AM41H" }, { "agency": "Department of Energy (DOE)", "grant_number": "DE-AC52-07NA27344" }, { "agency": "NASA", "grant_number": "NNX15AK26G" }, { "agency": "NASA", "grant_number": "NNX14AN84G" }, { "agency": "Royal Society" } ] }, "other_numbering_system": { "items": [ { "id": "2016-43", "name": "Space Radiation Laboratory" } ] }, "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" }, { "id": "NuSTAR" } ] }, "doi": "10.3847/0004-637X/826/1/20", "primary_object": { "basename": "2016-43.pdf", "url": "https://authors.library.caltech.edu/records/6x9kd-00n07/files/2016-43.pdf" }, "resource_type": "article", "pub_year": "2016", "author_list": "Grefenstette, Brian W.; Glesener, Lindsay; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/ntk0y-y0426", "eprint_id": 72090, "eprint_status": "archive", "datestamp": "2023-08-20 12:52:47", "lastmod": "2024-01-13 20:20:32", "type": "book_section", "metadata_visibility": "show", "creators": { "items": [ { "id": "Forster-K", "name": { "family": "Foster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Madsen-K-K", "name": { "family": "Madsen", "given": "Kristin K." }, "orcid": "0000-0003-1252-4891" }, { "id": "Miyasaka-Hiromasa", "name": { "family": "Miyasaka", "given": "Hiromasa" }, "orcid": "0000-0002-8074-4186" }, { "id": "Craig-W-W", "name": { "family": "Craig", "given": "William W." } }, { "id": "Harrison-F-A", "name": { "family": "Harrison", "given": "Fiona A." }, "orcid": "0000-0003-2992-8024" }, { "id": "Rana-V-R", "name": { "family": "Rana", "given": "Vikram R." }, "orcid": "0000-0003-1703-8796" }, { "id": "Markwardt-C-B", "name": { "family": "Markwardt", "given": "Craig B." }, "orcid": "0000-0001-9803-3879" }, { "id": "Grefenstette-B-W", "name": { "family": "Grefenstette", "given": "Brian W." }, "orcid": "0000-0002-1984-2932" } ] }, "title": "Getting NuSTAR on target: predicting mast motion", "ispublished": "unpub", "full_text_status": "public", "keywords": "NuSTAR, NASA small explorer, X-ray optics, extendable mast, Science Operations, Metrology, mast thermal flexing", "note": "\u00a9 2016 Society of Photo-Optical Instrumentation Engineers (SPIE). \n\nThis work was supported under NASA contract No. NNG08FD60C, and made use of data from the NuSTAR mission, a project led by the California Institute of Technology, managed by the Jet Propulsion Laboratory, and funded by the National Aeronautics and Space Administration. We thank the NuSTAR operations, Software and Calibration teams for support with the execution and analysis of these observations. This research has made use of the NuSTAR Data Analysis Software (NuSTARDAS) jointly developed by the ASI Science Data Center (ASDC, Italy) and the California Institute of Technology (USA).\n\nPublished - 99100Z.pdf
Submitted - 1608.01704.pdf
", "abstract": "The Nuclear Spectroscopic Telescope Array (NuSTAR) is the first focusing high energy (3-79 keV) X-ray observatory operating for four years from low Earth orbit. The X-ray detector arrays are located on the spacecraft bus with the optics modules mounted on a flexible mast of 10.14m length. The motion of the telescope optical axis on the detectors during each observation is measured by a laser metrology system and matches the pre-launch predictions of the thermal flexing of the mast as the spacecraft enters and exits the Earths shadow each orbit. However, an additional motion of the telescope field of view was discovered during observatory commissioning that is associated with the spacecraft attitude control system and an additional flexing of the mast correlated with the Solar aspect angle for the observation. We present the methodology developed to predict where any particular target coordinate will fall on the NuSTAR detectors based on the Solar aspect angle at the scheduled time of an observation. This may be applicable to future observatories that employ optics deployed on extendable masts. The automation of the prediction system has greatly improved observatory operations efficiency and the reliability of observation planning.", "date": "2016-07-15", "date_type": "published", "publisher": "Society of Photo-Optical Instrumentation Engineers (SPIE)", "place_of_pub": "Bellingham, WA", "pagerange": "Art. No. 99100Z", "id_number": "CaltechAUTHORS:20161117-074725282", "isbn": "978-1-5106-0199-4", "book_title": "Observatory Operations: Strategies, Processes, and Systems VI", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20161117-074725282", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA", "grant_number": "NNG08FD60C" }, { "agency": "NASA/JPL/Caltech" } ] }, "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" }, { "id": "NuSTAR" } ] }, "contributors": { "items": [ { "id": "Peck-A-B", "name": { "family": "Peck", "given": "Alison B." } }, { "id": "Seaman-R-L", "name": { "family": "Seaman", "given": "Robert L." } }, { "id": "Benn-C-R", "name": { "family": "Benn", "given": "Chris R." } } ] }, "doi": "10.1117/12.2231239", "primary_object": { "basename": "1608.01704.pdf", "url": "https://authors.library.caltech.edu/records/ntk0y-y0426/files/1608.01704.pdf" }, "related_objects": [ { "basename": "99100Z.pdf", "url": "https://authors.library.caltech.edu/records/ntk0y-y0426/files/99100Z.pdf" } ], "resource_type": "book_section", "pub_year": "2016", "author_list": "Foster, Karl; Madsen, Kristin K.; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/84hks-95e66", "eprint_id": 69472, "eprint_status": "archive", "datestamp": "2023-08-22 18:17:39", "lastmod": "2023-10-20 19:05:48", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Hong-Jaesub", "name": { "family": "Hong", "given": "JaeSub" } }, { "id": "Mori-Kaya", "name": { "family": "Mori", "given": "Kaya" }, "orcid": "0000-0002-9709-5389" }, { "id": "Hailey-C-J", "name": { "family": "Hailey", "given": "Charles J." } }, { "id": "Nynka-M", "name": { "family": "Nynka", "given": "Melania" }, "orcid": "0000-0002-3310-1946" }, { "id": "Zhang-Shuo", "name": { "family": "Zhang", "given": "Shuo" }, "orcid": "0000-0002-2967-790X" }, { "id": "Gotthelf-E-V", "name": { "family": "Gotthelf", "given": "Eric" }, "orcid": "0000-0003-3847-3957" }, { "id": "Fornasini-F-M", "name": { "family": "Fornasini", "given": "Francesca M." } }, { "id": "Krivonos-R-A", "name": { "family": "Krivonos", "given": "Roman" }, "orcid": "0000-0003-2737-5673" }, { "id": "Bauer-F-E", "name": { "family": "Bauer", "given": "Franz" }, "orcid": "0000-0002-8686-8737" }, { "id": "Perez-K-M", "name": { "family": "Perez", "given": "Kerstin" }, "orcid": "0000-0002-6404-4737" }, { "id": "Tomsick-J-A", "name": { "family": "Tomsick", "given": "John A." }, "orcid": "0000-0001-5506-9855" }, { "id": "Bodaghee-A", "name": { "family": "Bodaghee", "given": "Arash" }, "orcid": "0000-0002-7315-3732" }, { "id": "Chiu-Jeng-Lun", "name": { "family": "Chiu", "given": "Jeng-Lun" } }, { "id": "Clavel-M", "name": { "family": "Clavel", "given": "Ma\u00efca" }, "orcid": "0000-0003-0724-2742" }, { "id": "Stern-D", "name": { "family": "Stern", "given": "Daniel" }, "orcid": "0000-0003-2686-9241" }, { "id": "Grindlay-J-E", "name": { "family": "Grindlay", "given": "Jonathan E." }, "orcid": "0000-0002-1323-5314" }, { "id": "Alexander-D-M", "name": { "family": "Alexander", "given": "David M." }, "orcid": "0000-0002-5896-6313" }, { "id": "Aramaki-Tsuguo", "name": { "family": "Aramaki", "given": "Tsuguo" } }, { "id": "Baganoff-F-K", "name": { "family": "Baganoff", "given": "Frederick K." } }, { "id": "Barret-D", "name": { "family": "Barret", "given": "Didier" }, "orcid": "0000-0002-0393-9190" }, { "id": "Barri\u00e8re-N-M", "name": { "family": "Barri\u00e8re", "given": "Nicolas" }, "orcid": "0000-0001-9407-9490" }, { "id": "Boggs-S-E", "name": { "family": "Boggs", "given": "Steven E." }, "orcid": "0000-0001-9567-4224" }, { "id": "Canipe-A-M", "name": { "family": "Canipe", "given": "Alicia M." } }, { "id": "Christensen-F-E", "name": { "family": "Christensen", "given": "Finn E." }, "orcid": "0000-0001-5679-1946" }, { "id": "Craig-W-W", "name": { "family": "Craig", "given": "William W." } }, { "id": "Desai-M-A", "name": { "family": "Desai", "given": "Meera A." } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Giommi-P", "name": { "family": "Giommi", "given": "Paolo" } }, { "id": "Grefenstette-B-W", "name": { "family": "Grefenstette", "given": "Brian W." }, "orcid": "0000-0002-1984-2932" }, { "id": "Harrison-F-A", "name": { "family": "Harrison", "given": "Fiona A." }, "orcid": "0000-0003-2992-8024" }, { "id": "Hong-Dooran", "name": { "family": "Hong", "given": "Dooran" } }, { "id": "Hornstrup-A", "name": { "family": "Hornstrup", "given": "Allan" } }, { "id": "Kitaguchi-Takao", "name": { "family": "Kitaguchi", "given": "Takao" } }, { "id": "Koglin-J-E", "name": { "family": "Koglin", "given": "Jason E." } }, { "id": "Madsen-K-K", "name": { "family": "Madsen", "given": "Kristin K." }, "orcid": "0000-0003-1252-4891" }, { "id": "Mao-Peter-H", "name": { "family": "Mao", "given": "Peter H." } }, { "id": "Miyasaka-Hiromasa", "name": { "family": "Miyasaka", "given": "Hiromasa" }, "orcid": "0000-0002-8074-4186" }, { "id": "Perri-M", "name": { "family": "Perri", "given": "Matteo" } }, { "id": "Pivovaroff-M-J", "name": { "family": "Pivovaroff", "given": "Michael J." } }, { "id": "Puccetti-S", "name": { "family": "Puccetti", "given": "Simonetta" }, "orcid": "0000-0002-2734-7835" }, { "id": "Rana-V-R", "name": { "family": "Rana", "given": "Vikram" }, "orcid": "0000-0003-1703-8796" }, { "id": "Westergaard-N-J", "name": { "family": "Westergaard", "given": "Niels J." } }, { "id": "Zhang-W-W", "name": { "family": "Zhang", "given": "William W." }, "orcid": "0000-0002-1426-9698" }, { "id": "Zoglauer-A-C", "name": { "family": "Zoglauer", "given": "Andreas" } } ] }, "title": "NuSTAR Hard X-Ray Survey of the Galactic Center Region. II. X-Ray Point Sources", "ispublished": "pub", "full_text_status": "public", "keywords": "Galaxy: center; X-rays: binaries; X-rays: diffuse background; X-rays: general", "note": "\u00a9 2016. The American Astronomical Society. \n\nReceived 2016 January 29. Accepted 2016 May 12. Published 2016 July 12. \n\nThis work was supported under NASA Contract No. NNG08FD60C, and made use of data from the NuSTAR mission, a project led by the California Institute of Technology, managed by the Jet Propulsion Laboratory, and funded by the National Aeronautics and Space Administration. We thank the NuSTAR Operations, Software and Calibration teams for support with the execution and analysis of these observations. We thank G. Ponti for careful reading and suggestions of the manuscript. This research has made use of the NuSTAR Data Analysis Software (NuSTARDAS) jointly developed by the ASI Science Data Center (ASDC, Italy) and the California Institute of Technology (USA). J. Hong acknowledges support from NASA/APRA grant NNX14AD59G. R. Krivonos acknowledges support from Russian Science Foundation through grant 14-22-00271. F.E. Bauer acknowledges support from CONICYT-Chile (Basal-CATA PFB-06/2007, FONDECYT 1141218, \"EMBIGGEN\" Anillo ACT1101), and the Ministry of Economy, Development, and Tourism's Millennium Science Initiative through grant IC120009, awarded to The Millennium Institute of Astrophysics, MAS. S. Zhang is supported by NASA Headquarters under the NASA Earth and Space Science Fellowship Program\u2014Grant NNX13AM31. D. Barret acknowledges support from the French Space Agency (CNES).\n\nPublished - 2016-44.pdf
", "abstract": "We present the first survey results of hard X-ray point sources in the Galactic Center (GC) region by NuSTAR. We have discovered 70 hard (3\u201379 keV) X-ray point sources in a 0.6 deg^2 region around Sgr A* with a total exposure of 1.7 Ms, and 7 sources in the Sgr B2 field with 300 ks. We identify clear Chandra counterparts for 58 NuSTAR sources and assign candidate counterparts for the remaining 19. The NuSTAR survey reaches X-ray luminosities of \u223c4\u00d7 and \u223c8 \u00d7 10^(32) erg s^(-1) at the GC (8 kpc) in the 3\u201310 and 10\u201340 keV bands, respectively. The source list includes three persistent luminous X-ray binaries (XBs) and the likely run-away pulsar called the Cannonball. New source-detection significance maps reveal a cluster of hard (> 10 keV) X-ray sources near the Sgr A diffuse complex with no clear soft X-ray counterparts. The severe extinction observed in the Chandra spectra indicates that all the NuSTAR sources are in the central bulge or are of extragalactic origin. Spectral analysis of relatively bright NuSTAR sources suggests that magnetic cataclysmic variables constitute a large fraction (> 40%\u201360%). Both spectral analysis and logN\u2013logS distributions of the NuSTAR sources indicate that the X-ray spectra of the NuSTAR sources should have kT > 20 keV on average for a single temperature thermal plasma model or an average photon index of \u0393 = 1.5\u20132 for a power-law model. These findings suggest that the GC X-ray source population may contain a larger fraction of XBs with high plasma temperatures than the field population.", "date": "2016-07-10", "date_type": "published", "publication": "Astrophysical Journal", "volume": "825", "number": "2", "publisher": "American Astronomical Society", "pagerange": "Art. No. 132", "id_number": "CaltechAUTHORS:20160805-103318852", "issn": "0004-637X", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20160805-103318852", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA", "grant_number": "NNG08FD60C" }, { "agency": "NASA/JPL/Caltech" }, { "agency": "NASA", "grant_number": "NNX14AD59G" }, { "agency": "Russian Science Foundation", "grant_number": "14-22-00271" }, { "agency": "Basal-CATA", "grant_number": "PFB-06/2007" }, { "agency": "Fondo Nacional de Desarrollo Cient\u00edfico y Tecnol\u00f3gico (FONDECYT)", "grant_number": "1141218" }, { "agency": "Comisi\u00f3n Nacional de Investigaci\u00f3n Cient\u00edfica y Tecnol\u00f3gica (CONICYT)", "grant_number": "ACT1101" }, { "agency": "Iniciativa Cient\u00edfica Milenio del Ministerio de Econom\u00eda, Fomento y Turismo", "grant_number": "IC120009" }, { "agency": "NASA Earth and Space Science Fellowship", "grant_number": "NNX13AM31" }, { "agency": "Centre National d'\u00c9tudes Spatiales (CNES)" } ] }, "other_numbering_system": { "items": [ { "id": "2016-44", "name": "Space Radiation Laboratory" } ] }, "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" }, { "id": "NuSTAR" } ] }, "doi": "10.3847/0004-637X/825/2/132", "primary_object": { "basename": "2016-44.pdf", "url": "https://authors.library.caltech.edu/records/84hks-95e66/files/2016-44.pdf" }, "resource_type": "article", "pub_year": "2016", "author_list": "Hong, JaeSub; Mori, Kaya; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/necpa-qqa59", "eprint_id": 63703, "eprint_status": "archive", "datestamp": "2023-08-22 17:02:08", "lastmod": "2023-10-17 15:28:44", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Aird-J-A", "name": { "family": "Aird", "given": "J." }, "orcid": "0000-0003-1908-8463" }, { "id": "Harrison-F-A", "name": { "family": "Harrison", "given": "F. A." }, "orcid": "0000-0003-2992-8024" }, { "id": "Balokovi\u0107-M", "name": { "family": "Balokovi\u0107", "given": "M." }, "orcid": "0000-0003-0476-6647" }, { "id": "Brightman-M", "name": { "family": "Brightman", "given": "M." }, "orcid": "0000-0002-8147-2602" }, { "id": "Forster-K", "name": { "family": "Forster", "given": "K." }, "orcid": "0000-0001-5800-5531" }, { "id": "Grefenstette-B-W", "name": { "family": "Grefenstette", "given": "B. W." }, "orcid": "0000-0002-1984-2932" }, { "id": "Madsen-K-K", "name": { "family": "Madsen", "given": "K. K." }, "orcid": "0000-0003-1252-4891" } ] }, "title": "The NuSTAR Extragalactic Surveys: First Direct Measurements of the > 10 keV X-Ray Luminosity Function for Active Galactic Nuclei at z > 0.1", "ispublished": "pub", "full_text_status": "public", "keywords": "galaxies: active; galaxies: evolution; X-rays: galaxies", "note": "\u00a9 2015 The American Astronomical Society. \n\nReceived 2015 July 31; accepted 2015 October 8; published 2015 December 10. \n\nThis work made use of data from the NuSTAR mission, a project led by the California Institute of Technology, managed by the Jet Propulsion Laboratory, and funded by the National Aeronautics and Space Administration. We thank the NuSTAR Operations, Software, and Calibration teams for support with the execution and analysis of these observations. This research has made use of the NuSTAR Data Analysis Software (NUSTARDAS) jointly developed by the ASI Science Data Center (ASDC, Italy) and the California Institute of Technology (USA). We acknowledge financial support from: ERC Advanced Grant FEEDBACK at the University of Cambridge (J.A., A.C.F.); a COFUND Junior Research Fellowship from the Institute of Advanced Study, Durham University (J.A.); the Science and Technology Facilities Council (STFC) grants ST/I001573/1 (D.M.A. and A.D.M.), ST/K501979/1 (G.B.L.), and ST/J003697/1 (P.G.); the Leverhulme Trust (D.M.A.); the Caltech Kingsley Visitor Program (D.M.A., A.C.); NSF award AST 1008067 (D.R.B.); NASA grants 11-ADAP11-0218 and GO3-14150C (F.C.); an Alfred P. Sloan Research Fellowship and a Dartmouth Class of 1962 Faculty Fellowship (R.C.H.); CONICYT-Chile grants Basal-CATA PFB-06/2007 (F.E.B., E.T.); FONDECYT 1141218 (F.E.B.) and 1120061 (E.T.); \"EMBIGGEN\" Anillo ACT1101 (F.E.B., E.T.); the Ministry of Economy, Development, and Tourisms Millennium Science Initiative through grant IC120009, awarded to The Millennium Institute of Astrophysics, MAS (F.E.B.); NASA NuSTAR subcontract 44A-1092750 and NASA ADP grant NNX10AC99G (W.N.B., B.L.); ASI/INAF grant I/037/12/0011/13 (A.C., L.Z.); and NASA Earth and Space Science Fellowship Program grant NNX14AQ07H (M.B.).\n\nPublished - Aird_2015.pdf
Submitted - 1511.04184v1.pdf
", "abstract": "We present the first direct measurements of the rest-frame 10\u201340 keV X-ray luminosity function (XLF) of active galactic nuclei (AGNs) based on a sample of 94 sources at 0.1 < z < 3, selected at 8\u201324 keV energies from sources in the Nuclear Spectroscopic Telescope Array (NuSTAR) extragalactic survey program. Our results are consistent with the strong evolution of the AGN population seen in prior, lower-energy studies of the XLF. However, different models of the intrinsic distribution of absorption, which are used to correct for selection biases, give significantly different predictions for the total number of sources in our sample, leading to small, systematic differences in our binned estimates of the XLF. Adopting a model with a lower intrinsic fraction of Compton-thick sources and a larger population of sources with column densities N_H ~ 10^(23-24) cm^(\u22122) or a model with stronger Compton reflection component (with a relative normalization of R ~ 2 at all luminosities) can bring extrapolations of the XLF from 2\u201310 keV into agreement with our NuSTAR sample. Ultimately, X-ray spectral analysis of the NuSTAR sources is required to break this degeneracy between the distribution of absorbing column densities and the strength of the Compton reflection component and thus refine our measurements of the XLF. Furthermore, the models that successfully describe the high-redshift population seen by NuSTAR tend to over-predict previous, high-energy measurements of the local XLF, indicating that there is evolution of the AGN population that is not fully captured by the current models.", "date": "2015-12-10", "date_type": "published", "publication": "Astrophysical Journal", "volume": "815", "number": "1", "publisher": "American Astronomical Society", "pagerange": "Art. No. 66", "id_number": "CaltechAUTHORS:20160115-101313300", "issn": "0004-637X", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20160115-101313300", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "European Research Council (ERC)", "grant_number": "FEEDBACK" }, { "agency": "Durham University" }, { "agency": "Science and Technology Facilities Council (STFC)", "grant_number": "ST/I001573/1" }, { "agency": "Science and Technology Facilities Council (STFC)", "grant_number": "ST/K501979/1" }, { "agency": "Science and Technology Facilities Council (STFC)", "grant_number": "ST/J003697/1" }, { "agency": "Leverhulme Trust" }, { "agency": "Caltech Kingsley Visitor Program" }, { "agency": "NSF", "grant_number": "AST-1008067" }, { "agency": "NASA", "grant_number": "GO3-14150C" }, { "agency": "Alfred P. Sloan Foundation" }, { "agency": "Dartmouth College" }, { "agency": "Basal-CATA", "grant_number": "PFB-06/2007" }, { "agency": "Fondo Nacional de Desarrollo Cient\u00edfico y Tecnol\u00f3gico (FONDECYT)", "grant_number": "1141218" }, { "agency": "Fondo Nacional de Desarrollo Cient\u00edfico y Tecnol\u00f3gico (FONDECYT)", "grant_number": "1120061" }, { "agency": "Comisi\u00f3n Nacional de Investigaci\u00f3n Cient\u00edfica y Tecnol\u00f3gica (CONICYT)", "grant_number": "Anillo ACT1101" }, { "agency": "Iniciativa Cient\u00edfica Milenio del Ministerio de Econom\u00eda, Fomento y Turismo", "grant_number": "IC120009" }, { "agency": "Caltech NuSTAR subcontract", "grant_number": "44A-1092750" }, { "agency": "NASA", "grant_number": "NNX10AC99G" }, { "agency": "Agenzia Spaziale Italiana (ASI)", "grant_number": "I/037/12/0-011/13" }, { "agency": "NASA Earth and Space Science Fellowship", "grant_number": "NNX14AQ07H" }, { "agency": "NASA/JPL/Caltech" }, { "agency": "Istituto Nazionale di Astrofisica (INAF)" } ] }, "other_numbering_system": { "items": [ { "id": "2015-16", "name": "Space Radiation Laboratory" } ] }, "local_group": { "items": [ { "id": "NuSTAR" }, { "id": "Space-Radiation-Laboratory" } ] }, "doi": "10.1088/0004-637X/815/1/66", "primary_object": { "basename": "1511.04184v1.pdf", "url": "https://authors.library.caltech.edu/records/necpa-qqa59/files/1511.04184v1.pdf" }, "related_objects": [ { "basename": "Aird_2015.pdf", "url": "https://authors.library.caltech.edu/records/necpa-qqa59/files/Aird_2015.pdf" } ], "resource_type": "article", "pub_year": "2015", "author_list": "Aird, J.; Harrison, F. A.; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/tpt82-syd77", "eprint_id": 63162, "eprint_status": "archive", "datestamp": "2023-08-22 17:00:25", "lastmod": "2023-10-25 23:36:24", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Mori-Kaya", "name": { "family": "Mori", "given": "Kaya" }, "orcid": "0000-0002-9709-5389" }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Grefenstette-B-W", "name": { "family": "Grefenstette", "given": "Brian W." }, "orcid": "0000-0002-1984-2932" }, { "id": "Harrison-F-A", "name": { "family": "Harrison", "given": "Fiona A." }, "orcid": "0000-0003-2992-8024" }, { "id": "Madsen-K-K", "name": { "family": "Madsen", "given": "Kristin K." }, "orcid": "0000-0003-1252-4891" }, { "id": "Mao-Peter-H", "name": { "family": "Mao", "given": "Peter H." } }, { "id": "Miyasaka-Hiromasa", "name": { "family": "Miyasaka", "given": "Hiromasa" }, "orcid": "0000-0002-8074-4186" }, { "id": "Rana-V-R", "name": { "family": "Rana", "given": "Vikram" }, "orcid": "0000-0003-1703-8796" } ] }, "title": "NuSTAR Hard X-ray Survey of the Galactic Center Region I: Hard X-ray Morphology and Spectroscopy of the Diffuse Emission", "ispublished": "pub", "full_text_status": "public", "keywords": "Galaxy: center; radiation mechanisms: non-thermal; X-rays: general; X-rays: ISM", "note": "\u00a9 2015 American Astronomical Society. \n\nReceived 2015 June 8; accepted 2015 October 14; published 2015 November 19. \n\nThis work was supported under NASA Contract No. NNG08FD60C, and made use of data from the NuSTAR mission, a project led by the California Institute of Technology, managed by the Jet Propulsion Laboratory, and funded by the National Aeronautics and Space Administration. We thank the NuSTAR Operations, Software and Calibration teams for support with the execution and analysis of these observations. This research has made use of the NuSTAR Data Analysis Software (NuSTARDAS) jointly developed by the ASI Science Data Center (ASDC, Italy) and the California Institute of Technology (USA). R. Krivonos acknowledges support from Russian Science Foundation through grant 14\u201322-00271. G. Ponti acknowledges support via an EU Marie Curie IntraEuropean fellowship under contract no. FP-PEOPLE-2012-IEF-331095, the Bundesministerium f\u00fcr Wirtschaft und Technologie/Deutsches Zentrum f\u00fcr Luft- und Raumfahrt (BMWI/DLR, FKZ 50 OR 1408) and the Max Planck Society. F.E. Bauer acknowledges support from CONICYT-Chile (Basal-CATA PFB-06/2007, FONDECYT 1141218, \"EMBIGGEN\" Anillo ACT1101), and the Ministry of Economy, Development, and Tourism's Millennium Science Initiative through grant IC120009, awarded to The Millennium Institute of Astrophysics, MAS. S. Zhang is supported by NASA Headquarters under the NASA Earth and Space Science Fellowship Program\u2014Grant \"NNX13AM31.\" D. Barret acknowledges support from the French Space Agency (CNES). We thank Tahir Yaqoob for useful discussions on the MYTorus model.\n\nPublished - Mori_2015.pdf
Submitted - 1510.04631v1.pdf
", "abstract": "We present the first sub-arcminute images of the Galactic Center above 10 keV, obtained with NuSTAR. NuSTAR resolves the hard X-ray source IGR J17456\u20132901 into non-thermal X-ray filaments, molecular clouds, point sources, and a previously unknown central component of hard X-ray emission (CHXE). NuSTAR detects four non-thermal X-ray filaments, extending the detection of their power-law spectra with \u0393 ~ 1.3\u20132.3 up to ~50 keV. A morphological and spectral study of the filaments suggests that their origin may be heterogeneous, where previous studies suggested a common origin in young pulsar wind nebulae (PWNe). NuSTAR detects non-thermal X-ray continuum emission spatially correlated with the 6.4 keV Fe K\u03b1 fluorescence line emission associated with two Sgr A molecular clouds: MC1 and the Bridge. Broadband X-ray spectral analysis with a Monte-Carlo based X-ray reflection model self-consistently determined their intrinsic column density (~10^(23) cm^(\u22122)), primary X-ray spectra (power-laws with \u0393 ~ 2) and set a lower limit of the X-ray luminosity of Sgr A* flare illuminating the Sgr A clouds to L_X \u2273 10^(38) erg s^(\u22121). Above ~20 keV, hard X-ray emission in the central 10 pc region around Sgr A* consists of the candidate PWN G359.95\u20130.04 and the CHXE, possibly resulting from an unresolved population of massive CVs with white dwarf masses M_(WD) ~ 0.9 M_\u2299. Spectral energy distribution analysis suggests that G359.95\u20130.04 is likely the hard X-ray counterpart of the ultra-high gamma-ray source HESS J1745\u2013290, strongly favoring a leptonic origin of the GC TeV emission.", "date": "2015-12-01", "date_type": "published", "publication": "Astrophysical Journal", "volume": "814", "number": "2", "publisher": "American Astronomical Society", "pagerange": "Art. No. 94", "id_number": "CaltechAUTHORS:20151223-064848832", "issn": "0004-637X", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20151223-064848832", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA", "grant_number": "NNG08FD60C" }, { "agency": "NASA/JPL/Caltech" }, { "agency": "Russian Science Foundation", "grant_number": "14-22-00271" }, { "agency": "Marie Curie Fellowship", "grant_number": "FP-PEOPLE-2012-IEF-331095" }, { "agency": "Bundesministerium f\u00fcr Wirtschaft und Technologie (BMWi)", "grant_number": "BMWI/DLR, FKZ 50 OR 1408" }, { "agency": "Max Planck Society" }, { "agency": "Basal-CATA", "grant_number": "PFB-06/2007" }, { "agency": "Fondo Nacional de Desarrollo Cient\u00edfico y Tecnol\u00f3gico (FONDECYT)", "grant_number": "1141218" }, { "agency": "Comisi\u00f3n Nacional de Investigaci\u00f3n Cient\u00edfica y Tecnol\u00f3gica (CONICYT)", "grant_number": "Anillo ACT1101" }, { "agency": "Iniciativa Cient\u00edfica Milenio del Ministerio de Econom\u00eda, Fomento y TurismoMinistry for the Economy, Development, and Tourism's Millennium Science Initiative", "grant_number": "IC120009" }, { "agency": "NASA Earth and Space Science Fellowship", "grant_number": "NNX13AM31" }, { "agency": "Centre National d'\u00c9tudes Spatiales (CNES)" }, { "agency": "Deutsches Zentrum f\u00fcr Luft- und Raumfahrt (DLR)" } ] }, "other_numbering_system": { "items": [ { "id": "2015-19", "name": "Space Radiation Laboratory" } ] }, "local_group": { "items": [ { "id": "NuSTAR" }, { "id": "Space-Radiation-Laboratory" } ] }, "doi": "10.1088/0004-637X/814/2/94", "primary_object": { "basename": "1510.04631v1.pdf", "url": "https://authors.library.caltech.edu/records/tpt82-syd77/files/1510.04631v1.pdf" }, "related_objects": [ { "basename": "Mori_2015.pdf", "url": "https://authors.library.caltech.edu/records/tpt82-syd77/files/Mori_2015.pdf" } ], "resource_type": "article", "pub_year": "2015", "author_list": "Mori, Kaya; Forster, Karl; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/5r5sw-0an90", "eprint_id": 61139, "eprint_status": "archive", "datestamp": "2023-08-20 08:37:05", "lastmod": "2023-10-24 23:44:21", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Madsen-K-K", "name": { "family": "Madsen", "given": "Kristin K." }, "orcid": "0000-0003-1252-4891" }, { "id": "F\u00fcrst-F", "name": { "family": "F\u00fcrst", "given": "Felix" }, "orcid": "0000-0003-0388-0560" }, { "id": "Walton-D-J", "name": { "family": "Walton", "given": "Dominic J." }, "orcid": "0000-0001-5819-3552" }, { "id": "Harrison-F-A", "name": { "family": "Harrison", "given": "Fiona A." }, "orcid": "0000-0003-2992-8024" }, { "id": "Nalewajko-K", "name": { "family": "Nalewajko", "given": "Krzysztof" } }, { "id": "Ballantyne-D-R", "name": { "family": "Ballantyne", "given": "David R." }, "orcid": "0000-0001-8128-6976" }, { "id": "Boggs-S-E", "name": { "family": "Boggs", "given": "Steve E." }, "orcid": "0000-0001-9567-4224" }, { "id": "Brenneman-L-W", "name": { "family": "Brenneman", "given": "Laura W." } }, { "id": "Christensen-F-E", "name": { "family": "Christensen", "given": "Finn E." }, "orcid": "0000-0001-5679-1946" }, { "id": "Craig-W-W", "name": { "family": "Craig", "given": "William W." } }, { "id": "Fabian-A-C", "name": { "family": "Fabian", "given": "Andrew C." }, "orcid": "0000-0002-9378-4072" }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Grefenstette-B-W", "name": { "family": "Grefenstette", "given": "Brian W." }, "orcid": "0000-0002-1984-2932" }, { "id": "Guainazzi-M", "name": { "family": "Guainazzi", "given": "Matteo" } }, { "id": "Hailey-C-J", "name": { "family": "Hailey", "given": "Charles J." } }, { "id": "Madejski-G-M", "name": { "family": "Madejski", "given": "Greg M." } }, { "id": "Matt-G", "name": { "family": "Matt", "given": "Giorgio" }, "orcid": "0000-0002-2152-0916" }, { "id": "Stern-D", "name": { "family": "Stern", "given": "Daniel" }, "orcid": "0000-0003-2686-9241" }, { "id": "Walter-Roland", "name": { "family": "Walter", "given": "Roland" } }, { "id": "Zhang-W-W", "name": { "family": "Zhang", "given": "William W." }, "orcid": "0000-0002-1426-9698" } ] }, "title": "3C 273 with NuSTAR: Unveiling the Active Galactic Nucleus", "ispublished": "pub", "full_text_status": "public", "keywords": "quasars: individual (3C 273) - X-rays: individual (3C 273)", "note": "\u00a9 2015. The American Astronomical Society. \n\nReceived 2015 June 16; accepted 2015 August 26; published 2015 October 5. \n\nWe thank Chris Done for bringing to our attention the alternative interpretation of the jet as a two-component inverse Compton model, and the anonymous referee, whose remarks and corrections helped improve the quality of this paper. This work was supported under NASA Contract No. NNG08FD60C and made use of data from the NuSTAR mission, a project led by the California Institute of Technology, managed by the Jet Propulsion Laboratory, and funded by the National Aeronautics and Space Administration. We thank the NuSTAR Operations, Software, and Calibration teams for support with the execution and analysis of these observations. This research has made use of the NuSTAR Data Analysis Software (NuSTARDAS) jointly developed by the ASI Science Data Center (ASDC, Italy) and the California Institute of Technology (USA). \n\nFacilities: Fermi - Fermi Gamma-Ray Space Telescope (formerly GLAST), Chandra (CXO) - , INTEGRAL - International Gamma-Ray Astrophysics Laboratory satellite, NuSTAR - The NuSTAR (Nuclear Spectroscopic Telescope Array) mission, Suzaku - Suzaku (ASTRO-EII), Swift - Swift Gamma-Ray Burst Mission, and XMM - Newton X-Ray Multimirror Mission satellite.\n\nPublished - Craig_2015p14.pdf
Submitted - 1506.06182v2.pdf
", "abstract": "We present results from a 244 ks NuSTAR observation of 3C 273 obtained during a cross-calibration campaign with the Chandra, INTEGRAL, Suzaku, Swift, and XMM-Newton observatories. We show that the spectrum, when fit with a power-law model using data from all observatories except INTEGRAL over the 1\u201378 keV band, leaves significant residuals in the NuSTAR data between 30 and 78 keV. The NuSTAR 3\u201378 keV spectrum is well described by an exponentially cutoff power law (\u0393 = 1.646 \u00b1 0.006, E_(cutoff) = 202_(-34)^(+51) keV) with a weak reflection component from cold, dense material. There is also evidence for a weak (EW = 23 \u00b1 11 eV) neutral iron line. We interpret these features as arising from coronal emission plus reflection off an accretion disk or distant material. Beyond 80 keV INTEGRAL data show clear excess flux relative to an extrapolation of the active galactic nucleus model fit to NuSTAR. This high-energy power law is consistent with the presence of a beamed jet, which begins to dominate over emission from the inner accretion flow at 30\u201340 keV. Modeling the jet locally (in the NuSTAR + INTEGRAL band) as a power law, we find that the coronal component is fit by \u0393_(AGN) = 1.638 \u00b1 0.045, E_(cutoff) = 47 \u00b1 15 keV, and jet photon index by \u0393_(jet) = 1.05 \u00b1 0.4. We also consider Fermi/LAT observations of 3C 273, and here the broadband spectrum of the jet can be described by a log-parabolic model, peaking at ~2 MeV. Finally, we investigate the spectral variability in the NuSTAR band and find an inverse correlation between flux and \u0393.", "date": "2015-10-10", "date_type": "published", "publication": "Astrophysical Journal", "volume": "812", "number": "1", "publisher": "American Astronomical Society", "pagerange": "Art. No. 14", "id_number": "CaltechAUTHORS:20151015-090448563", "issn": "0004-637X", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20151015-090448563", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA", "grant_number": "NNG08FD60C" }, { "agency": "NASA/JPL/Caltech" } ] }, "other_numbering_system": { "items": [ { "id": "2015-27", "name": "Space Radiation Laboratory" } ] }, "local_group": { "items": [ { "id": "NuSTAR" }, { "id": "Space-Radiation-Laboratory" } ] }, "doi": "10.1088/0004-637X/812/1/14", "primary_object": { "basename": "1506.06182v2.pdf", "url": "https://authors.library.caltech.edu/records/5r5sw-0an90/files/1506.06182v2.pdf" }, "related_objects": [ { "basename": "Craig_2015p14.pdf", "url": "https://authors.library.caltech.edu/records/5r5sw-0an90/files/Craig_2015p14.pdf" } ], "resource_type": "article", "pub_year": "2015", "author_list": "Madsen, Kristin K.; F\u00fcrst, Felix; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/zn6v4-s0p27", "eprint_id": 62555, "eprint_status": "archive", "datestamp": "2023-08-20 08:01:48", "lastmod": "2023-10-25 17:14:47", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Madsen-K-K", "name": { "family": "Madsen", "given": "Kristin K." }, "orcid": "0000-0003-1252-4891" }, { "id": "Harrison-F-A", "name": { "family": "Harrison", "given": "Fiona A." }, "orcid": "0000-0003-2992-8024" }, { "id": "Markwardt-C-B", "name": { "family": "Markwardt", "given": "Craig B." }, "orcid": "0000-0001-9803-3879" }, { "id": "An-Hongjun", "name": { "family": "An", "given": "Hongjun" } }, { "id": "Grefenstette-B-W", "name": { "family": "Grefenstette", "given": "Brian W." }, "orcid": "0000-0002-1984-2932" }, { "id": "Bachetti-M", "name": { "family": "Bachetti", "given": "Matteo" }, "orcid": "0000-0002-4576-9337" }, { "id": "Miyasaka-Hiromasa", "name": { "family": "Miyasaka", "given": "Hiromasa" }, "orcid": "0000-0002-8074-4186" }, { "id": "Kitaguchi-Takao", "name": { "family": "Kitaguchi", "given": "Takao" } }, { "id": "Bhalerao-V-B", "name": { "family": "Bhalerao", "given": "Varun" }, "orcid": "0000-0002-6112-7609" }, { "id": "Boggs-S-E", "name": { "family": "Boggs", "given": "Steve E." }, "orcid": "0000-0001-9567-4224" }, { "id": "Christensen-F-E", "name": { "family": "Christensen", "given": "Finn E." }, "orcid": "0000-0001-5679-1946" }, { "id": "Craig-W-W", "name": { "family": "Craig", "given": "William W." } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "F\u00fcrst-F", "name": { "family": "Fuerst", "given": "Felix" }, "orcid": "0000-0003-0388-0560" }, { "id": "Hailey-C-J", "name": { "family": "Hailey", "given": "Charles J." } }, { "id": "Perri-M", "name": { "family": "Perri", "given": "Matteo" } }, { "id": "Puccetti-S", "name": { "family": "Puccetti", "given": "Simonetta" }, "orcid": "0000-0002-2734-7835" }, { "id": "Rana-V-R", "name": { "family": "Rana", "given": "Vikram" }, "orcid": "0000-0003-1703-8796" }, { "id": "Stern-D", "name": { "family": "Stern", "given": "Daniel" }, "orcid": "0000-0003-2686-9241" }, { "id": "Walton-D-J", "name": { "family": "Walton", "given": "Dominic J." }, "orcid": "0000-0001-5819-3552" }, { "id": "Westergaard-N-J", "name": { "family": "Westergaard", "given": "Niels J\u00f8rgen" } }, { "id": "Zhang-W-W", "name": { "family": "Zhang", "given": "William W." }, "orcid": "0000-0002-1426-9698" } ] }, "title": "Calibration of the NuSTAR High-energy Focusing X-ray Telescope", "ispublished": "pub", "full_text_status": "public", "keywords": "instrumentation: detectors \u2013 space vehicles: instruments \u2013 telescopes", "note": "\u00a9 2015 The American Astronomical Society. \n\nReceived 2015 April 7; accepted 2015 August 4; published 2015 September 1. \n\nWe would like to thank the referee for helpful comments and suggestions which helped improve the paper. This work was supported under NASA Contract No. NNG08FD60C, and made use of data from the NuSTAR mission, a project led by the California Institute of Technology, managed by the Jet Propulsion Laboratory, and funded by the National Aeronautics and Space Administration. We thank the NuSTAR Operations, Software and Calibration teams for support with the execution and analysis of these observations. This research has made use of the NuSTAR Data Analysis Software (NuSTARDAS) jointly developed by the ASI Science Data Center (ASDC, Italy) and the California Institute of Technology (USA). \n\nFacilities: CXO, NuSTAR, Swift, Suzaku, and XMM.\n\nPublished - Madsen_2015p8.pdf
Submitted - 1504.01672v2.pdf
", "abstract": "We present the calibration of the Nuclear Spectroscopic Telescope Array (NuSTAR) X-ray satellite. We used the Crab as the primary effective area calibrator and constructed a piece-wise linear spline function to modify the vignetting response. The achieved residuals for all off-axis angles and energies, compared to the assumed spectrum, are typically better than \u00b12% up to 40 keV and 5%\u201310% above due to limited counting statistics. An empirical adjustment to the theoretical two-dimensional point-spread function (PSF) was found using several strong point sources, and no increase of the PSF half-power diameter has been observed since the beginning of the mission. We report on the detector gain calibration, good to 60 eV for all grades, and discuss the timing capabilities of the observatory, which has an absolute timing of \u00b13 ms. Finally, we present cross-calibration results from two campaigns between all the major concurrent X-ray observatories (Chandra, Swift, Suzaku, and XMM-Newton), conducted in 2012 and 2013 on the sources 3C 273 and PKS 2155-304, and show that the differences in measured flux is within ~10% for all instruments with respect to NuSTAR.", "date": "2015-09", "date_type": "published", "publication": "Astrophysical Journal Supplement Series", "volume": "220", "number": "1", "publisher": "American Astronomical Society", "pagerange": "Art. No. 8", "id_number": "CaltechAUTHORS:20151202-143838895", "issn": "0067-0049", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20151202-143838895", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA", "grant_number": "NNG08FD60C" }, { "agency": "NASA/JPL/Caltech" } ] }, "other_numbering_system": { "items": [ { "id": "2015-31", "name": "Space Radiation Laboratory" } ] }, "local_group": { "items": [ { "id": "NuSTAR" }, { "id": "Space-Radiation-Laboratory" } ] }, "doi": "10.1088/0067-0049/220/1/8", "primary_object": { "basename": "Madsen_2015p8.pdf", "url": "https://authors.library.caltech.edu/records/zn6v4-s0p27/files/Madsen_2015p8.pdf" }, "related_objects": [ { "basename": "1504.01672v2.pdf", "url": "https://authors.library.caltech.edu/records/zn6v4-s0p27/files/1504.01672v2.pdf" } ], "resource_type": "article", "pub_year": "2015", "author_list": "Madsen, Kristin K.; Harrison, Fiona A.; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/gv3vq-zt715", "eprint_id": 60087, "eprint_status": "archive", "datestamp": "2023-08-20 07:41:16", "lastmod": "2023-10-24 14:52:37", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Civano-Francesca", "name": { "family": "Civano", "given": "F." }, "orcid": "0000-0002-2115-1137" }, { "id": "Hickox-R-C", "name": { "family": "Hickox", "given": "R. C." }, "orcid": "0000-0003-1468-9526" }, { "id": "Puccetti-S", "name": { "family": "Puccetti", "given": "S." }, "orcid": "0000-0002-2734-7835" }, { "id": "Comastri-A", "name": { "family": "Comastri", "given": "A." }, "orcid": "0000-0003-3451-9970" }, { "id": "Mullaney-J-R", "name": { "family": "Mullaney", "given": "J. R." }, "orcid": "0000-0002-3126-6712" }, { "id": "Zappacosta-L", "name": { "family": "Zappacosta", "given": "L." }, "orcid": "0000-0002-4205-6884" }, { "id": "LaMassa-S-M", "name": { "family": "LaMassa", "given": "S. M." }, "orcid": "0000-0002-5907-3330" }, { "id": "Aird-J-A", "name": { "family": "Aird", "given": "J." }, "orcid": "0000-0003-1908-8463" }, { "id": "Alexander-D-M", "name": { "family": "Alexander", "given": "D. M." }, "orcid": "0000-0002-5896-6313" }, { "id": "Ballantyne-D-R", "name": { "family": "Ballantyne", "given": "D. R." }, "orcid": "0000-0001-8128-6976" }, { "id": "Bauer-F-E", "name": { "family": "Bauer", "given": "F. E." }, "orcid": "0000-0002-8686-8737" }, { "id": "Brandt-W-N", "name": { "family": "Brandt", "given": "W. N." }, "orcid": "0000-0002-0167-2453" }, { "id": "Boggs-S-E", "name": { "family": "Boggs", "given": "S. E." }, "orcid": "0000-0001-9567-4224" }, { "id": "Christensen-F-E", "name": { "family": "Christensen", "given": "F. E." }, "orcid": "0000-0001-5679-1946" }, { "id": "Craig-W-W", "name": { "family": "Craig", "given": "W. W." } }, { "id": "Del-Moro-A", "name": { "family": "Del-Moro", "given": "A." } }, { "id": "Elvis-M", "name": { "family": "Elvis", "given": "M." } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "K." }, "orcid": "0000-0001-5800-5531" }, { "id": "Gandhi-Poshak", "name": { "family": "Gandhi", "given": "P." }, "orcid": "0000-0003-3105-2615" }, { "id": "Grefenstette-B-W", "name": { "family": "Grefenstette", "given": "B. W." }, "orcid": "0000-0002-1984-2932" }, { "id": "Hailey-C-J", "name": { "family": "Hailey", "given": "C. J." } }, { "id": "Harrison-F-A", "name": { "family": "Harrison", "given": "F. A." }, "orcid": "0000-0003-2992-8024" }, { "id": "Lansbury-G-B", "name": { "family": "Lansbury", "given": "G. B." }, "orcid": "0000-0002-5328-9827" }, { "id": "Luo-Bin", "name": { "family": "Luo", "given": "B." }, "orcid": "0000-0002-9036-0063" }, { "id": "Madsen-K-K", "name": { "family": "Madsen", "given": "K. K." }, "orcid": "0000-0003-1252-4891" }, { "id": "Saez-C", "name": { "family": "Saez", "given": "C." } }, { "id": "Stern-D", "name": { "family": "Stern", "given": "D." }, "orcid": "0000-0003-2686-9241" }, { "id": "Treister-E", "name": { "family": "Treister", "given": "E." }, "orcid": "0000-0001-7568-6412" }, { "id": "Urry-C-M", "name": { "family": "Urry", "given": "M. C." }, "orcid": "0000-0002-0745-9792" }, { "id": "Wik-D-R", "name": { "family": "Wik", "given": "D. R." }, "orcid": "0000-0001-8952-676X" }, { "id": "Zhang-William-W", "name": { "family": "Zhang", "given": "W. W." }, "orcid": "0000-0002-1426-9698" } ] }, "title": "The NuSTAR Extragalactic Surveys: Overview and catalog from the COSMOS field", "ispublished": "pub", "full_text_status": "public", "note": "\u00a9 2015. The American Astronomical Society. \n\nReceived 2015 February 27; accepted 2015 June 17; published 2015 August 3.\n\nWe thank the anonymous referee for interesting comments and A. Goulding and M. Rose for useful discussions. This work made use of data from the NuSTAR mission, a project led by the California Institute of Technology, managed by the Jet Propulsion Laboratory, and funded by the National Aeronautics and Space Administration. We thank the NuSTAR Operations, Software and Calibration teams for support with the execution and analysis of these observations. This research has made use of the NuSTAR Data Analysis Software (NUSTARDAS) jointly developed by the ASI Science Data Center (ASDC, Italy) and the California Institute of Technology (USA). We acknowledge support from the NASA grants 11-ADAP11-0218 and GO3-14150C (FC); from the Science and Technology Facilities Council ST/I001573/1 (ADM, DMA); NSF award AST 1008067 (DRB); NuSTAR grant 44A-1092750, NASA ADP grant NNX10AC99G, and the V.M. Willaman Endowment (WNB, BL); CONICYT-Chile grants Basal-CATA PFB-06/2007 (FEB), FONDECYT 1141218 (FEB), and \"EMBIGGEN\" Anillo ACT1101 (FEB, ET); the Ministry of Economy, Development, and Tourism's Millennium Science Initiative through grant IC120009, awarded to The Millennium Institute of Astrophysics, MAS (FEB); the Center of Excellence in Astrophysics and Associated Technologies (PFB 06) and by the FONDECYT regular grant 1120061 (ET); financial support under ASI/INAF contract I/037/12/0 (LZ).\n\nPublished - pdf__1_
Submitted - 1511.04185v1.pdf
", "abstract": "To provide the census of the sources contributing to the X-ray background peak above 10 keV, Nuclear Spectroscopic Telescope Array (NuSTAR) is performing extragalactic surveys using a three-tier \"wedding cake\"\napproach. We present the NuSTAR survey of the COSMOS field, the medium sensitivity, and medium area tier,\ncovering 1.7 deg^2 and overlapping with both Chandra and XMM-Newton data. This survey consists of 121\nobservations for a total exposure of \u223c3 Ms. To fully exploit these data, we developed a new detection strategy,\ncarefully tested through extensive simulations. The survey sensitivity at 20% completeness is 5.9, 2.9, and 6.4 \u00d7\n10^(\u221214) erg cm^(-2) s^(-1) in the 3\u201324, 3\u20138, and 8\u201324 keV bands, respectively. By combining detections in 3 bands, we\nhave a sample of 91 NuSTAR sources with 1042\u20131045.5 erg s^(-1) luminosities and redshift z = 0.04\u20132.5. Thirty-two\nsources are detected in the 8\u201324 keV band with fluxes \u223c100 times fainter than sources detected by Swift-BAT. Of\nthe 91 detections, all but 4 are associated with a Chandra and/or XMM-Newton point-like counterpart. One source\nis associated with an extended lower energy X-ray source. We present the X-ray (hardness ratio and luminosity)\nand optical-to-X-ray properties. The observed fraction of candidate Compton-thick active galactic nuclei measured\nfrom the hardness ratio is between 13%\u201320%. We discuss the spectral properties of NuSTAR J100259+0220.6\n(ID 330) at z = 0.044, with the highest hardness ratio in the entire sample. The measured column density exceeds\n1024 cm^(\u22122), implying the source is Compton-thick. This source was not previously recognized as such without the\n>10 keV data.", "date": "2015-08-01", "date_type": "published", "publication": "Astrophysical Journal", "volume": "808", "number": "2", "publisher": "American Astronomical Society", "pagerange": "Art. No. 185", "id_number": "CaltechAUTHORS:20150907-154658360", "issn": "0004-637X", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20150907-154658360", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA/JPL/Caltech" }, { "agency": "NASA", "grant_number": "11-ADAP11-0218" }, { "agency": "NASA", "grant_number": "GO3-14150C" }, { "agency": "Science and Technology Facilities Council (STFC)", "grant_number": "ST/I001573/1" }, { "agency": "NASA", "grant_number": "AST 1008067" }, { "agency": "Caltech NuSTAR subcontract", "grant_number": "44A-1092750" }, { "agency": "NASA", "grant_number": "NNX10AC99G" }, { "agency": "V. M. Willaman Endowment" }, { "agency": "Iniciativa Cient\u00edfica Milenio del Ministerio de Econom\u00eda, Fomento y Turismo", "grant_number": "IC120009" }, { "agency": "Fondo Nacional de Desarrollo Cient\u00edfico y Tecnol\u00f3gico (FONDECYT)", "grant_number": "1120061" }, { "agency": "Agenzia Spaziale Italiana (ASI)", "grant_number": "I/037/12/0 011/13" } ] }, "other_numbering_system": { "items": [ { "id": "2015-43", "name": "Space Radiation Laboratory" } ] }, "local_group": { "items": [ { "id": "NuSTAR" }, { "id": "Space-Radiation-Laboratory" } ] }, "doi": "10.1088/0004-637X/808/2/185", "primary_object": { "basename": "1511.04185v1.pdf", "url": "https://authors.library.caltech.edu/records/gv3vq-zt715/files/1511.04185v1.pdf" }, "related_objects": [ { "basename": "pdf__1_", "url": "https://authors.library.caltech.edu/records/gv3vq-zt715/files/pdf__1_" } ], "resource_type": "article", "pub_year": "2015", "author_list": "Civano, F.; Hickox, R. C.; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/5r2df-tz987", "eprint_id": 60084, "eprint_status": "archive", "datestamp": "2023-08-20 07:14:17", "lastmod": "2023-10-24 14:52:11", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Hayashida-M", "name": { "family": "Hayashida", "given": "M." } }, { "id": "Nalewajko-K", "name": { "family": "Nalewajko", "given": "K." } }, { "id": "Madejski-G-M", "name": { "family": "Madejski", "given": "G. M." } }, { "id": "Sikora-M", "name": { "family": "Sikora", "given": "M." } }, { "id": "Itoh-R", "name": { "family": "Itoh", "given": "R." } }, { "id": "Ajello-M", "name": { "family": "Ajello", "given": "M." }, "orcid": "0000-0002-6584-1703" }, { "id": "Blandford-R-D", "name": { "family": "Blandford", "given": "R. D." }, "orcid": "0000-0002-1854-5506" }, { "id": "Buson-S", "name": { "family": "Buson", "given": "S." } }, { "id": "Chiang-J", "name": { "family": "Chiang", "given": "J." } }, { "id": "Fukazawa-Yasushi", "name": { "family": "Fukazawa", "given": "Yasushi" } }, { "id": "Furniss-A-K", "name": { "family": "Furniss", "given": "A. K." } }, { "id": "Urry-C-M", "name": { "family": "Urry", "given": "C. M." }, "orcid": "0000-0002-0745-9792" }, { "id": "Hasan-I", "name": { "family": "Hasan", "given": "I." } }, { "id": "Harrison-F-A", "name": { "family": "Harrison", "given": "F. A." }, "orcid": "0000-0003-2992-8024" }, { "id": "Alexander-D-M", "name": { "family": "Alexander", "given": "D. M." }, "orcid": "0000-0002-5896-6313" }, { "id": "Balokovi\u0107-M", "name": { "family": "Balokovi\u0107", "given": "M." }, "orcid": "0000-0003-0476-6647" }, { "id": "Barret-D", "name": { "family": "Barret", "given": "D." }, "orcid": "0000-0002-0393-9190" }, { "id": "Christensen-F-E", "name": { "family": "Christensen", "given": "F. E." }, "orcid": "0000-0001-5679-1946" }, { "id": "Boggs-S-E", "name": { "family": "Boggs", "given": "S. E." }, "orcid": "0000-0001-9567-4224" }, { "id": "Craig-W-W", "name": { "family": "Craig", "given": "W. W." } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "K." }, "orcid": "0000-0001-5800-5531" }, { "id": "Giommi-P", "name": { "family": "Giommi", "given": "P." } }, { "id": "Grefenstette-B-W", "name": { "family": "Grefenstette", "given": "B. W." }, "orcid": "0000-0002-1984-2932" }, { "id": "Hailey-C-J", "name": { "family": "Hailey", "given": "C." } }, { "id": "Hornstrup-A", "name": { "family": "Hornstrup", "given": "A." } }, { "id": "Kitaguchi-Takao", "name": { "family": "Kitaguchi", "given": "T." } }, { "id": "Koglin-J-E", "name": { "family": "Koglin", "given": "J. E." } }, { "id": "Madsen-K-K", "name": { "family": "Madsen", "given": "K. K." }, "orcid": "0000-0003-1252-4891" }, { "id": "Mao-Peter-H", "name": { "family": "Mao", "given": "P. H." } }, { "id": "Miyasaka-Hiromasa", "name": { "family": "Miyasaka", "given": "H." }, "orcid": "0000-0002-8074-4186" }, { "id": "Mori-Kaya", "name": { "family": "Mori", "given": "K." }, "orcid": "0000-0002-9709-5389" }, { "id": "Perri-M", "name": { "family": "Perri", "given": "M." } }, { "id": "Pivovaroff-M-J", "name": { "family": "Pivovaroff", "given": "M. J." } }, { "id": "Puccetti-S", "name": { "family": "Puccetti", "given": "S." }, "orcid": "0000-0002-2734-7835" }, { "id": "Rana-V-R", "name": { "family": "Rana", "given": "V." }, "orcid": "0000-0003-1703-8796" }, { "id": "Stern-D", "name": { "family": "Stern", "given": "D." }, "orcid": "0000-0003-2686-9241" }, { "id": "Tagliaferri-G", "name": { "family": "Tagliaferri", "given": "G." } }, { "id": "Westergaard-N-J", "name": { "family": "Westergaard", "given": "N. J." } }, { "id": "Zhang-W-W", "name": { "family": "Zhang", "given": "W. W." }, "orcid": "0000-0002-1426-9698" }, { "id": "Zoglauer-A-C", "name": { "family": "Zoglauer", "given": "A." } }, { "id": "Gurwell-M-A", "name": { "family": "Gurwell", "given": "M. A." }, "orcid": "0000-0003-0685-3621" }, { "id": "Uemura-Makoto", "name": { "family": "Uemura", "given": "M." } }, { "id": "Akitaya-Hiroshi", "name": { "family": "Akitaya", "given": "H." } }, { "id": "Kawabata-K-S", "name": { "family": "Kawabata", "given": "K. S." } }, { "id": "Kawaguchi-K", "name": { "family": "Kawaguchi", "given": "K." } }, { "id": "Kanda-Yuka", "name": { "family": "Kanda", "given": "Y." } }, { "id": "Moritani-Yuki", "name": { "family": "Moritani", "given": "Y." } }, { "id": "Takaki-K", "name": { "family": "Takaki", "given": "K." } }, { "id": "Ui-T", "name": { "family": "Ui", "given": "T." } }, { "id": "Yoshida-M", "name": { "family": "Yoshida", "given": "M." } }, { "id": "Agarwal-A", "name": { "family": "Agarwal", "given": "A." } }, { "id": "Gupta-A-C", "name": { "family": "Gupta", "given": "A. C." }, "orcid": "0000-0002-9331-4388" } ] }, "title": "Rapid Variability of Blazar 3C 279 During Flaring States in 2013-2014 with Joint Fermi-LAT, NuSTAR, Swift, and Ground-Based Multi-Wavelength Observations", "ispublished": "pub", "full_text_status": "public", "note": "\u00a9 2015 IOP Publishing. \n\nReceived 2015 February 14; Accepted 2015 March 31; Published 2015 July 2. \n\nThe Fermi-LAT Collaboration acknowledges generous ongoing support from a number of agencies and institutes that have supported both the development and the operation of the LAT as well as scientific data analysis. These include the National Aeronautics and Space Administration and the Department of Energy in the United States; the Commissariat \u00e0 l'Energie Atomique and the Centre National de la Recherche Scientifique/Institut National de Physique Nucl\u00e9aire et de Physique des Particules in France; the Agenzia Spaziale Italiana and the Istituto Nazionale di Fisica Nucleare in Italy; the Ministry of Education, Culture, Sports, Science and Technology (MEXT), High Energy Accelerator Research Organization (KEK) and Japan Aerospace Exploration Agency (JAXA) in Japan; and the K. A. Wallenberg Foundation, the Swedish Research Council, and the Swedish National Space Board in Sweden. Additional support for science analysis during the operations phase is gratefully acknowledged from the Istituto Nazionale di Astrofisica in Italy and the Centre National d'\u00c9tudes Spatiales in France. \n\nThis work was partially supported under the NASA contract no. NNG08FD60C, and made use of observations from the NuSTAR mission, a project led by California Institute of Technology, managed by the Jet Propulsion Laboratory, and funded by NASA. We thank the NuSTAR Operations, Software, and Calibration teams for support of the execution and analysis of these observations. This research has made use of the NuSTAR Data Analysis Software (NuSTARDAS) jointly developed by the ASI Science Data Center (ASDC, Italy) and the California Institute of Technology (USA). This research has made use of the XRT Data Analysis Software (XRTDAS) developed under the responsibility of the ASI Science Data Center (ASDC), Italy. The Submillimeter Array is a joint project between the Smithsonian Astrophysical Observatory and the Academia Sinica Institute of Astronomy and Astrophysics and is funded by the Smithsonian Institution and the Academia Sinica. \n\nK.N. was supported by NASA through Einstein Postdoctoral Fellowship grant number PF3\u2013140130 awarded by the Chandra X-ray Center, which is operated by the Smithsonian Astrophysical Observatory for NASA under contract NAS8\u201303060. M.B. acknowledges support from NASA Headquarters under the NASA earth and Space Science Fellowship Program, grant NNX14AQ07H. \n\nFacilities: Fermi (LAT) - Fermi Gamma-Ray Space Telescope (formerly GLAST), NuSTAR - The NuSTAR (Nuclear Spectroscopic Telescope Array) mission, Swift - Swift Gamma-Ray Burst Mission, CTIO: 0.9m - , CTIO: 1.0m - , CTIO: 1.3m - , CTIO: 1.5m - , SMA - SubMillimeter Array\n\nPublished - pdf
", "abstract": "We report the results of a multiband observing campaign on the famous blazar 3C 279 conducted during a phase of increased activity from 2013 December to 2014 April, including first observations of it with NuSTAR. The gamma-ray emission of the source measured by Fermi-LAT showed multiple distinct flares reaching the highest flux level measured in this object since the beginning of the Fermi mission, with F(E > 100 MeV) of 10^(-5) photons cm^(-2) s^(-1), and with a flux-doubling time scale as short as 2 hr. The gamma-ray spectrum during one of the flares was very hard, with an index of Gamma(gamma) = 1.7 +/- 0.1, which is rarely seen in flat-spectrum radio quasars. The lack of concurrent optical variability implies a very high Compton dominance parameter L-gamma/L-syn > 300. Two 1 day NuSTAR observations with accompanying Swift pointings were separated by 2 weeks, probing different levels of source activity. While the 0.5 - 70 keV X-ray spectrum obtained during the first pointing, and fitted jointly with Swift-XRT is well-described by a simple power law, the second joint observation showed an unusual spectral structure: the spectrum softens by Delta Gamma(X) similar or equal to 0.4 at similar to 4 keV. Modeling the broadband spectral energy distribution during this flare with the standard synchrotron plus inverse-Compton model requires: (1) the location of the gamma-ray emitting region is comparable with the broad-line region radius, (2) a very hard electron energy distribution index p similar or equal to 1, (3) total jet power significantly exceeding the accretion-disk luminosity L-j/L-d greater than or similar to 10, and (4) extremely low jet magnetization with L-B/L-j less than or similar to 10^(-4). We also find that single-zone models that match the observed gamma-ray and optical spectra cannot satisfactorily explain the production of X-ray emission.", "date": "2015-07-01", "date_type": "published", "publication": "Astrophysical Journal", "volume": "807", "number": "1", "publisher": "American Astronomical Society", "pagerange": "Art. No. 79", "id_number": "CaltechAUTHORS:20150907-142839153", "issn": "0004-637X", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20150907-142839153", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA" }, { "agency": "Department of Energy (DOE)" }, { "agency": "Commissariat \u00e0 l'Energie Atomique (CEA)" }, { "agency": "Agenzia Spaziale Italiana (ASI)" }, { "agency": "Ministry of Education, Culture, Sports, Science and Technology (MEXT)" }, { "agency": "High Energy Accelerator Research Organization (KEK)" }, { "agency": "Knut and Alice Wallenberg Foundation" }, { "agency": "Swedish Research Council" }, { "agency": "Swedish National Space Board (SNSB)" }, { "agency": "NASA", "grant_number": "NNG08FD60C" }, { "agency": "Caltech" }, { "agency": "JPL" }, { "agency": "NASA Einstein Fellowship", "grant_number": "PF3\u2013140130" }, { "agency": "NASA", "grant_number": "NAS8\u201303060" }, { "agency": "NASA Earth and Space Science Fellowship", "grant_number": "NNX14AQ07H" }, { "agency": "Centre National de la Recherche Scientifique (CNRS)" }, { "agency": "Institut National de Physique Nucl\u00e9aire et de Physique des Particules (IN2P3)" }, { "agency": "Istituto Nazionale di Fisica Nucleare (INFN)" }, { "agency": "Japan Aerospace Exploration Agency (JAXA)" } ] }, "other_numbering_system": { "items": [ { "id": "2015-54", "name": "Space Radiation Laboratory" } ] }, "local_group": { "items": [ { "id": "NuSTAR" }, { "id": "Space-Radiation-Laboratory" } ] }, "doi": "10.1088/0004-637X/807/1/79", "primary_object": { "basename": "pdf", "url": "https://authors.library.caltech.edu/records/5r2df-tz987/files/pdf" }, "resource_type": "article", "pub_year": "2015", "author_list": "Hayashida, M.; Nalewajko, K.; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/p8m84-5fv27", "eprint_id": 60086, "eprint_status": "archive", "datestamp": "2023-08-20 07:14:25", "lastmod": "2023-10-24 14:52:34", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Mullaney-J-R", "name": { "family": "Mullaney", "given": "J. R." }, "orcid": "0000-0002-3126-6712" }, { "id": "Del-Moro-A", "name": { "family": "Del-Moro", "given": "A." } }, { "id": "Aird-J-A", "name": { "family": "Aird", "given": "J." }, "orcid": "0000-0003-1908-8463" }, { "id": "Alexander-D-M", "name": { "family": "Alexander", "given": "D. M." }, "orcid": "0000-0002-5896-6313" }, { "id": "Civano-Francesca", "name": { "family": "Civano", "given": "F. M." }, "orcid": "0000-0002-2115-1137" }, { "id": "Hickox-R-C", "name": { "family": "Hickox", "given": "R. C." }, "orcid": "0000-0003-1468-9526" }, { "id": "Lansbury-G-B", "name": { "family": "Lansbury", "given": "G. B." }, "orcid": "0000-0002-5328-9827" }, { "id": "Ajello-M", "name": { "family": "Ajello", "given": "M." }, "orcid": "0000-0002-6584-1703" }, { "id": "Assef-R-J", "name": { "family": "Assef", "given": "R." }, "orcid": "0000-0002-9508-3667" }, { "id": "Ballantyne-D-R", "name": { "family": "Ballantyne", "given": "D. R." }, "orcid": "0000-0001-8128-6976" }, { "id": "Balokovi\u0107-M", "name": { "family": "Balokovi\u0107", "given": "M." }, "orcid": "0000-0003-0476-6647" }, { "id": "Bauer-F-E", "name": { "family": "Bauer", "given": "F. E." }, "orcid": "0000-0002-8686-8737" }, { "id": "Brandt-W-N", "name": { "family": "Brandt", "given": "W. N." }, "orcid": "0000-0002-0167-2453" }, { "id": "Boggs-S-E", "name": { "family": "Boggs", "given": "S. E." }, "orcid": "0000-0001-9567-4224" }, { "id": "Brightman-M", "name": { "family": "Brightman", "given": "M." }, "orcid": "0000-0002-8147-2602" }, { "id": "Christensen-F-E", "name": { "family": "Christensen", "given": "F. E." }, "orcid": "0000-0001-5679-1946" }, { "id": "Comastri-A", "name": { "family": "Comastri", "given": "A." }, "orcid": "0000-0003-3451-9970" }, { "id": "Craig-W-W", "name": { "family": "Craig", "given": "W. W." } }, { "id": "Elvis-M", "name": { "family": "Elvis", "given": "M." } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "K." }, "orcid": "0000-0001-5800-5531" }, { "id": "Gandhi-Poshak", "name": { "family": "Gandhi", "given": "P." }, "orcid": "0000-0003-3105-2615" }, { "id": "Grefenstette-B-W", "name": { "family": "Grefenstette", "given": "B. W." }, "orcid": "0000-0002-1984-2932" }, { "id": "Hailey-C-J", "name": { "family": "Hailey", "given": "C. J." } }, { "id": "Harrison-F-A", "name": { "family": "Harrison", "given": "F. A." }, "orcid": "0000-0003-2992-8024" }, { "id": "Koss-M-J", "name": { "family": "Koss", "given": "M." }, "orcid": "0000-0002-7998-9581" }, { "id": "LaMassa-S-M", "name": { "family": "LaMassa", "given": "S. M." }, "orcid": "0000-0002-5907-3330" }, { "id": "Luo-Bin", "name": { "family": "Luo", "given": "Bin" }, "orcid": "0000-0002-9036-0063" }, { "id": "Madsen-K-K", "name": { "family": "Madsen", "given": "K. K." }, "orcid": "0000-0003-1252-4891" }, { "id": "Puccetti-S", "name": { "family": "Puccetti", "given": "S." }, "orcid": "0000-0002-2734-7835" }, { "id": "Saez-C", "name": { "family": "Saez", "given": "C." } }, { "id": "Stern-D", "name": { "family": "Stern", "given": "D." }, "orcid": "0000-0003-2686-9241" }, { "id": "Treister-E", "name": { "family": "Treister", "given": "E." }, "orcid": "0000-0001-7568-6412" }, { "id": "Urry-C-M", "name": { "family": "Urry", "given": "C. M." }, "orcid": "0000-0002-0745-9792" }, { "id": "Wik-D-R", "name": { "family": "Wik", "given": "D. R." }, "orcid": "0000-0001-8952-676X" }, { "id": "Zappacosta-L", "name": { "family": "Zappacosta", "given": "L." }, "orcid": "0000-0002-4205-6884" }, { "id": "Zhang-W-W", "name": { "family": "Zhang", "given": "W. W." }, "orcid": "0000-0002-1426-9698" } ] }, "title": "The NuSTAR Extragalactic Surveys: Initial Results and Catalog from the Extended Chandra Deep Field South", "ispublished": "pub", "full_text_status": "public", "note": "\u00a9 2015. The American Astronomical Society. \n\nReceived 2015 March 2; accepted 2015 June 19; published 2015 August 3. \n\nWe thank the anonymous referee for their careful reading of the manuscript and comments that improved the clarity of the text. This work made use of data from the NuSTAR mission, a project led by the California Institute of Technology, managed by the Jet Propulsion Laboratory, and funded by the National Aeronautics and Space Administration. We thank the NuSTAR Operations, Software, and Calibration teams for support with the execution and analysis of these observations. This research has made use of the NuSTAR Data Analysis Software (NUSTARDAS), jointly developed by the ASI Science Data Center (ASDC, Italy) and the California Institute of Technology (USA). A.D.M. and D.M.A. gratefully acknowledge financial support from the Science and Technology Facilities Council (ST/I001573/1). J.A. acknowledges support from a COFUND Junior Research Fellowship from the Institute of Advanced Study, Durham University, and ERC Advanced Grant FEEDBACK at the University of Cambridge. F.M.C. acknowledges support from NASA grants 11-ADAP11-0218 and GO3-14150C. D.R.B. is supported in part by NSF award AST 1008067. W.N.B. and B.L. thank NuSTAR grant 44A-1092750, NASA ADP grant NNX10AC99G, and the V. M. Willaman Endowment. We acknowledge support from CONICYT-Chile grants Basal-CATA PFB-06/2007 (FEB), FONDECYT 1141218 (FEB) and 1120061 (ET), and \"EMBIGGEN\" Anillo ACT1101 (FEB, ET); and the Ministry of Economy, Development, and Tourism's Millennium Science Initiative through grant IC120009, awarded to The Millennium Institute of Astrophysics, MAS (FEB). Support for the work of E.T. was also provided by the Center of Excellence in Astrophysics and Associated Technologies (PFB 06). A.C., S.P., and L.Z. acknowledge support from the ASI/INAF grant I/037/12/0 011/13. A.C. acknowledges the Caltech Kingsley visitor program. M.B. acknowledges support from NASA Headquarters under the NASA Earth and Space Science Fellowship Program, grant NNX14AQ07H.\n\nPublished - document.pdf
Submitted - 1511.04186v1.pdf
", "abstract": "We present the initial results and the source catalog from the Nuclear Spectroscopic Telescope Array (NuSTAR) survey of the Extended Chandra Deep Field South (hereafter, ECDFS)\u2014currently the deepest contiguous component of the NuSTAR extragalactic survey program. The survey covers the full \u224830' \u00d7 30' area of this field to a maximum depth of \u2248360 ks (\u2248 220 ks when corrected for vignetting at 3\u201324 keV), reaching sensitivity limits of \u2248 1.3 X 10^(-14) erg s^(-1) cm^(-2) (3\u20138 keV), \u2248 3.4 X 10^ s^(-1)}, cm^(-2) (8\u201324 keV), and ~3 X 10^(-14) erg, s^(-1) cm^(-2) (3\u201324 keV). A total of 54 sources are detected over the full field, although five of these are found to lie below our significance threshold once contaminating flux from neighboring (i.e., blended) sources is taken into account. Of the remaining 49 that are significant, 19 are detected in the 8\u201324 keV band. The 8\u201324 to 3\u20138 keV band ratios of the 12 sources that are detected in both bands span the range 0.39\u20131.7, corresponding to a photon index range of \u0393 \u2248 0.5-2.3, with a median photon index of \u0393[bar]} = 1.70 \u00b1 0.52. The redshifts of the 49 sources in our main sample span the range z = 0.21-2.7, and their rest-frame 10\u201340 keV luminosities (derived from the observed 8\u201324 keV fluxes) span the range L_(10-40 keV) \u2248 (0.7-300) X 10^(43) erg s^(-1), sampling below the \"knee\" of the X-ray luminosity function out to sim 0.8-1. Finally, we identify one NuSTAR source that has neither a Chandra nor an XMM-Newton counterpart, but that shows evidence of nuclear activity at infrared wavelengths and thus may represent a genuine, new X-ray source detected by NuSTAR in the ECDFS.", "date": "2015-07-01", "date_type": "published", "publication": "Astrophysical Journal", "volume": "808", "number": "2", "publisher": "American Astronomical Society", "pagerange": "Art. No. 184", "id_number": "CaltechAUTHORS:20150907-151739240", "issn": "0004-637X", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20150907-151739240", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA/JPL/Caltech" }, { "agency": "Science and Technology Facilities Council (STFC)", "grant_number": "ST/I001573/1" }, { "agency": "Durham University" }, { "agency": "European Research Council (ERC)" }, { "agency": "NASA", "grant_number": "11-ADAP11-0218" }, { "agency": "NASA", "grant_number": "NNX10AC99G" }, { "agency": "V. M. Willaman Endowment" }, { "agency": "Caltech NuSTAR subcontract", "grant_number": "44A-1092750" }, { "agency": "Basal-CATA", "grant_number": "PFB-06/2007" }, { "agency": "Fondo Nacional de Desarrollo Cient\u00edfico y Tecnol\u00f3gico (FONDECYT)", "grant_number": "1141218" }, { "agency": "Comisi\u00f3n Nacional de Investigaci\u00f3n Cient\u00edfica y Tecnol\u00f3gica (CONICYT)", "grant_number": "ACT1101" }, { "agency": "Iniciativa Cient\u00edfica Milenio del Ministerio de Econom\u00eda, Fomento y Turismo", "grant_number": "IC120009" }, { "agency": "Center of Excellence in Astrophysics and Associated Technologies (CATA)" }, { "agency": "Agenzia Spaziale Italiana (ASI)", "grant_number": "I/037/12/0 011/13" }, { "agency": "NASA Earth and Space Science Fellowship", "grant_number": "NNX14AQ07H" }, { "agency": "Caltech Kingsley Foundation Fellowship" } ] }, "other_numbering_system": { "items": [ { "id": "2015-44", "name": "Space Radiation Laboratory" } ] }, "local_group": { "items": [ { "id": "NuSTAR" }, { "id": "Space-Radiation-Laboratory" } ] }, "doi": "10.1088/0004-637X/808/2/184", "primary_object": { "basename": "1511.04186v1.pdf", "url": "https://authors.library.caltech.edu/records/p8m84-5fv27/files/1511.04186v1.pdf" }, "related_objects": [ { "basename": "document.pdf", "url": "https://authors.library.caltech.edu/records/p8m84-5fv27/files/document.pdf" } ], "resource_type": "article", "pub_year": "2015", "author_list": "Mullaney, J. R.; Del-Moro, A.; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/6mm5v-vd778", "eprint_id": 57542, "eprint_status": "archive", "datestamp": "2023-08-20 06:13:38", "lastmod": "2023-10-23 17:31:15", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Boggs-S-E", "name": { "family": "Boggs", "given": "S. E." }, "orcid": "0000-0001-9567-4224" }, { "id": "Harrison-F-A", "name": { "family": "Harrison", "given": "F. A." }, "orcid": "0000-0003-2992-8024" }, { "id": "Miyasaka-Hiromasa", "name": { "family": "Miyasaka", "given": "H." }, "orcid": "0000-0002-8074-4186" }, { "id": "Grefenstette-B-W", "name": { "family": "Grefenstette", "given": "B. W." }, "orcid": "0000-0002-1984-2932" }, { "id": "Forster-K", "name": { "family": "Forster", "given": "K." }, "orcid": "0000-0001-5800-5531" }, { "id": "Madsen-K-K", "name": { "family": "Madsen", "given": "K. K." }, "orcid": "0000-0003-1252-4891" }, { "id": "Mao-Peter-H", "name": { "family": "Mao", "given": "P. H." } }, { "id": "Rana-V-R", "name": { "family": "Rana", "given": "V." }, "orcid": "0000-0003-1703-8796" } ] }, "title": "^(44)Ti gamma-ray emission lines from SN1987A reveal an asymmetric explosion", "ispublished": "pub", "full_text_status": "public", "note": "\u00a9 2015 American Association for the Advancement of Science.\n\nReceived 3 November 2014; accepted 8 April 2015.\n\nThis work was supported under NASA Contract no. NNG08FD60C and made use of data from the NuSTAR mission, a project led by the California Institute of Technology, managed by the Jet Propulsion Laboratory, and funded by the National Aeronautics and Space Administration. We thank the NuSTAR Operations, Software, and Calibration teams for support with the execution and analysis of these observations. This research has made use of the NuSTAR Data Analysis Software (NuSTARDAS) jointly developed by the ASI Science Data Center (ASDC, Italy) and the California Institute of Technology (USA). D.B. acknowledges funding from the French Space Agency (CNES). T.K. was supported by Japan Society for the Promotion of Science Grant-in-Aid for Young Scientists (B) (no. 24740185). N.J.W. acknowledges funding from the Technical University of Denmark. NuSTAR data are accessible from NASA's High Energy Astrophysics Science Archive Research Center (HEASARC, http://heasarc.gsfc.nasa.gov/).\n\nSupplemental Material - Boggs.SM.pdf
", "abstract": "In core-collapse supernovae, titanium-44 (^(44)Ti) is produced in the innermost ejecta, in the layer of material directly on top of the newly formed compact object. As such, it provides a direct probe of the supernova engine. Observations of supernova 1987A (SN1987A) have resolved the 67.87- and 78.32\u2013kilo\u2013electron volt emission lines from decay of ^(44)Ti produced in the supernova explosion. These lines are narrow and redshifted with a Doppler velocity of ~700 kilometers per second, direct evidence of large-scale asymmetry in the explosion.", "date": "2015-05-08", "date_type": "published", "publication": "Science", "volume": "348", "number": "6235", "publisher": "American Association for the Advancement of Science", "pagerange": "670-671", "id_number": "CaltechAUTHORS:20150514-152641080", "issn": "0036-8075", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20150514-152641080", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA", "grant_number": "NNG08FD60C" }, { "agency": "NASA/JPL/Caltech" }, { "agency": "Centre National d'\u00c9tudes Spatiales (CNES)" }, { "agency": "Japan Society for the Promotion of Science (JSPS)", "grant_number": "24740185" }, { "agency": "Technical University of Denmark" } ] }, "other_numbering_system": { "items": [ { "id": "2015-60", "name": "Space Radiation Laboratory" } ] }, "local_group": { "items": [ { "id": "NuSTAR" }, { "id": "Space-Radiation-Laboratory" } ] }, "doi": "10.1126/science.aaa2259", "primary_object": { "basename": "Boggs.SM.pdf", "url": "https://authors.library.caltech.edu/records/6mm5v-vd778/files/Boggs.SM.pdf" }, "resource_type": "article", "pub_year": "2015", "author_list": "Boggs, S. E.; Harrison, F. A.; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/sn14w-hgk17", "eprint_id": 56965, "eprint_status": "archive", "datestamp": "2023-08-22 15:12:04", "lastmod": "2023-10-23 16:11:11", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Grefenstette-B-W", "name": { "family": "Grefenstette", "given": "Brian W." }, "orcid": "0000-0002-1984-2932" }, { "id": "Reynolds-S-P", "name": { "family": "Reynolds", "given": "Stephen P." } }, { "id": "Harrison-F-A", "name": { "family": "Harrison", "given": "Fiona A." }, "orcid": "0000-0003-2992-8024" }, { "id": "Humensky-T-B", "name": { "family": "Humensky", "given": "T. Brian" } }, { "id": "Boggs-S-E", "name": { "family": "Boggs", "given": "Steven E." }, "orcid": "0000-0001-9567-4224" }, { "id": "Fryer-C-L", "name": { "family": "Fryer", "given": "Chris L." }, "orcid": "0000-0003-2624-0056" }, { "id": "Delaney-T", "name": { "family": "Delaney", "given": "Tracey" } }, { "id": "Madsen-K-K", "name": { "family": "Madsen", "given": "Kristin K." }, "orcid": "0000-0003-1252-4891" }, { "id": "Miyasaka-Hiromasa", "name": { "family": "Miyasaka", "given": "Hiromasa" }, "orcid": "0000-0002-8074-4186" }, { "id": "Wik-D-R", "name": { "family": "Wik", "given": "Daniel R." }, "orcid": "0000-0001-8952-676X" }, { "id": "Zoglauer-A-C", "name": { "family": "Zoglauer", "given": "Andreas" } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Kitaguchi-Takao", "name": { "family": "Kitaguchi", "given": "Takao" } }, { "id": "Lopez-L-A", "name": { "family": "Lopez", "given": "Laura" }, "orcid": "0000-0002-1790-3148" }, { "id": "Nynka-M", "name": { "family": "Nynka", "given": "Melania" }, "orcid": "0000-0002-3310-1946" }, { "id": "Christensen-F-E", "name": { "family": "Christensen", "given": "Finn E." }, "orcid": "0000-0001-5679-1946" }, { "id": "Craig-W-W", "name": { "family": "Craig", "given": "William W." } }, { "id": "Hailey-C-J", "name": { "family": "Hailey", "given": "Charles J." } }, { "id": "Stern-D", "name": { "family": "Stern", "given": "Daniel" }, "orcid": "0000-0003-2686-9241" }, { "id": "Zhang-W-W", "name": { "family": "Zhang", "given": "William W." }, "orcid": "0000-0002-1426-9698" } ] }, "title": "Locating the Most Energetic Electrons in Cassiopeia A", "ispublished": "pub", "full_text_status": "public", "keywords": "acceleration of particles; ISM: individual objects (Cassiopeia A); ISM: supernova remnants; radiation mechanisms: non-thermal; X-rays: ISM", "note": "\u00a9 2015 American Astronomical Society. \n\nReceived 2014 September 16; accepted 2015 January 14; published 2015 March 16. \n\nB.G. thanks Una Hwang for the Chandra 4\u20136 keV band image. This work was supported under NASA contract NNG08FD60C and made use of data from the NuSTAR mission, a project led by the California Institute of Technology, managed by the Jet Propulsion Laboratory, and funded by NASA. We thank the NuSTAR Operations, Software, and Calibration teams for support with the execution and analysis of these observations. This research has made use of the NuSTAR Data Analysis Software (NuSTARDAS), jointly developed by the ASI Science Data Center (ASDC, Italy) and the California Institute of Technology (USA). \n\nFacilities: Chandra, Fermi, HESS, NuSTAR, VERITAS, VLA\n\nPublished - 0004-637X_802_1_15.pdf
Submitted - 1502.03024v1.pdf
", "abstract": "We present deep (>2.4 Ms) observations of the Cassiopeia A supernova remnant with NuSTAR, which operates in the 3\u201379 keV bandpass and is the first instrument capable of spatially resolving the remnant above 15 keV. We find that the emission is not entirely dominated by the forward shock nor by a smooth \"bright ring\" at the reverse shock. Instead we find that the >15 keV emission is dominated by knots near the center of the remnant and dimmer filaments near the remnant's outer rim. These regions are fit with unbroken power laws in the 15\u201350 keV bandpass, though the central knots have a steeper (\u0393 ~ \u22123.35) spectrum than the outer filaments (\u0393 ~ \u22123.06). We argue this difference implies that the central knots are located in the 3-D interior of the remnant rather than at the outer rim of the remnant and seen in the center due to projection effects. The morphology of >15 keV emission does not follow that of the radio emission nor that of the low energy (<12 keV) X-rays, leaving the origin of the >15 keV emission an open mystery. Even at the forward shock front we find less steepening of the spectrum than expected from an exponentially cut off electron distribution with a single cutoff energy. Finally, we find that the GeV emission is not associated with the bright features in the NuSTAR band while the TeV emission may be, suggesting that both hadronic and leptonic emission mechanisms may be at work.", "date": "2015-03-20", "date_type": "published", "publication": "Astrophysical Journal", "volume": "802", "number": "1", "publisher": "American Astronomical Society", "pagerange": "Art. No. 15", "id_number": "CaltechAUTHORS:20150424-140813411", "issn": "0004-637X", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20150424-140813411", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA", "grant_number": "NNG08FD60C" }, { "agency": "NASA/Caltech/JPL" } ] }, "local_group": { "items": [ { "id": "NuSTAR" }, { "id": "Space-Radiation-Laboratory" } ] }, "doi": "10.1088/0004-637X/802/1/15", "primary_object": { "basename": "0004-637X_802_1_15.pdf", "url": "https://authors.library.caltech.edu/records/sn14w-hgk17/files/0004-637X_802_1_15.pdf" }, "related_objects": [ { "basename": "1502.03024v1.pdf", "url": "https://authors.library.caltech.edu/records/sn14w-hgk17/files/1502.03024v1.pdf" } ], "resource_type": "article", "pub_year": "2015", "author_list": "Grefenstette, Brian W.; Reynolds, Stephen P.; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/7p5fg-h6r29", "eprint_id": 51762, "eprint_status": "archive", "datestamp": "2023-08-20 02:25:55", "lastmod": "2024-01-13 16:12:29", "type": "book_section", "metadata_visibility": "show", "creators": { "items": [ { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Harrison-F-A", "name": { "family": "Harrison", "given": "Fiona A." }, "orcid": "0000-0003-2992-8024" }, { "id": "Dodd-S-R", "name": { "family": "Dodd", "given": "Suzanne R." } }, { "id": "Stern-D", "name": { "family": "Stern", "given": "Daniel K." }, "orcid": "0000-0003-2686-9241" }, { "id": "Miyasaka-Hiromasa", "name": { "family": "Miyasaka", "given": "Hiromasa" }, "orcid": "0000-0002-8074-4186" }, { "id": "Madsen-K-K", "name": { "family": "Madsen", "given": "Kristin K." }, "orcid": "0000-0003-1252-4891" }, { "id": "Grefenstette-B-W", "name": { "family": "Grefenstette", "given": "Brian W." }, "orcid": "0000-0002-1984-2932" }, { "id": "Markwardt-C-B", "name": { "family": "Markwardt", "given": "Craig B." }, "orcid": "0000-0001-9803-3879" }, { "id": "Craig-W-W", "name": { "family": "Craig", "given": "William W." } }, { "id": "Marshall-F-E", "name": { "family": "Marshall", "given": "Francis E." } } ] }, "title": "NuSTAR observatory science operations: on-orbit acclimation", "ispublished": "unpub", "full_text_status": "public", "keywords": "NuSTAR, NASA small explorer, X-ray optics, CZT detectors, Science Operations, Metrology", "note": "\u00a9 2014 SPIE. \n\nDate Published: 6 August 2014. \n\nThis work was supported under NASA contract No. NNG08FD60C, and made use of data from the NuSTAR mission, a project led by the California Institute of Technology, managed by the Jet Propulsion Laboratory, and funded by the National Aeronautics and Space Administration. We thank the NuSTAR operations, Software and Calibration teams for support with the execution and analysis of these observations. This research has made use of the NuSTAR Data Analysis Software (NuSTARDAS) jointly developed by the ASI Science Data Center (ASDC, Italy) and the California Institute of\nTechnology (USA).\n\nPublished - Forster_2014p91490R.pdf
", "abstract": "The Nuclear Spectroscopic Telescope Array (NuSTAR) is the first focusing high energy (3-79 keV) X-ray observatory. The NuSTAR project is led by Caltech, which hosts the Science Operations Center (SOC), with mission operations managed by UCB Space Sciences Laboratory. We present an overview of NuSTAR science operations and describe the on-orbit performance of the observatory. The SOC is enhancing science operations to serve the community with a guest observing program beginning in 2015. We present some of the challenges and approaches taken by the SOC to operating a full service space observatory that maximizes the scientific return from the mission.", "date": "2014-08-06", "date_type": "published", "publisher": "Society of Photo-Optical Instrumentation Engineers (SPIE)", "place_of_pub": "Bellingham, WA", "pagerange": "Art. No. 91490R", "id_number": "CaltechAUTHORS:20141114-102829066", "isbn": "978-0-8194-9617-1", "book_title": "Observatory Operations - Strategies, Processes, and Systems V", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20141114-102829066", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA", "grant_number": "NNG08FD60C" }, { "agency": "NASA/JPL/Caltech" } ] }, "local_group": { "items": [ { "id": "NuSTAR" }, { "id": "Space-Radiation-Laboratory" } ] }, "contributors": { "items": [ { "id": "Peck-A-B", "name": { "family": "Peck", "given": "Alison B." } }, { "id": "Benn-C-R", "name": { "family": "Benn", "given": "Chris R." } }, { "id": "Seaman-R-L", "name": { "family": "Seaman", "given": "Robert L." } } ] }, "doi": "10.1117/12.2056916", "primary_object": { "basename": "Forster_2014p91490R.pdf", "url": "https://authors.library.caltech.edu/records/7p5fg-h6r29/files/Forster_2014p91490R.pdf" }, "resource_type": "book_section", "pub_year": "2014", "author_list": "Forster, Karl; Harrison, Fiona A.; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/ewars-w4e12", "eprint_id": 58269, "eprint_status": "archive", "datestamp": "2023-08-20 01:59:39", "lastmod": "2024-01-13 16:22:16", "type": "book_section", "metadata_visibility": "show", "creators": { "items": [ { "id": "Kitaguchi-Takao", "name": { "family": "Kitaguchi", "given": "Takao" } }, { "id": "Bhalerao-V-B", "name": { "family": "Bhalerao", "given": "Varun" }, "orcid": "0000-0002-6112-7609" }, { "id": "Cook-W-R", "name": { "family": "Cook", "given": "W. Rick" } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Grefenstette-B-W", "name": { "family": "Grefenstette", "given": "Brian W." }, "orcid": "0000-0002-1984-2932" }, { "id": "Harrison-F-A", "name": { "family": "Harrison", "given": "Fiona A." }, "orcid": "0000-0003-2992-8024" }, { "id": "Madsen-K-K", "name": { "family": "Madsen", "given": "Kristin K." }, "orcid": "0000-0003-1252-4891" }, { "id": "Mao-Peter-H", "name": { "family": "Mao", "given": "Peter H." } }, { "id": "Miyasaka-Hiromasa", "name": { "family": "Miyasaka", "given": "Hiromasa" }, "orcid": "0000-0002-8074-4186" }, { "id": "Rana-V-R", "name": { "family": "Rana", "given": "Vikram R." }, "orcid": "0000-0003-1703-8796" } ] }, "title": "Inflight performance and calibration of the NuSTAR CdZnTe pixel detectors", "ispublished": "unpub", "full_text_status": "public", "keywords": "NuSTAR, CdZnTe, High-energy X-rays", "note": "\u00a9 2014 Society of Photo-Optical Instrumentation Engineers (SPIE). Date Published: 24 July 2014.\n\nThis work was supported under NASA Contract No. NNG08FD60C, and made use of data from the NuSTAR mission, a project led by the California Institute of Technology, managed by the Jet Propulsion Laboratory, and funded by the National Aeronautics and Space Administration. We thank the NuSTAR Operations, Software and Calibration teams for support with the execution and analysis of these observations. This research has made use of the NuSTAR Data Analysis Software (NuSTARDAS) jointly developed by the ASI Science Data Center (ASDC, Italy) and the California Institute of Technology (USA). T.K. was supported by Japan Society for the Promotion of Science (JSPS) Grant-in-Aid for Young Scientists (B) (No. 24740185).\n\nPublished - Kitaguchi_2014p91441R.pdf
", "abstract": "The Nuclear Spectroscopic Telescope Array (NuSTAR) satellite is a NASA Small Explorer mission designed to operate the first focusing high-energy X-ray (3-79 keV) telescope in orbit. Since the launch in June 2012, all the NuSTAR components have been working normally. The focal plane module is equipped with an 155Eu radioactive source to irradiate the CdZnTe pixel detectors for independent calibration separately from optics. The inflight spectral calibration of the CdZnTe detectors is performed with the onboard 155Eu source. The derived detector performance agrees well with ground-measured data. The in-orbit detector background rate is stable and the lowest among past high-energy X-ray instruments.", "date": "2014-07-24", "date_type": "published", "publisher": "Society of Photo-Optical Instrumentation Engineers (SPIE)", "place_of_pub": "Bellingham, WA", "pagerange": "Art. No. 91441R", "id_number": "CaltechAUTHORS:20150616-083335514", "isbn": "978-0-8194-9612-6", "book_title": "Space Telescopes and Instrumentation - Ultraviolet to Gamma Ray", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20150616-083335514", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA", "grant_number": "NNG08FD60C" }, { "agency": "NASA/Caltech/JPL" }, { "agency": "Japan Society for the Promotion of Science (JSPS)", "grant_number": "24740185" } ] }, "other_numbering_system": { "items": [ { "id": "2014-42", "name": "Space Radiation Laboratory" } ] }, "local_group": { "items": [ { "id": "NuSTAR" }, { "id": "Space-Radiation-Laboratory" } ] }, "contributors": { "items": [ { "id": "Takahashi-Tadayuki", "name": { "family": "Takahashi", "given": "Tadayuki" } }, { "id": "den-Herder-J-W-A", "name": { "family": "den Herder", "given": "Jan-Willem A." } }, { "id": "Bautz-M-W", "name": { "family": "Bautz", "given": "Mark" } } ] }, "corp_creators": { "items": [ "NuSTAR Team" ] }, "doi": "10.1117/12.2057342", "primary_object": { "basename": "Kitaguchi_2014p91441R.pdf", "url": "https://authors.library.caltech.edu/records/ewars-w4e12/files/Kitaguchi_2014p91441R.pdf" }, "resource_type": "book_section", "pub_year": "2014", "author_list": "Kitaguchi, Takao; Bhalerao, Varun; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/6zz9y-j0h75", "eprint_id": 84186, "eprint_status": "archive", "datestamp": "2023-08-20 01:59:57", "lastmod": "2024-01-14 19:15:57", "type": "book_section", "metadata_visibility": "show", "creators": { "items": [ { "id": "Madsen-K-K", "name": { "family": "Madsen", "given": "Kristin K." }, "orcid": "0000-0003-1252-4891" }, { "id": "Harrison-F-A", "name": { "family": "Harrison", "given": "Fiona A." }, "orcid": "0000-0003-2992-8024" }, { "id": "An-Hongjun", "name": { "family": "An", "given": "Hongjun" } }, { "id": "Boggs-S-E", "name": { "family": "Boggs", "given": "Steven E." }, "orcid": "0000-0001-9567-4224" }, { "id": "Christensen-F-E", "name": { "family": "Christensen", "given": "Finn E." }, "orcid": "0000-0001-5679-1946" }, { "id": "Cook-R", "name": { "family": "Cook", "given": "Rick" } }, { "id": "Craig-W-W", "name": { "family": "Craig", "given": "William W." } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "F\u00fcrst-F", "name": { "family": "Fuerst", "given": "Felix" }, "orcid": "0000-0003-0388-0560" }, { "id": "Grefenstette-B-W", "name": { "family": "Grefenstette", "given": "Brian" }, "orcid": "0000-0002-1984-2932" }, { "id": "Hailey-C-J", "name": { "family": "Hailey", "given": "Charles J." } }, { "id": "Kitaguchi-Takao", "name": { "family": "Kitaguchi", "given": "Takao" } }, { "id": "Markwardt-C-B", "name": { "family": "Markwardt", "given": "Craig" }, "orcid": "0000-0001-9803-3879" }, { "id": "Mao-Peter-H", "name": { "family": "Mao", "given": "Peter" } }, { "id": "Miyasaka-Hiromasa", "name": { "family": "Miyasaka", "given": "Hiromasa" }, "orcid": "0000-0002-8074-4186" }, { "id": "Rana-V-R", "name": { "family": "Rana", "given": "Vikram" }, "orcid": "0000-0003-1703-8796" }, { "id": "Stern-D", "name": { "family": "Stern", "given": "Daniel K." }, "orcid": "0000-0003-2686-9241" }, { "id": "Zhang-W-W", "name": { "family": "Zhang", "given": "William W." }, "orcid": "0000-0002-1426-9698" }, { "id": "Zoglauer-A-C", "name": { "family": "Zoglauer", "given": "Andreas" } }, { "id": "Walton-D-J", "name": { "family": "Walton", "given": "Dominic" }, "orcid": "0000-0001-5819-3552" }, { "id": "Westergaard-N-J", "name": { "family": "Westergaard", "given": "Niels J." } } ] }, "title": "The nuclear spectroscopic telescope array (NuSTAR) high-energy X-ray mission", "ispublished": "unpub", "full_text_status": "public", "keywords": "NuSTAR, X-ray optics, CZT", "note": "\u00a9 2014 SPIE. \n\nThis work was supported under NASA Contract No. NNG08FD60C, and made use of data from the NuSTAR mission, a project led by the California Institute of Technology, managed by the Jet Propulsion Laboratory, and funded by the National Aeronautics and Space Administration. We thank the NuSTAR Operations, Software and Calibration teams for support with the execution and analysis of these observations. This research has made use of the NuSTAR Data Analysis Software (NuSTARDAS) jointly developed by the ASI Science Data Center (ASDC, Italy) and the California Institute of Technology (USA).\n\nPublished - 91441P.pdf
", "abstract": "The Nuclear Spectroscopic Telescope Array (NuSTAR) mission was launched on 2012 June 13 and is the first focusing high-energy X-ray telescope in orbit operating above ~10 keV. NuSTAR flies two co-aligned Wolter-I conical approximation X-ray optics, coated with Pt/C and W/Si multilayers, and combined with a focal length of 10.14 meters this enables operation from 3-79 keV. The optics focus onto two focal plane arrays, each consisting of 4 CdZnTe pixel detectors, for a field of view of 12.5 arcminutes. The inherently low background associated with concentrating the X-ray light enables NuSTAR to probe the hard X-ray sky with a more than 100-fold improvement in sensitivity, and with an effective point spread function FWHM of 18 arcseconds (HPD ~1), NuSTAR provides a leap of improvement in resolution over the collimated or coded mask instruments that have operated in this bandpass. We present in-orbit performance details of the observatory and highlight important science results from the first two years of the mission.", "date": "2014-07-24", "date_type": "published", "publisher": "Society of Photo-Optical Instrumentation Engineers", "place_of_pub": "Bellingham, WA", "pagerange": "Art. No. 91441P", "id_number": "CaltechAUTHORS:20180109-101045374", "isbn": "9780819496126", "book_title": "Space Telescopes and Instrumentation 2014: Ultraviolet to Gamma Ray", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20180109-101045374", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA", "grant_number": "NNG08FD60C" }, { "agency": "NASA/JPL/Caltech" } ] }, "local_group": { "items": [ { "id": "NuSTAR" }, { "id": "Space-Radiation-Laboratory" } ] }, "contributors": { "items": [ { "id": "Takahashi-Tadayuki", "name": { "family": "Takahashi", "given": "Tadayuki" } }, { "id": "den-Herder-J-W-A", "name": { "family": "den Herder", "given": "Jan-Willem A." } }, { "id": "Bautz-M", "name": { "family": "Bautz", "given": "Mark" } } ] }, "doi": "10.1117/12.2056643", "primary_object": { "basename": "91441P.pdf", "url": "https://authors.library.caltech.edu/records/6zz9y-j0h75/files/91441P.pdf" }, "resource_type": "book_section", "pub_year": "2014", "author_list": "Madsen, Kristin K.; Harrison, Fiona A.; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/2y8zz-4pj06", "eprint_id": 48288, "eprint_status": "archive", "datestamp": "2023-08-20 01:19:49", "lastmod": "2023-10-17 18:40:29", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Kazin-E-A", "name": { "family": "Kazin", "given": "Eyal A." } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted K." } } ] }, "title": "The WiggleZ Dark Energy Survey: improved distance measurements to z = 1 with reconstruction of the baryonic acoustic feature", "ispublished": "pub", "full_text_status": "public", "keywords": "cosmological parameters\n distance scale\n large-scale structure of the universe", "note": "\u00a9 2014 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society. Accepted 2014 April 17. Received 2014 March 14. In original form 2013 December 31. First published online June 1, 2014. We thank Florian Beutler, Daniel Eisenstein, Shahab Joudaki,\nAntony Lewis, Felipe Marin and Ariel Sanchez for useful discussions. EK and JK are supported by the Australian Research Council Centre of Excellence for All-sky Astrophysics (CAASTRO), through project number CE110001020. CB acknowledges the support of the Australian Research Council through the award of a Future Fellowship. TMD acknowledges the support of the Australian Research Council through a Future Fellowship award, FT100100595. The numerical simulation was supported by the\nSwinSTAR supercomputer at Swinburne University of Technology\nand the Raijin supercomputer through the Flagship Allocation\nScheme of the NCI National Facility at the ANU.\n\nPublished - MNRAS-2014-Kazin-3524-42.pdf
", "abstract": "We present significant improvements in cosmic distance measurements from the WiggleZ Dark Energy Survey, achieved by applying the reconstruction of the baryonic acoustic feature technique. We show using both data and simulations that the reconstruction technique can often be effective despite patchiness of the survey, significant edge effects and shot-noise. We investigate three redshift bins in the redshift range 0.2 < z < 1, and in all three find improvement after reconstruction in the detection of the baryonic acoustic feature and its usage as a standard ruler. We measure model-independent distance measures D_V(r_s^(fid)/r_s) of 1716 \u00b1 83, 2221 \u00b1 101, 2516 \u00b1 86 Mpc (68 per\u2009cent CL) at effective redshifts z = 0.44, 0.6, 0.73, respectively, where D_V is the volume-averaged distance, and r_s is the sound horizon at the end of the baryon drag epoch. These significantly improved 4.8, 4.5 and 3.4 per cent accuracy measurements are equivalent to those expected from surveys with up to 2.5 times the volume of WiggleZ without reconstruction applied. These measurements are fully consistent with cosmologies allowed by the analyses of the Planck Collaboration and the Sloan Digital Sky Survey. We provide the D_V(r_s^(fid)/r_s) posterior probability distributions and their covariances. When combining these measurements with temperature fluctuations measurements of Planck, the polarization of Wilkinson Microwave Anisotropy Probe 9, and the 6dF Galaxy Survey baryonic acoustic feature, we do not detect deviations from a flat \u039b cold dark matter (\u039bCDM) model. Assuming this model, we constrain the current expansion rate to H_0 = 67.15 \u00b1 0.98 km s^(\u22121)Mpc^(\u22121). Allowing the equation of state of dark energy to vary, we obtain w_(DE) = \u22121.080 \u00b1 0.135. When assuming a curved \u039bCDM model we obtain a curvature value of \u03a9_K = \u22120.0043 \u00b1 0.0047.", "date": "2014-06-01", "date_type": "published", "publication": "Monthly Notices of the Royal Astronomical Society", "volume": "441", "number": "4", "publisher": "Royal Astronomical Society", "pagerange": "3524-3542", "id_number": "CaltechAUTHORS:20140811-091252086", "issn": "0035-8711", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20140811-091252086", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "Australian Research Council Centre of Excellence for All-sky Astrophysics (CAASTRO)", "grant_number": "CE110001020" }, { "agency": "Australian Research Council", "grant_number": "FT100100595" } ] }, "local_group": { "items": [ { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1093/mnras/stu778", "primary_object": { "basename": "MNRAS-2014-Kazin-3524-42.pdf", "url": "https://authors.library.caltech.edu/records/2y8zz-4pj06/files/MNRAS-2014-Kazin-3524-42.pdf" }, "resource_type": "article", "pub_year": "2014", "author_list": "Kazin, Eyal A.; Forster, Karl; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/7babk-b6971", "eprint_id": 45840, "eprint_status": "archive", "datestamp": "2023-08-20 00:19:03", "lastmod": "2023-10-26 18:29:23", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Bellm-E-C", "name": { "family": "Bellm", "given": "Eric C." }, "orcid": "0000-0001-8018-5348" }, { "id": "Barri\u00e8re-N-M", "name": { "family": "Barri\u00e8re", "given": "Nicolas M." }, "orcid": "0000-0001-9407-9490" }, { "id": "Bhalerao-V-B", "name": { "family": "Bhalerao", "given": "Varun" }, "orcid": "0000-0002-6112-7609" }, { "id": "Boggs-S-E", "name": { "family": "Boggs", "given": "Steven E." }, "orcid": "0000-0001-9567-4224" }, { "id": "Cenko-S-B", "name": { "family": "Cenko", "given": "S. Bradley" }, "orcid": "0000-0003-1673-970X" }, { "id": "Christensen-F-E", "name": { "family": "Christensen", "given": "Finn E." }, "orcid": "0000-0001-5679-1946" }, { "id": "Craig-W-W", "name": { "family": "Craig", "given": "William W." } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Fryer-C-L", "name": { "family": "Fryer", "given": "Chris L." }, "orcid": "0000-0003-2624-0056" }, { "id": "Hailey-C-J", "name": { "family": "Hailey", "given": "Charles J." } }, { "id": "Harrison-F-A", "name": { "family": "Harrison", "given": "Fiona A." }, "orcid": "0000-0003-2992-8024" }, { "id": "Horesh-A", "name": { "family": "Horesh", "given": "Assaf" }, "orcid": "0000-0002-5936-1156" }, { "id": "Kouveliotou-C", "name": { "family": "Kouveliotou", "given": "Chryssa" }, "orcid": "0000-0003-1443-593X" }, { "id": "Madsen-K-K", "name": { "family": "Madsen", "given": "Kristin K." }, "orcid": "0000-0003-1252-4891" }, { "id": "Miller-J-M", "name": { "family": "Miller", "given": "Jon M." } }, { "id": "Ofek-E-O", "name": { "family": "Ofek", "given": "Eran O." }, "orcid": "0000-0002-6786-8774" }, { "id": "Perley-D-A", "name": { "family": "Perley", "given": "Daniel A." }, "orcid": "0000-0001-8472-1996" }, { "id": "Rana-V-R", "name": { "family": "Rana", "given": "Vikram R." }, "orcid": "0000-0003-1703-8796" }, { "id": "Reynolds-S-P", "name": { "family": "Reynolds", "given": "Stephen P." } }, { "id": "Stern-D", "name": { "family": "Stern", "given": "Daniel" }, "orcid": "0000-0003-2686-9241" }, { "id": "Tomsick-J-A", "name": { "family": "Tomsick", "given": "John A." }, "orcid": "0000-0001-5506-9855" }, { "id": "Zhang-W-W", "name": { "family": "Zhang", "given": "William W." }, "orcid": "0000-0002-1426-9698" } ] }, "title": "X-ray Spectral Components Observed in the Afterglow of GRB 130925A", "ispublished": "pub", "full_text_status": "public", "keywords": "gamma-ray burst: individual (GRB 130925A)", "note": "\u00a9 American Astronomical Society. \n\nReceived 2014 January 17; accepted 2014 February 26; published 2014 March 11. \n\nThis work was supported under NASA contract No. NNG08FD60C and uses data from the NuSTAR mission, a project led by the California Institute of Technology, managed by the Jet Propulsion Laboratory, and funded by the National\nAeronautics and Space Administration. We thank the NuSTAR\nOperations team for executing the target of opportunity observations. This research has used the NuSTAR Data Analysis Software (NuSTARDAS) jointly developed by the ASI\nScience Data Center (ASDC, Italy) and the California Institute of Technology (USA). These results are based in part on observations made by the Chandra X-ray Observatory. We thank the Chandra director for granting discretionary time and the Chandra team for prompt execution of the observations.\nFacilities: NuSTAR, Swift, Chandra.\n\nPublished - 2041-8205_784_2_L19.pdf
Submitted - 1402.6755v1.pdf
", "abstract": "We have identified spectral features in the late-time X-ray afterglow of the unusually long, slow-decaying GRB 130925A using NuSTAR, Swift/X-Ray Telescope, and Chandra. A spectral component in addition to an absorbed power law is required at >4\u03c3 significance, and its spectral shape varies between two observation epochs at 2 \u00d7 10^5 and 10^6 s after the burst. Several models can fit this additional component, each with very different physical implications. A broad, resolved Gaussian absorption feature of several keV width improves the fit, but it is poorly constrained in the second epoch. An additive blackbody or second power-law component provide better fits. Both are challenging to interpret: the blackbody radius is near the scale of a compact remnant (10^8 cm), while the second power-law component requires an unobserved high-energy cutoff in order to be consistent with the non-detection by Fermi/Large Area Telescope.", "date": "2014-04-01", "date_type": "published", "publication": "Astrophysical Journal Letters", "volume": "784", "number": "2", "publisher": "American Astronomical Society", "pagerange": "Art. No. L19", "id_number": "CaltechAUTHORS:20140520-095049434", "issn": "2041-8205", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20140520-095049434", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA", "grant_number": "NNG08FD60C" }, { "agency": "NASA/JPL/Caltech" } ] }, "other_numbering_system": { "items": [ { "id": "2014-65", "name": "Space Radiation Laboratory" } ] }, "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" }, { "id": "NuSTAR" } ] }, "doi": "10.1088/2041-8205/784/2/L19", "primary_object": { "basename": "1402.6755v1.pdf", "url": "https://authors.library.caltech.edu/records/7babk-b6971/files/1402.6755v1.pdf" }, "related_objects": [ { "basename": "2041-8205_784_2_L19.pdf", "url": "https://authors.library.caltech.edu/records/7babk-b6971/files/2041-8205_784_2_L19.pdf" } ], "resource_type": "article", "pub_year": "2014", "author_list": "Bellm, Eric C.; Barri\u00e8re, Nicolas M.; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/85vm1-n3j53", "eprint_id": 44857, "eprint_status": "archive", "datestamp": "2023-08-22 11:50:24", "lastmod": "2023-10-26 17:00:28", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "An-Hongjun", "name": { "family": "An", "given": "H." } }, { "id": "Bhalerao-V-B", "name": { "family": "Bhalerao", "given": "V." }, "orcid": "0000-0002-6112-7609" }, { "id": "Bellm-E-C", "name": { "family": "Bellm", "given": "E. C." }, "orcid": "0000-0001-8018-5348" }, { "id": "Forster-K", "name": { "family": "Forster", "given": "K." }, "orcid": "0000-0001-5800-5531" }, { "id": "Grefenstette-B-W", "name": { "family": "Grefenstette", "given": "B. W." }, "orcid": "0000-0002-1984-2932" }, { "id": "Harrison-F-A", "name": { "family": "Harrison", "given": "F. A." }, "orcid": "0000-0003-2992-8024" }, { "id": "Madsen-K-K", "name": { "family": "Madsen", "given": "K. K." }, "orcid": "0000-0003-1252-4891" }, { "id": "Rana-V-R", "name": { "family": "Rana", "given": "V. R." }, "orcid": "0000-0003-1703-8796" }, { "id": "Tendulkar-S", "name": { "family": "Tendulkar", "given": "S." } } ] }, "title": "NuSTAR results and future plans for magnetar and rotation-powered pulsar observations", "ispublished": "pub", "full_text_status": "public", "keywords": "space vehicles; stars: neutron; telescopes; X-rays: stars", "note": "\u00a9 2014 Wiley-VCH Verlag GmbH&Co. KGaA, Weinheim.\n\nReceived 2013 Dec 20; accepted 2014 Jan 14; Published online 2014 Mar 16.\n\nThis work was supported under NASA Contract No. NNG08FD60C, and made use of data from the NuSTAR mission, a project led by the California Institute of Technology, managed by the Jet Propulsion Laboratory, and funded by the National Aeronautics and Space Administration. We thank the NuSTAR Operations, Software and Calibration teams for support\nwith the execution and analysis of these observations. This\nresearch has made use of the NuSTAR Data Analysis Software\n(NuSTARDAS) jointly developed by the ASI Science Data Center\n(ASDC, Italy) and the California Institute of Technology (USA). V.M.K. acknowledges support from an NSERC Discovery Grant, the FQRNT Centre de Recherche Astrophysique du Qu\u00e9bec, an R. Howard Webster Foundation Fellowship from the Canadian Institute for Advanced Research (CIFAR), the Canada Research Chairs Program and the Lorne Trottier Chair in Astrophysics and Cosmology. A.M.B. acknowledges the support by NASA grants NNX10AI72G and NNX13AI34G. Part of this work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DEAC52-07NA27344.\n\nSubmitted - 1402.1079v1.pdf
", "abstract": "The Nuclear Spectroscopic Telescope Array (NuSTAR) is the first focusing hard X-ray mission in orbit and operates in the 3\u201379 keV range. NuSTAR's sensitivity is roughly two orders of magnitude better than previous missions in this energy band thanks to its superb angular resolution. Since its launch in 2012 June, NuSTAR has performed excellently and observed many interesting sources including four magnetars, two rotation-powered pulsars and the cataclysmic variable AE Aquarii. NuSTAR also discovered 3.76-s pulsations from the transient source SGR J1745\u201329 recently found by Swift very close to the Galactic center, clearly identifying the source as a transient magnetar. For magnetar 1E 1841\u2013045, we show that the spectrum is well fit by an absorbed blackbody plus broken power-law model with a hard power-law photon index of \u223c 1.3. This is consistent with previous results by INTEGRAL and RXTE. We also find an interesting double-peaked pulse profile in the 25\u201335 keV band. For AE Aquarii, we show that the spectrum can be described by a multi-temperature thermal model or a thermal plus non-thermal model; a multi-temperature thermal model without a non-thermal component cannot be ruled out. Furthermore, we do not see a spiky pulse profile in the hard X-ray band, as previously reported based on Suzaku observations. For other magnetars and rotation-powered pulsars observed with NuSTAR, data analysis results will be soon available.", "date": "2014-03", "date_type": "published", "publication": "Astronomische Nachrichten", "volume": "335", "number": "3", "publisher": "Wiley", "pagerange": "280-284", "id_number": "CaltechAUTHORS:20140410-114248478", "issn": "0004-6337", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20140410-114248478", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA", "grant_number": "NNG08FD60C" }, { "agency": "Natural Sciences and Engineering Research Council of Canada (NSERC)" }, { "agency": "Fonds de recherche du Qu\u00e9be-Nature et technologies (FRQ-NT)" }, { "agency": "Canadian Institute for Advanced Research (CIFAR)" }, { "agency": "Canada Research Chairs Program" }, { "agency": "Lorne Trottier Chair in Astrophysics and Cosmology" }, { "agency": "NASA", "grant_number": "NNX10AI72G" }, { "agency": "NASA", "grant_number": "NNX13AI34G" }, { "agency": "Department of Energy (DOE)", "grant_number": "DE-AC52-07NA27344" } ] }, "other_numbering_system": { "items": [ { "id": "2014-68", "name": "Space Radiation Laboratory" } ] }, "local_group": { "items": [ { "id": "NuSTAR" }, { "id": "Space-Radiation-Laboratory" } ] }, "corp_creators": { "items": [ "NuSTAR Team" ] }, "doi": "10.1002/asna.201312032", "primary_object": { "basename": "1402.1079v1.pdf", "url": "https://authors.library.caltech.edu/records/85vm1-n3j53/files/1402.1079v1.pdf" }, "resource_type": "article", "pub_year": "2014", "author_list": "An, H.; Bhalerao, V.; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/91pfp-bmf24", "eprint_id": 44534, "eprint_status": "archive", "datestamp": "2023-08-22 11:45:37", "lastmod": "2023-10-26 14:45:59", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Grefenstette-B-W", "name": { "family": "Grefenstette", "given": "B. W." }, "orcid": "0000-0002-1984-2932" }, { "id": "Harrison-F-A", "name": { "family": "Harrison", "given": "F. A." }, "orcid": "0000-0003-2992-8024" }, { "id": "Madsen-K-K", "name": { "family": "Madsen", "given": "K. K." }, "orcid": "0000-0003-1252-4891" }, { "id": "Forster-K", "name": { "family": "Forster", "given": "K." }, "orcid": "0000-0001-5800-5531" }, { "id": "Mao-Peter-H", "name": { "family": "Mao", "given": "P. H." } }, { "id": "Miyasaka-Hiromasa", "name": { "family": "Miyasaka", "given": "H." }, "orcid": "0000-0002-8074-4186" }, { "id": "Rana-V-R", "name": { "family": "Rana", "given": "V." }, "orcid": "0000-0003-1703-8796" } ] }, "title": "Asymmetries in core-collapse supernovae from maps of radioactive ^(44)Ti in Cassiopeia A", "ispublished": "pub", "full_text_status": "public", "keywords": "High-energy astrophysics; Particle astrophysics", "note": "\u00a9 2014 Macmillan Publishers Limited. \n\nReceived 27 August 2013. Accepted 13 December 2013. Published online 19 February 2014.\n\nThis work was supported by NASA under grant no. NNG08FD60C, and made use of data from the Nuclear Spectroscopic Telescope Array (NuSTAR) mission, a project led by Caltech, managed by the Jet Propulsion Laboratory and funded by NASA. We thank the NuSTAR operations, software and calibration teams for support with execution and analysis of these observations.\n\nSubmitted - 1403.4978v1.pdf
Supplemental Material - nature12997-sf1.jpg
Supplemental Material - nature12997-sf2.jpg
Supplemental Material - nature12997-sf3.jpg
Supplemental Material - nature12997-sf4.jpg
Supplemental Material - nature12997-sf5.jpg
Supplemental Material - nature12997-st1.jpg
Supplemental Material - nature12997-st2.jpg
Supplemental Material - nature12997-st3.jpg
", "abstract": "Asymmetry is required by most numerical simulations of stellar core-collapse explosions, but the form it takes differs significantly among models. The spatial distribution of radioactive ^(44)Ti, synthesized in an exploding star near the boundary between material falling back onto the collapsing core and that ejected into the surrounding medium, directly probes the explosion asymmetries. Cassiopeia\u2009A is a young, nearby, core-collapse remnant from which ^(44)Ti emission has previously been detected but not imaged. Asymmetries in the explosion have been indirectly inferred from a high ratio of observed ^(44)Ti emission to estimated ^(56)Ni emission, from optical light echoes, and from jet-like features seen in the X-ray and optical ejecta. Here we report spatial maps and spectral properties of the ^(44)Ti in Cassiopeia A. This may explain the unexpected lack of correlation between the ^(44)Ti and iron X-ray emission, the latter being visible only in shock-heated material. The observed spatial distribution rules out symmetric explosions even with a high level of convective mixing, as well as highly asymmetric bipolar explosions resulting from a fast-rotating progenitor. Instead, these observations provide strong evidence for the development of low-mode convective instabilities in core-collapse supernovae.", "date": "2014-02-20", "date_type": "published", "publication": "Nature", "volume": "506", "number": "7488", "publisher": "Nature Publishing Group", "pagerange": "339-342", "id_number": "CaltechAUTHORS:20140326-135228627", "issn": "0028-0836", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20140326-135228627", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA", "grant_number": "NNG08FD60C" } ] }, "other_numbering_system": { "items": [ { "id": "2014-02", "name": "Space Radiation Laboratory" } ] }, "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" }, { "id": "NuSTAR" } ] }, "doi": "10.1038/nature12997", "primary_object": { "basename": "nature12997-sf4.jpg", "url": "https://authors.library.caltech.edu/records/91pfp-bmf24/files/nature12997-sf4.jpg" }, "related_objects": [ { "basename": "nature12997-sf5.jpg", "url": "https://authors.library.caltech.edu/records/91pfp-bmf24/files/nature12997-sf5.jpg" }, { "basename": "1403.4978v1.pdf", "url": "https://authors.library.caltech.edu/records/91pfp-bmf24/files/1403.4978v1.pdf" }, { "basename": "nature12997-sf2.jpg", "url": "https://authors.library.caltech.edu/records/91pfp-bmf24/files/nature12997-sf2.jpg" }, { "basename": "nature12997-sf3.jpg", "url": "https://authors.library.caltech.edu/records/91pfp-bmf24/files/nature12997-sf3.jpg" }, { "basename": "nature12997-st3.jpg", "url": "https://authors.library.caltech.edu/records/91pfp-bmf24/files/nature12997-st3.jpg" }, { "basename": "nature12997-sf1.jpg", "url": "https://authors.library.caltech.edu/records/91pfp-bmf24/files/nature12997-sf1.jpg" }, { "basename": "nature12997-st1.jpg", "url": "https://authors.library.caltech.edu/records/91pfp-bmf24/files/nature12997-st1.jpg" }, { "basename": "nature12997-st2.jpg", "url": "https://authors.library.caltech.edu/records/91pfp-bmf24/files/nature12997-st2.jpg" } ], "resource_type": "article", "pub_year": "2014", "author_list": "Grefenstette, B. W.; Harrison, F. A.; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/1hf1k-xpw24", "eprint_id": 43600, "eprint_status": "archive", "datestamp": "2023-08-22 11:22:29", "lastmod": "2023-10-25 23:42:04", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Tomsick-J-A", "name": { "family": "Tomsick", "given": "John A." }, "orcid": "0000-0001-5506-9855" }, { "id": "Nowak-M-A", "name": { "family": "Nowak", "given": "Michael A." }, "orcid": "0000-0001-6923-1315" }, { "id": "Parker-M", "name": { "family": "Parker", "given": "Michael" } }, { "id": "Miller-J-M", "name": { "family": "Miller", "given": "Jon M." } }, { "id": "Fabian-A-C", "name": { "family": "Fabian", "given": "Andy C." }, "orcid": "0000-0002-9378-4072" }, { "id": "Harrison-F-A", "name": { "family": "Harrison", "given": "Fiona A." }, "orcid": "0000-0003-2992-8024" }, { "id": "Bachetti-M", "name": { "family": "Bachetti", "given": "Matteo" }, "orcid": "0000-0002-4576-9337" }, { "id": "Barret-D", "name": { "family": "Barret", "given": "Didier" }, "orcid": "0000-0002-0393-9190" }, { "id": "Boggs-S-E", "name": { "family": "Boggs", "given": "Steven E." }, "orcid": "0000-0001-9567-4224" }, { "id": "Christensen-F-E", "name": { "family": "Christensen", "given": "Finn E." }, "orcid": "0000-0001-5679-1946" }, { "id": "Craig-W-W", "name": { "family": "Craig", "given": "William W." } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "F\u00fcrst-F", "name": { "family": "F\u00fcrst", "given": "Felix" }, "orcid": "0000-0003-0388-0560" }, { "id": "Grefenstette-B-W", "name": { "family": "Grefenstette", "given": "Brian W." }, "orcid": "0000-0002-1984-2932" }, { "id": "Hailey-C-J", "name": { "family": "Hailey", "given": "Charles J." } }, { "id": "King-A-L", "name": { "family": "King", "given": "Ashley L." } }, { "id": "Madsen-K-K", "name": { "family": "Madsen", "given": "Kristin K." }, "orcid": "0000-0003-1252-4891" }, { "id": "Natalucci-L", "name": { "family": "Natalucci", "given": "Lorenzo" }, "orcid": "0000-0002-6601-9543" }, { "id": "Pottschmidt-K", "name": { "family": "Pottschmidt", "given": "Katja" }, "orcid": "0000-0002-4656-6881" }, { "id": "Ross-R-R", "name": { "family": "Ross", "given": "Randy R." } }, { "id": "Stern-D", "name": { "family": "Stern", "given": "Daniel" }, "orcid": "0000-0003-2686-9241" }, { "id": "Walton-D-J", "name": { "family": "Walton", "given": "Dominic J." }, "orcid": "0000-0001-5819-3552" }, { "id": "Wilms-J", "name": { "family": "Wilms", "given": "J\u00f6rn" }, "orcid": "0000-0003-2065-5410" }, { "id": "Zhang-W-W", "name": { "family": "Zhang", "given": "William W." }, "orcid": "0000-0002-1426-9698" } ] }, "title": "The Reflection Component from Cygnus X-1 in the Soft State Measured by NuSTAR and Suzaku", "ispublished": "pub", "full_text_status": "public", "keywords": "accretion, accretion disks; black hole physics; stars: individual (Cygnus X-1); X-rays: general; X-rays: stars", "note": "\u00a9 2014 American Astronomical Society. \n\nReceived 2013 September 3; accepted 2013 October 14; published 2013 December 13. \n\nThis work was supported under NASA Contract No. NNG08FD60C and made use of data from the NuSTAR mission, a project led by the California Institute of Technology, managed by the Jet Propulsion Laboratory, and funded by the National Aeronautics and Space Administration. We thank the NuSTAR Operations, Software, and Calibration teams for support with the execution and analysis of these observations. This research has made use of the NuSTAR Data Analysis Software (NuSTARDAS) jointly developed by the ASI Science Data Center (ASDC, Italy) and the California Institute of Technology (USA). J.A.T. acknowledges partial support from NASA Astrophysics Data Analysis Program grant NNX13AE98G. L.N. wishes to acknowledge the Italian Space Agency (ASI) for financial support by ASI/INAF grant I/037/12/0-011/13. J.A.T. thanks L. Brenneman, G. Matt, and D. Ballantyne for useful discussions about reflection modeling. This work made use of IDL software written by N. Barri\u00e8re for rebinning the NuSTAR spectra. This research has made use of the MAXI data provided by RIKEN, JAXA, and the MAXI team.\n\nPublished - 0004-637X_780_1_78.pdf
Submitted - 1310.3830v1.pdf
", "abstract": "The black hole binary Cygnus X-1 was observed in late 2012 with the Nuclear Spectroscopic Telescope Array (NuSTAR) and Suzaku, providing spectral coverage over the ~1-300 keV range. The source was in the soft state with a multi-temperature blackbody, power law, and reflection components along with absorption from highly ionized material in the system. The high throughput of NuSTAR allows for a very high quality measurement of the complex iron line region as well as the rest of the reflection component. The iron line is clearly broadened and is well described by a relativistic blurring model, providing an opportunity to constrain the black hole spin. Although the spin constraint depends somewhat on which continuum model is used, we obtain \u0251_* > 0.83 for all models that provide a good description of the spectrum. However, none of our spectral fits give a disk inclination that is consistent with the most recently reported binary values for Cyg X-1. This may indicate that there is a >13\u00b0 misalignment between the orbital plane and the inner accretion disk (i.e., a warped accretion disk) or that there is missing physics in the spectral models.", "date": "2014-01-01", "date_type": "published", "publication": "Astrophysical Journal", "volume": "780", "number": "1", "publisher": "American Astronomical Society", "pagerange": "Art. No. 78", "id_number": "CaltechAUTHORS:20140131-084009659", "issn": "0004-637X", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20140131-084009659", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA", "grant_number": "NNG08FD60C" }, { "agency": "NASA/JPL/Caltech" }, { "agency": "NASA", "grant_number": "NNX13AE98G" }, { "agency": "Agenzia Spaziale Italiana (ASI)", "grant_number": "I/037/12/0-011/13" } ] }, "local_group": { "items": [ { "id": "NuSTAR" }, { "id": "Space-Radiation-Laboratory" } ] }, "doi": "10.1088/0004-637X/780/1/78", "primary_object": { "basename": "0004-637X_780_1_78.pdf", "url": "https://authors.library.caltech.edu/records/1hf1k-xpw24/files/0004-637X_780_1_78.pdf" }, "related_objects": [ { "basename": "1310.3830v1.pdf", "url": "https://authors.library.caltech.edu/records/1hf1k-xpw24/files/1310.3830v1.pdf" } ], "resource_type": "article", "pub_year": "2014", "author_list": "Tomsick, John A.; Nowak, Michael A.; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/3sm1b-pew22", "eprint_id": 52261, "eprint_status": "archive", "datestamp": "2023-08-19 22:32:36", "lastmod": "2023-10-18 19:42:54", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Balokovi\u0107-M", "name": { "family": "Balokovi\u0107", "given": "M." } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "K." }, "orcid": "0000-0001-5800-5531" }, { "id": "F\u00fcrst-F", "name": { "family": "F\u00fcrst", "given": "F." }, "orcid": "0000-0003-0388-0560" }, { "id": "Grefenstette-B-W", "name": { "family": "Grefenstette", "given": "B. W." }, "orcid": "0000-0002-1984-2932" }, { "id": "Harrison-F-A", "name": { "family": "Harrison", "given": "F. A." }, "orcid": "0000-0003-2992-8024" }, { "id": "Madsen-K-K", "name": { "family": "Madsen", "given": "K. K." }, "orcid": "0000-0003-1252-4891" }, { "id": "Ogle-P-M", "name": { "family": "Ogle", "given": "P." }, "orcid": "0000-0002-3471-981X" } ] }, "title": "First Results from NuSTAR Observations of Mkn 421", "ispublished": "pub", "full_text_status": "public", "note": "\u00a9 2013 Owned by the authors, published by EDP Sciences. This is an Open Access article distributed under the terms of the Creative Commons Attribution License 2.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. \n\nPublished online: 9 December 2013.\n\nPublished - epjconf_rj2013_04013.pdf
", "abstract": "Mkn 421 is a nearby active galactic nucleus dominated at all wavelengths by a very broad nonthermal continuum thought to arise from a relativistic jet seen at a small angle to the line of sight. Its spectral energy distribution peaks in the X-ray and TeV \u03b3-ray bands, where the energy output is dominated by cooling of high-energy electrons in the jet. In order to study the electron distribution and its evolution, we carried out a dedicated multi-wavelength campaign, including extensive observations by the recently launched highly sensitive hard X-ray telescope NuSTAR, between December 2012 and May 2013. Here we present some initial results based on NuSTAR data from January through March 2013, as well as calibration observations conducted in 2012. Although the observations cover some of the faintest hard X-ray flux states ever observed for Mkn 421, the sensitivity is high enough to resolve intra-day spectral variability. We find that in this low state the dominant flux variations are smooth on timescales of hours, with typical intra-hour variations of \u2272 5%. We do not find evidence for either a cutoff in the hard X-ray spectrum, or a rise towards a high-energy component, but rather that at low flux the spectrum assumes a power law shape with a photon index of approximately 3. The spectrum is found to harden with increasing brightness.", "date": "2013-12-09", "date_type": "published", "publication": "EPJ Web of Conferences", "volume": "61", "publisher": "EDP Sciences", "pagerange": "Art. No. 04013", "id_number": "CaltechAUTHORS:20141202-100055952", "issn": "2100-014X", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20141202-100055952", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "doi": "10.1051/epjconf/20136104013", "primary_object": { "basename": "epjconf_rj2013_04013.pdf", "url": "https://authors.library.caltech.edu/records/3sm1b-pew22/files/epjconf_rj2013_04013.pdf" }, "resource_type": "article", "pub_year": "2013", "author_list": "Balokovi\u0107, M.; Forster, K.; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/9jrba-a4g54", "eprint_id": 42503, "eprint_status": "archive", "datestamp": "2023-08-22 10:18:03", "lastmod": "2023-10-25 16:43:29", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Jurek-R-J", "name": { "family": "Jurek", "given": "Russell J." } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted K." } } ] }, "title": "The WiggleZ Dark Energy Survey: star formation in UV-luminous galaxies from their luminosity functions", "ispublished": "pub", "full_text_status": "public", "keywords": "galaxies: luminosity function, mass function; galaxies: starburst; ultraviolet: galaxies", "note": "\u00a9 2013 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society.\n\nAccepted 2013 June 6. Received 2013 May 2; in original form 2012 November 17.\n\nFirst published online: July 8, 2013.\n\nThis project would not have been possible without the superb\nAAOmega/2dF facility provided by the Australian Astronomical\nObservatory. We wish to thank all the AAO staff for their support, especially the night assistants, support astronomers and Russell Cannon (who greatly assisted with the quality control of the 2dF system). We wish to acknowledge financial support from the Australian Research Council (grants DP0772084, DP1093738 and LX0881951 directly for the WiggleZ project, and grant LE0668442 for programming\nsupport), Swinburne University of Technology, the University\nof Queensland, the Anglo-Australian Observatory and the Gregg Thompson Dark Energy Travel Fund. The Galaxy Evolution Explorer (GALEX) is a NASA Small Explorer, launched in 2003 April. We gratefully acknowledge NASA's\nsupport for construction, operation and science analysis for the GALEX mission, developed in cooperation with the Centre National d'Etudes Spatiales of France and the Korean Ministry of Science and Technology. Funding for the SDSS and SDSS-II has been provided by the Alfred P. Sloan Foundation, the Participating Institutions, the National\nScience Foundation, the US Department of Energy, the National Aeronautics and Space Administration, the Japanese Monbukagakusho, theMax Planck Society and theHigher Education Funding Council for England. The SDSS website is http://www.sdss.org/. Funding for the DEEP2 survey has been provided by NSF grants AST95-09298, AST-0071048, AST-0071198, AST-0507428 and AST-0507483 as well as NASA LTSA grant NNG04GC89G. Some of the data presented herein were obtained at the W. M. Keck Observatory, which is operated as a scientific partnership among the California Institute of Technology, the University of California and the National Aeronautics and Space Administration. The Observatory was made possible by the generous financial support of the W. M. Keck Foundation.\n\nPublished - MNRAS-2013-Jurek-257-81.pdf
Submitted - 1306.4031v1.pdf
", "abstract": "We present the ultraviolet (UV) luminosity function of galaxies from the GALEX Medium Imaging Survey with measured spectroscopic redshifts from the first data release of the WiggleZ Dark Energy Survey. Our sample consists of 39 996 NUV < 22.8 emission line galaxies in the redshift range 0.1 < z < 0.9. This sample selects galaxies with high star formation rates: at 0.6 < z < 0.9 the median star formation rate is at the upper 95th percentile of optically selected (r < 22.5) galaxies and the sample contains about 50\u2009per\u2009cent of all NUV < 22.8, 0.6 < z < 0.9 starburst galaxies within the volume sampled. The most luminous galaxies in our sample (\u221221.0 > M_NUV > \u221222.5) evolve very rapidly with a number density declining as (1 + z)5\u00b11 from redshift z = 0.9 to 0.6. These starburst galaxies (MNUV < \u221221 is approximately a star formation rate of 30\u2009M_\u2299\u2009yr^\u22121) contribute about 1\u2009per\u2009cent of cosmic star formation over the redshift range z = 0.6\u20130.9. The star formation rate density of these very luminous galaxies evolves rapidly, as (1 + z)^4\u00b11. Such a rapid evolution implies that the majority of star formation in these large galaxies must have occurred before z = 0.9. We measure the UV luminosity function in \u0394z = 0.05 redshift intervals spanning 0.1 < z < 0.9, and provide analytic fits to the results. Our measurements of the luminosity function over this redshift range probe further into the bright end (1\u20132 mag further) than previous measurements, e.g. Arnouts et al., Budav\u00e1ri et al. and Treyer et al., due to our much larger sample size and sampled volume. At all redshifts z > 0.55 we find that the bright end of the luminosity function is not well described by a pure Schechter function due to an excess of very luminous (MNUV < \u221222) galaxies. These luminosity functions can be used to create a radial selection function for the WiggleZ survey or test models of galaxy formation and evolution. Here we test the AGN feedback model in Scannapieco, Silk & Bouwens, and find that this AGN feedback model requires AGN feedback efficiency to vary with one or more of the following: stellar mass, star formation rate and redshift.", "date": "2013-09-01", "date_type": "published", "publication": "Monthly Notices of the Royal Astronomical Society", "volume": "434", "number": "1", "publisher": "Royal Astronomical Society", "pagerange": "257-281", "id_number": "CaltechAUTHORS:20131115-120041384", "issn": "0035-8711", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20131115-120041384", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "Australian Research Council", "grant_number": "DP0772084" }, { "agency": "Australian Research Council", "grant_number": "DP1093738" }, { "agency": "Australian Research Council", "grant_number": "LX0881951" }, { "agency": "Swinburne University of Technology" }, { "agency": "University of Queensland" }, { "agency": "Anglo-Australian Observatory" }, { "agency": "Gregg Thompson Dark Energy Travel Fund" }, { "agency": "NASA" }, { "agency": "Alfred P. Sloan Foundation" }, { "agency": "NSF" }, { "agency": "Department of Energy (DOE)" }, { "agency": "Japanese Monbukagakusho" }, { "agency": "Max Planck Society" }, { "agency": "Higher Education Funding Council for England" }, { "agency": "NSF", "grant_number": "AST95-09298" }, { "agency": "NSF", "grant_number": "AST-0071048" }, { "agency": "NSF", "grant_number": "AST-0071198" }, { "agency": "NSF", "grant_number": "AST-0507428" }, { "agency": "NSF", "grant_number": "AST-0507483" }, { "agency": "NASA LTSA", "grant_number": "NNG04GC89G" }, { "agency": "W. M. Keck Foundation" } ] }, "local_group": { "items": [ { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1093/mnras/stt1015", "primary_object": { "basename": "1306.4031v1.pdf", "url": "https://authors.library.caltech.edu/records/9jrba-a4g54/files/1306.4031v1.pdf" }, "related_objects": [ { "basename": "MNRAS-2013-Jurek-257-81.pdf", "url": "https://authors.library.caltech.edu/records/9jrba-a4g54/files/MNRAS-2013-Jurek-257-81.pdf" } ], "resource_type": "article", "pub_year": "2013", "author_list": "Jurek, Russell J.; Forster, Karl; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/tbzbs-avr25", "eprint_id": 39803, "eprint_status": "archive", "datestamp": "2023-08-19 20:44:57", "lastmod": "2023-10-24 17:12:38", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Mar\u00edn-F-A", "name": { "family": "Mar\u00edn", "given": "Felipe A." } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted K." } } ] }, "title": "The WiggleZ Dark Energy Survey: constraining galaxy bias and cosmic growth with three-point correlation functions", "ispublished": "pub", "full_text_status": "public", "keywords": "methods: statistical \u2013 cosmological parameters \u2013 cosmology: observations \u2013\nlarge-scale structure of \u2013 Universe", "note": "\u00a9 2013 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society.\n\nAccepted 2013 March 22. Received 2013 March 22; in original form 2012 November 1.\nFirst published online: May 23, 2013.\n\nWe thank Eyal Kazin for fruitful discussions and suggestions, and the anonymous referee for valuable comments and suggestions. We acknowledge financial support from the Australian Research Council through Discovery Project grants which have funded the positions of MP, GP, TD and FM. SMC acknowledges the support of the Australian Research Council through a QEII Fellowship. CB acknowledges the financial support of the ARC through a Future Fellowship award. We are also grateful for support from the Centre for All-sky Astrophysics, an Australian Research Council Centre of Excellence funded by grant CE11000102. The Galaxy Evolution Explorer (GALEX) is a NASA Small Explorer, launched in 2003 April. We gratefully acknowledge NASA's support for construction, operation and science analysis for the GALEX mission, developed in cooperation with the Centre National d'Etudes Spatiales of France and the Korean Ministry of Science and Technology. Finally, the WiggleZ survey would not be possible without the dedicated work of the staff of the Australian Astronomical Observatory in the development and support of the AAOmega spectrograph, and the running of the AAT.\n\nPublished - stt520.pdf
Submitted - 1303.6644v1.pdf
", "abstract": "Higher order statistics are a useful and complementary tool for measuring the clustering of galaxies, containing information on the non-Gaussian evolution and morphology of large-scale structure in the Universe. In this work we present measurements of the three-point correlation function (3PCF) for 187\u2009000 galaxies in the WiggleZ spectroscopic galaxy survey. We explore the WiggleZ 3PCF scale and shape dependence at three different epochs z = 0.35, 0.55 and 0.68, the highest redshifts where these measurements have been made to date. Using N-body simulations to predict the clustering of dark matter, we constrain the linear and non-linear bias parameters of WiggleZ galaxies with respect to dark matter, and marginalize over them to obtain constraints on \u03c38(z), the variance of perturbations on a scale of 8 h^\u22121 Mpc and its evolution with redshift. These measurements of \u03c3_8(z), which have 10\u201320 per cent accuracies, are consistent with the predictions of the \u039b cold dark matter concordance cosmology and test this model in a new way.", "date": "2013-07-11", "date_type": "published", "publication": "Monthly Notices of the Royal Astronomical Society", "volume": "432", "number": "4", "publisher": "Royal Astronomical Society", "pagerange": "2654-2668", "id_number": "CaltechAUTHORS:20130807-115748472", "issn": "0035-8711", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20130807-115748472", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "Australian Research Council", "grant_number": "CE110001020" } ] }, "local_group": { "items": [ { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1093/mnras/stt520", "primary_object": { "basename": "1303.6644v1.pdf", "url": "https://authors.library.caltech.edu/records/tbzbs-avr25/files/1303.6644v1.pdf" }, "related_objects": [ { "basename": "stt520.pdf", "url": "https://authors.library.caltech.edu/records/tbzbs-avr25/files/stt520.pdf" } ], "resource_type": "article", "pub_year": "2013", "author_list": "Mar\u00edn, Felipe A.; Forster, Karl; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/8apk2-t4688", "eprint_id": 39563, "eprint_status": "archive", "datestamp": "2023-08-22 09:39:25", "lastmod": "2023-10-24 16:56:28", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Harrison-F-A", "name": { "family": "Harrison", "given": "Fiona A." }, "orcid": "0000-0003-2992-8024" }, { "id": "Cook-W-R", "name": { "family": "Cook", "given": "W. Rick" } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Grefenstette-B-W", "name": { "family": "Grefenstette", "given": "Brian W." }, "orcid": "0000-0002-1984-2932" }, { "id": "Madsen-K-K", "name": { "family": "Madsen", "given": "Kristin K." }, "orcid": "0000-0003-1252-4891" }, { "id": "Mao-Peter-H", "name": { "family": "Mao", "given": "Peter H." } }, { "id": "Miyasaka-Hiromasa", "name": { "family": "Miyasaka", "given": "Hiromasa" }, "orcid": "0000-0002-8074-4186" }, { "id": "Rana-V-R", "name": { "family": "Rana", "given": "Vikram R." }, "orcid": "0000-0003-1703-8796" }, { "id": "Bellm-E-C", "name": { "family": "Bellm", "given": "Eric C." }, "orcid": "0000-0001-8018-5348" }, { "id": "Bhalerao-V-B", "name": { "family": "Bhalerao", "given": "Varun" }, "orcid": "0000-0002-6112-7609" }, { "id": "F\u00fcrst-F", "name": { "family": "Fuerst", "given": "Felix" }, "orcid": "0000-0003-0388-0560" }, { "id": "Walton-D-J", "name": { "family": "Walton", "given": "Dominic J." }, "orcid": "0000-0001-5819-3552" }, { "id": "Balokovi\u0107-M", "name": { "family": "Balokovi\u0107", "given": "Mislav" } }, { "id": "Ogle-P-M", "name": { "family": "Ogle", "given": "Patrick M." }, "orcid": "0000-0002-3471-981X" } ] }, "title": "The Nuclear Spectroscopic Telescope Array (NuSTAR) High-energy X-Ray Mission", "ispublished": "pub", "full_text_status": "public", "keywords": "space vehicles: instruments; X-rays: general", "note": "\u00a9 2013 American Astronomical Society. \n\nReceived 2013 January 22; accepted 2013 April 4; published 2013 May 30. \n\nThis work was supported under NASA No. NNG08FD60C and made use of data from the Nuclear Spectroscopic Telescope Array (NuSTAR) mission, a project led by Caltech, managed by\nthe Jet Propulsion Laboratory, and funded by the National Aeronautics and Space Administration. Additional support for development was provided by the National Space Institute, Technical University of Denmark. The Malindi ground station is provided by the Italian Space Agency (ASI) and support for science software development by the ASI Science Data Center (ASDC). Science team members acknowledge support from Centre National d'Etudes Spatiales (CNES) (D.B., M.B.), the NASA Postdoctoral Program D.R.W.), Leverhulme Research Fellowship and Science and Technology Facilities Council (D.M.A), NSF AST (D.R.B.), U.S. DOE/LLNL (W.W.C., M.P., J.V.), NSERC, CIFAR, FQRNT, and Killam Research Fellowship (V.K.). We thank David Burrows (PSU) for useful comments which improved the quality of the manuscript.\n\nPublished - 0004-637X_770_2_103.pdf
Submitted - 1301.7307v1.pdf
", "abstract": "The Nuclear Spectroscopic Telescope Array (NuSTAR) mission, launched on 2012 June 13, is the first focusing high-energy X-ray telescope in orbit. NuSTAR operates in the band from 3 to 79 keV, extending the sensitivity of focusing far beyond the ~10 keV high-energy cutoff achieved by all previous X-ray satellites. The inherently low background associated with concentrating the X-ray light enables NuSTAR to probe the hard X-ray sky with a more than 100-fold improvement in sensitivity over the collimated or coded mask instruments that have operated in this bandpass. Using its unprecedented combination of sensitivity and spatial and spectral resolution, NuSTAR will pursue five primary scientific objectives: (1) probe obscured active galactic nucleus (AGN) activity out to the peak epoch of galaxy assembly in the universe (at z \u227e 2) by surveying selected regions of the sky; (2) study the population of hard X-ray-emitting compact objects in the Galaxy by mapping the central regions of the Milky Way; (3) study the non-thermal radiation in young supernova remnants, both the hard X-ray continuum and the emission from the radioactive element ^(44)Ti; (4) observe blazars contemporaneously with ground-based radio, optical, and TeV telescopes, as well as with Fermi and Swift, to constrain the structure of AGN jets; and (5) observe line and continuum emission from core-collapse supernovae in the Local Group, and from nearby Type Ia events, to constrain explosion models. During its baseline two-year mission, NuSTAR will also undertake a broad program of targeted observations. The observatory consists of two co-aligned grazing-incidence X-ray telescopes pointed at celestial targets by a three-axis stabilized spacecraft. Deployed into a 600 km, near-circular, 6\u00b0 inclination orbit, the observatory has now completed commissioning, and is performing consistent with pre-launch expectations. NuSTAR is now executing its primary science mission, and with an expected orbit lifetime of 10 yr, we anticipate proposing a guest investigator program, to begin in late 2014.", "date": "2013-06-20", "date_type": "published", "publication": "Astrophysical Journal", "volume": "770", "number": "2", "publisher": "American Astronomical Society", "pagerange": "Art. No. 103", "id_number": "CaltechAUTHORS:20130724-143120220", "issn": "0004-637X", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20130724-143120220", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA", "grant_number": "NNG08FD60C" }, { "agency": "NASA/JPL/Caltech" }, { "agency": "Technical University of Denmark National Space Institute" }, { "agency": "Centre National d'\u00c9tudes Spatiales (CNES)" }, { "agency": "NASA Postdoctoral Program" }, { "agency": "Leverhulme Trust" }, { "agency": "Science and Technology Facilities Council (STFC)" }, { "agency": "NSF" }, { "agency": "Department of Energy (DOE)" }, { "agency": "Natural Sciences and Engineering Research Council of Canada (NSERC)" }, { "agency": "Canadian Institute for Advanced Research (CIFAR)" }, { "agency": "Fonds Qu\u00e9b\u00e9cois de la Recherche sur la Nature et les Technologies (FQRNT)" }, { "agency": "Killam Research Fellowship" }, { "agency": "Agenzia Spaziale Italiana (ASI)" } ] }, "other_numbering_system": { "items": [ { "id": "2014-44", "name": "Space Radiation Laboratory" } ] }, "local_group": { "items": [ { "id": "NuSTAR" }, { "id": "Space-Radiation-Laboratory" } ] }, "doi": "10.1088/0004-637X/770/2/103", "primary_object": { "basename": "0004-637X_770_2_103.pdf", "url": "https://authors.library.caltech.edu/records/8apk2-t4688/files/0004-637X_770_2_103.pdf" }, "related_objects": [ { "basename": "1301.7307v1.pdf", "url": "https://authors.library.caltech.edu/records/8apk2-t4688/files/1301.7307v1.pdf" } ], "resource_type": "article", "pub_year": "2013", "author_list": "Harrison, Fiona A.; Cook, W. Rick; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/9s9qh-cyk96", "eprint_id": 38930, "eprint_status": "archive", "datestamp": "2023-08-19 19:58:31", "lastmod": "2023-10-20 22:17:20", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Banerji-M", "name": { "family": "Banerji", "given": "Manda" } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted K." } } ] }, "title": "The stellar masses of \u223c40 000 UV selected Galaxies from the WiggleZ survey at 0.3 < z < 1.0: analogues of Lyman break galaxies?", "ispublished": "pub", "full_text_status": "public", "keywords": "galaxies: evolution\n galaxies: formation\n galaxies: stellar content", "note": "\u00a9 2013 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. Accepted 2013 February 18. In original form 2013 February 12. Received 2012 December 4. First published online: March 20, 2013. We thank the anonymous referee for a constructive report that has helped improve this paper. MB acknowledges Paul Hewett and Richard McMahon for many constructive discussions and Claudia Maraston and Joel Brownstein for access to the BOSS LRG stellar masses. MB wishes to acknowledge financial support from the STFC through grants held both at the Institute of Astronomy, Cambridge, and University College London. We acknowledge financial support from the Australian Research Council (grants DP1093738, DP0772084, LX0881951, LE0668442), Swinburne University of\nTechnology, the University of Queensland and the Anglo-Australian Observatory for the WiggleZ survey. The WiggleZ survey would not be possible without the dedicated work of the staff of the Australian Astronomical Observatory in the development and support of the AAOmega spectrograph, and the running of the AAT. KG also acknowledges support from Australian Research Council grant DP1094370 for galaxy evolution studies. The Galaxy Evolution Explorer (GALEX) is a NASA Small Explorer, launched in 2003 April. We gratefully acknowledge NASAs support for construction, operation and science analysis for the GALEX mission, developed in cooperation with the Centre National\ndEtudes Spatiales of France and the Korean Ministry of Science and Technology.\n\nPublished - MNRAS-2013-Banerji-2209-29.pdf
Erratum - MNRAS-2015-Banerji-325.pdf
", "abstract": "We characterize the stellar masses and star formation rates in a sample of \u223c40 000 spectroscopically confirmed UV-luminous galaxies at 0.3 < z < 1.0 selected from within the WiggleZ Dark Energy Survey. In particular, we match this UV bright population to wide-field infrared surveys such as the near-infrared (NIR) UKIDSS Large Area Survey (LAS) and the mid-infrared Wide-Field Infrared Survey Explorer (WISE) All-Sky Survey. We find that \u223c30 per cent of the UV-luminous WiggleZ galaxies, corresponding to the brightest and reddest subset, are detected at >5\u03c3 in the UKIDSS-LAS at all redshifts. An even more luminous subset of 15 per cent are also detected in the WISE 3.4 and 4.6\u2009\u03bcm bands. In addition, 22 of the WiggleZ galaxies are extremely luminous at 12 and 22\u2009\u03bcm and have colours consistent with being star formation dominated. We compute stellar masses for this very large sample of extremely blue galaxies and quantify the sensitivity of the stellar mass estimates to various assumptions made during the spectral energy distribution (SED) fitting. The median stellar masses are log10(M_*/M_\u2299) = 9.6 \u00b1 0.7, 10.2 \u00b1 0.5 and 10.4 \u00b1 0.4 for the IR undetected, UKIDSS detected and UKIDSS+WISE detected galaxies, respectively. We demonstrate that the inclusion of NIR photometry can lead to tighter constraints on the stellar masses by bringing down the upper bound on the stellar mass estimate. The mass estimates are found to be most sensitive to the inclusion of secondary bursts of star formation as well as changes in the stellar population synthesis models, both of which can lead to median discrepancies of the order of 0.3\u2009dex in the stellar masses. We conclude that even for these extremely blue galaxies, different SED fitting codes therefore produce extremely robust stellar mass estimates. We find, however, that the best-fitting M/L_K is significantly lower than that predicted by simple optical colour-based estimators for many of the WiggleZ galaxies. The simple colour-based estimator overpredicts M/L_K by \u223c0.4\u2009dex on average. The effect is more pronounced for bluer galaxies with younger best-fitting ages. The WiggleZ galaxies have star formation rates of 3\u201310 M_\u2299 yr^(\u22121) and mostly lie at the upper end of the main sequence of star-forming galaxies at these redshifts. Their rest-frame UV luminosities and stellar masses are comparable to both local compact UV-luminous galaxies as well as Lyman break galaxies at z \u223c 2\u20133. The stellar masses from this paper will be made publicly available with the next WiggleZ data release.", "date": "2013-05-21", "date_type": "published", "publication": "Monthly Notices of the Royal Astronomical Society", "volume": "431", "number": "3", "publisher": "Royal Astronomical Society", "pagerange": "2209-2229", "id_number": "CaltechAUTHORS:20130612-145312186", "issn": "0035-8711", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20130612-145312186", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "Science and Technology Facilities Council (STFC)" }, { "agency": "Australian Research Council", "grant_number": "DP1093738" }, { "agency": "Australian Research Council", "grant_number": "DP0772084" }, { "agency": "Australian Research Council", "grant_number": "LX0881951" }, { "agency": "Australian Research Council", "grant_number": "LE0668442" }, { "agency": "Swinburne University of Technology" }, { "agency": "University of Queensland" }, { "agency": "Anglo-Australian Observatory" }, { "agency": "Australian Research Council", "grant_number": "DP1094370" } ] }, "local_group": { "items": [ { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1093/mnras/stt320", "primary_object": { "basename": "MNRAS-2013-Banerji-2209-29.pdf", "url": "https://authors.library.caltech.edu/records/9s9qh-cyk96/files/MNRAS-2013-Banerji-2209-29.pdf" }, "related_objects": [ { "basename": "MNRAS-2015-Banerji-325.pdf", "url": "https://authors.library.caltech.edu/records/9s9qh-cyk96/files/MNRAS-2015-Banerji-325.pdf" } ], "resource_type": "article", "pub_year": "2013", "author_list": "Banerji, Manda; Forster, Karl; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/37n90-87b86", "eprint_id": 38936, "eprint_status": "archive", "datestamp": "2023-08-19 19:15:45", "lastmod": "2023-10-24 14:52:53", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Contreras-C", "name": { "family": "Contreras", "given": "Carlos" } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted K." } } ] }, "title": "The WiggleZ Dark Energy Survey: measuring the cosmic growth rate with the two-point galaxy correlation function", "ispublished": "pub", "full_text_status": "public", "keywords": "surveys\n cosmological parameters\n large-scale structure of Universe", "note": "\u00a9 2013 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. First published online: February 7, 2013. We acknowledge financial support from the Australian Research Council through Discovery Project grants which have funded the positions of MP, GP, TD and FM. SMC acknowledges the support of the Australian Research Council through a QEII Fellowship. MJD and TD thank the Gregg Thompson Dark Energy Travel Fund for financial support. CC thanks David Parkinson for sharing his expertise on MCMC techniques, and Ana Mar\u00eda Mart\u00ednez for her invaluable feedback and support in the building of this paper. GALEX is a NASA Small Explorer, launched in 2003 April. We gratefully acknowledge NASA's support for construction, operation and science analysis for the GALEX mission, developed in co-operation with the Centre National d'Etudes Spatiales of France and the Korean Ministry of Science and Technology. Finally, the WiggleZ survey would not have been possible without the dedicated work of the staff of the Australian Astronomical Observatory in the development and support of the AAOmega spectrograph,\nand the running of the AAT. This research was supported by CAASTRO: http://caastro.org.\n\nPublished - MNRAS-2013-Contreras-924-33.pdf
", "abstract": "The growth history of large-scale structure in the Universe is a powerful probe of the cosmological model, including the nature of dark energy. We study the growth rate of cosmic structure to redshift z = 0.9 using more than 162\u2009000 galaxy redshifts from the WiggleZ Dark Energy Survey. We divide the data into four redshift slices with effective redshifts z = [0.2, 0.4, 0.6, 0.76] and in each of the samples measure and model the two-point galaxy correlation function in parallel and transverse directions to the line of sight. After simultaneously fitting for the galaxy bias factor we recover values for the cosmic growth rate which are consistent with our assumed \u039bcold dark matter (\u039bCDM) input cosmological model, with an accuracy of around 20 per cent in each redshift slice. We investigate the sensitivity of our results to the details of the assumed model and the range of physical scales fitted, making close comparison with a set of N-body simulations for calibration. Our measurements are consistent with an independent power-spectrum analysis of a similar data set, demonstrating that the results are not driven by systematic errors. We determine the pairwise velocity dispersion of the sample in a non-parametric manner, showing that it systematically increases with decreasing redshift, and investigate the Alcock\u2013Paczynski effects of changing the assumed fiducial model on the results. Our techniques should prove useful for current and future galaxy surveys mapping the growth rate of structure using the two-dimensional correlation function.", "date": "2013-04", "date_type": "published", "publication": "Monthly Notices of the Royal Astronomical Society", "volume": "430", "number": "2", "publisher": "Royal Astronomical Society", "pagerange": "924-933", "id_number": "CaltechAUTHORS:20130613-091253896", "issn": "0035-8711", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20130613-091253896", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "Australian Research Council Discovery Project grants" }, { "agency": "Australian Research Council QEII Fellowship" }, { "agency": "Gregg Thompson Dark Energy Travel Fund" }, { "agency": "NASA" }, { "agency": "CAASTRO" } ] }, "local_group": { "items": [ { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1093/mnras/sts608", "primary_object": { "basename": "MNRAS-2013-Contreras-924-33.pdf", "url": "https://authors.library.caltech.edu/records/37n90-87b86/files/MNRAS-2013-Contreras-924-33.pdf" }, "resource_type": "article", "pub_year": "2013", "author_list": "Contreras, Carlos; Forster, Karl; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/cy6pk-13941", "eprint_id": 37905, "eprint_status": "archive", "datestamp": "2023-08-22 08:56:41", "lastmod": "2023-10-23 19:31:35", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Gezari-S", "name": { "family": "Gezari", "given": "S." }, "orcid": "0000-0003-3703-5154" }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. C." }, "orcid": "0000-0002-8650-1644" }, { "id": "Forster-K", "name": { "family": "Forster", "given": "K." }, "orcid": "0000-0001-5800-5531" }, { "id": "Neill-J-D", "name": { "family": "Neill", "given": "J. D." }, "orcid": "0000-0002-0466-1119" }, { "id": "Huber-M-E", "name": { "family": "Huber", "given": "M." } }, { "id": "Heckman-T-M", "name": { "family": "Heckman", "given": "T." } }, { "id": "Bianchi-L", "name": { "family": "Bianchi", "given": "L." } }, { "id": "Morrissey-P", "name": { "family": "Morrissey", "given": "P." }, "orcid": "0000-0001-8177-1023" }, { "id": "Neff-S-G", "name": { "family": "Neff", "given": "S. G." } }, { "id": "Seibert-M", "name": { "family": "Seibert", "given": "M." }, "orcid": "0000-0002-1143-5515" }, { "id": "Schiminovich-D", "name": { "family": "Schiminovich", "given": "D." } }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "T. K." } }, { "id": "Burgett-W-S", "name": { "family": "Burgett", "given": "W. S." } }, { "id": "Chambers-K-C", "name": { "family": "Chambers", "given": "K. C." }, "orcid": "0000-0001-6965-7789" }, { "id": "Kaiser-N", "name": { "family": "Kaiser", "given": "N." }, "orcid": "0000-0001-6511-4306" }, { "id": "Magnier-E-A", "name": { "family": "Magnier", "given": "E. A." }, "orcid": "0000-0002-7965-2815" }, { "id": "Price-P-A", "name": { "family": "Price", "given": "P. A." } }, { "id": "Tonry-J-L", "name": { "family": "Tonry", "given": "J. L." }, "orcid": "0000-0003-2858-9657" } ] }, "title": "The GALEX Time Domain Survey. I. Selection and Classification of Over a Thousand Ultraviolet Variable Sources", "ispublished": "pub", "full_text_status": "public", "keywords": "surveys; ultraviolet: general", "note": "\u00a9 2013 American Astronomical Society. Received 2012 November 19; accepted 2013 February 1; published 2013 March 7. We thank the anonymous referee for their constructive comments which improved the paper. GALEX (Galaxy Evolution\nExplorer) is a NASA Small Explorer, launched in 2003\nApril. We gratefully acknowledge NASA's support for construction, operation, and science analysis for the GALEX mission, developed in cooperation with the Centre National d'Etudes Spatiales of France and the Korean Ministry of Science and Technology. The Pan-STARRS1 survey has been made possible through contributions of the Institute for Astronomy, the University of Hawaii, the Pan-STARRS Project Office, the Max Planck Society and its participating institutes, the Max Planck Institute for Astronomy, Heidelberg and the Max Planck Institute for Extraterrestrial Physics, Garching, The Johns Hopkins University, Durham University, the University of Edinburgh, Queen's University Belfast, the Harvard-Smithsonian Center for Astrophysics, and the Las Cumbres Observatory Global Telescope Network, Incorporated, the National Central University of Taiwan, and the National Aeronautics and Space Administration under grant No. NNX08AR22G issued through the Planetary Science Division of the NASA Science Mission Directorate.\n\nPublished - 0004-637X_766_1_60.pdf
", "abstract": "We present the selection and classification of over a thousand ultraviolet (UV) variable sources discovered in\n\u223c40 deg^2 of GALEX Time Domain Survey (TDS) NUV images observed with a cadence of 2 days and a baseline\nof observations of \u223c3 years. The GALEX TDS fields were designed to be in spatial and temporal coordination with\nthe Pan-STARRS1 Medium Deep Survey, which provides deep optical imaging and simultaneous optical transient\ndetections via image differencing.We characterize the GALEX photometric errors empirically as a function of mean\nmagnitude, and select sources that vary at the 5\u03c3 level in at least one epoch. We measure the statistical properties\nof the UV variability, including the structure function on timescales of days and years. We report classifications for\nthe GALEX TDS sample using a combination of optical host colors and morphology, UV light curve characteristics,\nand matches to archival X-ray, and spectroscopy catalogs. We classify 62% of the sources as active galaxies (358\nquasars and 305 active galactic nuclei), and 10% as variable stars (including 37 RR Lyrae, 53 M dwarf flare stars, and 2 cataclysmic variables). We detect a large-amplitude tail in the UV variability distribution for M-dwarf flare stars and RR Lyrae, reaching up to |\u0394m| = 4.6 mag and 2.9 mag, respectively. The mean amplitude of the structure function for quasars on year timescales is five times larger than observed at optical wavelengths. The remaining unclassified sources include UV-bright extragalactic transients, two of which have been spectroscopically confirmed to be a young core-collapse supernova and a flare from the tidal disruption of a star by dormant supermassive black hole. We calculate a surface density for variable sources in the UV with NUV < 23 mag and |\u0394m| > 0.2 mag of \u223c8.0, 7.7, and 1.8 deg^(\u22122) for quasars, active galactic nuclei, and RR Lyrae stars, respectively. We also calculate a surface density rate in the UV for transient sources, using the effective survey time at the cadence appropriate to each class, of \u223c15 and 52 deg^(\u22122) yr^(\u22121) for M dwarfs and extragalactic transients, respectively.", "date": "2013-03-20", "date_type": "published", "publication": "Astrophysical Journal", "volume": "766", "number": "1", "publisher": "American Astronomical Society", "pagerange": "Art. No. 60", "id_number": "CaltechAUTHORS:20130412-100925592", "issn": "0004-637X", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20130412-100925592", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA", "grant_number": "NNX08AR22G" } ] }, "local_group": { "items": [ { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1088/0004-637X/766/1/60", "primary_object": { "basename": "0004-637X_766_1_60.pdf", "url": "https://authors.library.caltech.edu/records/cy6pk-13941/files/0004-637X_766_1_60.pdf" }, "resource_type": "article", "pub_year": "2013", "author_list": "Gezari, S.; Martin, D. C.; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/26mnw-hb118", "eprint_id": 39074, "eprint_status": "archive", "datestamp": "2023-08-19 18:57:00", "lastmod": "2023-10-24 16:22:05", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Poole-G-B", "name": { "family": "Poole", "given": "Gregory B." } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted K." } } ] }, "title": "The WiggleZ Dark Energy Survey: probing the epoch of radiation\n domination using large-scale structure", "ispublished": "pub", "full_text_status": "public", "keywords": "surveys\n cosmological parameters\n large-scale structure of Universe", "note": "\u00a9 2013 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. First published online: January 4, 2013. Accepted 2012 November 16. Received 2012 November 16; in original form 2012 August 31. We thank Francesco Montesano for his constructive and insightful examination of our manuscript. We acknowledge financial support from the Australian Research Council through Discovery Project grants DP0772084 and DP1093738 and Linkage International travel grant LX0881951. GBP thanks Simon Mutch for his help with developing the MCMC code used for the analysis in this study. CB acknowledges\nthe support of the Australian Research Council through\nthe award of a Future Fellowship. SC and DJC acknowledge the support of Australian Research Council QEII Fellowships. MJD and TD thank the Gregg Thompson Dark Energy Travel Fund for financial support. The Galaxy Evolution Explorer (GALEX) is a NASA Small Explorer, launched in 2003 April. We gratefully acknowledge\nNASA\u00d5's support for construction, operation and science analysis for the GALEX mission, developed in cooperation with the Centre National d'Etudes Spatiales of France and the Korean Ministry of Science and Technology.We thank the Anglo-Australian Telescope\nAllocation Committee for supporting theWiggleZ survey over nine\nsemesters, and we are very grateful for the dedicated work of the\nstaff of the Australian Astronomical Observatory in the development\nand support of the AAOmega spectrograph, and the running\nof the Anglo-Australian Telescope.We are also grateful for support from the Centre for All-sky Astrophysics, an Australian Research\nCouncil Centre of Excellence funded by grant CE11000102.\n\nPublished - MNRAS-2013-Poole-1902-12.pdf
", "abstract": "We place the most robust constraint to date on the scale of the turnover in the cosmological matter power spectrum using data from the WiggleZ Dark Energy Survey. We find this feature to lie at a scale of k_0 = 0.0160^(+ 0.0035)_(\u2212 0.0041) (h Mpc^\u22121) (68 per cent confidence) for an effective redshift of z_(eff) = 0.62 and obtain from this the first ever turnover-derived distance and cosmology constraints: a measure of the cosmic distance\u2013redshift relation in units of the horizon scale at the redshift of radiation\u2013matter equality (r_H) of D_V(z_(eff) = 0.62)/r_H = 18.3^(+6.3)_(\u22123.3) and, assuming a prior on the number of extra relativistic degrees of freedom N_(eff) = 3, constraints on the cosmological matter density parameter \u03a9_M\u2009h^2 = 0.136^(+0.026)_(\u22120.052) and on the redshift of matter\u2013radiation equality z_(eq) = 3274^(+631)_(\u22121260). We stress that these results are obtained within the theoretical framework of Gaussian primordial fluctuations and linear large-scale bias. With this caveat, all results are in excellent agreement with the predictions of standard \u039bCDM models. Our constraints on the logarithmic slope of the power spectrum on scales larger than the turnover are bounded in the lower limit with values only as low as \u22121 allowed, with the prediction of P(k) \u221d k from standard \u039bCDM models easily accommodated by our results. Finally, we generate forecasts to estimate the achievable precision of future surveys at constraining k_0, \u03a9_M\u2009h^2, z_(eq) and N_(eff). We find that the Baryon Oscillation Spectroscopic Survey should substantially improve upon the WiggleZ turnover constraint, reaching a precision on k_0 of \u00b19 per cent (68 per cent confidence), translating to precisions on \u03a9_M\u2009h^2 and z_(eq) of \u00b110 per cent (assuming a prior N_(eff) = 3) and on Neff of + 78\u2212 56 per cent (assuming a prior \u03a9_M\u2009h^2 = 0.135). This represents sufficient precision to sharpen the constraints on N_(eff) from WMAP, particularly in its upper limit. For Euclid, we find corresponding attainable precisions on (k_0, \u03a9_M\u2009h^2,\u2009N_(eff)) of (3, 4,^(+ 17)_(\u2212 21)) per cent. This represents a precision approaching our forecasts for the Planck Surveyor.", "date": "2013-03-01", "date_type": "published", "publication": "Monthly Notices of the Royal Astronomical Society", "volume": "429", "number": "3", "publisher": "Royal Astronomical Society", "pagerange": "1902-1912", "id_number": "CaltechAUTHORS:20130625-101556024", "issn": "0035-8711", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20130625-101556024", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "Australian Research Council Discovery Project", "grant_number": "DP0772084" }, { "agency": "Australian Research Council Discovery Project", "grant_number": "DP1093738" }, { "agency": "Linkage International Travel Grant", "grant_number": "LX0881951" }, { "agency": "Australian Research Council Future Fellowship" }, { "agency": "Australian Research Council QEII Fellowships" }, { "agency": "Gregg Thompson Dark Energy Travel Fund" }, { "agency": "Australian Research Council Centre of Excellence", "grant_number": "CE110001020" } ] }, "local_group": { "items": [ { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1093/mnras/sts431", "primary_object": { "basename": "MNRAS-2013-Poole-1902-12.pdf", "url": "https://authors.library.caltech.edu/records/26mnw-hb118/files/MNRAS-2013-Poole-1902-12.pdf" }, "resource_type": "article", "pub_year": "2013", "author_list": "Poole, Gregory B.; Forster, Karl; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/s6fk1-zff26", "eprint_id": 36337, "eprint_status": "archive", "datestamp": "2023-08-19 13:31:18", "lastmod": "2023-10-20 23:01:34", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Parkinson-D", "name": { "family": "Parkinson", "given": "David" } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted K." } } ] }, "title": "The WiggleZ Dark Energy Survey: Final data release and cosmological results", "ispublished": "pub", "full_text_status": "public", "note": "\u00a9 2012 American Physical Society.\n\nReceived 31 August 2012; published 16 November 2012.\n\nD. P. thanks Antony Lewis, Andrew Liddle and Beth Reid\nfor helpful discussions. We acknowledge financial support\nfrom the Australian Research Council through Discovery\nProject Grants No. DP0772084 and No. DP1093738, funding\nthe positions of S. B., D. P., M. P., G. P. and T.M. D., and\nLinkage International travel Grant No. LX0881951. D.C.\nand S.C. acknowledge the support of an Australian\nResearch Council through QEII Fellowships. M. J.D. and\nT. M.D. thank the Gregg Thompson Dark Energy Travel\nFund for financial support. GALEX (the Galaxy Evolution\nExplorer) is a NASA Small Explorer, launched in 2003\nApril. We gratefully acknowledge NASAs support for\nconstruction, operation and science analysis for the\nGALEX mission, developed in cooperation with the\nCentre National dEtudes Spatiales of France and the\nKorean Ministry of Science and Technology. Finally,\nwe thank the Anglo-Australian Telescope Allocation\nCommittee for supporting the WiggleZ survey over nine\nsemesters, and we are very grateful for the dedicated work\nof the staff of the Australian Astronomical Observatory in\nthe development and support of the AAOmega spectrograph,\nand the running of the AAT.\n\nPublished - PhysRevD.86.103518.pdf
", "abstract": "This paper presents cosmological results from the final data release of the WiggleZ Dark Energy Survey. We perform full analyses of different cosmological models using the WiggleZ power spectra measured at z=0.22, 0.41, 0.60, and 0.78, combined with other cosmological data sets. The limiting factor in this analysis is the theoretical modeling of the galaxy power spectrum, including nonlinearities, galaxy bias, and redshift-space distortions. In this paper we assess several different methods for modeling the theoretical power spectrum, testing them against the Gigaparsec WiggleZ simulations (GiggleZ). We fit for a base set of six cosmological parameters, {\u03a9_(b)h^2,\u03a9_(CDM)h^2,H_0,\u03c4,A_s,n_s}, and five supplementary parameters {n_(run),r,w,\u03a9_k,\u2211m_\u03bd}. In combination with the cosmic microwave background, our results are consistent with the \u039bCDM concordance cosmology, with a measurement of the matter density of \u03a9m=0.29\u00b10.016 and amplitude of fluctuations \u03c3_8=0.825\u00b10.017. Using WiggleZ data with cosmic microwave background and other distance and matter power spectra data, we find no evidence for any of the extension parameters being inconsistent with their \u039bCDM model values. The power spectra data and theoretical modeling tools are available for use as a module for CosmoMC, which we here make publicly available at http://smp.uq.edu.au/wigglez-data. We also release the data and random catalogs used to construct the baryon acoustic oscillation correlation function.", "date": "2012-11-16", "date_type": "published", "publication": "Physical Review D", "volume": "86", "number": "10", "publisher": "American Physical Society", "pagerange": "Art. No. 103518", "id_number": "CaltechAUTHORS:20130111-161415492", "issn": "2470-0010", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20130111-161415492", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "Australian Research Council", "grant_number": "DP0772084" }, { "agency": "Australian Research Council", "grant_number": "DP1093738" }, { "agency": "Linkage International travel Grant", "grant_number": "LX0881951" }, { "agency": "Australian Research Council QEII Fellowship" }, { "agency": "Gregg Thompson Dark Energy Travel Fund" } ] }, "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" }, { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1103/PhysRevD.86.103518", "primary_object": { "basename": "PhysRevD.86.103518.pdf", "url": "https://authors.library.caltech.edu/records/s6fk1-zff26/files/PhysRevD.86.103518.pdf" }, "resource_type": "article", "pub_year": "2012", "author_list": "Parkinson, David; Forster, Karl; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/nwb92-mpw64", "eprint_id": 35892, "eprint_status": "archive", "datestamp": "2023-08-22 07:11:39", "lastmod": "2023-10-20 21:53:49", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Shara-M-M", "name": { "family": "Shara", "given": "Michael M." } }, { "id": "Doyle-T-F", "name": { "family": "Mizusawa", "given": "Trisha" }, "orcid": "0000-0001-7182-5307" }, { "id": "Wehinger-P", "name": { "family": "Wehinger", "given": "Peter" } }, { "id": "Zurek-David", "name": { "family": "Zurek", "given": "David" } }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "Christopher D." }, "orcid": "0000-0002-8650-1644" }, { "id": "Neill-J-D", "name": { "family": "Neill", "given": "James D." }, "orcid": "0000-0002-0466-1119" }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Seibert-M", "name": { "family": "Seibert", "given": "Mark" }, "orcid": "0000-0002-1143-5515" } ] }, "title": "AT Cnc: A Second Dwarf Nova with a Classical Nova Shell", "ispublished": "pub", "full_text_status": "public", "keywords": "novae, cataclysmic variables; stars: individual (AT Cancri)", "note": "\u00a9 2012 American Astronomical Society. Received 2012 July 31; accepted 2012 August 23; published 2012 October 8. Galaxy Evolution Explorer (GALEX) is a NASA Small Explorer,\nlaunched in 2003 April. We gratefully acknowledge NASA's support for construction, operation, and science analysis\nfor the GALEX mission. M.M.S. gratefully acknowledges helpful conversations about AT Cnc and dwarf nova shells with Howard Bond and Christian Knigge.\n\nPublished - 0004-637X_758_2_121.pdf
", "abstract": "We are systematically surveying all known and suspected Z Cam-type dwarf novae for classical nova shells. This survey is motivated by the discovery of the largest known classical nova shell, which surrounds the archetypal dwarf nova Z Camelopardalis. The Z Cam shell demonstrates that at least some dwarf novae must have undergone classical nova eruptions in the past, and that at least some classical novae become dwarf novae long after their nova thermonuclear outbursts, in accord with the hibernation scenario of cataclysmic binaries. Here we report the detection of a fragmented \"shell,\" 3 arcmin in diameter, surrounding the dwarf nova AT Cancri. This second discovery demonstrates that nova shells surrounding Z Cam-type dwarf novae cannot be very rare. The shell geometry is suggestive of bipolar, conical ejection seen nearly pole-on. A spectrum of the brightest AT Cnc shell knot is similar to that of the ejecta of the classical nova GK Per, and of Z Cam, dominated by [N II] emission. Galaxy Evolution Explorer FUV imagery reveals a similar-sized, FUV-emitting shell. We determine a distance of 460 pc to AT Cnc, and an upper limit to its ejecta mass of ~5 \u00d7 10^(\u20135) M_\u2609, typical of classical novae.", "date": "2012-10-20", "date_type": "published", "publication": "Astrophysical Journal", "volume": "758", "number": "2", "publisher": "American Astronomical Society", "pagerange": "Art. No. 121", "id_number": "CaltechAUTHORS:20121210-100445844", "issn": "0004-637X", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20121210-100445844", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA" } ] }, "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" }, { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1088/0004-637X/758/2/121", "primary_object": { "basename": "0004-637X_758_2_121.pdf", "url": "https://authors.library.caltech.edu/records/nwb92-mpw64/files/0004-637X_758_2_121.pdf" }, "resource_type": "article", "pub_year": "2012", "author_list": "Shara, Michael M.; Mizusawa, Trisha; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/h84m8-na451", "eprint_id": 34519, "eprint_status": "archive", "datestamp": "2023-08-22 06:48:35", "lastmod": "2023-10-19 20:42:25", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Blake-C", "name": { "family": "Blake", "given": "Chris" } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted K." } } ] }, "title": "The WiggleZ Dark Energy Survey: joint measurements of the expansion and growth history at z < 1", "ispublished": "pub", "full_text_status": "public", "keywords": "surveys; distance scale; large-scale structure of Universe", "note": "\u00a9 2012 The Authors. Monthly Notices of the Royal Astronomical Society \u00a9 2012 RAS.\n\nAccepted 2012 June 7. Received 2012 May 25; in original form 2012 April 16.\nArticle first published online: 19 Jul. 2012.\nWe thank the anonymous referee for very useful feedback which greatly improved the presentation of this paper. CB acknowledges useful discussions with Eric Linder, Berian James, Eiichiro Komatsu, David Rapetti, Steve Allen, Eyal Kazin, Licia Verde and Raul Jimenez, and thanks the astronomy groups at Berkeley and Stanford for hospitality during the completion of this work. We acknowledge financial support from the Australian Research Council\nthrough Discovery Project grants DP0772084 and DP1093738\nand Linkage International travel grant LX0881951. SC and DC\nacknowledge the support of an Australian Research Council QEII Fellowship. We are also grateful for support from the Centre for All-sky Astrophysics, an Australian Research Council Centre of Excellence funded by grant CE11E0090.\n\nPublished - mnr21473.pdf
", "abstract": "We perform a joint determination of the distance\u2013redshift relation and cosmic expansion rate at redshifts z = 0.44, 0.6 and 0.73 by combining measurements of the baryon acoustic peak and Alcock\u2013Paczynski distortion from galaxy clustering in the WiggleZ Dark Energy Survey, using a large ensemble of mock catalogues to calculate the covariance between the measurements. We find that D_A(z) = (1205 \u00b1 114, 1380 \u00b1 95, 1534 \u00b1 107)\u2009Mpc and H(z) = (82.6 \u00b1 7.8, 87.9 \u00b1 6.1, 97.3 \u00b1 7.0)\u2009km\u2009s^(\u22121)\u2009Mpc^(\u22121) at these three redshifts. Further combining our results with other baryon acoustic oscillation and distant supernovae data sets, we use a Monte Carlo Markov Chain technique to determine the evolution of the Hubble parameter H(z) as a stepwise function in nine redshift bins of width \u0394z = 0.1, also marginalizing over the spatial curvature. Our measurements of H(z), which have precision better than 7 per cent in most redshift bins, are consistent with the expansion history predicted by a cosmological constant dark energy model, in which the expansion rate accelerates at redshift z < 0.7.", "date": "2012-09-01", "date_type": "published", "publication": "Monthly Notices of the Royal Astronomical Society", "volume": "425", "number": "1", "publisher": "Royal Astronomical Society", "pagerange": "405-414", "id_number": "CaltechAUTHORS:20120927-133201364", "issn": "0035-8711", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20120927-133201364", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "Australian Research Council", "grant_number": "DP0772084" }, { "agency": "Australian Research Council", "grant_number": "DP1093738" }, { "agency": "Linkage International Travel Grant", "grant_number": "LX0881951" }, { "agency": "Australian Research Council QEII Fellowship" }, { "agency": "Centre for All-sky Astrophysics" }, { "agency": "Australian Research Council Centre of Excellence", "grant_number": "CE11E0090" } ] }, "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" }, { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1111/j.1365-2966.2012.21473.x", "primary_object": { "basename": "mnr21473.pdf", "url": "https://authors.library.caltech.edu/records/h84m8-na451/files/mnr21473.pdf" }, "resource_type": "article", "pub_year": "2012", "author_list": "Blake, Chris; Forster, Karl; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/vsqbk-svg65", "eprint_id": 31777, "eprint_status": "archive", "datestamp": "2023-08-19 10:56:38", "lastmod": "2023-10-17 21:08:00", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Gezari-S", "name": { "family": "Gezari", "given": "S." }, "orcid": "0000-0003-3703-5154" }, { "id": "Forster-K", "name": { "family": "Forster", "given": "K." }, "orcid": "0000-0001-5800-5531" }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. C." }, "orcid": "0000-0002-8650-1644" }, { "id": "Neill-J-D", "name": { "family": "Neill", "given": "J. D." }, "orcid": "0000-0002-0466-1119" } ] }, "title": "An ultraviolet\u2013optical flare from the tidal disruption of a helium-rich stellar core", "ispublished": "pub", "full_text_status": "public", "keywords": "Astronomy", "note": "\u00a9 2012 Macmillan Publishers Limited.\nReceived 8 November 2011; accepted 23 February 2012.\nPublished online 2 May 2012.\n\nWe thank H. Tananbaum for approving our Chandra Director's Discretionary Time request. We are grateful to G. Lodato for providing the tidal disruption event models in tabular form, and to S. Moran for running software to calculate the host-galaxy K-corrections. We thank R. E. Williams for discussions on the line emission in the spectra. S.G. was supported by NASA through a Hubble Fellowship grant awarded by the Space Telescope Science Institute, which is operated by AURA Inc. for NASA. Partial support for this work was provided by the National Science Foundation. The PS1 survey has been made possible through contributions of the Institute for Astronomy, the University of Hawaii, the Pan-STARRS Project Office, the Max-Planck Society and its participating institutes, The Johns Hopkins University, Durham University, the University of Edinburgh, Queen's University Belfast, the Harvard-Smithsonian Center for Astrophysics, the Las Cumbres Observatory Global Telescope Network Inc. and the National Central University of Taiwan, and by NASA under a grant issued through the Planetary Science Division of the NASA Science Mission Directorate. We acknowledge NASA's support for construction, operation, and science analysis of the GALEX mission, which was developed in cooperation with Centre National d'Etudes Spatiales of France and the Korean Ministry of Science and Technology. Some of the observations reported here were obtained at the MMT Observatory, which is a joint facility of the Smithsonian Institution and the University of Arizona, and at the Liverpool Telescope, which is operated with financial support from the UK Science and Technology Facilities Council. The computations in this paper were run on the Odyssey cluster supported by the FAS Science Division Research Computing Group at Harvard University. R.J.F. is a Clay Fellow. Author Contributions: S.G. designed the observations and the transient detection pipeline for the GALEX TDS, and measured the ultraviolet photometry of PS1-10jh. K.F. and J.D.N coordinated, and D.C.M. facilitated, the GALEX TDS observations. A.R. designed the PhotPipe transient detection pipeline hosted by Harvard/CfA for the PS1 Medium Deep Survey (MDS), and measured the optical photometry of PS1-10jh. R.C. designed, implemented and analysed the MMT optical spectroscopy observations, and contributed to the operation of PhotPipe and the visual inspection of transient alerts. E.B. proposed and facilitated the MMT observations. M.E.H., G.N., D.S. and R.J.F. contributed to the operation of PhotPipe and the visual inspection of transient alerts. P.J.C., R.J.F., G.H.M., L.C. and A.S. contributed to the MMT observations. S.J.S. designed, and K.S. operated, the transient pipeline for PS1 MDS hosted by Queen's University Belfast. C.W.S., J.L.T. and W.M.W.-V. facilitated the transient pipelines for PS1 MDS. W.S.B., K.C.C., T.G., J.N.H., N.K., R.-P.K., E.A.M., J.S.M., P.A.P., C.W.S. and J.L.T. helped build the PS1 system. S.G. requested the Director's Discretionary Time Chandra X-ray observation and analysed the data. A.L. obtained the Liverpool Telescope optical imaging observations and analysed the data, and stimulated discussions on the nature of the SED of PS1-10jh. S.G. analysed and modelled the multicolour light curve and the SED of PS1-10jh. T.H. and C.N. stimulated discussions on the nature of the disrupted star. The paper was organized and written by S.G., and all authors provided feedback on the manuscript.\n\nSubmitted - 1205.0252.pdf
Supplemental Material - nature10990-s1.pdf
", "abstract": "The flare of radiation from the tidal disruption and accretion of a star can be used as a marker for supermassive black holes that otherwise lie dormant and undetected in the centres of distant galaxies. Previous candidate flares have had declining light curves in good agreement with expectations, but with poor constraints on the time of disruption and the type of star disrupted, because the rising emission was not observed. Recently, two 'relativistic' candidate tidal disruption events were discovered, each of whose extreme X-ray luminosity and synchrotron radio emission were interpreted as the onset of emission from a relativistic jet. Here we report a luminous ultraviolet\u2013optical flare from the nuclear region of an inactive galaxy at a redshift of 0.1696. The observed continuum is cooler than expected for a simple accreting debris disk, but the well-sampled rise and decay of the light curve follow the predicted mass accretion rate and can be modelled to determine the time of disruption to an accuracy of two days. The black hole has a mass of about two million solar masses, modulo a factor dependent on the mass and radius of the star disrupted. On the basis of the spectroscopic signature of ionized helium from the unbound debris, we determine that the disrupted star was a helium-rich stellar core.", "date": "2012-05-10", "date_type": "published", "publication": "Nature", "volume": "485", "number": "7397", "publisher": "Nature Publishing Group", "pagerange": "217-220", "id_number": "CaltechAUTHORS:20120601-115631407", "issn": "0028-0836", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20120601-115631407", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA Hubble Fellowship" }, { "agency": "Space Telescope Science Institute" }, { "agency": "NSF" } ] }, "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" }, { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1038/nature10990", "primary_object": { "basename": "1205.0252.pdf", "url": "https://authors.library.caltech.edu/records/vsqbk-svg65/files/1205.0252.pdf" }, "related_objects": [ { "basename": "nature10990-s1.pdf", "url": "https://authors.library.caltech.edu/records/vsqbk-svg65/files/nature10990-s1.pdf" } ], "resource_type": "article", "pub_year": "2012", "author_list": "Gezari, S.; Forster, K.; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/xsptx-ddd06", "eprint_id": 31488, "eprint_status": "archive", "datestamp": "2023-08-19 10:42:04", "lastmod": "2023-10-17 16:37:30", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Riemer-S\u00f8rensen-S", "name": { "family": "Riemer-S\u00f8rensen", "given": "Signe" } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted K." } } ] }, "title": "WiggleZ Dark Energy Survey: Cosmological neutrino mass constraint from blue high-redshift galaxies", "ispublished": "pub", "full_text_status": "public", "note": "\u00a9 2012 American Physical Society. Received 21 December 2011; published 23 April 2012. S. R. S. acknowledges financial support from The Danish Council for Independent Research|Natural\nSciences. We acknowledge financial support from the\nAustralian Research Council through Discovery Project\nGrant Nos. DP0772084 and DP1093738. This research\nwas supported by CAASTRO: [46] GALEX (the Galaxy\nEvolution Explorer) is a NASA Small Explorer, launched\nin April 2003. We gratefully acknowledge NASA's support\nfor construction, operation and science analysis for the\nGALEX mission, developed in cooperation with the\nCentre National d'Etudes Spatiales de France and the\nKorean Ministry of Science and Technology. We thank\nthe Anglo-Australian Telescope Allocation Committee\nfor supporting the WiggleZ survey over 9 semesters, and\nwe are very grateful for the dedicated work of the staff of\nthe Australian Astronomical Observatory in the development\nand support of the AAOmega spectrograph, and the\nrunning of the AAT.\n\nPublished - RiemerSorensen2012p18065Phys_Rev_D.pdf
", "abstract": "The absolute neutrino mass scale is currently unknown, but can be constrained by cosmology. The WiggleZ high redshift, star-forming, and blue galaxy sample offers a complementary data set to previous surveys for performing these measurements, with potentially different systematics from nonlinear structure formation, redshift-space distortions, and galaxy bias. We obtain a limit of \u2211m_\u03bd<0.60\u2009\u2009eV (95% confidence) for WiggleZ+Wilkinson\u2009Microwave\u2009Anisotropy\u2009Probe. Combining with priors on the Hubble parameter and the baryon acoustic oscillation scale gives \u2211m_\u03bd<0.29\u2009\u2009eV, which is the strongest neutrino mass constraint derived from spectroscopic galaxy redshift surveys.", "date": "2012-04-23", "date_type": "published", "publication": "Physical Review D", "volume": "85", "number": "8", "publisher": "American Physical Society", "pagerange": "Art. No. 081101", "id_number": "CaltechAUTHORS:20120515-154321243", "issn": "2470-0010", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20120515-154321243", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "Danish Council for Independent Research-Natural Sciences" }, { "agency": "Australian Research Council (Australia) Discovery Project", "grant_number": "DP0772084" }, { "agency": "Australian Research Council (Australia) Discovery Project", "grant_number": "DP1093738" }, { "agency": "CAASTRO" }, { "agency": "NASA" } ] }, "local_group": { "items": [ { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1103/PhysRevD.85.081101", "primary_object": { "basename": "RiemerSorensen2012p18065Phys_Rev_D.pdf", "url": "https://authors.library.caltech.edu/records/xsptx-ddd06/files/RiemerSorensen2012p18065Phys_Rev_D.pdf" }, "resource_type": "article", "pub_year": "2012", "author_list": "Riemer-S\u00f8rensen, Signe; Forster, Karl; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/cnvkm-vaw08", "eprint_id": 31442, "eprint_status": "archive", "datestamp": "2023-08-22 05:11:47", "lastmod": "2023-10-17 16:35:38", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Li-I-hui", "name": { "family": "Li", "given": "I. H." } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted" } } ] }, "title": "The WiggleZ Dark Energy Survey: Galaxy Evolution at 0.25 \u2264 z \u2264 0.75 Using the Second Red-Sequence Cluster Survey", "ispublished": "pub", "full_text_status": "public", "keywords": "galaxies: evolution; galaxies: luminosity function, mass function; galaxies: photometry", "note": "\u00a9 2012 American Astronomical Society.\n\nReceived 2011 April 20; accepted 2012 January 3; published 2012 February 17.\n\nThe RCS2 data in this paper are based on observations obtained with MegaPrime/MegaCam, a joint project of CFHT\nand CEA/DAPNIA, at the Canada\u2013France\u2013Hawaii Telescope\n(CFHT) which is operated by the National Research Council\n(NRC) of Canada, the Institute National des Sciences de\nl'Univers of the Centre National de la Recherche Scientifique of France, and the University of Hawaii. I.H.L. thanks the Australian Research Council Linkage International Grant for the early development of this work. I.H.L. and H.K.C.Y. thank the Academia Sinica Institute of Astronomy and Astrophysics, Taiwan, for their hospitality during the early stage of the writing of the paper. The RCS and the research of H.K.C.Y. are supported by grants from the Natural Science and Engineering Research Council of Canada and the Canada Research Chair program. TheWiggleZ team acknowledges financial support from the Australian Research Council through Discovery Project grants. The WiggleZ survey would not have been possible without the dedicated work of the staff of the Anglo-Australian Observatory in the development and support of the AAOmega spectrograph, and the running of the AAT.\n\nPublished - Li2012p18104Astrophys_J.pdf
", "abstract": "We study the evolution of galaxy populations around the spectroscopic WiggleZ sample of star-forming galaxies at 0.25 \u2264 z \u2264 0.75 using the photometric catalog from the Second Red-Sequence Cluster Survey (RCS2). We probe the optical photometric properties of the net excess neighbor galaxies. The key concept is that the marker galaxies and their neighbors are located at the same redshift, providing a sample of galaxies representing a complete census of galaxies in the neighborhood of star-forming galaxies. The results are compared with those using the RCS WiggleZ Spare-Fibre (RCS-WSF) sample as markers, representing galaxies in cluster environments at 0.25 \u2264 z \u2264 0.45. By analyzing the stacked color-color properties of the WiggleZ neighbor galaxies, we find that their optical colors are not a strong function of indicators of star-forming activities such as EW([O II]) or Galaxy Evolution Explorer (GALEX) near-UV luminosity of the markers. The galaxies around the WiggleZ markers exhibit a bimodal distribution on the color-magnitude diagram, with most of them located in the blue cloud. The optical galaxy luminosity functions (GLFs) of the blue neighbor galaxies have a faint-end slope \u03b1 of ~ \u20131.3, similar to that for galaxies in cluster environments drawn from the RCS-WSF sample. The faint-end slope of the GLF for the red neighbors, however, is ~ \u20130.4, significantly shallower than the ~ \u20130.7 found for those in cluster environments. This suggests that the buildup of the faint end of the red sequence in cluster environments is in a significantly more advanced stage than that in the star-forming and lower galaxy density WiggleZ neighborhoods. We find that the red galaxy fraction (f_red) around the star-forming WiggleZ galaxies has similar values from z ~ 0.3 to z ~ 0.6 with f_red ~ 0.28, but drops to f_red ~ 0.20 at z gsim 0.7. This change of f_red with redshift suggests that there is either a higher rate of star-forming galaxies entering the luminosity-limited sample at z \u2273 0.7, or a decrease in the quenching rate of star formation at that redshift. Comparing to that in a dense cluster environment, the f_red of the WiggleZ neighbors is both considerably smaller and has a more moderate change with redshift, pointing to the stronger and more prevalent environmental influences on galaxy evolution in high-density regions.", "date": "2012-03-10", "date_type": "published", "publication": "Astrophysical Journal", "volume": "747", "number": "2", "publisher": "American Astronomical Society", "pagerange": "91", "id_number": "CaltechAUTHORS:20120511-155437070", "issn": "0004-637X", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20120511-155437070", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "Australian Research Council Linkage International Grant" }, { "agency": "Academia Sinica Institute of Astronomy and Astrophysics (Taiwan)" }, { "agency": "Natural Science and Engineering Research Council of Canada (NSERC)" }, { "agency": "Canada Research Chair program" }, { "agency": "Australian Research Council Discovery Project grants" } ] }, "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" }, { "id": "COSMOS" }, { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1088/0004-637X/747/2/91", "primary_object": { "basename": "Li2012p18104Astrophys_J.pdf", "url": "https://authors.library.caltech.edu/records/cnvkm-vaw08/files/Li2012p18104Astrophys_J.pdf" }, "resource_type": "article", "pub_year": "2012", "author_list": "Li, I. H.; Forster, Karl; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/dvkdk-54b55", "eprint_id": 29076, "eprint_status": "archive", "datestamp": "2023-08-22 04:26:15", "lastmod": "2023-10-24 18:21:03", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Chomiuk-L", "name": { "family": "Chomiuk", "given": "L." }, "orcid": "0000-0002-8400-3705" }, { "id": "Forster-K", "name": { "family": "Forster", "given": "K." }, "orcid": "0000-0001-5800-5531" }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. C." }, "orcid": "0000-0002-8650-1644" }, { "id": "Neill-J-D", "name": { "family": "Neill", "given": "J. D." }, "orcid": "0000-0002-0466-1119" } ] }, "title": "Pan-STARRS1 Discovery of Two Ultraluminous Supernovae at z \u2248 0.9", "ispublished": "pub", "full_text_status": "public", "keywords": "circumstellar matter; stars: magnetars; supernovae: general; supernovae: individual (PS1-10ky, PS1-10awh)", "note": "\u00a9 2011 The American Astronomical Society. Received 2011 July 3; accepted 2011 September 14; published 2011 November 29. \nWe thank S. Balberg, D. Kasen, B. Metzger, R. Quimby, and R. Stoll for helpful insights. Laura Chomiuk is a Jansky Fellow of the National Radio Astronomy Observatory. Ryan J. Foley is supported by a Clay Fellowship. This discovery was enabled using the PS1 System operated by the PS1 Science Consortium (PS1SC) and its member institutions. The PS1 Surveys have been made possible through the combinations of the Institute for Astronomy at the University of Hawaii, The Pan-STARRS Project Office, the Max-Planck Society and its participating institutes, the Max Planck Institute for Astronomy, Heidelberg, and the Max Planck Institute for Extraterrestial Physics, Garching, The Johns Hopkins University, the University of Durham, the University of Edinburgh, the Queen's University of Belfast, the Harvard-Smithsonian Center for Astrophysics, the Las Cumbres Observatory Global Network, and the National Central University of Taiwan. Observations reported here were obtained at the MMT Observatory, a joint facility of the Smithsonian Institution and the University of Arizona. This paper uses data products produced by the OIR Telescope Data Center, supported by the Smithsonian Astrophysical Observatory. The EVLA is run by the National Radio Astronomy Observatory, a facility of the National Science Foundation operated under cooperative agreement by Associated Universities, Inc., Gemini Observatory is operated by the Association of Universities for Research in Astronomy, Inc., under a cooperative agreement with the NSF on behalf of the Gemini partnership: the National Science Foundation (United States), the Science and Technology Facilities Council (United Kingdom), the National Research Council (Canada), CONICYT (Chile), the Australian Research Council (Australia), Minist\u00e9rio da Ci\u00eancia e Tecnologia (Brazil), and Ministerio de Ciencia, Tecnolog\u00eda e Innovaci\u03ccn Productiva (Argentina). Some of the image processing in this paper was run on the Odyssey cluster supported by the FAS Science Division Research Computing Group at Harvard University. We appreciate the excellent support by the staffs at Gemini, MMT, EVLA, and PS1. We are grateful for access to Gemini under programs GN-2010A-Q-30 and GS-2010B-Q-4 (PI: E. Berger) and GN-2010B-Q-34 (PI: J. Tonry). Partial support for this work was provided by National Science Foundation grants AST-1009749 and AST-0807727. Facilities: PS1(GPC1), MMT (Blue Channel Spectrograph, Hectospec), Gemini:Gillett (GMOS), EVLA, GALEX\n\nPublished - Chomiuk2011p16927Astrophys_J.pdf
", "abstract": "We present the discovery of two ultraluminous supernovae (SNe) at z \u2248 0.9 with the Pan-STARRS1 Medium Deep Survey. These SNe, PS1-10ky and PS1-10awh, are among the most luminous SNe ever discovered, comparable to the unusual transients SN 2005ap and SCP 06F6. Like SN 2005ap and SCP 06F6, they show characteristic high luminosities (M_(bol) \u2248 \u201322.5 mag), blue spectra with a few broad absorption lines, and no evidence for H or He. We have constructed a full multi-color light curve sensitive to the peak of the spectral energy distribution in the rest-frame ultraviolet, and we have obtained time series spectroscopy for these SNe. Given the similarities between the SNe, we combine their light curves to estimate a total radiated energy over the course of explosion of (0.9-1.4) \u00d7 10^(51) erg. We find photospheric velocities of 12,000-19,000 km s^(\u20131) with no evidence for deceleration measured across ~3 rest-frame weeks around light curve peak, consistent with the expansion of an optically thick massive shell of material. We show that, consistent with findings for other ultraluminous SNe in this class, radioactive decay is not sufficient to power PS1-10ky, and we discuss two plausible origins for these events: the initial spin-down of a newborn magnetar in a core-collapse SN, or SN shock breakout from the dense circumstellar wind surrounding a Wolf-Rayet star.", "date": "2011-12-20", "date_type": "published", "publication": "Astrophysical Journal", "volume": "743", "number": "2", "publisher": "American Astronomical Society", "pagerange": "Art. No. 114", "id_number": "CaltechAUTHORS:20120201-151340323", "issn": "0004-637X", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20120201-151340323", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "Clay Fellowship" }, { "agency": "Smithsonian Astrophysical Observatory" }, { "agency": "Harvard University" }, { "agency": "Gemini", "grant_number": "GN-2010A-Q-30" }, { "agency": "Gemini", "grant_number": "GS-2010B-Q-4" }, { "agency": "Gemini", "grant_number": "GN-2010B-Q-34" }, { "agency": "NSF", "grant_number": "AST-1009749" }, { "agency": "NSF", "grant_number": "AST-0807727" } ] }, "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" }, { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1088/0004-637X/743/2/114", "primary_object": { "basename": "Chomiuk2011p16927Astrophys_J.pdf", "url": "https://authors.library.caltech.edu/records/dvkdk-54b55/files/Chomiuk2011p16927Astrophys_J.pdf" }, "resource_type": "article", "pub_year": "2011", "author_list": "Chomiuk, L.; Forster, K.; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/z1h2g-06y25", "eprint_id": 29387, "eprint_status": "archive", "datestamp": "2023-08-22 04:17:53", "lastmod": "2023-10-24 22:09:16", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Blake-C", "name": { "family": "Blake", "given": "Chris" } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted K." } } ] }, "title": "The WiggleZ Dark Energy Survey: mapping the distance\u2013redshift\n relation with baryon acoustic oscillations", "ispublished": "pub", "full_text_status": "public", "keywords": "surveys; cosmological parameters; distance scale; large-scale structure of Universe", "note": "\u00a9 2011 The Authors. Monthly Notices of the Royal Astronomical Society \u00a9 2011 RAS. Accepted 2011 August 5. Received 2011 August 4; in original form 2011 July 1. \nArticle first published online: 4 Oct. 2011.\nWe thank the anonymous referee for careful and constructive comments\nthat improved this study.\nWe acknowledge financial support from the Australian Research\nCouncil through Discovery Project grants DP0772084 and\nDP1093738 funding the positions of SB, DP, MP, GP and TMD. SC\nand DC acknowledge the support of the Australian Research Council\nthrough QEII Fellowships. MJD thanks the Gregg Thompson\nDark Energy Travel Fund for financial support.\nWe thank the LasDamas project for making their mock catalogues\npublicly available. In particular EK is much obliged to Cameron\nMcBride for supplying mock catalogues on demand. EK also thanks\nAriel S\u00b4anchez for fruitful lengthy discussions. EK was partially\nsupported by a Google Research Award and NASA Award.\nFB is supported by the Australian Government through the International\nPostgraduate Research Scholarship (IPRS) and by scholarships\nfrom the International Centre for Radio Astronomy Research\n(ICRAR) and the Australian Astronomical Observatory (AAO).\nGALEX is a NASA Small Explorer, launched in 2003 April. We\ngratefully acknowledge NASA's support for construction, operation\nand science analysis for the GALEX mission, developed in cooperation\nwith the Centre National d'Etudes Spatiales of France\nand the Korean Ministry of Science and Technology.\nFinally, the WiggleZ survey would not be possible without the\ndedicated work of the staff of the Australian Astronomical Observatory\nin the development and support of the AAOmega spectrograph,\nand the running of the Anglo-Australian Telescope (AAT).\n\nPublished - Blake2011p17133Mon_Not_R_Astron_Soc.pdf
", "abstract": "We present measurements of the baryon acoustic peak at redshifts z= 0.44, 0.6 and 0.73 in the galaxy correlation function of the final data set of the WiggleZ Dark Energy Survey. We combine our correlation function with lower redshift measurements from the 6-degree Field Galaxy Survey and Sloan Digital Sky Survey, producing a stacked survey correlation function in which the statistical significance of the detection of the baryon acoustic peak is 4.9\u03c3 relative to a zero-baryon model with no peak. We fit cosmological models to this combined baryon acoustic oscillation (BAO) data set comprising six distance\u2013redshift data points, and compare the results with similar cosmological fits to the latest compilation of supernovae (SNe) and cosmic microwave background (CMB) data. The BAO and SNe data sets produce consistent measurements of the equation-of-state w of dark energy, when separately combined with the CMB, providing a powerful check for systematic errors in either of these distance probes. Combining all data sets we determine w=\u22121.03 \u00b1 0.08 for a flat universe, consistent with a cosmological constant model. Assuming dark energy is a cosmological constant and varying the spatial curvature, we find \u03a9_k=\u22120.004 \u00b1 0.006.", "date": "2011-12", "date_type": "published", "publication": "Monthly Notices of the Royal Astronomical Society", "volume": "418", "number": "3", "publisher": "Royal Astronomical Society", "pagerange": "1707-1724", "id_number": "CaltechAUTHORS:20120221-102308327", "issn": "0035-8711", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20120221-102308327", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "Australian Research Council", "grant_number": "DP0772084" }, { "agency": "Australian Research Council", "grant_number": "DP1093738" }, { "agency": "Gregg Thompson Dark Energy Travel Fund" }, { "agency": "Google Research Award" }, { "agency": "NASA" }, { "agency": "Australian Government International Postgraduate Research Scholarship (IPRS)" }, { "agency": "Centre National d'Etudes Spatiales of France" }, { "agency": "Korean Ministry of Science and Technology" }, { "agency": "Australian Astronomical Observatory (AAO)" }, { "agency": "Anglo-Australian Telescope (AAT)" }, { "agency": "International Centre for Radio Astronomy Research (ICRAR)" }, { "agency": "Australian Research Council QEII Fellowships" } ] }, "local_group": { "items": [ { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1111/j.1365-2966.2011.19592.x", "primary_object": { "basename": "Blake2011p17133Mon_Not_R_Astron_Soc.pdf", "url": "https://authors.library.caltech.edu/records/z1h2g-06y25/files/Blake2011p17133Mon_Not_R_Astron_Soc.pdf" }, "resource_type": "article", "pub_year": "2011", "author_list": "Blake, Chris; Forster, Karl; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/3q2wq-nzc16", "eprint_id": 29389, "eprint_status": "archive", "datestamp": "2023-08-22 04:17:58", "lastmod": "2023-10-24 22:09:21", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Blake-C", "name": { "family": "Blake", "given": "Chris" } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted K." } } ] }, "title": "The WiggleZ Dark Energy Survey: measuring the cosmic expansion\n history using the Alcock\u2013Paczynski test and distant supernovae", "ispublished": "pub", "full_text_status": "public", "keywords": "surveys; dark energy; distance scale", "note": "\u00a9 2011 The Authors. Monthly Notices of the Royal Astronomical Society \u00a9 2011 RAS. Accepted 2011 August 6. Received 2011 August 4; in original form 2011 July 1. \nArticle first published online: 4 Oct. 2011.\nWe thank the anonymous referee for helpful comments. CB acknowledges\nuseful discussions with Berian James, Juliana Kwan\nand Arman Shafieloo. We acknowledge financial support from\nthe Australian Research Council through Discovery Project grants\nDP0772084 and DP1093738 and Linkage International travel\ngrant LX0881951. SC acknowledges the support of an Australian\nResearch Council QEII Fellowship. MJD and TMD thank the\nGregg Thompson Dark Energy Travel Fund for financial support.\nGALEX (the Galaxy Evolution Explorer) is a NASA Small\nExplorer, launched in 2003 April. We gratefully acknowledge\nNASA's support for construction, operation and science analysis\nfor the GALEX mission, developed in cooperation with the Centre\nNational d'Etudes Spatiales of France and the Korean Ministry of\nScience and Technology.We thank the Anglo-Australian Telescope\nAllocation Committee for supporting theWiggleZ survey over nine\nsemesters, and we are very grateful for the dedicated work of the\nstaff of the Australian Astronomical Observatory in the development\nand support of the AAOmega spectrograph, and the running\nof the AAT.\n\nPublished - Blake2011p17142Mon_Not_R_Astron_Soc.pdf
", "abstract": "Astronomical observations suggest that today's Universe is dominated by a dark energy of unknown physical origin. One of the most notable results obtained from many models is that dark energy should cause the expansion of the Universe to accelerate: but the expansion rate as a function of time has proved very difficult to measure directly. We present a new determination of the cosmic expansion history by combining distant supernovae observations with a geometrical analysis of large-scale galaxy clustering within the WiggleZ Dark Energy Survey, using the Alcock\u2013Paczynski test to measure the distortion of standard spheres. Our result constitutes a robust and non-parametric measurement of the Hubble expansion rate as a function of time, which we measure with 10\u201315 per cent precision in four bins within the redshift range 0.1 < z < 0.9. We demonstrate, in a manner insensitive to the assumed cosmological model, that the cosmic expansion is accelerating. Furthermore, we find that this expansion history is consistent with a cosmological-constant dark energy.", "date": "2011-12", "date_type": "published", "publication": "Monthly Notices of the Royal Astronomical Society", "volume": "418", "number": "3", "publisher": "Royal Astronomical Society", "pagerange": "1725-1735", "id_number": "CaltechAUTHORS:20120221-113953988", "issn": "0035-8711", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20120221-113953988", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "Australian Research Council", "grant_number": "DP0772084" }, { "agency": "Australian Research Council", "grant_number": "DP1093738" }, { "agency": "Linkage International Travel Grant", "grant_number": "LX0881951" }, { "agency": "Australian Research Council QEII Fellowship" }, { "agency": "Gregg Thompson Dark Energy Travel Fund" }, { "agency": "NASA" }, { "agency": "Centre National d'Etudes Spatiales of France" }, { "agency": "Korean Ministry of Science and Technology" }, { "agency": "Anglo-Australian Telescope (AAT) Allocation Committee" }, { "agency": "Australian Astronomical Observatory (AAO)" } ] }, "local_group": { "items": [ { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1111/j.1365-2966.2011.19606.x", "primary_object": { "basename": "Blake2011p17142Mon_Not_R_Astron_Soc.pdf", "url": "https://authors.library.caltech.edu/records/3q2wq-nzc16/files/Blake2011p17142Mon_Not_R_Astron_Soc.pdf" }, "resource_type": "article", "pub_year": "2011", "author_list": "Blake, Chris; Forster, Karl; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/09z8r-c1348", "eprint_id": 28658, "eprint_status": "archive", "datestamp": "2023-08-22 04:04:52", "lastmod": "2023-10-24 18:03:33", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Wisnioski-E", "name": { "family": "Wisnioski", "given": "Emily" } }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted" } }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "Chris" }, "orcid": "0000-0002-8650-1644" }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" } ] }, "title": "The WiggleZ Dark Energy Survey: high-resolution kinematics of luminous star-forming galaxies", "ispublished": "pub", "full_text_status": "public", "keywords": "galaxies: evolution; galaxies: formation; galaxies: high-redshift; galaxies: kinematics and dynamics", "note": "\u00a9 2011 The Authors. Monthly Notices of the Royal Astronomical Society \u00a9 2011 RAS. Accepted 2011 July 11. Received 2011 July 11; in original form 2011 April 30. \nArticle first published online: 19 Sep. 2011.\n\n\nWe wish to thank M. Colless for three nights of Directors time on IRIS2. We would also like to thank Jim Lyke and Shelley Wright for their help recreating rectification matrices and Andy Green for helpful discussions on data reduction and kinematics. We thank the referee for very valuable comments. We wish to acknowledge financial support from The Australian Research Council (grants DP0772084 and LX0881951 directly for the WiggleZ project, and grant LE0668442 for programming support), Swinburne University of Technology, The University of Queensland and the Anglo-Australian Observatory. The WiggleZ survey would not be possible without the dedicated work of the staff of the Australian Astronomical Observatory in the development and support of the AAOmega spectrograph, and the running of the AAT.\nGALEX is a NASA Small Explorer, launched in 2003 April.\nWe gratefully acknowledge NASA's support for construction,\noperation and science analysis for the GALEX mission, developed in cooperation with the Centre National d'Etudes Spatiales of France and the Korean Ministry of Science and Technology. Some of the data presented herein were obtained at the W. M. Keck Observatory, which is operated as a scientific partnership among the California Institute of Technology, the University of California and the National Aeronautics and Space Administration. The Observatory was made possible by the generous financial support of the W. M. Keck Foundation. The authors wish to recognize and\nacknowledge the very significant cultural role and reverence that the summit of Mauna Kea has always had within the indigenous Hawaiian community. We are most fortunate to have the opportunity to conduct observations from this mountain.\n\nPublished - Wisnioski2011p16544Mon_Not_R_Astron_Soc.pdf
", "abstract": "We report evidence of ordered orbital motion in luminous star-forming galaxies at z~ 1.3. We present integral field spectroscopy (IFS) observations, performed with the OH Suppressing InfraRed Imaging Spectrograph (OSIRIS) system, assisted by laser guide star adaptive optics on the Keck telescope, of 13 star-forming galaxies selected from the WiggleZ Dark Energy Survey. Selected via ultraviolet and [O ii] emission, the large volume of the WiggleZ survey allows the selection of sources which have comparable intrinsic luminosity and stellar mass to IFS samples at z > 2. Multiple 1\u20132 kpc size subcomponents of emission, or 'clumps', are detected within the H\u03b1 spatial emission which extends over 6\u201310 kpc in four galaxies, resolved compact emission (r < 3 kpc) is detected in five galaxies and extended regions of H\u03b1 emission are observed in the remaining four galaxies. We discuss these data in the context of different snapshots in a merger sequence and/or the evolutionary stages of coalescence of star-forming regions in an unstable disc. We find evidence of ordered orbital motion in galaxies as expected from disc models and the highest values of velocity dispersion (\u03c3 > 100 km s^(\u22121)) in the most compact sources. This unique data set reveals that the most luminous star-forming galaxies at z > 1 are gaseous unstable discs indicating that a different mode of star formation could be feeding gas to galaxies at z > 1, and lending support to theories of cold dense gas flows from the intergalactic medium.", "date": "2011-11", "date_type": "published", "publication": "Monthly Notices of the Royal Astronomical Society", "volume": "417", "number": "4", "publisher": "Royal Astronomical Society", "pagerange": "2601-2623", "id_number": "CaltechAUTHORS:20120104-154708326", "issn": "0035-8711", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20120104-154708326", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "Australian Research Council", "grant_number": "DP0772084" }, { "agency": "Australian Research Council", "grant_number": "LX0881951" }, { "agency": "Australian Research Council", "grant_number": "LE0668442" }, { "agency": "W. M. Keck Foundation" }, { "agency": "Swinburne University of Technology" }, { "agency": "University of Queensland" }, { "agency": "Anglo-Australian Observatory" } ] }, "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" } ] }, "doi": "10.1111/j.1365-2966.2011.19429.x", "primary_object": { "basename": "Wisnioski2011p16544Mon_Not_R_Astron_Soc.pdf", "url": "https://authors.library.caltech.edu/records/09z8r-c1348/files/Wisnioski2011p16544Mon_Not_R_Astron_Soc.pdf" }, "resource_type": "article", "pub_year": "2011", "author_list": "Wisnioski, Emily; Wyder, Ted; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/5xwey-c4c56", "eprint_id": 25277, "eprint_status": "archive", "datestamp": "2023-08-22 03:19:39", "lastmod": "2023-10-24 15:45:22", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Blake-C", "name": { "family": "Blake", "given": "Chris" } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "Christopher D." }, "orcid": "0000-0002-8650-1644" }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted K." } } ] }, "title": "The WiggleZ Dark Energy Survey: testing the cosmological model\n with baryon acoustic oscillations at z = 0.6", "ispublished": "pub", "full_text_status": "public", "keywords": "surveys; cosmological parameters; dark energy; large-scale structure of Universe", "note": "\u00a9 2011 The Authors. Monthly Notices of the Royal Astronomical Society \u00a9 2011 RAS. Accepted 2011 May 14. Received 2011 May 13; in original form 2011 February 3. \nArticle first published online: 23 Jun. 2011.\n\n\nWe acknowledge financial support from the Australian Research\nCouncil through Discovery Project grants DP0772084 and\nDP1093738 funding the positions of SB, MP, GBP and TD. SC acknowledges the support of the Australian Research Council through a QEII Fellowship. MJD thanks the Gregg Thompson Dark Energy Travel Fund for financial support. The Galaxy Evolution Explorer (GALEX) is a NASA small explorer,\nlaunched in 2003 April. We gratefully acknowledge NASA's\nsupport for construction, operation and science analysis for the GALEX mission, developed in cooperation with the Centre National d'Etudes Spatiales of France and the Korean Ministry of Science and Technology. Finally, the WiggleZ survey would not be possible without the dedicated work of the staff of the Australian Astronomical Observatory in the development and support of the AAOmega spectrograph,\nand the running of the AAT.\n\nPublished - Blake2011p15716Mon_Not_R_Astron_Soc.pdf
", "abstract": "We measure the imprint of baryon acoustic oscillations (BAOs) in the galaxy clustering pattern at the highest redshift achieved to date, z= 0.6, using the distribution of N= 132 509 emission-line galaxies in the WiggleZ Dark Energy Survey. We quantify BAOs using three statistics: the galaxy correlation function, power spectrum and the band-filtered estimator introduced by Xu et al. The results are mutually consistent, corresponding to a 4.0 per cent measurement of the cosmic distance\u2013redshift relation at z= 0.6 [in terms of the acoustic parameter 'A(z)' introduced by Eisenstein et al., we find A(z= 0.6) = 0.452 \u00b1 0.018]. Both BAOs and power spectrum shape information contribute towards these constraints. The statistical significance of the detection of the acoustic peak in the correlation function, relative to a wiggle-free model, is 3.2\u03c3. The ratios of our distance measurements to those obtained using BAOs in the distribution of luminous red galaxies at redshifts z= 0.2 and 0.35 are consistent with a flat \u039b cold dark matter model that also provides a good fit to the pattern of observed fluctuations in the cosmic microwave background radiation. The addition of the current WiggleZ data results in a \u224830 per cent improvement in the measurement accuracy of a constant equation of state, w, using BAO data alone. Based solely on geometric BAO distance ratios, accelerating expansion (w < \u22121/3) is required with a probability of 99.8 per cent, providing a consistency check of conclusions based on supernovae observations. Further improvements in cosmological constraints will result when the WiggleZ survey data set is complete.", "date": "2011-08", "date_type": "published", "publication": "Monthly Notices of the Royal Astronomical Society", "volume": "415", "number": "3", "publisher": "Royal Astronomical Society", "pagerange": "2892-2909", "id_number": "CaltechAUTHORS:20110909-133640314", "issn": "0035-8711", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20110909-133640314", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "Australian Research Council", "grant_number": "DP0772084" }, { "agency": "Australian Research Council", "grant_number": "DP1093738" }, { "agency": "Gregg Thompson Dark Energy Travel Fund" } ] }, "doi": "10.1111/j.1365-2966.2011.19077.x", "primary_object": { "basename": "Blake2011p15716Mon_Not_R_Astron_Soc.pdf", "url": "https://authors.library.caltech.edu/records/5xwey-c4c56/files/Blake2011p15716Mon_Not_R_Astron_Soc.pdf" }, "resource_type": "article", "pub_year": "2011", "author_list": "Blake, Chris; Forster, Karl; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/gasz3-wgv27", "eprint_id": 25278, "eprint_status": "archive", "datestamp": "2023-08-22 03:19:45", "lastmod": "2023-10-24 15:45:24", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Blake-C", "name": { "family": "Blake", "given": "Chris" } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted K." } } ] }, "title": "The WiggleZ Dark Energy Survey: the growth rate of cosmic structure since redshift z = 0.9", "ispublished": "pub", "full_text_status": "public", "keywords": "surveys; cosmological parameters; large-scale structure of Universe", "note": "\u00a9 2011 The Authors. Monthly Notices of the Royal Astronomical Society \u00a9 2011 RAS. Accepted 2011 April 12. Received 2011 March 26; in original form 2010 December 12. \nArticle first published online: 7 Jun. 2011.\n\n\nWe thank Carlton Baugh, Elise Jennings, Juliana Kwan, David\nParkinson, Will Percival, Roman Scoccimarro and Yong-Seon\nSong for useful comments which influenced and improved the\ndevelopment of this paper. We are particularly grateful to Martin Crocce for providing power spectra for RPT and for helpful comments. We acknowledge financial support from the Australian Research Council through Discovery Project grants funding the positions of SB, MP, GBP and TD. SC acknowledges the support of the Australian Research Council through a QEII Fellowship. MJD and TD thank the Gregg Thompson Dark Energy Travel Fund for financial support. GALEX is a NASA Small Explorer, launched in 2003 April. We\ngratefully acknowledge NASA's support for construction, operation and science analysis for the GALEX mission, developed in cooperation with the Centre National d'Etudes Spatiales of France and the Korean Ministry of Science and Technology. Finally, the WiggleZ Survey would not be possible without the dedicated work of the staff of the Australian Astronomical Observatory in the development and support of the AAOmega spectrograph, and the running of the AAT.\n\nPublished - Blake2011p15720Mon_Not_R_Astron_Soc.pdf
", "abstract": "We present precise measurements of the growth rate of cosmic structure for the redshift range 0.1 < z < 0.9, using redshift-space distortions in the galaxy power spectrum of the WiggleZ Dark Energy Survey. Our results, which have a precision of around 10 per cent in four\nindependent redshift bins, are well fitted by a flat \u039b cold dark matter (\u039bCDM) cosmological model with matter density parameter \u03a9_m = 0.27. Our analysis hence indicates that this model provides a self-consistent description of the growth of cosmic structure through large-scale\nperturbations and the homogeneous cosmic expansion mapped by supernovae and baryon acoustic oscillations. We achieve robust results by systematically comparing our data with\nseveral different models of the quasi-linear growth of structure including empirical models, fitting formulae calibrated to N-body simulations, and perturbation theory techniques. We extract the first measurements of the power spectrum of the velocity divergence field, P_(\u03b8\u03b8) (k),\nas a function of redshift (under the assumption that P_(g\u03b8) (k) = \u2212 \u221aP_(gg)(k)P_(\u03b8\u03b8) (k), where g is the galaxy overdensity field), and demonstrate that the WiggleZ galaxy\u2013mass cross-correlation is consistent with a deterministic (rather than stochastic) scale-independent bias model for WiggleZ galaxies for scales k < 0.3 h Mpc^(\u22121). Measurements of the cosmic growth rate from\nthe WiggleZ Survey and other current and future observations offer a powerful test of the physical nature of dark energy that is complementary to distance\u2013redshift measures such as supernovae and baryon acoustic oscillations.", "date": "2011-08", "date_type": "published", "publication": "Monthly Notices of the Royal Astronomical Society", "volume": "415", "number": "3", "publisher": "Royal Astronomical Society", "pagerange": "2876-2891", "id_number": "CaltechAUTHORS:20110909-135550756", "issn": "0035-8711", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20110909-135550756", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "Australian Research Council" }, { "agency": "Gregg Thompson Dark Energy Travel Fund" }, { "agency": "NASA" } ] }, "local_group": { "items": [ { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1111/j.1365-2966.2011.18903.x", "primary_object": { "basename": "Blake2011p15720Mon_Not_R_Astron_Soc.pdf", "url": "https://authors.library.caltech.edu/records/gasz3-wgv27/files/Blake2011p15720Mon_Not_R_Astron_Soc.pdf" }, "resource_type": "article", "pub_year": "2011", "author_list": "Blake, Chris; Forster, Karl; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/g5a2y-ews42", "eprint_id": 23284, "eprint_status": "archive", "datestamp": "2023-08-22 02:26:57", "lastmod": "2023-10-23 18:58:50", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Kasliwal-M-M", "name": { "family": "Kasliwal", "given": "Mansi M." }, "orcid": "0000-0002-5619-4938" }, { "id": "Kulkarni-S-R", "name": { "family": "Kulkarni", "given": "Shri R." }, "orcid": "0000-0001-5390-8563" }, { "id": "Arcavi-I", "name": { "family": "Arcavi", "given": "I." }, "orcid": "0000-0001-7090-4898" }, { "id": "Quimby-R-M", "name": { "family": "Quimby", "given": "Robert M." }, "orcid": "0000-0001-9171-5236" }, { "id": "Ofek-E-O", "name": { "family": "Ofek", "given": "Eran O." }, "orcid": "0000-0002-6786-8774" }, { "id": "Nugent-P-E", "name": { "family": "Nugent", "given": "Peter E." }, "orcid": "0000-0002-3389-0586" }, { "id": "Jacobsen-J", "name": { "family": "Jacobsen", "given": "Janet" } }, { "id": "Gal-Yam-A", "name": { "family": "Gal-Yam", "given": "Avishay" }, "orcid": "0000-0002-3653-5598" }, { "id": "Green-Y", "name": { "family": "Green", "given": "Yoav" } }, { "id": "Yaron-O", "name": { "family": "Yaron", "given": "Ofer" }, "orcid": "0000-0002-0301-8017" }, { "id": "Fox-D-B", "name": { "family": "Fox", "given": "Derek B." }, "orcid": "0000-0002-3714-672X" }, { "id": "Howell-J-L", "name": { "family": "Howell", "given": "Jacob L." } }, { "id": "Cenko-S-B", "name": { "family": "Cenko", "given": "S. Bradley" }, "orcid": "0000-0003-1673-970X" }, { "id": "Keliser-I-K-W", "name": { "family": "Kleiser", "given": "Io K. W." } }, { "id": "Bloom-J-S", "name": { "family": "Bloom", "given": "Joshua S." }, "orcid": "0000-0002-7777-216X" }, { "id": "Miller-A-A", "name": { "family": "Miller", "given": "Adam" }, "orcid": "0000-0001-9515-478X" }, { "id": "Li-Weidong", "name": { "family": "Li", "given": "Weidong" } }, { "id": "Filippenko-A-V", "name": { "family": "Filippenko", "given": "Alexei V." }, "orcid": "0000-0003-3460-0103" }, { "id": "Starr-D", "name": { "family": "Starr", "given": "Dan" } }, { "id": "Poznanski-D", "name": { "family": "Poznanski", "given": "Dovi" } }, { "id": "Law-N-M", "name": { "family": "Law", "given": "Nicholas M." }, "orcid": "0000-0001-9380-6457" }, { "id": "Helou-G", "name": { "family": "Helou", "given": "George" }, "orcid": "0000-0003-3367-3415" }, { "id": "Frail-D-A", "name": { "family": "Frail", "given": "Dale A." } }, { "id": "Neill-J-D", "name": { "family": "Neill", "given": "James D." }, "orcid": "0000-0002-0466-1119" }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Tendulkar-S-P", "name": { "family": "Tendulkar", "given": "Shriharsh P." }, "orcid": "0000-0003-2548-2926" }, { "id": "Gehrels-N", "name": { "family": "Gehrels", "given": "Neil" } }, { "id": "Kennea-J-A", "name": { "family": "Kennea", "given": "Jamie" }, "orcid": "0000-0002-6745-4790" }, { "id": "Sullivan-Mark", "name": { "family": "Sullivan", "given": "Mark" }, "orcid": "0000-0001-9053-4820" }, { "id": "Bildsten-L", "name": { "family": "Bildsten", "given": "Lars" } }, { "id": "Dekany-R-G", "name": { "family": "Dekany", "given": "Richard" } }, { "id": "Rahmer-G", "name": { "family": "Rahmer", "given": "Gustavo" } }, { "id": "Hale-D-D-S", "name": { "family": "Hale", "given": "David" } }, { "id": "Smith-R-M", "name": { "family": "Smith", "given": "Roger M." } }, { "id": "Zolkower-J", "name": { "family": "Zolkower", "given": "Jeff" } }, { "id": "Velur-V", "name": { "family": "Velur", "given": "Viswa" } }, { "id": "Walters-R", "name": { "family": "Walters", "given": "Richard" }, "orcid": "0000-0002-1835-6078" }, { "id": "Henning-J-R", "name": { "family": "Henning", "given": "John" } }, { "id": "Bui-Khanh", "name": { "family": "Bui", "given": "Khanh" } }, { "id": "McKenna-D-L", "name": { "family": "McKenna", "given": "Dan" } }, { "id": "Blake-C-H", "name": { "family": "Blake", "given": "Cullen" } } ] }, "title": "PTF 10fqs: A Luminous Red Nova in the Spiral Galaxy Messier 99", "ispublished": "pub", "full_text_status": "public", "keywords": "stars: AGB and post-AGB; stars: mass-loss; supernovae: general; supernovae: individual (PTF 10fqs); surveys", "note": "\u00a9 2011 American Astronomical Society.\n\nReceived 2010 July 20; accepted 2011 February 4; published 2011 March 14.\n\nM.M.K. thanks the Gordon and Betty Moore Foundation for\na Hale Fellowship in support of graduate study. The Weizmann Institute PTF participation is supported in part by the Israel Science Foundation via grants to A.G.Y. The Weizmann-Caltech collaborative PTF effort is supported by the US\u2013Israel Binational Science Foundation. A.G.Y. and M.S. are jointly supported by the \"making connections\" Weizmann\u2013UK program. A.G.Y. further acknowledges support by a Marie Curie IRG fellowship and the Peter and Patricia Gruber Award, as well as funding by the Benoziyo Center for Astrophysics and the Yeda-Sela center at the Weizmann Institute. A.V.F.'s group and KAIT are supported by National Science Foundation (NSF) grant AST-0908886, the Sylvia & Jim Katzman Foundation, the Richard & Rhoda Goldman Fund, Gary and Cynthia Bengier, and the TABASGO Foundation; additional funding was provided by NASA through Spitzer grant 1322321, as well as HST grant AR-11248 from the Space Telescope Science Institute, which is operated by Associated Universities for Research in Astronomy, Inc., under NASA contract NAS 5-26555. J.S.B. and his group are partially funded by a DOE SciDAC grant. E.O.O. and D.P. are supported by the Einstein fellowship. L.B. is supported by the National Science Foundation under grants PHY 05-51164 and AST 07-07633. We are grateful to the staff of the Gemini Observatory for their promptness and high efficiency in attending to our TOO request. Likewise, we thank the staff of the Very Large Array and the Hobby\u2013Eberly Telescope. We acknowledge the following internet repositories: SEDS (Messier Objects) and GOLDMine (Virgo Cluster), Finally, as always, we are grateful to the librarians who maintain the ADS, the NED, and SIMBAD\ndata systems. The Hobby\u2013Eberly Telescope (HET) is a joint project of the University of Texas at Austin, the Pennsylvania State University, Stanford University, Ludwig-Maximillians-Universit\u00e4t M\u00fcnchen, and Georg-August-Universit\u00e4t G\u00f6ttingen. The HET is named in honor of its principal benefactors,William P. Hobby and Robert E. Eberly. The Marcario LRS is named for Mike Marcario of High Lonesome Optics, who fabricated several optics for the instrument but died before its completion; it is a joint project of the Hobby\u2013Eberly Telescope partnership and the\nInstituto de Astronom\u00eda de la Universidad Nacional Aut\u00f3noma de M\u00e9xico. GALEX (Galaxy Evolution Explorer) is a NASA Small Explorer, launched in 2003 April. We gratefully acknowledge NASA's support for construction, operation, and science analysis for the GALEX mission, developed in cooperation with the Centre National d'Etudes Spatiales of France and the Korean Ministry of Science and Technology. PAIRITEL is operated by the Smithsonian Astrophysical Observatory (SAO) and was made possible by a grant from the Harvard University Milton Fund, the camera loan from the University of Virginia, and the continued support of the SAO and UC Berkeley. The Expanded Very Large Array is operated by the National Radio Astronomy Observatory, a facility of the NSF operated under cooperative agreement by Associated Universities, Inc.\n\nPublished - Kasliwal2011p13405Astrophys_J.pdf
", "abstract": "The Palomar Transient Factory (PTF) is systematically charting the optical transient and variable sky. A primary\nscience driver of PTF is building a complete inventory of transients in the local universe (distance less than 200 Mpc). Here, we report the discovery of PTF 10fqs, a transient in the luminosity \"gap\" between novae and supernovae. Located on a spiral arm of Messier 99, PTF 10fqs has a peak luminosity of M_r = \u221212.3, red color (g \u2212 r = 1.0), and is slowly evolving (decayed by 1 mag in 68 days). It has a spectrum dominated by intermediate-width H\u03b1\n(\u2248930 km s^(\u22121)) and narrow calcium emission lines. The explosion signature (the light curve and spectra) is overall\nsimilar to that of M85 OT2006-1, SN 2008S, and NGC 300 OT. The origin of these events is shrouded in mystery\nand controversy (and in some cases, in dust). PTF 10fqs shows some evidence of a broad feature (around 8600 \u00c5)\nthat may suggest very large velocities (\u224810,000 km s^(\u22121)) in this explosion. Ongoing surveys can be expected to find\na few such events per year. Sensitive spectroscopy, infrared monitoring, and statistics (e.g., disk versus bulge) will eventually make it possible for astronomers to unravel the nature of these mysterious explosions.", "date": "2011-04-01", "date_type": "published", "publication": "Astrophysical Journal", "volume": "730", "number": "2", "publisher": "American Astronomical Society", "pagerange": "Art. No. 134", "id_number": "CaltechAUTHORS:20110412-115639625", "issn": "0004-637X", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20110412-115639625", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "Gordon and Betty Moore Foundation" }, { "agency": "Israel Science Foundation" }, { "agency": "Binational Science Foundation (USA-Israel)" }, { "agency": "Marie Curie Fellowship" }, { "agency": "Peter and Patricia Gruber Foundation" }, { "agency": "Benoziyo Center for Astrophysics" }, { "agency": "Weizmann Institute" }, { "agency": "NSF", "grant_number": "AST-0908886" }, { "agency": "Sylvia and Jim Katzman Foundation" }, { "agency": "Richard and Rhoda Goldman Fund" }, { "agency": "Gary and Cynthia Bengier" }, { "agency": "TABASGO Foundation" }, { "agency": "NASA", "grant_number": "1322321" }, { "agency": "NASA", "grant_number": "AR-11248" }, { "agency": "NASA", "grant_number": "AR-11248" }, { "agency": "NASA Einstein Fellowship" }, { "agency": "NSF", "grant_number": "PHY 05-51164" }, { "agency": "NSF", "grant_number": "AST 07-07633" }, { "agency": "Space Telescope Science Institute" } ] }, "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" }, { "id": "TAPIR" }, { "id": "Palomar-Transient-Factory" }, { "id": "Infrared-Processing-and-Analysis-Center-(IPAC)" }, { "id": "Space-Astrophysics-Laboratory" }, { "id": "Division-of-Geological-and-Planetary-Sciences" } ] }, "doi": "10.1088/0004-637X/730/2/134", "primary_object": { "basename": "Kasliwal2011p13405Astrophys_J.pdf", "url": "https://authors.library.caltech.edu/records/g5a2y-ews42/files/Kasliwal2011p13405Astrophys_J.pdf" }, "resource_type": "article", "pub_year": "2011", "author_list": "Kasliwal, Mansi M.; Kulkarni, Shri R.; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/q85w7-z0767", "eprint_id": 23329, "eprint_status": "archive", "datestamp": "2023-08-22 02:27:40", "lastmod": "2023-10-23 19:00:47", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Efremova-B-V", "name": { "family": "Efremova", "given": "Boryana V." } }, { "id": "Bianchi-L", "name": { "family": "Bianchi", "given": "Luciana" } }, { "id": "Thilker-D-A", "name": { "family": "Thilker", "given": "David A." }, "orcid": "0000-0002-8528-7340" }, { "id": "Neill-J-D", "name": { "family": "Neill", "given": "James D." }, "orcid": "0000-0002-0466-1119" }, { "id": "Burgarella-D", "name": { "family": "Burgarella", "given": "Denis" } }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted K." } }, { "id": "Madore-B-F", "name": { "family": "Madore", "given": "Barry F." }, "orcid": "0000-0002-1576-1676" }, { "id": "Rey-S-C", "name": { "family": "Rey", "given": "Soo-Chang" } }, { "id": "Barlow-T-A", "name": { "family": "Barlow", "given": "Tom A." } }, { "id": "Conrow-T", "name": { "family": "Conrow", "given": "Tim" } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Friedman-P-G", "name": { "family": "Friedman", "given": "Peter G." } }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Morrissey-P", "name": { "family": "Morrissey", "given": "Patrick" }, "orcid": "0000-0001-8177-1023" }, { "id": "Neff-S-G", "name": { "family": "Neff", "given": "Susan G." } }, { "id": "Schiminovich-D", "name": { "family": "Schiminovich", "given": "David" } }, { "id": "Seibert-M", "name": { "family": "Seibert", "given": "Mark" }, "orcid": "0000-0002-1143-5515" }, { "id": "Small-T", "name": { "family": "Small", "given": "Todd" } } ] }, "title": "The Recent Star Formation in NGC 6822: An Ultraviolet Study", "ispublished": "pub", "full_text_status": "public", "keywords": "galaxies: individual (NGC 6822); galaxies: stellar content; Local Group; stars: formation; ultraviolet: stars", "note": "\u00a9 2011 American Astronomical Society. Received 2009 April 19; accepted 2011 January 7; published 2011 March 9. We thank Philip Massey for very helpful clarifications on the\ncalibration of the H\u03b1 image, Alin Tolea for initial discussions about the source-contour definition, and the anonymous referee for valuable comments. The GALEX data presented in this paper were obtained from the Multimission Archive at the Space Telescope Science Institute (MAST). STScI is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS5-26555. Support for MAST for non-HST data is\nprovided by the NASA Office of Space Science via grantNAG5-\n7584 and by other grants and contracts. GALEX (The Galaxy\nEvolution Explorer) is a NASA Small Explorer, launched in\n2003 April. We gratefully acknowledge NASA's support for\nconstruction, operation, and science analysis of the GALEX\nmission, developed in cooperation with the Centre National\nd'Etudes Spatiales of France and the Korean Ministry of Science and Technology. The H\u03b1 image used in this paper was obtained by Massey et al. (2007a) as part of the Survey of Local Group Galaxies Currently Forming Stars and downloaded from http://www.archive.noao.edu/nsa/. S.-C.R. is supported by the NRF of Korea to the Center for Galaxy Evolution Research.\n\nPublished - Efremova2011p13395Astrophys_J.pdf
", "abstract": "We characterize the star formation in the low-metallicity galaxy NGC 6822 over the past few hundred million years, using GALEX far-UV (FUV,1344-1786 \u00c5) and near-UV (NUV, 1771-2831 \u00c5) imaging, and ground-based H alpha imaging. From the GALEX FUV image, we define 77 star-forming (SF) regions with area > 860 pc^2, and surface brightness \u227e 26.8 mag (AB) arcsec^(-2), within 0\u00b0.2 (1.7 kpc) of the center of the galaxy. We estimate the extinction by interstellar dust in each SF region from resolved photometry of the hot\nstars it contains: E(B - V) ranges from the minimum foreground value of 0.22 mag up to 0.66 \u00b1 0.21 mag. The integrated FUV and NUV photometry, compared with stellar population models, yields ages of the SF complexes up to a few hundred Myr, and masses from 2 x 10^2 M_\u2299 to 1.5 x 10^6 M_\u2299. The derived ages and masses strongly depend on the assumed type of interstellar selective extinction, which we find to vary across the galaxy. The total mass of the FUV-defined SF regions translates into an average star formation rate (SFR) of 1.4 x 10^(-2) M_\u2299 yr^(-1) over the past 100 Myr, and SFR = 1.0 x 10^(-2) M_\u2299 yr^(-1) in the most recent 10 Myr. The latter is in agreement with the value that we derive from the H\u03b1 luminosity, SFR = 0.008 M_\u2299 yr^(-1). The SFR in the most recent epoch becomes higher if we add the SFR = 0.02 M_\u2299 yr^(-1) inferred from far-IR measurements, which trace star formation still embedded in dust (age \u227e a few Myr).", "date": "2011-04-01", "date_type": "published", "publication": "Astrophysical Journal", "volume": "730", "number": "2", "publisher": "American Astronomical Society", "pagerange": "Art. No. 88", "id_number": "CaltechAUTHORS:20110414-085412903", "issn": "0004-637X", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20110414-085412903", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA", "grant_number": "NAS5-26555" }, { "agency": "NASA", "grant_number": "NAG5-7584" }, { "agency": "National Research Foundation of Korea" } ] }, "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" }, { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1088/0004-637X/730/2/88", "primary_object": { "basename": "Efremova2011p13395Astrophys_J.pdf", "url": "https://authors.library.caltech.edu/records/q85w7-z0767/files/Efremova2011p13395Astrophys_J.pdf" }, "resource_type": "article", "pub_year": "2011", "author_list": "Efremova, Boryana V.; Bianchi, Luciana; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/ek4b5-abg28", "eprint_id": 23043, "eprint_status": "archive", "datestamp": "2023-08-22 01:51:57", "lastmod": "2023-10-23 17:50:55", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Neill-J-D", "name": { "family": "Neill", "given": "James D." }, "orcid": "0000-0002-0466-1119" }, { "id": "Quimby-R-M", "name": { "family": "Quimby", "given": "Robert" }, "orcid": "0000-0001-9171-5236" }, { "id": "Ofek-E-O", "name": { "family": "Ofek", "given": "Eran" }, "orcid": "0000-0002-6786-8774" }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted K." } }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Barlow-T-A", "name": { "family": "Barlow", "given": "Tom A." } }, { "id": "Forster-K", "name": { "family": "Foster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Friedman-P-G", "name": { "family": "Friedman", "given": "Peter G." } }, { "id": "Morrissey-P", "name": { "family": "Morrissey", "given": "Patrick" }, "orcid": "0000-0001-8177-1023" } ] }, "title": "The Extreme Hosts of Extreme Supernovae", "ispublished": "pub", "full_text_status": "public", "keywords": "galaxies: dwarf; stars: luminosity function, mass function; stars: massive; supernovae: general", "note": "\u00a9 2011 American Astronomical Society.\n\nReceived 2010 September 7; accepted 2010 November 12; published 2010 December 23.\n\nWe gratefully acknowledge the anonymous referee for a careful reading and useful suggestions that improved the presentation of this work. Joint research by A.G. and M.S. is supported by the Weizmann-UK program. A.G. is also supported by grants from the Israeli Science Foundation, an EU FP7 Marie Curie IRG Fellowship, and a research grant from the Peter and Patricia Gruber Awards. GALEX (Galaxy Evolution Explorer) is a NASA Small Explorer, launched in 2003 April. We gratefully acknowledge NASA's support for construction, operation, and science analysis for the GALEX mission, developed in cooperation with the Centre National d'Etudes Spatiales of France and the Korean Ministry of Science and Technology. This research has made use of the NASA/IPAC Extragalactic Database (NED) which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration. Funding for the SDSS and SDSS-II has been provided by the Alfred P. Sloan Foundation, the Participating Institutions, the National Science Foundation, the U.S. Department of Energy, the National Aeronautics and Space Administration, the Japanese Monbukagakusho, the Max Planck Society, and the Higher Education Funding Council for England. The SDSS Web site is http://www.sdss.org/ The SDSS is managed by the Astrophysical Research Consortium for the Participating Institutions. The Participating Institutions are the American Museum of Natural History, Astrophysical Institute Potsdam, University of Basel, University of Cambridge, Case Western Reserve University, University of Chicago, Drexel University, Fermilab, the Institute for Advanced Study, the Japan Participation Group, Johns Hopkins University, the Joint Institute for Nuclear Astrophysics, the Kavli Institute for Particle Astrophysics and Cosmology,\nthe Korean Scientist Group, the Chinese Academy of Sciences\n(LAMOST), Los Alamos National Laboratory, the Max-Planck-\nInstitute for Astronomy (MPIA), the Max-Planck-Institute for\nAstrophysics (MPA), New Mexico State University, Ohio State\nUniversity, University of Pittsburgh, University of Portsmouth, Princeton University, the United States Naval Observatory, and the University of Washington. The National Energy Research Scientific Computing Center, which is supported by the Office of Science of the US Department\nof Energy under Contract No. DE-AC02-05CH11231, provided staff, computational resources and data storage for this\nproject.\n\nPublished - Neill2011p13135Astrophys_J.pdf
", "abstract": "We use GALEX ultraviolet (UV) and optical integrated photometry of the hosts of 17 luminous supernovae (LSNe, having peak M_V < \u201321) and compare them to a sample of 26, 000 galaxies from a cross-match between the SDSS DR4 spectral catalog and GALEX interim release 1.1. We place the LSN hosts on the galaxy NUV \u2013 r versus M_r color-magnitude diagram (CMD) with the larger sample to illustrate how extreme they are. The LSN hosts appear to favor low-density regions of the galaxy CMD falling on the blue edge of the blue cloud toward the low-luminosity end. From the UV-optical photometry, we estimate the star formation history of the LSN hosts. The hosts have moderately low star formation rates (SFRs) and low stellar masses (M_*) resulting in high specific star formation rates (sSFR). Compared with the larger sample, the LSN hosts occupy low-density regions of a diagram plotting sSFR versus M_* in the area having higher sSFR and lower M_*. This preference for low M_*, high sSFR hosts implies that the LSNe are produced by an effect having to do with their local environment. The correlation of mass with metallicity suggests that perhaps wind-driven mass loss is the factor that prevents LSNe from arising in higher-mass, higher-metallicity hosts. The massive progenitors of the LSNe (>100 M_\u2609), by appearing in low-SFR hosts, are potential tests for theories of the initial mass function that limit the maximum mass of a star based on the SFR.", "date": "2011-01-20", "date_type": "published", "publication": "Astrophysical Journal", "volume": "727", "number": "1", "publisher": "American Astronomical Society", "pagerange": "Art. No. 15", "id_number": "CaltechAUTHORS:20110322-095700336", "issn": "0004-637X", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20110322-095700336", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "Weizmann-UK" }, { "agency": "Israel Science Foundation" }, { "agency": "Marie Curie Fellowship" }, { "agency": "Peter and Patricia Gruber Foundation" } ] }, "local_group": { "items": [ { "id": "Palomar-Transient-Factory" }, { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1088/0004-637X/727/1/15", "primary_object": { "basename": "Neill2011p13135Astrophys_J.pdf", "url": "https://authors.library.caltech.edu/records/ek4b5-abg28/files/Neill2011p13135Astrophys_J.pdf" }, "resource_type": "article", "pub_year": "2011", "author_list": "Neill, James D.; Quimby, Robert; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/57nbg-egs72", "eprint_id": 22164, "eprint_status": "archive", "datestamp": "2023-08-22 01:42:08", "lastmod": "2023-10-23 15:47:35", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Mandelbaum-R", "name": { "family": "Mandelbaum", "given": "Rachel" }, "orcid": "0000-0003-2271-1527" }, { "id": "Blake-C", "name": { "family": "Blake", "given": "Chris" } }, { "id": "Bridle-S", "name": { "family": "Bridle", "given": "Sarah" } }, { "id": "Abdalla-F-B", "name": { "family": "Abdalla", "given": "Filipe B." } }, { "id": "Brough-S", "name": { "family": "Brough", "given": "Sarah" }, "orcid": "0000-0002-9796-1363" }, { "id": "Colless-M", "name": { "family": "Colless", "given": "Matthew" }, "orcid": "0000-0001-9552-8075" }, { "id": "Couch-W", "name": { "family": "Couch", "given": "Warrick" } }, { "id": "Croom-S", "name": { "family": "Croom", "given": "Scott" } }, { "id": "Davis-T", "name": { "family": "Davis", "given": "Tamara" } }, { "id": "Drinkwater-M-J", "name": { "family": "Drinkwater", "given": "Michael J." } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Glazebrook-K", "name": { "family": "Glazebrook", "given": "Karl" } }, { "id": "Jelliffe-B", "name": { "family": "Jelliffe", "given": "Ben" } }, { "id": "Jurek-R-J", "name": { "family": "Jurek", "given": "Russell J." } }, { "id": "Li-I-hui", "name": { "family": "Li", "given": "I-hui" } }, { "id": "Madore-B-F", "name": { "family": "Madore", "given": "Barry" }, "orcid": "0000-0002-1576-1676" }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "Chris" }, "orcid": "0000-0002-8650-1644" }, { "id": "Pimbblet-K", "name": { "family": "Pimbblet", "given": "Kevin" } }, { "id": "Poole-G-B", "name": { "family": "Poole", "given": "Gregory B." } }, { "id": "Pracy-M", "name": { "family": "Pracy", "given": "Michael" } }, { "id": "Sharp-R", "name": { "family": "Sharp", "given": "Rob" } }, { "id": "Wisnioski-E", "name": { "family": "Wisnioski", "given": "Emily" } }, { "id": "Woods-D", "name": { "family": "Woods", "given": "David" } }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted" } } ] }, "title": "The WiggleZ Dark Energy Survey: direct constraints on blue galaxy intrinsic alignments at intermediate redshifts", "ispublished": "pub", "full_text_status": "public", "keywords": "gravitational lensing: weak; galaxies: evolution; cosmology: observations; large-scale structure of Universe", "note": "\u00a9 2010 The Authors. Journal compilation \u00a9 2010 RAS.\nAccepted 2010 August 4. Received 2010 August 4; in original form 2009 November 27.\nArticle first published online: 5 Oct. 2010.\n\n\n\nRM was supported for the duration of this work by NASA through\nHubble Fellowship grant #HST-HF-01199.02-A awarded by the\nSpace Telescope Science Institute, which is operated by the Association\nof Universities for Research in Astronomy, Inc., for NASA,\nunder contract NAS 5-26555. SLB and FBA thank the Royal Society\nfor support in the form of a University Research Fellowship.\nWe thank Christopher Hirata and Benjamin Joachimi for useful discussion\nregarding the interpretation of these results, and the anonymous\nreferee for useful comments on the paper as a whole. We\nacknowledge financial support from the Australian Research Council\nthrough Discovery Project grants funding the positions of SB,\nMP, GP and TD.\nGALEX (the Galaxy Evolution Explorer) is a NASA Small Explorer,\nlaunched in April 2003.We gratefully acknowledge NASA's\nsupport for construction, operation and science analysis for the\nGALEX mission, developed in cooperation with the Centre National\nd'Etudes Spatiales of France and the Korean Ministry of\nScience and Technology.\nThe WiggleZ survey would not have been possible without the\ndedicated work of the staff of the Anglo-Australian Observatory in\nthe development and support of the AAOmega spectrograph, \nand\nthe running of the AAT.\nFunding for the SDSS and SDSS-II has been provided by the Alfred\nP. Sloan Foundation, the Participating Institutions, the National\nScience Foundation, the US Department of Energy, the National\nAeronautics and Space Administration, the Japanese Monbukagakusho,\nthe Max Planck Society and the Higher Education Funding\nCouncil for England. The SDSS Web Site is http://www.sdss.org/.\nThe SDSS is managed by the Astrophysical Research \nConsortium\nfor the Participating Institutions. The Participating Institutions\nare the American Museum of Natural History, Astrophysical\nInstitute Potsdam, University of Basel, University of Cambridge,\nCase Western Reserve University, University of Chicago, Drexel\nUniversity, Fermilab, the Institute for Advanced Study, the Japan\nParticipation Group, Johns Hopkins University, the Joint Institute\nfor Nuclear Astrophysics, the Kavli Institute for Particle Astrophysics\nand Cosmology, the Korean Scientist Group, the Chinese\nAcademy of Sciences (LAMOST), Los Alamos National Laboratory,\nthe Max-Planck-Institute for Astronomy (MPIA), the Max-\nPlanck-Institute for Astrophysics (MPA), New Mexico State University,\nOhio State University, University of Pittsburgh, University\nof Portsmouth, Princeton University, the United States Naval Observatory\nand the University of Washington.\n\nPublished - Mandelbaum2011p12594Mon_Not_R_Astron_Soc.pdf
", "abstract": "Correlations between the intrinsic shapes of galaxy pairs, and between the intrinsic shapes of galaxies and the large-scale density field, may be induced by tidal fields. These correlations, which have been detected at low redshifts (z < 0.35) for bright red galaxies in the Sloan Digital Sky Survey (SDSS), and for which upper limits exist for blue galaxies at z ~ 0.1, provide a window into galaxy formation and evolution, and are also an important contaminant for current and future weak lensing surveys. Measurements of these alignments at intermediate redshifts (z ~ 0.6) that are more relevant for cosmic shear observations are very important for understanding the origin and redshift evolution of these alignments, and for minimizing their impact on weak lensing measurements. We present the first such intermediate-redshift measurement for blue galaxies, using galaxy shape measurements from SDSS and spectroscopic redshifts from the WiggleZ Dark Energy Survey. Our null detection allows us to place upper limits on the contamination of weak lensing measurements by blue galaxy intrinsic alignments that, for the first time, do not require significant model-dependent extrapolation from the z ~ 0.1 SDSS observations. Also, combining the SDSS and WiggleZ constraints gives us a long redshift baseline with which to constrain intrinsic alignment models and contamination of the cosmic shear power spectrum. Assuming that the alignments can be explained by linear alignment with the smoothed local density field, we find that a measurement of \u03c38 in a blue-galaxy dominated, CFHTLS-like survey would be contaminated by at most^(+0.02)_(\u22120.03) (95 per cent confidence level, SDSS and WiggleZ) or \u00b1 0.03 (WiggleZ alone) due to intrinsic alignments. We also allow additional power-law redshift evolution of the intrinsic alignments, due to (for example) effects like interactions and mergers that are not included in the linear alignment model, and find that our constraints on cosmic shear contamination are not significantly weakened if the power-law index is less than ~2. The WiggleZ sample (unlike SDSS) has a long enough redshift baseline that the data can rule out the possibility of very strong additional evolution.", "date": "2011-01", "date_type": "published", "publication": "Monthly Notices of the Royal Astronomical Society", "volume": "410", "number": "2", "publisher": "Royal Astronomical Society", "pagerange": "844-859", "id_number": "CaltechAUTHORS:20110214-103856949", "issn": "0035-8711", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20110214-103856949", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA Hubble Fellowship", "grant_number": "HST-HF-01199.02-A" }, { "agency": "Space Telescope Science Institute" }, { "agency": "Royal Society" }, { "agency": "Australian Research Council" } ] }, "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" } ] }, "doi": "10.1111/j.1365-2966.2010.17485.x", "primary_object": { "basename": "Mandelbaum2011p12594Mon_Not_R_Astron_Soc.pdf", "url": "https://authors.library.caltech.edu/records/57nbg-egs72/files/Mandelbaum2011p12594Mon_Not_R_Astron_Soc.pdf" }, "resource_type": "article", "pub_year": "2011", "author_list": "Mandelbaum, Rachel; Blake, Chris; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/jvef9-dyw39", "eprint_id": 21416, "eprint_status": "archive", "datestamp": "2023-08-22 01:31:43", "lastmod": "2023-10-21 00:01:14", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Ofek-E-O", "name": { "family": "Ofek", "given": "E. O." }, "orcid": "0000-0002-6786-8774" }, { "id": "Neill-J-D", "name": { "family": "Neill", "given": "J. D." }, "orcid": "0000-0002-0466-1119" }, { "id": "Kulkarni-S-R", "name": { "family": "Kulkarni", "given": "S. R." }, "orcid": "0000-0001-5390-8563" }, { "id": "Forster-K", "name": { "family": "Forster", "given": "K." }, "orcid": "0000-0001-5800-5531" }, { "id": "Kasliwal-M-M", "name": { "family": "Kasliwal", "given": "M. M." }, "orcid": "0000-0002-5619-4938" }, { "id": "Law-N-M", "name": { "family": "Law", "given": "N." }, "orcid": "0000-0001-9380-6457" }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "C." }, "orcid": "0000-0002-8650-1644" }, { "id": "Quimby-R-M", "name": { "family": "Quimby", "given": "R. M." }, "orcid": "0000-0001-9171-5236" }, { "id": "Dekany-R-G", "name": { "family": "Dekany", "given": "R." } }, { "id": "Rahmer-G", "name": { "family": "Rahmer", "given": "G." } }, { "id": "Hale-D", "name": { "family": "Hale", "given": "D." } }, { "id": "Smith-R-M", "name": { "family": "Smith", "given": "R." } }, { "id": "Zolkower-J", "name": { "family": "Zolkower", "given": "J." } }, { "id": "Velur-V", "name": { "family": "Velur", "given": "V." } }, { "id": "Walters-R", "name": { "family": "Walters", "given": "R." }, "orcid": "0000-0002-1835-6078" }, { "id": "Henning-J", "name": { "family": "Henning", "given": "J." } }, { "id": "Bui-Khanh", "name": { "family": "Bui", "given": "K." } }, { "id": "McKenna-D", "name": { "family": "McKenna", "given": "D." } } ] }, "title": "Supernova PTF 09UJ: A Possible Shock Breakout from a Dense Circumstellar Wind", "ispublished": "pub", "full_text_status": "public", "keywords": "stars: mass-loss; supernovae: general; supernovae: individual (PTF 09uj)", "note": "\u00a9 2010 The American Astronomical Society.\n\nReceived 2010 July 9; accepted 2010 September 27; published 2010 November 12.\nWe thank an anonymous referee for useful comments. E.O.O.\nand D.P. are supported by an Einstein fellowship. S.B.C. and\nA.V.F. acknowledge generous financial assistance from Gary & Cynthia Bengier, the Richard & Rhoda Goldman Fund, NASA/\nSwift grants NNX09AL08G and NNX10AI21G, and NSF grant\nAST-0908886. A.G. acknowledges support by the Israeli and\nthe US-Israel Binational Science Foundations, an EU/IRG fellowship,\nthe Benoziyo Center for Astrophysics, and the Peter\nand Patricia Gruber Awards. The National Energy Research\nScientific Computing Center, which is supported by the Office\nof Science of the U. S. Department of Energy under Contract\nNo. DE-AC02-05CH11231, provided staff, computational resources,\nand data storage for this project. P.E.N. acknowledges\nsupport from the US Department of Energy Scientific Discovery\nthrough Advanced Computing program under contract DEFG02-\n06ER06-04. J.S.B.'s work on PTF was supported by NSF/\nOIA award AST-0941742 (\"Real-Time Classification of Massive\nTime-Series Data Streams\"). L.B. and K.S. are supported\nby the NSF under grants PHY 05-51164 and AST 07-07633.\n\nPublished - Ofek2010p12144Astrophys_J.pdf
", "abstract": "Type-IIn supernovae (SNe IIn), which are characterized by strong interaction of their ejecta with the surrounding circumstellar matter (CSM), provide a unique opportunity to study the mass-loss history of massive stars shortly before their explosive death. We present the discovery and follow-up observations of an SN IIn, PTF 09uj, detected by the Palomar Transient Factory (PTF). Serendipitous observations by Galaxy Evolution Explorer (GALEX) at ultraviolet (UV) wavelengths detected the rise of the SN light curve prior to the PTF discovery. The UV light curve of the SN rose fast, with a timescale of a few days, to a UV absolute AB magnitude of about \u201319.5. Modeling our observations, we suggest that the fast rise of the UV light curve is due to the breakout of the SN shock through the dense CSM (n \u2248 10^(10) cm^(\u20133)). Furthermore, we find that prior to the explosion the progenitor went through a phase of high mass-loss rate (~0.1 M_\u2299 yr^(\u20131)) that lasted for a few years. The decay rate of this SN was fast relative to that of other SNe IIn.", "date": "2010-12-01", "date_type": "published", "publication": "Astrophysical Journal", "volume": "724", "number": "2", "publisher": "American Astronomical Society", "pagerange": "1396-1401", "id_number": "CaltechAUTHORS:20101217-083631333", "issn": "0004-637X", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20101217-083631333", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "Gary and Cynthia Bengier" }, { "agency": "Richard and Rhoda Goldman Fund" }, { "agency": "NASA", "grant_number": "NNX09AL08G" }, { "agency": "NASA", "grant_number": "NNX10AI21G" }, { "agency": "NSF", "grant_number": "AST-0908886" }, { "agency": "NSF", "grant_number": "PHY 05-51164" }, { "agency": "NSF", "grant_number": "AST 07-07633" }, { "agency": "Binational Science Foundation (USA-Israel)" }, { "agency": "Benoziyo Center for Astrophysics" }, { "agency": "Peter and Patricia Gruber Foundation" }, { "agency": "Department of Energy (DOE)", "grant_number": "DE-AC02-05CH11231" }, { "agency": "Department of Energy (DOE)", "grant_number": "DE-FG02-06ER06-04" }, { "agency": "NSF", "grant_number": "AST-0941742" }, { "agency": "NASA Einstein Fellowship" } ] }, "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" }, { "id": "Palomar-Transient-Factory" }, { "id": "Space-Astrophysics-Laboratory" }, { "id": "Division-of-Geological-and-Planetary-Sciences" } ] }, "doi": "10.1088/0004-637X/724/2/1396", "primary_object": { "basename": "Ofek2010p12144Astrophys_J.pdf", "url": "https://authors.library.caltech.edu/records/jvef9-dyw39/files/Ofek2010p12144Astrophys_J.pdf" }, "resource_type": "article", "pub_year": "2010", "author_list": "Ofek, E. O.; Neill, J. D.; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/bvhe7-rzy83", "eprint_id": 20211, "eprint_status": "archive", "datestamp": "2023-08-22 00:48:00", "lastmod": "2023-10-20 22:19:57", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Gezari-S", "name": { "family": "Gezari", "given": "S." }, "orcid": "0000-0003-3703-5154" }, { "id": "Forster-K", "name": { "family": "Forster", "given": "K." }, "orcid": "0000-0001-5800-5531" }, { "id": "Neill-J-D", "name": { "family": "Neill", "given": "J. D." }, "orcid": "0000-0002-0466-1119" }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. C." }, "orcid": "0000-0002-8650-1644" } ] }, "title": "GALEX and Pan-STARRS1 Discovery of SN IIP 2010aq: The First Few Days After Shock Breakout in a Red Supergiant Star", "ispublished": "pub", "full_text_status": "public", "keywords": "supernovae: individual (SN 2010aq); surveys; ultraviolet: general", "note": "\u00a9 2010 The American Astronomical Society. Received 2010 June 11; accepted 2010 July 23; published 2010 August 12. S.G. thanks I. Rabinak and E. Nakar for kindly providing\ntheir models in the GALEX and PS1 filters, L. Dessart for helpful\ndiscussions, and the anonymous referee for useful comments.\nS.G. was supported by NASA through Hubble Fellowship grant\nHST-HF-01219.01-A awarded by the Space Telescope Science\nInstitute, which is operated by AURA, Inc., for NASA, under\ncontract NAS 5-26555. The PS1 Surveys have been made\npossible through the combinations of the Institute for Astronomy at the University of Hawaii, The Pan-STARRS Project\nOffice, the Max-Planck Society and its participating institutes,\nthe Max Planck Institute for Astronomy, Heidelberg, and the\nMax Planck Institute for Extraterrestrial Physics, Garching,\nThe Johns Hopkins University, the University of Durham, the\nUniversity of Edinburgh, the Queen's University of Belfast, the\nHarvard-Smithsonian Center forAstrophysics, the Las Cumbres\nObservatory Global Network, and the National Central University\nof Taiwan. We gratefully acknowledge NASA's support for\nconstruction, operation, and science analysis for the GALEX\nmission, developed in cooperation with CNES of France and\nthe Korean MOST.\n\nPublished - Gezari2010p11445Astrophys_J_Lett.pdf
", "abstract": "We present the early UV and optical light curve of Type IIP supernova (SN) 2010aq at z = 0.0862, and compare it to analytical models for thermal emission following SN shock breakout in a red supergiant star. SN 2010aq was discovered in joint monitoring between the Galaxy Evolution Explorer (GALEX) Time Domain Survey (TDS) in the NUV and the Pan-STARRS1 Medium Deep Survey (PS1 MDS) in the g, r, i, and z bands. The GALEX and Pan-STARRS1 observations detect the SN less than 1 day after the shock breakout, measure a diluted blackbody temperature of 31, 000 \u00b1 6000 K 1 day later, and follow the rise in the UV/optical light curve over the next 2 days caused by the expansion and cooling of the SN ejecta. The high signal-to-noise ratio of the simultaneous UV and optical photometry allows us to fit for a progenitor star radius of 700 \u00b1 200R_\u2609, the size of a red supergiant star. An excess in UV emission two weeks after shock breakout compared with SNe well fitted by model atmosphere-code synthetic spectra with solar metallicity is best explained by suppressed line blanketing due to a lower metallicity progenitor star in SN 2010aq. Continued monitoring of PS1 MDS fields by the GALEX TDS will increase the sample of early UV detections of Type II SNe by an order of magnitude and probe the diversity of SN progenitor star properties.", "date": "2010-09-01", "date_type": "published", "publication": "Astrophysical Journal Letters", "volume": "720", "number": "1", "publisher": "American Astronomical Society", "pagerange": "L77-L81", "id_number": "CaltechAUTHORS:20100929-072734347", "issn": "2041-8205", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20100929-072734347", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA Hubble Fellowship", "grant_number": "HST-HF-01219.01-A" }, { "agency": "NASA", "grant_number": "NAS 5-26555" } ] }, "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" }, { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1088/2041-8205/720/1/L77", "primary_object": { "basename": "Gezari2010p11445Astrophys_J_Lett.pdf", "url": "https://authors.library.caltech.edu/records/bvhe7-rzy83/files/Gezari2010p11445Astrophys_J_Lett.pdf" }, "resource_type": "article", "pub_year": "2010", "author_list": "Gezari, S.; Forster, K.; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/k0rbs-y5c40", "eprint_id": 19975, "eprint_status": "archive", "datestamp": "2023-08-22 00:47:21", "lastmod": "2023-10-20 22:05:33", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Loh-Yeong-Shang", "name": { "family": "Loh", "given": "Yeong-Shang" } }, { "id": "Rich-R-M", "name": { "family": "Rich", "given": "R. Michael" }, "orcid": "0000-0003-0427-8387" }, { "id": "Heinis-S", "name": { "family": "Heinis", "given": "S\u00e9bastien" } }, { "id": "Scranton-R", "name": { "family": "Scranton", "given": "Ryan" } }, { "id": "Mallery-R-P", "name": { "family": "Mallery", "given": "Ryan P." } }, { "id": "Salim-S", "name": { "family": "Salim", "given": "Samir" }, "orcid": "0000-0003-2342-7501" }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted" } }, { "id": "Arnouts-S", "name": { "family": "Arnouts", "given": "St\u00e9phane" } }, { "id": "Barlow-T-A", "name": { "family": "Barlow", "given": "Tom A." } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Friedman-P-G", "name": { "family": "Friedman", "given": "Peter G." } }, { "id": "Morrissey-P", "name": { "family": "Morrissey", "given": "Patrick" }, "orcid": "0000-0001-8177-1023" }, { "id": "Neff-S-G", "name": { "family": "Neff", "given": "Susan G." } }, { "id": "Schiminovich-D", "name": { "family": "Schiminovich", "given": "David" } }, { "id": "Seibert-M", "name": { "family": "Seibert", "given": "Mark" }, "orcid": "0000-0002-1143-5515" }, { "id": "Bianchi-L-C", "name": { "family": "Bianchi", "given": "Luciana" }, "orcid": "0000-0001-7746-5461" }, { "id": "Donas-J", "name": { "family": "Donas", "given": "Jos\u00e9" } }, { "id": "Heckman-T-M", "name": { "family": "Heckman", "given": "Timothy M." } }, { "id": "Lee-Young-Wook", "name": { "family": "Lee", "given": "Young-Wook" } }, { "id": "Madore-B-F", "name": { "family": "Madore", "given": "Barry F." }, "orcid": "0000-0002-1576-1676" }, { "id": "Milliard-B", "name": { "family": "Milliard", "given": "Bruno" } }, { "id": "Szalay-A-S", "name": { "family": "Szalay", "given": "Alex S." } }, { "id": "Welsh-B-Y", "name": { "family": "Welsh", "given": "Barry Y." } } ] }, "title": "The UV\u2013optical colour dependence of galaxy clustering in the local universe", "ispublished": "pub", "full_text_status": "public", "keywords": "methods: statistical; galaxies: clusters: general; galaxies: elliptical and lenticular; galaxies: evolution", "note": "\u00a9 2010 The Authors. Journal compilation \u00a9 2010 RAS.\n\nAccepted 2010 April 22. Received 2010 April 20; in original form 2009 April 8.\nArticle first published online: 17 June 2010.\n\nYSL would like to thank C. Hirata, S. Salim, C. Park, J. Kormendy\nand Z. Zheng for helpful discussions. This work has made extensive\nuse of IDLUTILS8 and Goddard IDL libraries. RMR acknowledges\nsupport from grant GO-11182 from the Space Telescope Science\nInstitute.\nGALEX is a NASA Small Explorer, launched in 2003 April. We\ngratefully acknowledge NASA's support for construction, operation\nand science analysis for the GALEX mission, developed in cooperation with the Centre National d'Etudes Spatiales of France\nand the Korean Ministry of Science and Technology.\nFacilities: GALEX, SDSS\n\nPublished - Loh2010p11322Mon_Not_R_Astron_Soc.pdf
", "abstract": "We measure the UV-optical colour dependence of galaxy clustering in the local Universe. Using the clean separation of the red and blue sequences made possible by the NUV\u2212r colour\u2013magnitude diagram, we segregate the galaxies into red, blue and intermediate 'green' classes. We explore the clustering as a function of this segregation by removing the dependence on luminosity and by excluding edge-on galaxies as a means of a non-model dependent veto of highly extincted galaxies. We find that \u03be(r_p, \u03c0) for both red and green galaxies shows strong redshift-space distortion on small scales \u2013 the 'finger-of-God' effect, with green galaxies having a lower amplitude than is seen for the red sequence, and the blue sequence showing almost no distortion. On large scales, \u03be(r_p, \u03c0) for all three samples show the effect of large-scale streaming from coherent infall. On scales of 1 h^(\u22121) Mpc < r_p < 10 h^(\u22121) Mpc, the projected auto-correlation function w_p(r_p) for red and green galaxies fits a power law with slope \u03b3 ~ 1.93 and amplitude r_0 ~ 7.5 and 5.3, compared with \u03b3 ~ 1.75 and r_0 ~ 3.9 h^(\u22121) Mpc for blue sequence galaxies. Compared to the clustering of a fiducial L* galaxy, the red, green and blue have a relative bias of 1.5, 1.1 and 0.9, respectively. The w_p(r_p) for blue galaxies display an increase in convexity at ~ 1 h^(\u22121) Mpc, with an excess of large-scale clustering. Our results suggest that the majority of blue galaxies are likely central galaxies in less massive haloes, while red and green galaxies have larger satellite fractions, and preferentially reside in virialized structures. If blue sequence galaxies migrate to the red sequence via processes like mergers or quenching that take them through the green valley, such a transformation may be accompanied by a change in environment in addition to any change in luminosity and colour.", "date": "2010-09-01", "date_type": "published", "publication": "Monthly Notices of the Royal Astronomical Society", "volume": "407", "number": "1", "publisher": "Royal Astronomical Society", "pagerange": "55-70", "id_number": "CaltechAUTHORS:20100915-141422615", "issn": "0035-8711", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20100915-141422615", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA", "grant_number": "GO-11182" }, { "agency": "Space Telescope Science Institute" } ] }, "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" }, { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1111/j.1365-2966.2010.16908.x", "primary_object": { "basename": "Loh2010p11322Mon_Not_R_Astron_Soc.pdf", "url": "https://authors.library.caltech.edu/records/k0rbs-y5c40/files/Loh2010p11322Mon_Not_R_Astron_Soc.pdf" }, "resource_type": "article", "pub_year": "2010", "author_list": "Loh, Yeong-Shang; Rich, R. Michael; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/zzna7-pmw83", "eprint_id": 19821, "eprint_status": "archive", "datestamp": "2023-08-22 00:31:34", "lastmod": "2023-10-20 21:56:08", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Blake-C", "name": { "family": "Blake", "given": "Chris" } }, { "id": "Brough-S", "name": { "family": "Brough", "given": "Sarah" }, "orcid": "0000-0002-9796-1363" }, { "id": "Colless-M", "name": { "family": "Colless", "given": "Matthew" }, "orcid": "0000-0001-9552-8075" }, { "id": "Couch-W", "name": { "family": "Couch", "given": "Warrick" } }, { "id": "Croom-S", "name": { "family": "Croom", "given": "Scott" } }, { "id": "Davis-T", "name": { "family": "Davis", "given": "Tamara" } }, { "id": "Drinkwater-M-J", "name": { "family": "Drinkwater", "given": "Michael J." } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Glazebrook-K", "name": { "family": "Glazebrook", "given": "Karl" } }, { "id": "Jelliffe-B", "name": { "family": "Jelliffe", "given": "Ben" } }, { "id": "Jurek-R-J", "name": { "family": "Jurek", "given": "Russell J." } }, { "id": "Li-I-hui", "name": { "family": "Li", "given": "I-hui" } }, { "id": "Madore-B-F", "name": { "family": "Madore", "given": "Barry" }, "orcid": "0000-0002-1576-1676" }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "Chris" }, "orcid": "0000-0002-8650-1644" }, { "id": "Pimbblet-K", "name": { "family": "Pimbblet", "given": "Kevin" } }, { "id": "Poole-G-B", "name": { "family": "Poole", "given": "Gregory B." } }, { "id": "Pracy-M", "name": { "family": "Pracy", "given": "Michael" } }, { "id": "Sharp-R", "name": { "family": "Sharp", "given": "Rob" } }, { "id": "Wisnioski-E", "name": { "family": "Wisnioski", "given": "Emily" } }, { "id": "Woods-D", "name": { "family": "Woods", "given": "David" } }, { "id": "Wyder-T", "name": { "family": "Wyder", "given": "Ted" } } ] }, "title": "The WiggleZ Dark Energy Survey: the selection function and z = 0.6 galaxy power spectrum", "ispublished": "pub", "full_text_status": "public", "keywords": "surveys; cosmological parameters; large-scale structure of Universe", "note": "\u00a9 2010 The Authors. Journal compilation \u00a9 2010 RAS. \nAccepted 2010 March 26. Received 2010 March 25; in original form 2009 May 11.\nArticle first published online: 10 May 2010.\nWe thank an anonymous referee for useful comments on the submitted\nversion of this paper.\nWe acknowledge financial support from the Australian Research\nCouncil through Discovery Project grants funding the positions of\nSB, MP, GBP and TD. SC acknowledges the support of the Australian\nResearch Council through a QEII Fellowship. MJD thanks\nthe Gregg Thompson Dark Energy Travel Fund for financial support.\nGALEX is a NASA Small Explorer, launched in 2003 April. We\ngratefully acknowledge NASA's support for construction, operation\nand science analysis for the GALEX mission, developed in cooperation\nwith the Centre National d'Etudes Spatiales of France\nand the Korean Ministry of Science and Technology.\nFinally, the WiggleZ survey would not be possible without the\ndedicated work of the staff of the Anglo-Australian Observatory in\nthe development and support of the AAOmega spectrograph, and\nthe running of the AAT.\n\nPublished - Blake2010p11169Mon_Not_R_Astron_Soc.pdf
", "abstract": "We report one of the most accurate measurements of the three-dimensional large-scale galaxy power spectrum achieved to date, using 56 159 redshifts of bright emission-line galaxies at effective redshift z \u2248 0.6 from the WiggleZ Dark Energy Survey at the Anglo-Australian Telescope. We describe in detail how we construct the survey selection function allowing for the varying target completeness and redshift completeness. We measure the total power with an accuracy of approximately 5 per cent in wavenumber bands of \u0394k= 0.01 h Mpc^(\u22121). A model power spectrum including non-linear corrections, combined with a linear galaxy bias factor and a simple model for redshift-space distortions, provides a good fit to our data for scales k < 0.4 h Mpc^(\u22121). The large-scale shape of the power spectrum is consistent with the best-fitting matter and baryon densities determined by observations of the cosmic microwave background radiation. By splitting the power spectrum measurement as a function of tangential and radial wavenumbers, we delineate the characteristic imprint of peculiar velocities. We use these to determine the growth rate of structure as a function of redshift in the range 0.4 < z < 0.8, including a data point at z= 0.78 with an accuracy of 20 per cent. Our growth rate measurements are a close match to the self-consistent prediction of the \u039b cold dark matter model. The WiggleZ survey data will allow a wide range of investigations into the cosmological model, cosmic expansion and growth history, topology of cosmic structure and Gaussianity of the initial conditions. Our calculation of the survey selection function will be released at a future date via our website wigglez.swin.edu.au.", "date": "2010-08-01", "date_type": "published", "publication": "Monthly Notices of the Royal Astronomical Society", "volume": "406", "number": "2", "publisher": "Royal Astronomical Society", "pagerange": "803-821", "id_number": "CaltechAUTHORS:20100908-091556191", "issn": "0035-8711", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20100908-091556191", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "Australian Research Council" }, { "agency": "Gregg Thompson Dark Energy Travel Fund" } ] }, "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" } ] }, "doi": "10.1111/j.1365-2966.2010.16747.x", "primary_object": { "basename": "Blake2010p11169Mon_Not_R_Astron_Soc.pdf", "url": "https://authors.library.caltech.edu/records/zzna7-pmw83/files/Blake2010p11169Mon_Not_R_Astron_Soc.pdf" }, "resource_type": "article", "pub_year": "2010", "author_list": "Blake, Chris; Brough, Sarah; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/9ywtt-d6d76", "eprint_id": 19121, "eprint_status": "archive", "datestamp": "2023-08-22 00:19:00", "lastmod": "2023-10-20 19:23:14", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Botticella-M-T", "name": { "family": "Botticella", "given": "M. T." } }, { "id": "Neill-J-D", "name": { "family": "Neill", "given": "J. D." }, "orcid": "0000-0002-0466-1119" }, { "id": "Forster-K", "name": { "family": "Forster", "given": "K." }, "orcid": "0000-0001-5800-5531" }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. C." }, "orcid": "0000-0002-8650-1644" } ] }, "title": "Supernova 2009kf: An Ultraviolet Bright Type IIP Supernova Discovered with Pan-STARRS 1 and GALEX", "ispublished": "pub", "full_text_status": "public", "keywords": "stars: evolution; supernovae: general; supernovae: individual (2009kf)", "note": "\u00a9 2010 The American Astronomical Society.\n\nReceived 2010 January 29; accepted 2010 May 12; published 2010 June 16.\nThe PS1 Surveys have been made possible through contributions\nof the Institute for Astronomy at the University of Hawaii\nin Manoa, the Pan-STARRS Project Office, the Max-Planck Society\nand its participating institutes, the Max Planck Institute\nfor Astronomy, Heidelberg and the Max Planck Institute for Extraterrestrial\nPhysics, Garching, Johns Hopkins University, the\nUniversity of Durham, the University of Edinburgh, the Queens\nUniversity Belfast, the Harvard-Smithsonian Center for Astrophysics,\nand the Los Cumbres Observatory Global Telescope\nNetwork, Incorporated. This work is also based on observations\ncollected at LT, WHT and NOT (La Palma), and Gemini\n(Hawaii). This work, conducted as part of the award \"Understanding\nthe lives of massive stars from birth to supernovae\"\n(S.J.S.) made under the European Heads of Research Councils\nand European Science Foundation EURYI Awards scheme, see\nwww.esf.org/euryi. M.T.B. thanks E. Cappellaro, L. Zampieri,\nand S. Benetti for helpful discussions. S.M. and E.K. acknowledge\nsupport from the Academy of Finland (project:8120503).\n\nPublished - Botticella2010p10816Astrophys_J_Lett.pdf
", "abstract": "We present photometric and spectroscopic observations of a luminous Type IIP Supernova (SN) 2009kf discovered by the Pan-STARRS 1 (PS1) survey and also detected by the Galaxy Evolution Explorer. The SN shows a plateau in its optical and bolometric light curves, lasting approximately 70 days in the rest frame, with an absolute magnitude of M_V = -18.4 mag. The P-Cygni profiles of hydrogen indicate expansion velocities of 9000 km s^(-1) at 61 days after discovery which is extremely high for a Type IIP SN. SN 2009kf is also remarkably bright in the near-ultraviolet (NUV) and shows a slow evolution 10-20 days after optical discovery. The NUV and optical luminosity at these epochs can be modeled with a blackbody with a hot effective temperature (T ~ 16,000 K) and a large radius (R ~ 1 \u00d7 10^(15) cm). The bright bolometric and NUV luminosity, the light curve peak and plateau duration, the high velocities, and temperatures suggest that 2009kf is a Type IIP SN powered by a larger than normal explosion energy. Recently discovered high-z SNe (0.7 < z < 2.3) have been assumed to be IIn SNe, with the bright UV luminosities due to the interaction of SN ejecta with a dense circumstellar medium. UV-bright SNe similar to SN 2009kf could also account for these high-z events, and its absolute magnitude M_(NUV) = -21.5 \u00b1 0.5 mag suggests such SNe could be discovered out to z ~ 2.5 in the PS1 survey.", "date": "2010-07-01", "date_type": "published", "publication": "Astrophysical Journal Letters", "volume": "717", "number": "1", "publisher": "American Astronomical Society", "pagerange": "L52-L56", "id_number": "CaltechAUTHORS:20100720-100110749", "issn": "2041-8205", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20100720-100110749", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "Academy of Finland", "grant_number": "8120503" } ] }, "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" }, { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1088/2041-8205/717/1/L52", "primary_object": { "basename": "Botticella2010p10816Astrophys_J_Lett.pdf", "url": "https://authors.library.caltech.edu/records/9ywtt-d6d76/files/Botticella2010p10816Astrophys_J_Lett.pdf" }, "resource_type": "article", "pub_year": "2010", "author_list": "Botticella, M. T.; Neill, J. D.; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/ynqf3-es967", "eprint_id": 18430, "eprint_status": "archive", "datestamp": "2023-08-21 23:54:38", "lastmod": "2023-10-20 16:22:24", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Thilker-D-A", "name": { "family": "Thilker", "given": "David A." }, "orcid": "0000-0002-8528-7340" }, { "id": "Bianchi-L-C", "name": { "family": "Bianchi", "given": "Luciana" }, "orcid": "0000-0001-7746-5461" }, { "id": "Schiminovich-D", "name": { "family": "Schiminovich", "given": "David" } }, { "id": "Gil-de-Paz-A", "name": { "family": "Gil de Paz", "given": "Armando" }, "orcid": "0000-0001-6150-2854" }, { "id": "Seibert-M", "name": { "family": "Seibert", "given": "Mark" }, "orcid": "0000-0002-1143-5515" }, { "id": "Madore-B-F", "name": { "family": "Madore", "given": "Barry F." }, "orcid": "0000-0002-1576-1676" }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted" } }, { "id": "Rich-R-M", "name": { "family": "Rich", "given": "R. Michael" }, "orcid": "0000-0003-0427-8387" }, { "id": "Yi-Sukyoung-K", "name": { "family": "Yi", "given": "Sukyoung K." } }, { "id": "Barlow-T-A", "name": { "family": "Barlow", "given": "Tom" } }, { "id": "Conrow-T", "name": { "family": "Conrow", "given": "Tim" } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Friedman-P-G", "name": { "family": "Friedman", "given": "Peter" } }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "Chris" }, "orcid": "0000-0002-8650-1644" }, { "id": "Morrissey-P", "name": { "family": "Morrissey", "given": "Patrick" }, "orcid": "0000-0001-8177-1023" }, { "id": "Neff-S-G", "name": { "family": "Neff", "given": "Susan" } }, { "id": "Small-T-A", "name": { "family": "Small", "given": "Todd" } } ] }, "title": "NGC 404: A Rejuvenated Lenticular Galaxy on a Merger-induced, Blueward Excursion Into the Green Valley", "ispublished": "pub", "full_text_status": "public", "keywords": "galaxies: elliptical and lenticular, cD; galaxies: evolution; galaxies: individual (NGC 404); galaxies: interactions; galaxies: structure", "note": "\u00a9 2010 American Astronomical Society.\n\nReceived 2009 October 6; accepted 2010 March 24; published 2010 April 9.\n\nGALEX is a NASA Small Explorer, launched in 2003 April.\nWe gratefully acknowledge NASA's support for construction,\noperation, and science analysis for the GALEX mission, developed\nin cooperation with the Centre National d'Etudes Spatiales\nof France and the Korean Ministry of Science and Technology.\nThis research has made use of the NASA/IPAC Extragalactic\nDatabase (NED). We acknowledge the usage of the HyperLeda\ndatabase (http://leda.univ-lyon1.fr). The Digitized Sky Surveys\nwere produced at the Space Telescope Science Institute under\nU.S. Government grant NAG W-2166. Some images presented\nin this Letter were obtained from the Multimission Archive at the Space Telescope Science Institute (MAST).\nFacilities: GALEX, HST (WFPC2), VLA, WSRT\n\nPublished - Thilker2010p9984Astrophys_J_Lett.pdf
", "abstract": "We have discovered recent star formation in the outermost portion ((1-4) \u00d7 R_(25)) of the nearby lenticular (S0) galaxy NGC 404 using Galaxy Evolution Explorer UV imaging. FUV-bright sources are strongly concentrated within the galaxy's H I ring (formed by a merger event according to del R\u00edo et al.), even though the average gas density is dynamically subcritical. Archival Hubble Space Telescope imaging reveals resolved upper main-sequence stars and conclusively demonstrates that the UV light originates from recent star formation activity. We present FUV, NUV radial surface brightness profiles, and integrated magnitudes for NGC 404. Within the ring, the average star formation rate (SFR) surface density (\u03a3_(SFR)) is ~2.2 \u00d7 10^(\u20135) M_\u2609 yr^(\u20131) kpc^(\u20132). Of the total FUV flux, 70% comes from the H I ring which is forming stars at a rate of 2.5 \u00d7 10^(\u20133) M_\u2609 yr^(\u20131). The gas consumption timescale, assuming a constant SFR and no gas recycling, is several times the age of the universe. In the context of the UV-optical galaxy color-magnitude diagram, the presence of the star-forming H I ring places NGC 404 in the green valley separating the red and blue sequences. The rejuvenated lenticular galaxy has experienced a merger-induced, disk-building excursion away from the red sequence toward bluer colors, where it may evolve quiescently or (if appropriately triggered) experience a burst capable of placing it on the blue/star-forming sequence for up to ~1 Gyr. The green valley galaxy population is heterogeneous, with most systems transitioning from blue to red but others evolving in the opposite sense due to acquisition of fresh gas through various channels.", "date": "2010-05-01", "date_type": "published", "publication": "Astrophysical Journal Letters", "volume": "714", "number": "1", "publisher": "American Astronomical Society", "pagerange": "L171-L175", "id_number": "CaltechAUTHORS:20100525-113912244", "issn": "2041-8205", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20100525-113912244", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" } ] }, "doi": "10.1088/2041-8205/714/1/L171", "primary_object": { "basename": "Thilker2010p9984Astrophys_J_Lett.pdf", "url": "https://authors.library.caltech.edu/records/ynqf3-es967/files/Thilker2010p9984Astrophys_J_Lett.pdf" }, "resource_type": "article", "pub_year": "2010", "author_list": "Thilker, David A.; Bianchi, Luciana; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/gtntv-sn183", "eprint_id": 17444, "eprint_status": "archive", "datestamp": "2023-08-21 23:16:11", "lastmod": "2023-10-19 23:53:55", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Drinkwater-M-J", "name": { "family": "Drinkwater", "given": "Michael J." } }, { "id": "Jurek-R-J", "name": { "family": "Jurek", "given": "Russell J." } }, { "id": "Blake-C", "name": { "family": "Blake", "given": "Chris" } }, { "id": "Woods-D", "name": { "family": "Woods", "given": "David" } }, { "id": "Pimbblet-K-A", "name": { "family": "Pimbblet", "given": "Kevin A." } }, { "id": "Glazebrook-K", "name": { "family": "Glazebrook", "given": "Karl" } }, { "id": "Sharp-R", "name": { "family": "Sharp", "given": "Rob" } }, { "id": "Pracy-M-B", "name": { "family": "Pracy", "given": "Michael B." } }, { "id": "Brough-S", "name": { "family": "Brough", "given": "Sarah" }, "orcid": "0000-0002-9796-1363" }, { "id": "Colless-M", "name": { "family": "Colless", "given": "Matthew" }, "orcid": "0000-0001-9552-8075" }, { "id": "Couch-W-J", "name": { "family": "Couch", "given": "Warrick J." } }, { "id": "Croom-S-M", "name": { "family": "Croom", "given": "Scott M." }, "orcid": "0000-0003-2880-9197" }, { "id": "Davis-T-M", "name": { "family": "Davis", "given": "Tamara M." } }, { "id": "Forbes-D", "name": { "family": "Forbes", "given": "Duncan" } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Gilbank-D-G", "name": { "family": "Gilbank", "given": "David G." } }, { "id": "Gladders-M", "name": { "family": "Gladders", "given": "Michael" } }, { "id": "Jelliffe-B", "name": { "family": "Jelliffe", "given": "Ben" } }, { "id": "Jones-N", "name": { "family": "Jones", "given": "Nick" } }, { "id": "Li-I-hui", "name": { "family": "Li", "given": "I-hui" } }, { "id": "Madore-B-F", "name": { "family": "Madore", "given": "Barry" }, "orcid": "0000-0002-1576-1676" }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Poole-G-B", "name": { "family": "Poole", "given": "Gregory B." } }, { "id": "Small-T", "name": { "family": "Small", "given": "Todd" } }, { "id": "Wisnioski-E", "name": { "family": "Wisnioski", "given": "Emily" } }, { "id": "Wyder-T", "name": { "family": "Wyder", "given": "Ted" } }, { "id": "Yee-H-K-C", "name": { "family": "Yee", "given": "H. K. C." } } ] }, "title": "The WiggleZ Dark Energy Survey: survey design and first data release", "ispublished": "pub", "full_text_status": "public", "keywords": "surveys; galaxies: high-redshift; galaxies: photometry; galaxies: starburst; cosmology: observations; ultraviolet: galaxies", "note": "\u00a9 2009 The Authors. Journal compilation \u00a9 2009 RAS.\n\nAccepted 2009 September 21; received 2009 September 19; in original form 2009 July 13.\n\nThis project would not be possible without the superb\nAAOmega/2dF facility provided by the Anglo-Australian Observatory\n(AAO).We wish to thank all the AAO staff for their support,\nespecially the night assistants, support astronomers and Russell\nCannon (who greatly assisted with the quality control of the 2dF\nsystem).\nWe also wish to thank Alejandro Dubrovsky for writing software\nused to check the guide star and blank sky positions, Maksym\nBernyk and David Barnes for help with the data base construction,\nPeter Jensen and Max Spolaor for assistance with the redshift\nmeasurements, Michael Stanley for help with the selection of new\nGALEX positions andMichael Cooper for providingDEEP2 spectra\nfor the comparison in Section 5.2.2.\nWe wish to acknowledge financial support from The Australian\nResearch Council (grants DP0772084 and LX0881951 directly\nfor the WiggleZ project, and grant LE0668442 for programming\nsupport), Swinburne University of Technology, The University of\nQueensland, the AAO and The Gregg Thompson Dark Energy\nTravel Fund.\nGALEX is a NASA Small Explorer, launched in 2003 April. We\ngratefully acknowledgeNASA's support for construction, operation\nand science analysis for the GALEX mission, developed in cooperation\nwith the Centre National d'Etudes Spatiales of France\nand the Korean Ministry of Science and Technology.\nFunding for the SDSS and SDSS-II has been provided by the Alfred\nP. Sloan Foundation, the Participating Institutions, the National\nScience Foundation, the U.S. Department of Energy, the National\nAeronautics and Space Administration, the Japanese Monbukagakusho,\ntheMax Planck Society and theHigher Education Funding\nCouncil for England. The SDSS website is http://www.sdss.org/.\nThe RCS2 survey is based on observations obtained with\nMegaPrime/MegaCam, a joint project of CFHT and CEA/DAPNIA,\nat the CFHT which is operated by the National Research Council\n(NRC) of Canada, the Institut National des Sciences de l'Univers\n(CNRS) of France and the University of Hawaii. The RCS2 survey\nis supported by grants to HKCY from the Canada Research Chair\nprogramme and the Discovery programme of the Natural Science\nand Engineering Research Council of Canada.\n\nPublished - Drinkwater2010p6976Mon_Not_R_Astron_Soc.pdf
", "abstract": "The WiggleZ Dark Energy Survey is a survey of 240 000 emission-line galaxies in the distant Universe, measured with the AAOmega spectrograph on the 3.9-m Anglo-Australian Telescope (AAT). The primary aim of the survey is to precisely measure the scale of baryon acoustic oscillations (BAO) imprinted on the spatial distribution of these galaxies at look-back times of 4\u20138 Gyr.\n\nThe target galaxies are selected using ultraviolet (UV) photometry from the Galaxy Evolution Explorer satellite, with a flux limit of NUV < 22.8 mag . We also require that the targets are detected at optical wavelengths, specifically in the range 20.0 < r < 22.5 mag . We use the Lyman break method applied to the UV colours, with additional optical colour limits, to select high-redshift galaxies. The galaxies generally have strong emission lines, permitting reliable redshift measurements in relatively short exposure times on the AAT. The median redshift of the galaxies is z_(med)= 0.6 . The redshift range containing 90 per cent of the galaxies is 0.2 < z < 1.0 .\n\nThe survey will sample a volume of ~1 Gpc^3 over a projected area on the sky of 1000 deg^2, with an average target density of 350 deg^(\u22122). Detailed forecasts indicate that the survey will measure the BAO scale to better than 2 per cent and the tangential and radial acoustic wave scales to approximately 3 and 5 per cent, respectively. Combining the WiggleZ constraints with existing cosmic microwave background measurements and the latest supernova data, the marginalized uncertainties in the cosmological model are expected to be \u03c3(\u03a9_m) = 0.02 and \u03c3(w) = 0.07 (for a constant w model). The WiggleZ measurement of w will constitute a robust, precise and independent test of dark energy models.\n\nThis paper provides a detailed description of the survey and its design, as well as the spectroscopic observations, data reduction and redshift measurement techniques employed. It also presents an analysis of the properties of the target galaxies, including emission-line diagnostics which show that they are mostly extreme starburst galaxies, and Hubble Space Telescope images, which show that they contain a high fraction of interacting or distorted systems. In conjunction with this paper, we make a public data release of data for the first 100 000 galaxies measured for the project.", "date": "2010-01-21", "date_type": "published", "publication": "Monthly Notices of the Royal Astronomical Society", "volume": "401", "number": "3", "publisher": "Royal Astronomical Society", "pagerange": "1429-1452", "id_number": "CaltechAUTHORS:20100210-104344933", "issn": "0035-8711", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20100210-104344933", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "Australian Research Council", "grant_number": "DP0772084" }, { "agency": "Australian Research Council", "grant_number": "LX0881951" }, { "agency": "Australian Research Council", "grant_number": "LE0668442" }, { "agency": "Swinburne University of Technology" }, { "agency": "The University of Queensland" }, { "agency": "AAO" }, { "agency": "Gregg Thompson Dark Energy Travel Fund" } ] }, "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" }, { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1111/j.1365-2966.2009.15754.x", "primary_object": { "basename": "Drinkwater2010p6976Mon_Not_R_Astron_Soc.pdf", "url": "https://authors.library.caltech.edu/records/gtntv-sn183/files/Drinkwater2010p6976Mon_Not_R_Astron_Soc.pdf" }, "resource_type": "article", "pub_year": "2010", "author_list": "Drinkwater, Michael J.; Jurek, Russell J.; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/4y57r-j9v31", "eprint_id": 76872, "eprint_status": "archive", "datestamp": "2023-08-19 00:53:57", "lastmod": "2023-10-25 16:56:42", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Neill-J-D", "name": { "family": "Neill", "given": "J. D." }, "orcid": "0000-0002-0466-1119" }, { "id": "Sullivan-Mark", "name": { "family": "Sullivan", "given": "M." }, "orcid": "0000-0001-9053-4820" }, { "id": "Howell-D-A", "name": { "family": "Howell", "given": "D. A." }, "orcid": "0000-0003-4253-656X" }, { "id": "Conley-A", "name": { "family": "Conley", "given": "Alex" } }, { "id": "Seibert-M", "name": { "family": "Seibert", "given": "Mark" }, "orcid": "0000-0002-1143-5515" }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Barlow-T-A", "name": { "family": "Barlow", "given": "Tom A." } }, { "id": "Forster-K", "name": { "family": "Foster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Friedman-P-G", "name": { "family": "Friedman", "given": "Peter G." } }, { "id": "Morrissey-P", "name": { "family": "Morrissey", "given": "Patrick" }, "orcid": "0000-0001-8177-1023" }, { "id": "Neff-S-G", "name": { "family": "Neff", "given": "Susan G." } }, { "id": "Schiminovich-D", "name": { "family": "Schiminovich", "given": "David" } }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted K." } }, { "id": "Bianchi-L-C", "name": { "family": "Bianchi", "given": "Luciana" }, "orcid": "0000-0001-7746-5461" }, { "id": "Donas-J", "name": { "family": "Donas", "given": "Jos\u00e9" } }, { "id": "Heckman-T-M", "name": { "family": "Heckman", "given": "Timothy M." } }, { "id": "Lee-Young-Wook", "name": { "family": "Lee", "given": "Young-Wook" } }, { "id": "Madore-B-F", "name": { "family": "Madore", "given": "Barry F." }, "orcid": "0000-0002-1576-1676" }, { "id": "Milliard-B", "name": { "family": "Milliard", "given": "Bruno" } }, { "id": "Rich-R-M", "name": { "family": "Rich", "given": "R. Michael" }, "orcid": "0000-0003-0427-8387" }, { "id": "Szalay-A-S", "name": { "family": "Szalay", "given": "Alex S." } } ] }, "title": "The Local Hosts of Type Ia Supernovae", "ispublished": "pub", "full_text_status": "public", "keywords": "galaxies: evolution \u2013 supernovae: general", "note": "\u00a9 2009 The American Astronomical Society. \n\nReceived 2009 July 13; accepted 2009 November 4; published 2009 December 4.\n\nJ.N. would like to thank Fillipo Mannucci, Dan Maoz, Massimo Della Valle, and Patrizia Braschi, the organizers of the 2008 May SN Ia rates conference in Florence, Italy where a preliminary version of this work was presented and discussed. We acknowledge the useful comments by the anonymous referee.\n\nGALEX (Galaxy Evolution Explorer) is a NASA Small Explorer, launched in 2003 April. We gratefully acknowledge NASA's support for construction, operation, and science analysis for the GALEX mission, developed in cooperation with the Centre National d'Etudes Spatiales of France and the Korean Ministry of Science and Technology.\n\nThis research has made use of the NASA/IPAC Extragalactic Database (NED), which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration.\n\nFunding for the SDSS and SDSS-II has been provided by the Alfred P. Sloan Foundation, the Participating Institutions, the National Science Foundation, the U.S. Department of Energy, the National Aeronautics and Space Administration, the Japanese Monbukagakusho, the Max Planck Society, and the Higher Education Funding Council for England. The SDSS Web Site is http://www.sdss.org/.\n\nThe SDSS is managed by the Astrophysical Research Consortium for the Participating Institutions. The Participating Institutions are the American Museum of Natural History, Astrophysical Institute Potsdam, University of Basel, University of Cambridge, Case Western Reserve University, University of Chicago, Drexel University, Fermilab, the Institute for Advanced Study, the Japan Participation Group, Johns Hopkins University, the Joint Institute for Nuclear Astrophysics, the Kavli Institute for Particle Astrophysics and Cosmology, the Korean Scientist Group, the Chinese Academy of Sciences (LAMOST), Los Alamos National Laboratory, the Max-Planck Institute for Astronomy (MPIA), the Max-Planck Institute for Astrophysics (MPA), New Mexico State University, Ohio State University, University of Pittsburgh, University of Portsmouth, Princeton University, the United States Naval Observatory, and the University of Washington.\n\nPublished - Neill_2009_ApJ_707_1449.pdf
Submitted - 0911.0690.pdf
", "abstract": "We use multi-wavelength, matched aperture, integrated photometry from the Galaxy Evolution Explorer (GALEX), the Sloan Digital Sky Survey, and the RC3 to estimate the physical properties of 166 nearby galaxies hosting 168 well-observed Type Ia supernovae (SNe Ia). The ultraviolet (UV) imaging of local SN Ia hosts from GALEX allows a direct comparison with higher-redshift hosts measured at optical wavelengths that correspond to the rest-frame UV. Our data corroborate well-known features that have been seen in other SN Ia samples. Specifically, hosts with active star formation produce brighter and slower SNe Ia on average, and hosts with luminosity-weighted ages older than 1 Gyr produce on average more faint, fast, and fewer bright, slow SNe Ia than younger hosts. New results include that in our sample, the faintest and fastest SNe Ia occur only in galaxies exceeding a stellar mass threshold of ~10^(10) M\u2609, leading us to conclude that their progenitors must arise in populations that are older and/or more metal rich than the general SN Ia population. A low host extinction subsample hints at a residual trend in peak luminosity with host age, after correcting for light-curve shape, giving the appearance that older hosts produce less-extincted SNe Ia on average. This has implications for cosmological fitting of SNe Ia, and suggests that host age could be useful as a parameter in the fitting. Converting host mass to metallicity and computing ^(56)Ni mass from the supernova light curves, we find that our local sample is consistent with a model that predicts a shallow trend between stellar metallicity and the ^(56)Ni mass that powers the explosion, but we cannot rule out the absence of a trend. We measure a correlation between ^(56)Ni mass and host age in the local universe that is shallower and not as significant as that seen at higher redshifts. The details of the age-^(56)Ni mass correlations at low and higher redshift imply a luminosity-weighted age threshold of ~3 Gyr for SN Ia hosts, above which they are less likely to produce SNe Ia with ^(56)Ni masses above ~0.5 M\u2609.", "date": "2009-12-20", "date_type": "published", "publication": "Astrophysical Journal", "volume": "707", "number": "2", "publisher": "American Astronomical Society", "pagerange": "1449-1465", "id_number": "CaltechAUTHORS:20170424-145706380", "issn": "0004-637X", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20170424-145706380", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA/JPL/Caltech" }, { "agency": "Alfred P. Sloan Foundation" }, { "agency": "Participating Institutions" }, { "agency": "NSF" }, { "agency": "Department of Energy (DOE)" }, { "agency": "NASA" }, { "agency": "Japanese Monbukagakusho" }, { "agency": "Max Planck Society" }, { "agency": "Higher Education Funding Council for England" } ] }, "collection": "CaltechAUTHORS", "local_group": { "items": [ { "id": "Space-Astrophysics-Laboratory", "value": "Space Astrophysics Laboratory" }, { "id": "Space-Radiation-Laboratory", "value": "Space Radiation Laboratory" } ] }, "doi": "10.1088/0004-637X/707/2/1449", "primary_object": { "basename": "0911.0690.pdf", "url": "https://authors.library.caltech.edu/records/4y57r-j9v31/files/0911.0690.pdf" }, "related_objects": [ { "basename": "Neill_2009_ApJ_707_1449.pdf", "url": "https://authors.library.caltech.edu/records/4y57r-j9v31/files/Neill_2009_ApJ_707_1449.pdf" } ], "resource_type": "article", "pub_year": "2009", "author_list": "Neill, J. D.; Sullivan, M.; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/41psc-yz579", "eprint_id": 16919, "eprint_status": "archive", "datestamp": "2023-08-21 22:45:42", "lastmod": "2023-10-19 22:39:33", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Sheen-Yun-Kyeong", "name": { "family": "Sheen", "given": "Yun-Kyeong" } }, { "id": "Jeong-Hyunjin", "name": { "family": "Jeong", "given": "Hyunjin" } }, { "id": "Yi-Sukyoung-K", "name": { "family": "Yi", "given": "Sukyoung K." } }, { "id": "Ferreras-I", "name": { "family": "Ferreras", "given": "Ignacio" } }, { "id": "Lotz-J-M", "name": { "family": "Lotz", "given": "Jennifer M." }, "orcid": "0000-0003-3130-5643" }, { "id": "Olsen-Knut-A-G", "name": { "family": "Olsen", "given": "Knut A. G." }, "orcid": "0000-0002-7134-8296" }, { "id": "Dickinson-Mark-E", "name": { "family": "Dickinson", "given": "Mark" }, "orcid": "0000-0001-5414-5131" }, { "id": "Barnes-S-A", "name": { "family": "Barnes", "given": "Sydney" } }, { "id": "Park-Jang-Hyun", "name": { "family": "Park", "given": "Jang-Hyun" } }, { "id": "Ree-Chang-H", "name": { "family": "Ree", "given": "Chang H." } }, { "id": "Madore-B-F", "name": { "family": "Madore", "given": "Barry F." }, "orcid": "0000-0002-1576-1676" }, { "id": "Barlow-T-A", "name": { "family": "Barlow", "given": "Tom A." } }, { "id": "Conrow-T", "name": { "family": "Conrow", "given": "Tim" } }, { "id": "Forster-K", "name": { "family": "Foster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Friendman-P-G", "name": { "family": "Friendman", "given": "Peter G." } }, { "id": "Lee-Young-Wook", "name": { "family": "Lee", "given": "Young-Wook" } }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Morrissey-P", "name": { "family": "Morrissey", "given": "Patrick" }, "orcid": "0000-0001-8177-1023" }, { "id": "Neff-S-G", "name": { "family": "Neff", "given": "Susan G." } }, { "id": "Schiminovich-D", "name": { "family": "Schiminovich", "given": "David" } }, { "id": "Seibert-M", "name": { "family": "Seibert", "given": "Mark" }, "orcid": "0000-0002-1143-5515" }, { "id": "Small-T-A", "name": { "family": "Small", "given": "Todd" } }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted K." } } ] }, "title": "Tidal Dwarf Galaxies Around a Post-merger Galaxy, NGC 4922", "ispublished": "pub", "full_text_status": "public", "keywords": "galaxies: dwarf; galaxies: individual (NGC 4922); galaxies: interactions; galaxies: starburst; ultraviolet: galaxies", "note": "\u00a9 2009 American Astronomical Society.\n\nPrint publication: Issue 6 (2009 December); received 2009 July 28; accepted for publication 2009 October 9; published 2009 November 5.\n\nWe are indebted to Giuseppe Gavazzi and Alessandro Boselli\nfor supporting our use of the GALEX data made public after\ntheir guest investigation acquired them but prior to their use.\nWe thank the anonymous referee for various clarifications. This\nresearch was supported by Basic Science Research Program\nthrough the National Research Foundation of Korea (NRF)\nfunded by the Ministry of Education, Science and Technology\n(Doyak 20090078756). S.K.Y. also acknowledges support from\nKorea Astronomy and Space Science Institute. We have used\nthe GALEX UV data obtained from the Multimission Archive\nat the Space Telescope Science Institute (MAST). GALEX is\noperated for NASA by the California Institute of Technology\nunder NASA contract NAS5-98034. We are grateful to the\nLowell Observatory for granting observing time and hospitality during our visit.\n\nPublished - Sheen2009p6482Astron_J.pdf
", "abstract": "One possible channel for the formation of dwarf galaxies involves birth in the tidal tails of interacting galaxies. We report the detection of a bright UV tidal tail and several young tidal dwarf galaxy (TDG) candidates in the post-merger galaxy NGC 4922 in the Coma cluster. Based on a two-component population model (combining young and old stellar populations), we find that the light of tidal tail predominantly comes from young stars (a few Myr old). The Galaxy Evolution Explorer ultraviolet data played a critical role in the parameter (age and mass) estimation. Our stellar mass estimates of the TDG candidates are ~10^(6\u20137) M_\u2609, typical for dwarf galaxies.", "date": "2009-12", "date_type": "published", "publication": "Astronomical Journal", "volume": "138", "number": "6", "publisher": "American Astronomical Society", "pagerange": "1911-1916", "id_number": "CaltechAUTHORS:20091209-093951716", "issn": "0004-6256", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20091209-093951716", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "Ministry of Education, Science and Technology (Korea)", "grant_number": "Doyak 20090078756" }, { "agency": "Korea Astronomy and Space Science Institute (KASI)" }, { "agency": "NASA", "grant_number": "NAS5-98034" } ] }, "local_group": { "items": [ { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1088/0004-6256/138/6/1911", "primary_object": { "basename": "Sheen2009p6482Astron_J.pdf", "url": "https://authors.library.caltech.edu/records/41psc-yz579/files/Sheen2009p6482Astron_J.pdf" }, "resource_type": "article", "pub_year": "2009", "author_list": "Sheen, Yun-Kyeong; Jeong, Hyunjin; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/r85nt-hx563", "eprint_id": 15881, "eprint_status": "archive", "datestamp": "2023-08-21 21:51:39", "lastmod": "2023-10-19 17:19:46", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Rey-Soo-Chang", "name": { "family": "Rey", "given": "Soo-Chang" } }, { "id": "Sohn-Sangmo-T", "name": { "family": "Sohn", "given": "Sangmo T." } }, { "id": "Beasley-M-A", "name": { "family": "Beasley", "given": "Michael A." } }, { "id": "Lee-Young-Wook", "name": { "family": "Lee", "given": "Young-Wook" } }, { "id": "Rich-R-M", "name": { "family": "Rich", "given": "R. Michael" }, "orcid": "0000-0003-0427-8387" }, { "id": "Yoon-Suk-Jin", "name": { "family": "Yoon", "given": "Suk-Jin" } }, { "id": "Yi-Sukyoung-K", "name": { "family": "Yi", "given": "Sukyoung K." } }, { "id": "Bianchi-L-C", "name": { "family": "Bianchi", "given": "Luciana" }, "orcid": "0000-0001-7746-5461" }, { "id": "Kang-Yongbeom", "name": { "family": "Kang", "given": "Yongbeom" } }, { "id": "Lee-Kyeongsook", "name": { "family": "Lee", "given": "Kyeongsook" } }, { "id": "Chung-Chul", "name": { "family": "Chung", "given": "Chul" } }, { "id": "Lee-Sang-Yoon", "name": { "family": "Lee", "given": "Sang-Yoon" } }, { "id": "Barlow-T-A", "name": { "family": "Barlow", "given": "Tom A." } }, { "id": "Forster-K", "name": { "family": "Foster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Friedman-P-G", "name": { "family": "Friedman", "given": "Peter G." } }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Morrissey-P", "name": { "family": "Morrissey", "given": "Patrick" }, "orcid": "0000-0001-8177-1023" }, { "id": "Neff-S-G", "name": { "family": "Neff", "given": "Susan G." } }, { "id": "Schiminovich-D", "name": { "family": "Schiminovich", "given": "David" } }, { "id": "Seibert-M", "name": { "family": "Seibert", "given": "Mark" }, "orcid": "0000-0002-1143-5515" }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted K." } }, { "id": "Donas-J", "name": { "family": "Donas", "given": "Jose" } }, { "id": "Heckman-T-M", "name": { "family": "Heckman", "given": "Timothy M." } }, { "id": "Madore-B-F", "name": { "family": "Madore", "given": "Barry F." }, "orcid": "0000-0002-1576-1676" }, { "id": "Milliard-B", "name": { "family": "Milliard", "given": "Bruno" } }, { "id": "Szalay-A-S", "name": { "family": "Szalay", "given": "Alex S." } }, { "id": "Welsh-B-Y", "name": { "family": "Welsh", "given": "Barry Y." } } ] }, "title": "Probing the intermediate-age globular clusters in NGS 5128 from ultraviolet observations", "ispublished": "pub", "full_text_status": "public", "keywords": "galaxies: individual (NGC 5128); galaxies: star clusters; globular clusters: general; ultraviolet: galaxies", "note": "\u00a9 2009 The American Astronomical Society. \n\nReceived 2009 May 12, accepted for publication 2009 June 12\nPublished 2009 June 29. \n\nWe thank Sugata Kaviraj for useful suggestions on the\nmanuscript. This work was supported by the Korea Research\nFoundation Grant funded by the Korean Government\n(MOEHRD; KRF-2005-202-C00158) and the Korea Science\nand Engineering Foundation (KOSEF) through the Astrophysical\nResearch Center for the Structure and Evolution of the\nCosmos (ARCSEC). GALEX (Galaxy Evolution Explorer) is a\nNASA Small Explorer, launched in 2003 April. We gratefully\nacknowledge NASA's support for construction, operation, and\nscience analysis for the GALEX mission, developed in cooperation\nwith the Centre National d'Etudes Spatiales of France and\nthe Korean Ministry of Science and Technology.\n\nPublished - Rey2009p5117Astrophys_J_Lett.pdf
", "abstract": "We explore the age distribution of the globular cluster (GC) system of the nearby elliptical galaxy NGC 5128\nusing ultraviolet (UV) photometry from GALEX observations, with UV\u2013optical colors used as the age indicator.\nMost GCs in NGC 5128 follow the general trends of GCs in M31 and the Milky Way in the UV\u2013optical color\u2013\ncolor diagram, which indicates that the majority of GCs in NGC 5128 are old similar to the age range of old\nGCs in M31 and the Milky Way. A large fraction of spectroscopically identified intermediate-age GC (IAGC)\ncandidates with ~3\u20138 Gyr are not detected in the far-UV (FUV) passband. Considering the nature of intermediate age\npopulations being faint in the FUV passband, we suggest that many of the spectroscopically identified IAGCs\nmay be truly intermediate in age. This is in contrast to the case of M31 where a large fraction of spectroscopically\nsuggested IAGCs are detected in FUV and therefore may not be genuine IAGCs but rather older GCs with\ndeveloped blue horizontal branch stars. Our UV photometry strengthens the results previously suggesting the\npresence of GC and stellar subpopulation with intermediate age in NGC 5128. The existence of IAGCs strongly\nindicates the occurrence of at least one more major star formation episode after a starburst at high redshift.", "date": "2009-07-20", "date_type": "published", "publication": "Astrophysical Journal", "volume": "700", "number": "1", "publisher": "American Astronomical Society", "pagerange": "L11-L15", "id_number": "CaltechAUTHORS:20090916-115854862", "issn": "0004-637X", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20090916-115854862", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "Korea Research Foundation", "grant_number": "KRF-2005-202-C00158" }, { "agency": "Korea Science and Engineering Foundation" }, { "agency": "Astrophysical Research Center for the Structure and Evolution of the Cosmos (ARCSEC)" }, { "agency": "NASA" }, { "agency": "Centre National d'\u00c9tudes Spatiales (CNES)" }, { "agency": "Ministry of Science and Technology (Korea)" } ] }, "local_group": { "items": [ { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1088/0004-637X/700/1/L11", "primary_object": { "basename": "Rey2009p5117Astrophys_J_Lett.pdf", "url": "https://authors.library.caltech.edu/records/r85nt-hx563/files/Rey2009p5117Astrophys_J_Lett.pdf" }, "resource_type": "article", "pub_year": "2009", "author_list": "Rey, Soo-Chang; Sohn, Sangmo T.; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/9prk2-bxw73", "eprint_id": 14844, "eprint_status": "archive", "datestamp": "2023-08-20 02:16:31", "lastmod": "2023-10-18 19:57:14", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Basu-Zych-A-R", "name": { "family": "Basu-Zych", "given": "Antara R." } }, { "id": "Schiminovich-D", "name": { "family": "Schiminovich", "given": "David" } }, { "id": "Heinis-S", "name": { "family": "Heinis", "given": "S\u00e9bastien" } }, { "id": "Overzier-R-A", "name": { "family": "Overzier", "given": "Roderik" } }, { "id": "Heckman-T-M", "name": { "family": "Heckman", "given": "Tim" } }, { "id": "Zamojski-M-A", "name": { "family": "Zamojski", "given": "Michel" } }, { "id": "Ilbert-Olivier", "name": { "family": "Ilbert", "given": "Olivier" }, "orcid": "0000-0002-7303-4397" }, { "id": "Koekemoer-A-M", "name": { "family": "Koekemoer", "given": "Anton M." }, "orcid": "0000-0002-6610-2048" }, { "id": "Barlow-T-A", "name": { "family": "Barlow", "given": "Tom A." } }, { "id": "Bianchi-L-C", "name": { "family": "Bianchi", "given": "Luciana" }, "orcid": "0000-0001-7746-5461" }, { "id": "Conrow-T", "name": { "family": "Conrow", "given": "Tim" } }, { "id": "Donas-J", "name": { "family": "Donas", "given": "Jos\u00e9" } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Friedman-P-G", "name": { "family": "Friedman", "given": "Peter G." } }, { "id": "Lee-Young-Wook", "name": { "family": "Lee", "given": "Young-Wook" } }, { "id": "Madore-B-F", "name": { "family": "Madore", "given": "Barry F." }, "orcid": "0000-0002-1576-1676" }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Milliard-B", "name": { "family": "Milliard", "given": "Bruno" } }, { "id": "Morrissey-P", "name": { "family": "Morrissey", "given": "Patrick" }, "orcid": "0000-0001-8177-1023" }, { "id": "Neff-S-G", "name": { "family": "Neff", "given": "Susan G." } }, { "id": "Rich-R-M", "name": { "family": "Rich", "given": "R. Michael" }, "orcid": "0000-0003-0427-8387" }, { "id": "Salim-S", "name": { "family": "Salim", "given": "Samir" }, "orcid": "0000-0003-2342-7501" }, { "id": "Seibert-M", "name": { "family": "Seibert", "given": "Mark" }, "orcid": "0000-0002-1143-5515" }, { "id": "Small-T-A", "name": { "family": "Small", "given": "Todd A." } }, { "id": "Szalay-A-S", "name": { "family": "Szalay", "given": "Alex S." } }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted K." } }, { "id": "Yi-Sukyoung-K", "name": { "family": "Yi", "given": "Sukyoung K." } } ] }, "title": "Studying Large- and Small-Scale Environments of Ultraviolet Luminous Galaxies", "ispublished": "pub", "full_text_status": "public", "keywords": "galaxies: evolution galaxies: halos galaxies: interactions galaxies: starburst methods: statistical", "note": "\u00a9 2009. The American Astronomical Society. Received 2008 September 13; accepted 2009 March 26; published 2009 June 23. We gratefully acknowledge\nNASA's support for construction, operation, and science analysis\nfor the GALEX mission, developed in cooperation with\nthe Centre National d'Etudes Spatiales of France and the Korean\nMinistry of Science and Technology. The HST COSMOS\nprogram was supported through NASA grant HST-GO-\n09822. More information on the COSMOS survey is available at\nhttp://www.astro.caltech.edu/cosmos. We thank Michael Blanton\nfor access to the IDL kcorrect (version 4.1.4) analysis package.\nThis work has greatly benefitted from the careful comments\nand suggestions made by the anonymous referee. A.R.B. gratefully\nrecognizes Ian McGreer and Andrei Mesinger for their\ncontributions to this analysis, and David Hogg for insightful discussions.\n\nPublished - BasuZych2009p4712Astrophys_J.pdf
", "abstract": "Studying the environments of 0.4 < z < 1.2 ultraviolet (UV)-selected galaxies, as examples of extreme star-forming galaxies (with star formation rates (SFRs) in the range of 3-30 M_\u2609 yr^(\u20131)), we explore the relationship between high rates of star formation, host halo mass, and pair fractions. We study the large- and small-scale environments of local ultraviolet luminous galaxies (UVLGs) by measuring angular correlation functions. We cross-correlate these systems with other galaxy samples: a volume-limited sample (ALL), a blue luminous galaxy sample, and a luminous red galaxy (LRG) sample. We determine the UVLG comoving correlation length to be r_0 = 4.8^(+11.6)_(\u20132.4) h^(\u20131) Mpc at z = 1.0, which is unable to constrain the halo mass for this sample. However, we find that UVLGs form close (separation <30 kpc) pairs with the ALL sample, but do not frequently form pairs with LRGs. A rare subset of UVLGs, those with the highest FUV surface brightnesses, are believed to be local analogs of high-redshift Lyman break galaxies (LBGs) and are called Lyman break analogs (LBAs). LBGs and LBAs share similar characteristics (i.e., color, size, surface brightness, specific SFRs, metallicities, and dust content). Recent Hubble Space Telescope images of z ~ 0.2 LBAs show disturbed morphologies, signs of mergers and interactions. UVLGs may be influenced by interactions with other galaxies and we discuss this result in terms of other high star-forming, merging systems.", "date": "2009-07-10", "date_type": "published", "publication": "Astrophysical Journal", "volume": "699", "number": "2", "publisher": "American Astronomical Society", "pagerange": "1307-1320", "id_number": "CaltechAUTHORS:20090806-102256755", "issn": "0004-637X", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20090806-102256755", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "Centre National d'\u00c9tudes Spatiales (CNES)" }, { "agency": "Ministry of Science and Technology (Korea)" }, { "agency": "NASA", "grant_number": "HST-GO-09822" } ] }, "local_group": { "items": [ { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1088/0004-637X/699/2/1307", "primary_object": { "basename": "BasuZych2009p4712Astrophys_J.pdf", "url": "https://authors.library.caltech.edu/records/9prk2-bxw73/files/BasuZych2009p4712Astrophys_J.pdf" }, "resource_type": "article", "pub_year": "2009", "author_list": "Basu-Zych, Antara R.; Schiminovich, David; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/74sya-8j842", "eprint_id": 15355, "eprint_status": "archive", "datestamp": "2023-08-21 21:39:36", "lastmod": "2023-10-18 21:42:32", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Gezari-S", "name": { "family": "Gezari", "given": "Suvi" }, "orcid": "0000-0003-3703-5154" }, { "id": "Heckman-T-M", "name": { "family": "Heckman", "given": "Tim" } }, { "id": "Cenko-S-B", "name": { "family": "Cenko", "given": "S. Bradley" }, "orcid": "0000-0003-1673-970X" }, { "id": "Eracleous-M", "name": { "family": "Eracleous", "given": "Michael" }, "orcid": "0000-0002-3719-940X" }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Gon\u00e7alves-T-S", "name": { "family": "Gon\u00e7alves", "given": "Thiago S." } }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. Chris" }, "orcid": "0000-0002-8650-1644" }, { "id": "Morrissey-P", "name": { "family": "Morrissey", "given": "Patrick" }, "orcid": "0000-0001-8177-1023" }, { "id": "Neff-S-G", "name": { "family": "Neff", "given": "Susan G." } }, { "id": "Seibert-M", "name": { "family": "Seibert", "given": "Mark" }, "orcid": "0000-0002-1143-5515" }, { "id": "Schiminovich-D", "name": { "family": "Schiminovich", "given": "David" } }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted K." } } ] }, "title": "Luminous Thermal Flares from Quiescent Supermassive Black Holes", "ispublished": "pub", "full_text_status": "public", "keywords": "black hole physics; galaxies: nuclei; ultraviolet: ISM; X-rays: galaxies", "note": "\u00a9 2009. The American Astronomical Society. Received 2008 December 15; accepted 2009 April 14; published 2009 May 29.\nWe thank the anonymous referee for their helpful comments.\nS.G. was supported by NASA through Hubble Fellowship grant\nHST-HF-01219.01-A awarded by the Space Telescope Science\nInstitute, which is operated by the Association of Universities\nfor Research in Astronomy, Inc., for NASA, under contract\nNAS 5-26555, and in part by Chandra grant G07- 8112X. We\ngratefully acknowledge NASA's support for construction, operation,\nand science analysis for the GALEX mission, developed\nin cooperation with Centre National d'Etudes Spatiales\nof France and the Korean Ministry of Science and Technology.\nSome of the data presented were obtained at the W. M.\nKeck Observatory, which is operated as a scientific partnership\namong the California Institute of Technology, the University of\nCalifornia, and NASA. The Observatory was make possible by\nthe generous financial support of the W. M. Keck Foundation.\nThe analysis pipeline used to reduce the DEIMOS data was\ndeveloped at UC Berkeley with support from NSF grant AST-\n0071048. The Hobby-Eberly Telescope (HET) is a joint project\nof the University of Texas at Austin, the Pennsylvania State University,\nStanford University, Ludwig-Maximillians-Universit\u00e4t\nM\u00fcnchen, and Georg-August-Universit\u00e4t G\u00f6ttingen. The HET\nis named in honor of its principal benefactors,William P. Hobby\nand Robert E. Eberly. The Marcario Low-Resolution Spectrograph\nis named for Mike Marcario of High Lonesome Optics,\nwho fabricated several optics for the instrument but died before\nits completion; it is a joint project of the Hobby\u2013Eberly\nTelescope partnership and the Instituto de Astronom\u00eda de la\nUniversidad Nacional Aut\u03ccnoma de M\u00e9xico.\n\nPublished - Gezari2009p4601Astrophys_J.pdf
", "abstract": "A dormant supermassive black hole lurking in the center of a galaxy will be revealed when a star passes close enough to be torn apart by tidal forces, and a flare of electromagnetic radiation is emitted when the bound fraction of the stellar debris falls back onto the black hole and is accreted. Although the tidal disruption of a star is a rare event in a galaxy,\u224810^(\u20134) yr^(\u20131), observational candidates have emerged in all-sky X-ray and deep ultraviolet (UV) surveys in the form of luminous UV/X-ray flares from otherwise quiescent galaxies. Here we present the third candidate tidal disruption event discovered in the Galaxy Evolution Explorer (GALEX) Deep Imaging Survey: a 1.6 \u00d7 10^(43) erg s^(\u20131) UV/optical flare from a star-forming galaxy at z = 0.1855. The UV/optical spectral energy distribution (SED) during the peak of the flare measured by GALEX and Palomar Large Field Camera imaging can be modeled as a single temperature blackbody with T_(bb) = 1.7 \u00d7 10^5 K and a bolometric luminosity of 3 \u00d7 10^(45) erg s^(\u20131), assuming an internal extinction with E(B \u2013 V)_(gas) = 0.3. The Chandra upper limit on the X-ray luminosity during the peak of the flare, L_X (2 \u2013 10 keV)<10^(41) erg s^(\u20131), is 2 orders of magnitude fainter than expected from the ratios of UV to X-ray flux density observed in active galaxies. We compare the light curves and broadband properties of all three tidal disruption candidates discovered by GALEX, and find that (1) the light curves are well fitted by the power-law decline expected for the fallback of debris from a tidally disrupted solar-type star and (2) the UV/optical SEDs can be attributed to thermal emission from an envelope of debris located at roughly 10 times the tidal disruption radius of a \u224810^7 M_\u2609 central black hole. We use the observed peak absolute optical magnitudes of the flares (\u201317.5>M_g > \u2013 18.9) to predict the detection capabilities of upcoming optical synoptic surveys.", "date": "2009-06-20", "date_type": "published", "publication": "Astrophysical Journal", "volume": "698", "number": "2", "publisher": "American Astronomical Society", "pagerange": "1367-1379", "id_number": "CaltechAUTHORS:20090827-112314953", "issn": "0004-637X", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20090827-112314953", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA", "grant_number": "HST-HF-01219.01-A" }, { "agency": "NASA", "grant_number": "NAS 5-26555" }, { "agency": "Chandra", "grant_number": "G07- 8112X" }, { "agency": "W. M. Keck Foundation" }, { "agency": "NSF", "grant_number": "AST-0071048" } ] }, "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" }, { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1088/0004-637X/698/2/1367", "primary_object": { "basename": "Gezari2009p4601Astrophys_J.pdf", "url": "https://authors.library.caltech.edu/records/74sya-8j842/files/Gezari2009p4601Astrophys_J.pdf" }, "resource_type": "article", "pub_year": "2009", "author_list": "Gezari, Suvi; Heckman, Tim; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/5shns-74157", "eprint_id": 15415, "eprint_status": "archive", "datestamp": "2023-08-20 02:06:12", "lastmod": "2023-10-18 21:45:54", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Heinis-S", "name": { "family": "Heinis", "given": "S\u00e9bastien" } }, { "id": "Budav\u00e1ri-T", "name": { "family": "Budav\u00e1ri", "given": "Tam\u00e1s" } }, { "id": "Szalay-A-S", "name": { "family": "Szalay", "given": "Alex S." } }, { "id": "Arnouts-S", "name": { "family": "Arnouts", "given": "St\u00e9phane" } }, { "id": "Arag\u03ccn-Calvo-M-A", "name": { "family": "Arag\u03ccn-Calvo", "given": "Miguel A." } }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted K." } }, { "id": "Barlow-T-A", "name": { "family": "Barlow", "given": "Tom A." } }, { "id": "Forster-K", "name": { "family": "Foster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Peter-F-G", "name": { "family": "Peter", "given": "Friedman G." } }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Morrissey-P", "name": { "family": "Morrissey", "given": "Patrick" }, "orcid": "0000-0001-8177-1023" }, { "id": "Neff-S-G", "name": { "family": "Neff", "given": "Susan G." } }, { "id": "Schiminovich-D", "name": { "family": "Schiminovich", "given": "David" } }, { "id": "Seibert-M", "name": { "family": "Seibert", "given": "Mark" }, "orcid": "0000-0002-1143-5515" }, { "id": "Bianchi-L-C", "name": { "family": "Bianchi", "given": "Luciana" }, "orcid": "0000-0001-7746-5461" }, { "id": "Donas-J", "name": { "family": "Donas", "given": "Jos\u00e9" } }, { "id": "Heckman-T-M", "name": { "family": "Heckman", "given": "Timothy M." } }, { "id": "Lee-Young-Wook", "name": { "family": "Lee", "given": "Young-Wook" } }, { "id": "Madore-B-F", "name": { "family": "Madore", "given": "Barry F." }, "orcid": "0000-0002-1576-1676" }, { "id": "Milliard-B", "name": { "family": "Milliard", "given": "Bruno" } }, { "id": "Rich-R-M", "name": { "family": "Rich", "given": "R. Michael" }, "orcid": "0000-0003-0427-8387" }, { "id": "Yi-Sukyoung-K", "name": { "family": "Yi", "given": "Sukyoung K." } } ] }, "title": "Spatial Clustering from GALEX-SDSS Samples: Star Formation History and Large-Scale Clustering", "ispublished": "pub", "full_text_status": "public", "keywords": "ultraviolet: galaxies", "note": "\u00a9 2009. The American Astronomical Society. \n\nReceived 2008 December 8; accepted 2009 April 21; published 2009 June 4. \n\nWe thank Ching-Wa Yip for useful discussions. GALEX (Galaxy Evolution Explorer) is a NASA Small Explorer, launched in 2003 April. We gratefully acknowledge NASAs support for construction, operation, and science analysis for the GALEX mission, developed in cooperation with the Centre National d(tm)Etudes Spatiales of France and the Korean Ministry of Science and Technology.\n\nPublished - Heinis2009p4610Astrophys_J.pdf
", "abstract": "We measure the projected spatial correlation function w_p (r_p ) from a large sample combining Galaxy Evolution Explorer ultraviolet imaging with the Sloan Digital Sky Survey spectroscopic sample. We study the dependence of the clustering strength for samples selected on (NUV \u2013 r)_(abs) color, specific star formation rate (SSFR), and stellar mass. We find that there is a smooth transition in the clustering of galaxies as a function of this color from weak clustering among blue galaxies to stronger clustering for red galaxies. The clustering of galaxies within the \"green valley\" has an intermediate strength, and is consistent with that expected from galaxy groups. The results are robust to the correction for dust extinction. The comparison with simple analytical modeling suggests that the halo occupation number increases with older star formation epochs. When splitting according to SSFR, we find that the SSFR is a more sensitive tracer of environment than stellar mass.", "date": "2009-06-20", "date_type": "published", "publication": "Astrophysical Journal", "volume": "698", "number": "2", "publisher": "American Astronomical Society", "pagerange": "1838-1851", "id_number": "CaltechAUTHORS:20090828-130619755", "issn": "0004-637X", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20090828-130619755", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA" } ] }, "local_group": { "items": [ { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1088/0004-637X/698/2/1838", "primary_object": { "basename": "Heinis2009p4610Astrophys_J.pdf", "url": "https://authors.library.caltech.edu/records/5shns-74157/files/Heinis2009p4610Astrophys_J.pdf" }, "resource_type": "article", "pub_year": "2009", "author_list": "Heinis, S\u00e9bastien; Budav\u00e1ri, Tam\u00e1s; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/axpa8-8kq87", "eprint_id": 15619, "eprint_status": "archive", "datestamp": "2023-08-21 21:26:34", "lastmod": "2023-10-19 14:39:08", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted K." } }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Barlow-T-A", "name": { "family": "Barlow", "given": "Tom A." } }, { "id": "Forster-K", "name": { "family": "Foster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Friedman-P-G", "name": { "family": "Friedman", "given": "Peter G." } }, { "id": "Morrissey-P", "name": { "family": "Morrissey", "given": "Patrick" }, "orcid": "0000-0001-8177-1023" }, { "id": "Neff-S-G", "name": { "family": "Neff", "given": "Susan G." } }, { "id": "Neill-J-D", "name": { "family": "Neill", "given": "James D." }, "orcid": "0000-0002-0466-1119" }, { "id": "Schiminovich-D", "name": { "family": "Schiminovich", "given": "David" } }, { "id": "Seibert-M", "name": { "family": "Seibert", "given": "Mark" }, "orcid": "0000-0002-1143-5515" }, { "id": "Bianchi-L-C", "name": { "family": "Bianchi", "given": "Luciana" }, "orcid": "0000-0001-7746-5461" }, { "id": "Donas-J", "name": { "family": "Donas", "given": "Jos\u00e9" } }, { "id": "Heckman-T-M", "name": { "family": "Heckman", "given": "Timothy M." } }, { "id": "Lee-Young-Wook", "name": { "family": "Lee", "given": "Young-Wook" } }, { "id": "Madore-B-F", "name": { "family": "Madore", "given": "Barry F." }, "orcid": "0000-0002-1576-1676" }, { "id": "Milliard-B", "name": { "family": "Milliard", "given": "Bruno" } }, { "id": "Rich-R-M", "name": { "family": "Rich", "given": "R. Michael" }, "orcid": "0000-0003-0427-8387" }, { "id": "Szalay-A-S", "name": { "family": "Szalay", "given": "Alex S." } }, { "id": "Yi-Sukyoung-K", "name": { "family": "Yi", "given": "Sukyoung K." } } ] }, "title": "The Star Formation Law at Low Surface Density", "ispublished": "pub", "full_text_status": "public", "keywords": "galaxies: evolution; galaxies: irregular; galaxies: ISM; galaxies: spiral; ultraviolet: galaxies", "note": "\u00a9 2009 The American Astronomical Society. \n\nReceived 2008 October 2; accepted 2009 February 24; published 2009 April 27. \n\nWe thank Joannah Hinz, Samuel Boissier, Robert Kennicutt, and Mark Krumholz for helpful discussions. GALEX is a NASA Small Explorer, launched in 2003 April. We gratefully acknowledge NASA's support for construction, operation, and science analysis for the GALEX mission, developed in cooperation with the Centre National d'Etudes Spatiales of France and the Korean Ministry of Science and Technology.\n\nPublished - Wyder2009p2578Astrophys_J.pdf
", "abstract": "We investigate the nature of the star formation law at low gas surface densities using a sample of 19 low surface brightness (LSB) galaxies with existing H I maps in the literature, UV imaging from the Galaxy Evolution Explorer satellite, and optical images from the Sloan Digital Sky Survey. All of the LSB galaxies have (NUV \u2013 r) colors similar to those for higher surface brightness star-forming galaxies of similar luminosity indicating that their average star formation histories are not very different. Based upon four LSB galaxies with both UV and far-infrared (FIR) data, we find FIR/UV ratios significantly less than 1, implying low amounts of internal UV extinction in LSB galaxies. We use the UV images and H I maps to measure the star formation rate (SFR) and hydrogen gas surface density within the same region for all the galaxies. The LSB galaxy star formation rate surface densities lie below the extrapolation of the power law fit to the SFR surface density as a function of the total gas density for higher surface brightness galaxies. Although there is more scatter, the LSB galaxies also lie below a second version of the star formation law in which the SFR surface density is correlated with the gas density divided by the orbital time in the disk. The downturn seen in both star formation laws is consistent with theoretical models that predict lower star formation efficiencies in LSB galaxies due to the declining molecular fraction with decreasing density.", "date": "2009-05-10", "date_type": "published", "publication": "Astrophysical Journal", "volume": "696", "number": "2", "publisher": "American Astronomical Society", "pagerange": "1834-1853", "id_number": "CaltechAUTHORS:20090904-124126138", "issn": "0004-637X", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20090904-124126138", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA" } ] }, "local_group": { "items": [ { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1088/0004-637X/696/2/1834", "primary_object": { "basename": "Wyder2009p2578Astrophys_J.pdf", "url": "https://authors.library.caltech.edu/records/axpa8-8kq87/files/Wyder2009p2578Astrophys_J.pdf" }, "resource_type": "article", "pub_year": "2009", "author_list": "Wyder, Ted K.; Martin, D. Christopher; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/cj5cf-1h258", "eprint_id": 14134, "eprint_status": "archive", "datestamp": "2023-08-21 21:10:32", "lastmod": "2023-10-18 16:09:10", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Budav\u00e1ri-T", "name": { "family": "Budav\u00e1ri", "given": "Tam\u00e1s" } }, { "id": "Heinis-S", "name": { "family": "Heinis", "given": "S\u00e9bastien" } }, { "id": "Szalay-A-S", "name": { "family": "Szalay", "given": "Alexander S." } }, { "id": "Nieto-Santisteban-M", "name": { "family": "Nieto-Santisteban", "given": "Mar\u00eda" } }, { "id": "Gupchup-J", "name": { "family": "Gupchup", "given": "Jayant" } }, { "id": "Shiao-B", "name": { "family": "Shiao", "given": "Bernie" } }, { "id": "Smith-M", "name": { "family": "Smith", "given": "Myron" }, "orcid": "0000-0002-3321-1432" }, { "id": "Chang-R", "name": { "family": "Chang", "given": "Ruixiang" } }, { "id": "Kauffmann-G", "name": { "family": "Kauffmann", "given": "Guinevere" } }, { "id": "Morrissey-P", "name": { "family": "Morrissey", "given": "Patrick" }, "orcid": "0000-0001-8177-1023" }, { "id": "Schiminovich-D", "name": { "family": "Schiminovich", "given": "David" } }, { "id": "Milliard-B", "name": { "family": "Milliard", "given": "Bruno" } }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted K." } }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Barlow-T-A", "name": { "family": "Barlow", "given": "Tom A." } }, { "id": "Seibert-M", "name": { "family": "Seibert", "given": "Mark" }, "orcid": "0000-0002-1143-5515" }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Bianchi-L", "name": { "family": "Bianchi", "given": "Luciana" } } ] }, "title": "GALEX\u2013SDSS catalogs for statistical studies", "ispublished": "pub", "full_text_status": "public", "keywords": "catalogs; methods: statistical; surveys; ultraviolet: general", "note": "\u00a9 2009. The American Astronomical Society.\nReceived 2008 August 14; accepted 2009 January 5; published 2009 March 24.\nGALEX is a NASA Small Explorer. We acknowledge NASA's\nsupport for construction, operation, and science analysis for the GALEX mission, developed in cooperation with the Centre National d'Etudes Spatiales of France and the Korean Ministry of Science and Technology. This research has made use of data obtained from and software provided by the US National Virtual Observatory, which is sponsored by the National Science Foundation. T.B. gratefully acknowledges support from the Gordon and Betty Moore Foundation via GBMF 554.\n\nPublished - Budavari2009p1375Astrophys_J.pdf
", "abstract": "We present a detailed study of the Galaxy Evolution Explorer's (GALEX) photometric catalogs with special focus\non the statistical properties of the All-sky and Medium Imaging Surveys. We introduce the concept of primaries to\nresolve the issue of multiple detections and follow a geometric approach to define clean catalogs with well understood selection functions. We cross-identify the GALEX sources (GR2+3) with Sloan Digital Sky Survey (SDSS; DR6)\nobservations, which indirectly provides an invaluable insight into the astrometric model of the UV sources and\nallows us to revise the band merging strategy. We derive the formal description of the GALEX footprints as well as\ntheir intersections with the SDSS coverage along with analytic calculations of their areal coverage. The crossmatch catalogs are made available for the public. We conclude by illustrating the implementation of typical selection criteria in SQL for catalog subsets geared toward statistical analyses, e.g., correlation and luminosity function studies.", "date": "2009-04-01", "date_type": "published", "publication": "Astrophysical Journal", "volume": "694", "number": "2", "publisher": "American Astronomical Society", "pagerange": "1281-1292", "id_number": "CaltechAUTHORS:20090501-142926332", "issn": "0004-637X", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20090501-142926332", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA" }, { "agency": "NSF" }, { "agency": "Gordon and Betty Moore Foundation", "grant_number": "GBMF 554" } ] }, "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" }, { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1088/0004-637X/694/2/1281", "primary_object": { "basename": "Budavari2009p1375Astrophys_J.pdf", "url": "https://authors.library.caltech.edu/records/cj5cf-1h258/files/Budavari2009p1375Astrophys_J.pdf" }, "resource_type": "article", "pub_year": "2009", "author_list": "Budav\u00e1ri, Tam\u00e1s; Heinis, S\u00e9bastien; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/1tttg-dnp32", "eprint_id": 16337, "eprint_status": "archive", "datestamp": "2023-08-22 12:46:00", "lastmod": "2023-10-19 22:07:22", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Gezari-S", "name": { "family": "Gezari", "given": "Suvi" }, "orcid": "0000-0003-3703-5154" }, { "id": "Dessart-L", "name": { "family": "Dessart", "given": "Luc" } }, { "id": "Basa-S", "name": { "family": "Basa", "given": "St\u00e9phane" } }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Neill-J-D", "name": { "family": "Neill", "given": "James D." }, "orcid": "0000-0002-0466-1119" }, { "id": "Woosley-S-E", "name": { "family": "Woosley", "given": "S. E." } }, { "id": "Hillier-D-J", "name": { "family": "Hillier", "given": "D. John" } }, { "id": "Bazin-G", "name": { "family": "Bazin", "given": "Gurvan" } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Friedman-P-G", "name": { "family": "Friedman", "given": "Peter G." } }, { "id": "Le-Du-J", "name": { "family": "Le Du", "given": "J\u00e9r\u00e9my" } }, { "id": "Mazure-A", "name": { "family": "Mazure", "given": "Alain" } }, { "id": "Morrissey-P", "name": { "family": "Morrissey", "given": "Patrick" }, "orcid": "0000-0001-8177-1023" }, { "id": "Neff-S-G", "name": { "family": "Neff", "given": "Susan G." } }, { "id": "Schiminovich-D", "name": { "family": "Schiminovich", "given": "David" } }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted K." } } ] }, "title": "Probing Shock Breakout with Serendipitous GALEX Detections of Two SNLS Type II-P Supernovae", "ispublished": "pub", "full_text_status": "public", "keywords": "radiative transfer; stars: atmospheres; supernovae: general; ultraviolet: ISM", "note": "\u00a9 2008 The American Astronomical Society.\nPrint publication: Issue 2 (2008 August 20)\nReceived 2008 April 7, accepted for publication 2008 July 8\nPublished 2008 July 31.\nWe thank the anonymous referee for their helpful comments.\nL. D. acknowledges support for this work from the SciDAC\nprogram of the DOE, under grants DE-FC02-01ER41184 and\nDE-FC02-06ER41452, and from the NSF under grant AST-\n0504947. S. W. acknowledges support from the SciDAC under\ngrant DE-FC02-06ER41438 and also by NASA under grant\nNNG05GG28G. S. G. and S. B. thank Bruno Milliard for his\nsupport during this study. We gratefully acknowledge NASA's\nsupport for construction, operation, and science analysis for the\nGALEX mission, developed in cooperation with CNES of France\nand the Korean MOST. Based on observations obtained with\nMegaPrime/MegaCam, a joint project of CFHT and CEA/DAPNIA,\nat the CFHT, which is operated by the NRC of Canada,\nthe INSU of the CNRS of France, and the University of Hawaii.\nThis work is based in part on data products produced at TERAPIX\nand the CADC as part of the CFHT Legacy Survey, a\ncollaborative project of NRC and CNRS. Based on observations\nmade with the ESO telescopes at the La Silla or Paranal Observatories\nunder proposal IDs 171.A-0486 and 176.A-0589.\n\nPublished - GEZapjl08.pdf
", "abstract": "We report the serendipitous detection by GALEX of fast (<1 day) rising (\u22731 mag) UV emission from two Type\nII plateau (II-P) supernovae (SNe) at z = 0.185 and 0.324 discovered by the Supernova Legacy Survey. Optical\nphotometry and VLT spectroscopy 2 weeks after the GALEX detections link the onset of UV emission to the time\nof shock breakout. Using radiation hydrodynamics and non-LTE radiative transfer simulations, and starting from a\nstandard red supergiant (RSG; Type II-P SN progenitor) star evolved self-consistently from the main sequence to\niron core collapse, we model the shock breakout phase and the 55 hr that follow. The small scale height of our\nRSG atmosphere model suggests that the breakout signature is a thermal soft X-ray burst (\u03bbpeak ~ 90 \u00c5) with a peak\nduration of \u227e2000 s. Longer durations are possible but require either an extended and tenuous nonstandard envelope\nor an unusually dense RSG wind with M ~ 10^(-3)M_\u2609yr^(-1). The GALEX observations miss the peak of the luminous (M_(FUV)\u2248 \u2212 20), UV burst but unambiguously capture the rise of the emission and a subsequent 2 day long plateau. \nThe postbreakout, UV-bright plateau is a prediction of our model in which the shift of the peak of the spectral\nenergy distribution (SED) from \u223c100 to \u223c1000 \u00c5 and the ejecta expansion both counteract the decrease in bolometric luminosity from \u223c10^(11) to ~ 10^9 L_\u2609 over that period. Based on the observed detection efficiency of our study, we \nmake predictions for the breakout detection rate of the GALEX Time Domain Survey.", "date": "2008-08-20", "date_type": "published", "publication": "Astrophysical Journal Letters", "volume": "683", "number": "1", "publisher": "American Astronomical Society", "pagerange": "L131-L134", "id_number": "CaltechAUTHORS:20091013-202239042", "issn": "2041-8205", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20091013-202239042", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "Department of Energy (DOE)", "grant_number": "DE-FC02-01ER41184" }, { "agency": "Department of Energy (DOE)", "grant_number": "DE-FC02-06ER41452" }, { "agency": "NSF", "grant_number": "AST-0504947" }, { "agency": "Department of Energy (DOE)", "grant_number": "DE-FC02-06ER41438" }, { "agency": "NASA", "grant_number": "NNG05GG28G" }, { "agency": "Centre National d'\u00c9tudes Spatiales (CNES)" }, { "agency": "Ministry of Science and Technology (Korea)" }, { "agency": "European Southern Observatory - La Silla or Paranal Observatories", "grant_number": "171.A-0486" }, { "agency": "European Southern Observatory - La Silla or Paranal Observatories", "grant_number": "176.A-0589" } ] }, "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" }, { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1086/591647", "primary_object": { "basename": "GEZapjl08.pdf", "url": "https://authors.library.caltech.edu/records/1tttg-dnp32/files/GEZapjl08.pdf" }, "resource_type": "article", "pub_year": "2008", "author_list": "Gezari, Suvi; Dessart, Luc; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/w9880-ger04", "eprint_id": 12393, "eprint_status": "archive", "datestamp": "2023-09-14 16:44:37", "lastmod": "2023-10-23 20:42:21", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Deharveng-J-M", "name": { "family": "Deharveng", "given": "Jean-Michel" } }, { "id": "Small-T", "name": { "family": "Small", "given": "Todd" } }, { "id": "Barlow-T-A", "name": { "family": "Barlow", "given": "Tom A." } }, { "id": "P\u00e9roux-C", "name": { "family": "P\u00e9roux", "given": "C\u00e9line" }, "orcid": "0000-0002-4288-599X" }, { "id": "Milliard-B", "name": { "family": "Milliard", "given": "Bruno" } }, { "id": "Friedman-P-G", "name": { "family": "Friedman", "given": "Peter G." } }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Morrissey-P", "name": { "family": "Morrissey", "given": "Patrick" }, "orcid": "0000-0001-8177-1023" }, { "id": "Schiminovich-D", "name": { "family": "Schiminovich", "given": "David" } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Seibert-M", "name": { "family": "Seibert", "given": "Mark" }, "orcid": "0000-0002-1143-5515" }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted K." } }, { "id": "Bianchi-L", "name": { "family": "Bianchi", "given": "Luciana" } }, { "id": "Donas-J", "name": { "family": "Donas", "given": "Jose" } }, { "id": "Heckman-T-M", "name": { "family": "Heckman", "given": "Timothy M." } }, { "id": "Lee-Young-Wook", "name": { "family": "Lee", "given": "Young-Wook" } }, { "id": "Madore-B-F", "name": { "family": "Madore", "given": "Barry F." }, "orcid": "0000-0002-1576-1676" }, { "id": "Neff-S-G", "name": { "family": "Neff", "given": "Susan G." } }, { "id": "Rich-R-M", "name": { "family": "Rich", "given": "R. Michael" }, "orcid": "0000-0003-0427-8387" }, { "id": "Szalay-A-S", "name": { "family": "Szalay", "given": "Alex S." } }, { "id": "Welsh-B-Y", "name": { "family": "Welsh", "given": "Barry Y." } }, { "id": "Yi-Sukyoung-K", "name": { "family": "Yi", "given": "Sukyoung K." } } ] }, "title": "Ly alpha-emitting galaxies at 0.2 < z < 0.35 from GALEX spectroscopy", "ispublished": "pub", "full_text_status": "public", "keywords": "galaxies: evolution; galaxies: ISM; galaxies: luminosity function, mass function; galaxies: starburst; ultraviolet: galaxies", "note": "\u00a9 2008 The American Astronomical Society. \n\nReceived 2007 November 5; accepted 2008 March 1. \n\nGALEX (Galaxy Evolution Explorer) is a NASA Small Explorer, launched in 2003 April. We gratefully acknowledge NASA's support for construction, operation, and science analysis for the GALEX mission, developed in cooperation with the Centre National d'Etudes Spatiales of France and the Korean Ministry of Science and Technology. This research has made use of the NASA/IPAC Extragalactic Database (NED), which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with NASA.\n\nPublished - DEHapj08.pdf
", "abstract": "We have used the GALEX (Galaxy Evolution Explorer) spectroscopic survey mode, with a resolution of similar to 8 angstrom in the far-ultraviolet (FUV; 1350-1750 angstrom) and similar to 20 angstrom in the near-ultraviolet (NUV; 1950-2750 angstrom) for a systematic search of Ly alpha-emitting galaxies at low redshift. Our aim is to fill a gap between high-redshift surveys and a small set of objects studied in detail in the nearby universe. A blind search of 7018 spectra extracted in five deep exposures (5.65 deg(2)) has resulted in 96 Ly alpha-emitting galaxy candidates in the FUV domain after accounting for broad-line AGNs. The Ly alpha equivalent widths (EWs) are consistent with stellar population model predictions and show no trends as a function of UV color or UV luminosity, with the exception of a possible decrease in the most luminous objects that may be due to small-number statistics. The objects' distribution in EW is similar to that at z similar to 3, but their fraction among star-forming galaxies is smaller. Avoiding uncertain candidates, a subsample of 66 objects in the range 0.2 < z < 0.35 has been used to build a Ly alpha luminosity function (LF). The incompleteness due to objects with significant Ly alpha emission but a UV continuum too low for spectral extraction has been evaluated. A comparison with H alpha LFs in the same redshift domain is consistent with an average Ly alpha/H alpha of similar to 1 in about 15% of the star-forming galaxies. A comparison with high-redshift Ly alpha LFs implies an increase of the Ly alpha luminosity density by a factor of about 16 from z similar to 0.3 to z similar to 3. By comparison with the factor of 5 increase in the UV luminosity density in the same redshift range, this suggests an increase of the average Ly alpha escape fraction with redshift.", "date": "2008-06-20", "date_type": "published", "publication": "Astrophysical Journal", "volume": "680", "number": "2", "publisher": "American Astronomical Society", "pagerange": "1072-1082", "id_number": "CaltechAUTHORS:DEHapj08", "issn": "0004-637X", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:DEHapj08", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA" }, { "agency": "Centre National d'Etudes Spatiales (France)" }, { "agency": "Korean Ministry of Science and Technology" } ] }, "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" }, { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1086/587953", "primary_object": { "basename": "DEHapj08.pdf", "url": "https://authors.library.caltech.edu/records/w9880-ger04/files/DEHapj08.pdf" }, "resource_type": "article", "pub_year": "2008", "author_list": "Deharveng, Jean-Michel; Small, Todd; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/8bm2z-6h076", "eprint_id": 14180, "eprint_status": "archive", "datestamp": "2023-08-22 11:30:11", "lastmod": "2023-10-18 16:19:01", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Gezari-S", "name": { "family": "Gezari", "given": "S." }, "orcid": "0000-0003-3703-5154" }, { "id": "Basa-S", "name": { "family": "Basa", "given": "S." } }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. C." }, "orcid": "0000-0002-8650-1644" }, { "id": "Bazin-G", "name": { "family": "Bazin", "given": "G." } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "K." }, "orcid": "0000-0001-5800-5531" }, { "id": "Milliard-B", "name": { "family": "Milliard", "given": "B." } }, { "id": "Halpern-J-P", "name": { "family": "Halpern", "given": "J. P." } }, { "id": "Friedman-P-G", "name": { "family": "Friedman", "given": "P. G." } }, { "id": "Morrissey-P", "name": { "family": "Morrissey", "given": "P." }, "orcid": "0000-0001-8177-1023" }, { "id": "Neff-S-G", "name": { "family": "Neff", "given": "S. G." } }, { "id": "Schiminovich-D", "name": { "family": "Schiminovich", "given": "D." } }, { "id": "Seibert-M", "name": { "family": "Seibert", "given": "M." }, "orcid": "0000-0002-1143-5515" }, { "id": "Small-T", "name": { "family": "Small", "given": "T." } }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "T. K." } } ] }, "title": "UV/optical detections of candidate tidal disruption events by GALEX and CFHTLS", "ispublished": "pub", "full_text_status": "public", "keywords": "galaxies: g nuclei; ultraviolet: galaxies; X-rays: galaxies", "note": "\u00a9 2008 The American Astronomical Society.\nReceived 2007 August 14; accepted 2007 December 25.\nWe thank our anonymous referee for their insightful comments\nthat helped us improve our paper. We are grateful for the\npublic database of SN candidates produced by the Supernova\nLegacy Survey, which has been very useful for this study. S. G.\nwas supported in part by the Volontariat International-CNES of\nFrance and through Chandra grant G06-7099X issued by the\nChandra X-Ray Observatory, which is operated by the Smithsonian\nAstrophysical Observatory for and on behalf of NASA.\nWe gratefully acknowledge NASA's support for construction,\noperation, and science analysis for the GALEX mission, developed\nin cooperation with Centre National d'Etudes Spatiales of\nFrance and the Korean Ministry of Science and Technology.\nBased on observations obtained with MegaPrime/MegaCam,\na joint project of CFHT and CEA/DAPNIA, at the Canada-\nFrance-Hawaii Telescope (CFHT), which is operated by the National Research Council (NRC) of Canada, the Institut National de Sciences de l'Univers of the Centre National de la\nRecherche Scientifique (CNRS) of France, and the University\nof Hawaii. This work is based in part on data products produced\nat TERAPIX and the Canadian Astronomy Data Centre\nas part of the CFHT Legacy Survey, a collaborative project of\nNRC and CNRS. This paper makes use of photometric redshifts\nproduced jointly by Terapix and the VVDS teams, and\nthe CENCOS interface (http://cencosw.oamp.fr) was used for\ndata retrieval and analyses.\n\nPublished - GEZapj08.pdf
", "abstract": "We present two luminous UV/optical flares from the nuclei of apparently inactive early-type galaxies at z = 0.37 and 0.33 that have the radiative properties of a flare from the tidal disruption of a star. In this paper we report the second candidate tidal disruption event discovery in the UV by the GALEX Deep Imaging Survey and present simultaneous optical light curves from the CFHTLS Deep Imaging Survey for both UV flares. The first few months of the UV/optical light curves are well fitted with the canonical t^(\u22125/3) power-law decay predicted for emission from the fallback of debris from a tidally disrupted star. Chandra ACIS X-ray observations during the flares detect soft X-ray sources with T_(bb) = (2\u20135) \u00d7 10^5 K or \u0393 > 3 and place limits on hard X-ray emission from an underlying AGN down to L_X(2\u201310 keV) \u227e 10^41 ergs s^\u22121. Blackbody fits to the UV/optical spectral energy distributions of the flares indicate peak flare luminosities of \u2273 10^44-10^45 ergs s^\u22121. The temperature, luminosity, and light curves of both flares are in excellent agreement with emission from a tidally disrupted main-sequence star onto a central black hole of several times 10^7 M\u2299. The observed detection rate of our search over ~2.9 deg^2 of GALEX Deep Imaging Survey data spanning from 2003 to 2007 is consistent with tidal disruption rates calculated from dynamical models, and we use these models to make predictions for the detection rates of the next generation of optical synoptic surveys.", "date": "2008-04-01", "date_type": "published", "publication": "Astrophysical Journal", "volume": "676", "number": "2", "publisher": "American Astronomical Society", "pagerange": "944-969", "id_number": "CaltechAUTHORS:20090507-125659445", "issn": "0004-637X", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20090507-125659445", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "Chandra X-Ray Observatory", "grant_number": "G06-7099X" } ] }, "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" }, { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1086/529008", "primary_object": { "basename": "GEZapj08.pdf", "url": "https://authors.library.caltech.edu/records/8bm2z-6h076/files/GEZapj08.pdf" }, "resource_type": "article", "pub_year": "2008", "author_list": "Gezari, S.; Basa, S.; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/80qqb-jn307", "eprint_id": 16870, "eprint_status": "archive", "datestamp": "2023-08-22 10:34:21", "lastmod": "2023-10-19 22:37:24", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Thilker-D-A", "name": { "family": "Thilker", "given": "David A." }, "orcid": "0000-0002-8528-7340" }, { "id": "Bianchi-L", "name": { "family": "Bianchi", "given": "Luciana" } }, { "id": "Meurer-G-R", "name": { "family": "Meurer", "given": "Gerhardt" }, "orcid": "0000-0002-0163-2507" }, { "id": "Gil-de-Paz-A", "name": { "family": "Gil de Paz", "given": "Armando" }, "orcid": "0000-0001-6150-2854" }, { "id": "Boissier-S", "name": { "family": "Boissier", "given": "Samuel" }, "orcid": "0000-0002-9091-2366" }, { "id": "Madore-B-F", "name": { "family": "Madore", "given": "Barry F." }, "orcid": "0000-0002-1576-1676" }, { "id": "Boselli-A", "name": { "family": "Boselli", "given": "Alessandro" } }, { "id": "Ferguson-A-M-N", "name": { "family": "Ferguson", "given": "Annette M. N." } }, { "id": "Mu\u0144oz-Mateos-J-C", "name": { "family": "Mu\u0144oz-Mateos", "given": "Juan Carlos" } }, { "id": "Madsen-G-J", "name": { "family": "Madsen", "given": "Greg J." } }, { "id": "Hameed-S", "name": { "family": "Hameed", "given": "Salman" } }, { "id": "Overzier-R-A", "name": { "family": "Overzier", "given": "Roderik A." } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Friedman-P-G", "name": { "family": "Friedman", "given": "Peter G." } }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Morrissey-P", "name": { "family": "Morrissey", "given": "Patrick" }, "orcid": "0000-0001-8177-1023" }, { "id": "Neff-S-G", "name": { "family": "Neff", "given": "Susan G." } }, { "id": "Schiminovich-D", "name": { "family": "Schiminovich", "given": "David" } }, { "id": "Seibert-M", "name": { "family": "Seibert", "given": "Mark" }, "orcid": "0000-0002-1143-5515" }, { "id": "Small-T", "name": { "family": "Small", "given": "Todd" } }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted K." } }, { "id": "Donas-J", "name": { "family": "Donas", "given": "Jos\u00e9" } }, { "id": "Heckman-T-M", "name": { "family": "Heckman", "given": "Timothy M." } }, { "id": "Lee-Young-Wook", "name": { "family": "Lee", "given": "Young-Wook" } }, { "id": "Milliard-B", "name": { "family": "Milliard", "given": "Bruno" } }, { "id": "Rich-R-M", "name": { "family": "Rich", "given": "R. Michael" }, "orcid": "0000-0003-0427-8387" }, { "id": "Szalay-A-S", "name": { "family": "Szalay", "given": "Alex S." } }, { "id": "Welsh-B-Y", "name": { "family": "Welsh", "given": "Barry Y." } }, { "id": "Yi-Sukyoung-K", "name": { "family": "Yi", "given": "Sukyoung K." } } ] }, "title": "A Search for Extended Ultraviolet Disk (XUV-Disk) Galaxies in the Local Universe", "ispublished": "pub", "full_text_status": "public", "keywords": "galaxies: evolution; ultraviolet: galaxies", "note": "\u00a9 2007 American Astronomical Society.\n\nPrint publication: Issue 2 (2007 December); received 2007 April 30; accepted for publication 2007 September 11. \n\nGALEX (Galaxy Evolution Explorer) is a NASA Small Explorer,\nlaunched in 2003April.We gratefully acknowledgeNASA's\nsupport for construction, operation, and science analysis for the GALEX mission, developed in cooperation with the Centre National d'Etudes Spatiales of France and the Korean Ministry of Science and Technology. A. G. d. P. is financed by the MAGPOP EU Marie Curie Research Training Network and partially by the Spanish Programma Nacional de Astronom\u0131\u00b4a y Astrof\u0131\u00b4sica under grants AYA2003-01676 and AYA2006-02358.\nThis research has made use of the NASA/IPAC Extragalactic\nDatabase (NED). We acknowledge the use of the HyperLeda\ndatabase ( http:// leda.univ-lyon1.fr). The Digitized Sky Surveys were produced at the Space Telescope Science Institute under US Government grant NAGW-2166. Funding for the SDSS and SDSS-II has been provided by the Alfred P. Sloan Foundation, the Participating Institutions, the National Science Foundation, the US Department of Energy, the National Aeronautics and Space Administration, the Japanese Monbukagakusho, the Max Planck Society, and the Higher Education Funding Council for England. Some images presented in this paper were obtained from the Multimission Archive at the Space Telescope Science Institute (MAST). STScI is operated by the Association of Universities\nfor Research in Astronomy, Inc., under NASA contract NAS5-\n26555. Support for MAST for non-HST data is provided by the\nNASA Office of Space Science via grant NAG5-7584 and by\nother grants and contracts. This research has made use of the NASA/IPAC Infrared Science Archive. This publication makes use of data products from the Two Micron All Sky Survey.\nFacilities: GALEX, CTIO:2MASS, FLWO:2MASS, Sloan, PO:1.2m, UKST\n\nPublished - THIapjss07a.pdf
", "abstract": "We have initiated a search for extended ultraviolet disk (XUV-disk) galaxies in the local universe. Here we compare GALEX UV and visible-NIR images of 189 nearby (D < 40 Mpc) S0-Sm galaxies included in the GALEX Atlas of Nearby Galaxies and present the first catalog of XUV-disk galaxies. We find that XUV-disk galaxies are surprisingly common but have varied relative (UV/optical) extent and morphology. Type 1 objects (\u227320% incidence) have structured, UV-bright/optically faint emission features in the outer disk, beyond the traditional star formation threshold. Type 2 XUV-disk galaxies (~10% incidence) exhibit an exceptionally large, UV-bright/optically low surface brightness (LSB) zone having blue UV\u2013K_s outside the effective extent of the inner, older stellar population, but not reaching extreme galactocentric distance. If the activity occurring in XUV-disks is episodic, a higher fraction of present-day spirals could be influenced by such outer disk star formation. Type 1 disks are associated with spirals of all types, whereas Type 2 XUV-disks are predominantly found in late-type spirals. Type 2 XUV-disks are forming stars quickly enough to double their (currently low) stellar mass in the next Gyr (assuming a constant star formation rate). XUV-disk galaxies of both types are systematically more gas-rich than the general galaxy population. Minor external perturbation may stimulate XUV-disk incidence, at least for Type 1 objects. XUV-disks are the most actively evolving galaxies growing via inside-out disk formation in the current epoch, and may constitute a segment of the galaxy population experiencing significant, continued gas accretion from the intergalactic medium or neighboring objects.", "date": "2007-12", "date_type": "published", "publication": "Astrophysical Journal Supplement Series", "volume": "173", "number": "2", "publisher": "American Astronomical Society", "pagerange": "538-571", "id_number": "CaltechAUTHORS:20091203-140520449", "issn": "0067-0049", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20091203-140520449", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "Alfred P. Sloan Foundation" }, { "agency": "Participating Institutions" }, { "agency": "NSF" }, { "agency": "Department of Energy (DOE)" }, { "agency": "NASA" }, { "agency": "Japanese Monbukagakusho" }, { "agency": "Max Planck Society" }, { "agency": "Higher Education Funding Council for England" } ] }, "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" }, { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1086/523853", "primary_object": { "basename": "THIapjss07a.pdf", "url": "https://authors.library.caltech.edu/records/80qqb-jn307/files/THIapjss07a.pdf" }, "resource_type": "article", "pub_year": "2007", "author_list": "Thilker, David A.; Bianchi, Luciana; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/4drye-pfq50", "eprint_id": 17451, "eprint_status": "archive", "datestamp": "2023-08-22 10:34:40", "lastmod": "2023-10-19 23:54:15", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Milliard-B", "name": { "family": "Milliard", "given": "Bruno" } }, { "id": "Heinis-S", "name": { "family": "Heinis", "given": "S\u00e9bastien" } }, { "id": "Blaizot-J", "name": { "family": "Blaizot", "given": "J\u00e9r\u00e9my" } }, { "id": "Arnouts-S", "name": { "family": "Arnouts", "given": "St\u00e9phane" } }, { "id": "Schiminovich-D", "name": { "family": "Schiminovich", "given": "David" } }, { "id": "Budav\u00e1ri-T", "name": { "family": "Budav\u00e1ri", "given": "Tam\u00e1s" } }, { "id": "Donas-J", "name": { "family": "Donas", "given": "Jos\u00e9" } }, { "id": "Treyer-M-A", "name": { "family": "Treyer", "given": "Marie" } }, { "id": "Laget-M", "name": { "family": "Laget", "given": "Michel" } }, { "id": "Viton-M", "name": { "family": "Viton", "given": "Maurice" } }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted K." } }, { "id": "Szalay-A-S", "name": { "family": "Szalay", "given": "Alex S." } }, { "id": "Barlow-T-A", "name": { "family": "Barlow", "given": "Tom A." } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Friedman-P-G", "name": { "family": "Friedman", "given": "Peter G." } }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Morrissey-P", "name": { "family": "Morrissey", "given": "Patrick" }, "orcid": "0000-0001-8177-1023" }, { "id": "Neff-S-G", "name": { "family": "Neff", "given": "Susan G." } }, { "id": "Seibert-M", "name": { "family": "Seibert", "given": "Mark" }, "orcid": "0000-0002-1143-5515" }, { "id": "Small-T", "name": { "family": "Small", "given": "Todd" } }, { "id": "Bianchi-L", "name": { "family": "Bianchi", "given": "Luciana" } }, { "id": "Heckman-T-M", "name": { "family": "Heckman", "given": "Timothy M." } }, { "id": "Lee-Young-Wook", "name": { "family": "Lee", "given": "Young-Wook" } }, { "id": "Madore-B-F", "name": { "family": "Madore", "given": "Barry F." }, "orcid": "0000-0002-1576-1676" }, { "id": "Rich-R-M", "name": { "family": "Rich", "given": "R. Michael" }, "orcid": "0000-0003-0427-8387" }, { "id": "Welsh-B-Y", "name": { "family": "Welsh", "given": "Barry Y." } }, { "id": "Yi-Sukyoung-K", "name": { "family": "Yi", "given": "Sukyoung K." } }, { "id": "Xu-C-Kevin", "name": { "family": "Xu", "given": "C. K." }, "orcid": "0000-0002-1588-6700" } ] }, "title": "Clustering Properties of Rest-Frame UV-Selected Galaxies. I. the Correlation Length Derived from GALEX Data in the Local Universe", "ispublished": "pub", "full_text_status": "public", "keywords": "stars : formation; ultraviolet : galaxies", "note": "\u00a9 2007 The American Astronomical Society.\nReceived 2006 August 22; accepted 2007 October 16.\nIt is with great pleasure that we thank Jean-Michel Deharveng\nfor support and discussions. GALEX (Galaxy Evolution Explorer)\nis a NASA Small Explorer, launched in 2003 April. We gratefully\nacknowledge NASA's support for construction, operation, and\nscience analysis for the GALEX mission, developed in cooperation\nwith the Centre National d'Etudes Spatiales of France and\nthe Korean Ministry of Science and Technology.\n\nPublished - MILapjss07.pdf
", "abstract": "We present the first measurements of the angular correlation function of galaxies selected in the far (1530 \u00c5) and near (2310 \u00c5) ultraviolet from the GALEX survey fields overlapping SDSS DR5 in low Galactic extinction regions. The area used covers 120 deg^2 (GALEX Medium Imaging Survey) down to magnitude AB = 22, yielding a total of 100,000 galaxies. The mean correlation length is ~3.7 \u00b1 0.6 Mpc, and no significant trend is seen for this value as a function of the limiting apparent magnitude or between the GALEX bands. This estimate is close to that found from samples of blue galaxies in the local universe selected in the visible and similar to that derived at z \u2243 3 for LBGs with similar rest frame selection criteria. This result supports models that predict antibiasing of star-forming galaxies at low redshift and brings an additional clue to the downsizing of star formation at z < 1.", "date": "2007-12", "date_type": "published", "publication": "Astrophysical Journal Supplement Series", "volume": "173", "number": "2", "publisher": "American Astronomical Society", "pagerange": "494-502", "id_number": "CaltechAUTHORS:20100211-100214164", "issn": "0067-0049", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20100211-100214164", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA" } ] }, "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" }, { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1086/524658", "primary_object": { "basename": "MILapjss07.pdf", "url": "https://authors.library.caltech.edu/records/4drye-pfq50/files/MILapjss07.pdf" }, "resource_type": "article", "pub_year": "2007", "author_list": "Milliard, Bruno; Heinis, S\u00e9bastien; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/2tyef-r7q04", "eprint_id": 20103, "eprint_status": "archive", "datestamp": "2023-08-22 10:36:52", "lastmod": "2023-10-20 22:13:59", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Heinis-S", "name": { "family": "Heinis", "given": "S\u00e9bastien" } }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted K." } }, { "id": "Barlow-T-A", "name": { "family": "Barlow", "given": "Tom A." } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Friedman-P-G", "name": { "family": "Friedman", "given": "Peter G." } }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Morrissey-P", "name": { "family": "Morrissey", "given": "Patrick" }, "orcid": "0000-0001-8177-1023" }, { "id": "Seibert-M", "name": { "family": "Seibert", "given": "Mark" }, "orcid": "0000-0002-1143-5515" }, { "id": "Small-T", "name": { "family": "Small", "given": "Todd" } }, { "id": "Xu-C-Kevin", "name": { "family": "Xu", "given": "C. K." }, "orcid": "0000-0002-1588-6700" } ] }, "title": "Clustering Properties of Rest-Frame UV-Selected Galaxies. II. Migration of Star Formation Sites with Cosmic Time from GALEX and CFHTLS", "ispublished": "pub", "full_text_status": "public", "keywords": "stars: formation; ultraviolet: galaxies", "note": "\u00a9 2007 The American Astronomical Society.\nReceived 2006 August 22; accepted 2007 May 31.\n\nWe thank Christian Marinoni for stimulating discussions. GALEX\n(Galaxy Evolution Explorer) is a NASA Small Explorer, launched in\n2003 April. We gratefully acknowledge NASA's support for construction,\noperation, and science analysis for the GALEX mission, developed\nin cooperation with the Centre National d'Etudes Spatiales\nof France and the Korean Ministry of Science and Technology.\nThis study is also based on observations obtained with\nMegaPrime/MegaCam, a joint project of the Canada-France-\nHawaii Telescope (CFHT) and CEA/DAPNIA, at CFHT, which\nis operated by the National Research Council (NRC) of Canada,\nthe Institut National des Science de l'Univers of the Centre National\nde la Recherche Scientifique (CNRS) of France, and the\nUniversity of Hawaii. This work is based in part on data products\nproduced at TERAPIX and the Canadian Astronomy Data Centre\nas part of the CFHT Legacy Survey, a collaborative project of\nNRC and CNRS.\n\nPublished - HEIapjss07.pdf
", "abstract": "We analyze the clustering properties of ultraviolet-selected galaxies by using GALEX-SDSS data at z < 0.6 and CFHTLS deep u' imaging at z ~ 1. These data sets provide a unique basis at z \u2264 1 which can be directly compared with high-redshift samples built with similar selection criteria. We discuss the dependence of the correlation function parameters (r_0 and \u03b4) on the ultraviolet luminosity, as well as the linear bias evolution. We find that the bias parameter shows a gradual decline from high (b_8 \u2273 2) to low redshift (b_8 \u2243 0.79_(\u22120.08)^(+0.1)). When accounting for the fraction of the star formation activity enclosed in the different samples, our results suggest that the bulk of star formation migrated from high-mass dark matter halos at z > 2 (10^(12) M_\u2299 \u2264 M_(min) \u2264 10^(13) M_\u2299, located in high-density regions) to less massive halos at low redshift (M_(min) \u2264 10^(12) M_\u2299, located in low-density regions). This result extends the \"downsizing\" picture (shift of the star formation activity from high stellar mass systems at high z to low stellar mass at low z) to the dark matter distribution.", "date": "2007-12", "date_type": "published", "publication": "Astrophysical Journal Supplement Series", "volume": "173", "number": "2", "publisher": "American Astronomical Society", "pagerange": "503-511", "id_number": "CaltechAUTHORS:20100923-113018914", "issn": "0067-0049", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20100923-113018914", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" }, { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1086/520580", "primary_object": { "basename": "HEIapjss07.pdf", "url": "https://authors.library.caltech.edu/records/2tyef-r7q04/files/HEIapjss07.pdf" }, "resource_type": "article", "pub_year": "2007", "author_list": "Heinis, S\u00e9bastien; Wyder, Ted K.; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/vg2dj-krq39", "eprint_id": 16865, "eprint_status": "archive", "datestamp": "2023-08-22 10:34:11", "lastmod": "2023-10-19 22:37:13", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Treyer-M", "name": { "family": "Treyer", "given": "Marie" } }, { "id": "Schiminovich-D", "name": { "family": "Schiminovich", "given": "David" } }, { "id": "Johnson-B", "name": { "family": "Johnson", "given": "Ben" } }, { "id": "Seibert-M", "name": { "family": "Seibert", "given": "Mark" }, "orcid": "0000-0002-1143-5515" }, { "id": "Wyder-T", "name": { "family": "Wyder", "given": "Ted" } }, { "id": "Barlow-T-A", "name": { "family": "Barlow", "given": "Tom A." } }, { "id": "Conrow-T", "name": { "family": "Conrow", "given": "Tim" } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Friedman-P-G", "name": { "family": "Friedman", "given": "Peter G." } }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Morrissey-P", "name": { "family": "Morrissey", "given": "Patrick" }, "orcid": "0000-0001-8177-1023" }, { "id": "Neff-S-G", "name": { "family": "Neff", "given": "Susan G." } }, { "id": "Small-T", "name": { "family": "Small", "given": "Todd" } }, { "id": "Bianchi-L", "name": { "family": "Bianchi", "given": "Luciana" } }, { "id": "Donas-J", "name": { "family": "Donas", "given": "Jos\u00e9" } }, { "id": "Heckman-T-M", "name": { "family": "Heckman", "given": "Timothy M." } }, { "id": "Lee-Young-Wook", "name": { "family": "Lee", "given": "Young-Wook" } }, { "id": "Madore-B-F", "name": { "family": "Madore", "given": "Barry F." }, "orcid": "0000-0002-1576-1676" }, { "id": "Milliard-B", "name": { "family": "Milliard", "given": "Bruno" } }, { "id": "Rich-R-M", "name": { "family": "Rich", "given": "R. Michael" }, "orcid": "0000-0003-0427-8387" }, { "id": "Szalay-A-S", "name": { "family": "Szalay", "given": "Alex S." } }, { "id": "Welsh-B-Y", "name": { "family": "Welsh", "given": "Barry Y." } }, { "id": "Yi-Sukyoung-K", "name": { "family": "Yi", "given": "Sukyoung K." } } ] }, "title": "Extinction-corrected Star Formation Rates Empirically Derived from Ultraviolet-Optical Colors", "ispublished": "pub", "full_text_status": "public", "keywords": "galaxies: evolution; galaxies: fundamental parameters; surveys; ultraviolet: galaxies", "note": "\u00a9 2007 American Astronomical Society.\n\nPrint publication: Issue 2 (2007 December); received 2007 April 24; accepted for publication 2007 July 19.\n\nThe authors thank their anonymous referee, whose many comments greatly improved this paper. GALEX is a NASA Small Explorer, launched in 2003 April. We gratefully acknowledge NASA's support for its construction, operation, and science analysis, as well as the cooperation of the French Centre National d'Etudes Spatiales and the Korean Ministry of Science and Technology.\n\nPublished - TREapjss07.pdf
", "abstract": "Using a sample of galaxies from the Sloan Digital Sky Survey spectroscopic catalog with measured star formation rates (SFRs) and ultraviolet (UV) photometry from the GALEX Medium Imaging Survey, we derived empirical linear correlations between the SFR to UV luminosity ratio and the UV\u2013optical colors of blue-sequence galaxies. The relations provide a simple prescription to correct UV data for dust attenuation that best reconciles the SFRs derived from UV and emission-line data. The method breaks down for the red-sequence population as well as for very blue galaxies such as the local \"supercompact\" UV luminous galaxies and the majority of high-redshift Lyman break galaxies, which form a low-attenuation sequence of their own.", "date": "2007-12", "date_type": "published", "publication": "Astrophysical Journal Supplement Series", "volume": "173", "number": "2", "publisher": "American Astronomical Society", "pagerange": "256-266", "id_number": "CaltechAUTHORS:20091203-110549888", "issn": "0067-0049", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20091203-110549888", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA" } ] }, "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" }, { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1086/521794", "primary_object": { "basename": "TREapjss07.pdf", "url": "https://authors.library.caltech.edu/records/vg2dj-krq39/files/TREapjss07.pdf" }, "resource_type": "article", "pub_year": "2007", "author_list": "Treyer, Marie; Schiminovich, David; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/6h0f8-mtg72", "eprint_id": 18050, "eprint_status": "archive", "datestamp": "2023-08-22 10:36:14", "lastmod": "2023-10-20 15:32:12", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Donas-J", "name": { "family": "Donas", "given": "Jos\u00e9" } }, { "id": "Deharveng-J-M", "name": { "family": "Deharveng", "given": "Jean-Michel" } }, { "id": "Rich-R-M", "name": { "family": "Rich", "given": "R. Michael" }, "orcid": "0000-0003-0427-8387" }, { "id": "Yi-Sukyoung-K", "name": { "family": "Yi", "given": "Sukyoung K." } }, { "id": "Lee-Young-Wook", "name": { "family": "Lee", "given": "Young-Wook" } }, { "id": "Boselli-A", "name": { "family": "Boselli", "given": "Alessandro" } }, { "id": "Gil-de-Paz-A", "name": { "family": "Gil de Paz", "given": "Armando" }, "orcid": "0000-0001-6150-2854" }, { "id": "Boissier-S", "name": { "family": "Boissier", "given": "Samuel" }, "orcid": "0000-0002-9091-2366" }, { "id": "Charlot-S", "name": { "family": "Charlot", "given": "St\u00e9phane" } }, { "id": "Salim-S", "name": { "family": "Salim", "given": "Samir" }, "orcid": "0000-0003-2342-7501" }, { "id": "Bianchi-L-C", "name": { "family": "Bianchi", "given": "Luciana" }, "orcid": "0000-0001-7746-5461" }, { "id": "Barlow-T-A", "name": { "family": "Barlow", "given": "Tom A." } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Friedman-P-G", "name": { "family": "Friedman", "given": "Peter G." } }, { "id": "Heckman-T-M", "name": { "family": "Heckman", "given": "Timothy M." } }, { "id": "Madore-B-F", "name": { "family": "Madore", "given": "Barry F." }, "orcid": "0000-0002-1576-1676" }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Milliard-B", "name": { "family": "Milliard", "given": "Bruno" } }, { "id": "Morrissey-P", "name": { "family": "Morrissey", "given": "Patrick" }, "orcid": "0000-0001-8177-1023" }, { "id": "Neff-S-G", "name": { "family": "Neff", "given": "Susan G." } }, { "id": "Schiminovich-D", "name": { "family": "Schiminovich", "given": "David" } }, { "id": "Seibert-M", "name": { "family": "Seibert", "given": "Mark" }, "orcid": "0000-0002-1143-5515" }, { "id": "Small-T-A", "name": { "family": "Small", "given": "Todd" } }, { "id": "Szalay-A-S", "name": { "family": "Szalay", "given": "Alex S." } }, { "id": "Welsh-B-Y", "name": { "family": "Welsh", "given": "Barry Y." } }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted K." } } ] }, "title": "GALEX UV Color Relations for Nearby Early-Type Galaxies", "ispublished": "pub", "full_text_status": "public", "keywords": "galaxies: elliptical and lenticular, cD; galaxies: photometry; galaxies: stellar content; ultraviolet: galaxies", "note": "\u00a9 2007 American Astronomical Society.\n\nReceived 2006 May 4; accepted 2006 July 20.\n\nWe wish to acknowledge Jakob Walcher for kindly extracting\nfor us useful data from stochastic realizations of star formation\nmodels. GALEX (Galaxy Evolution Explorer) is a NASA Small\nExplorer, launched in 2003 April. We gratefully acknowledge\nNASA's support for construction, operation, and science analysis\nfor the GALEX mission, developed in cooperation with the\nCentre National d'Etudes Spatiales of France and the Korean\nMinistry of Science and Technology. The grating, window, and\naspheric corrector were supplied by France. We acknowledge\nthe dedicated team of engineers, technicians, and administrative\nstaff from JPL/Caltech; Orbital Sciences Corporation; University\nof California, Berkeley; Laboratory Astrophysique Marseille;\nand the other institutions who made this mission possible. This\nwork was partly supported by grant R01-2006-000-10716-0 (SKY)\nfrom the Basic Research Program of the Korea Science and Engineering\nFoundation. A. G. d. P. is financed by the MAGPOP EU\nMarie Curie Research Training Network.\n\nFacilities: GALEX\n\nPublished - DONapjss07.pdf
", "abstract": "We use GALEX/optical photometry to construct color-color relationships for early-type galaxies sorted by morphological type. We have matched objects in the GALEX GR1 public release and the first IR1.1 internal release, with the RC3 early-type galaxies having a morphological type -5.5 \u2264 T < \u2212 1.5, with mean error on T < 1.5 and mean error on (B \u2212 V)_T < 0.05. After visual inspection of each match, we are left with 130 galaxies with reliable GALEX pipeline photometry in the far-UV and near-UV bands. This sample is divided into ellipticals (-5.5 \u2264 T < \u2212 3.5) and lenticulars (-3.5 \u2264 T < \u2212 1.5). After correction for Galactic extinction, the color-color diagrams FUV \u2212 NUV versus (B \u2212 V)_(Tc) are plotted for the two subsamples. We find a tight anticorrelation between the FUV \u2212 NUV and (B \u2212 V)_(Tc) colors for ellipticals, with the UV color getting bluer when the (B \u2212 V)_(Tc) gets redder. This relationship very likely is an extension of the color-metallicity relationship in the GALEX NUV band. We suspect that the main source of the correlation is metal line blanketing in the NUV band. The FUV \u2212 NUV versus B \u2212 V correlation has larger scatter for lenticular galaxies; we speculate that this reflects the presence of low-level star formation. If the latter objects (i.e., those that are blue both in FUV \u2212 NUV and in B \u2212 V) are interpreted as harboring recent star formation activity, this would be the case for a few percent (~4%) of ellipticals and ~15% of lenticulars; this would mean about 10% of early-type galaxies have residual star formation in our full sample of 130 early-type galaxies. We also plot FUV \u2212 NUV versus the Mg_2 index and central velocity dispersion. We find a tight anticorrelation between FUV \u2212 NUV and the Mg_2 index; we suspect that this reflects blanketing in the NUV band being correlated with overall metallicity. We find a marginal anticorrelation of FUV \u2212 V_T with Mg_2 for elliptical galaxies.", "date": "2007-12", "date_type": "published", "publication": "Astrophysical Journal Supplement Series", "volume": "173", "number": "2", "publisher": "American Astronomical Society", "pagerange": "597-606", "id_number": "CaltechAUTHORS:20100422-120941446", "issn": "0067-0049", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20100422-120941446", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "Korea Science and Engineering Foundation", "grant_number": "R01-2006-000-10716-0" } ] }, "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" }, { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1086/516643", "primary_object": { "basename": "DONapjss07.pdf", "url": "https://authors.library.caltech.edu/records/6h0f8-mtg72/files/DONapjss07.pdf" }, "resource_type": "article", "pub_year": "2007", "author_list": "Donas, Jos\u00e9; Deharveng, Jean-Michel; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/b52a4-nt324", "eprint_id": 16729, "eprint_status": "archive", "datestamp": "2023-08-22 10:33:50", "lastmod": "2023-10-19 22:30:59", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Xu-C-Kevin", "name": { "family": "Xu", "given": "C. Kevin" }, "orcid": "0000-0002-1588-6700" }, { "id": "Shupe-David-L", "name": { "family": "Shupe", "given": "David" }, "orcid": "0000-0003-4401-0430" }, { "id": "Buat-V", "name": { "family": "Buat", "given": "Veronique" } }, { "id": "Rowan-Robinson-M", "name": { "family": "Rowan-Robinson", "given": "Michael" } }, { "id": "Babbedge-T", "name": { "family": "Babbedge", "given": "Thomas" } }, { "id": "Iglesias-P\u00e1ramo-J", "name": { "family": "Iglesias-P\u00e1ramo", "given": "Jorge" } }, { "id": "Takeuchi-Tsutomu-T", "name": { "family": "Takeuchi", "given": "Tsutomu T." } }, { "id": "Barlow-T-A", "name": { "family": "Barlow", "given": "Tom A." } }, { "id": "Conrow-T", "name": { "family": "Conrow", "given": "Tim" } }, { "id": "Fang-Fan", "name": { "family": "Fang", "given": "Fan" } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Friedman-P-G", "name": { "family": "Friedman", "given": "Peter G." } }, { "id": "Gonzalez-Solares-E", "name": { "family": "Gonzalez-Solares", "given": "Eduardo" } }, { "id": "Lonsdale-C-J", "name": { "family": "Lonsdale", "given": "Carol" }, "orcid": "0000-0003-0898-406X" }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Morrissey-P", "name": { "family": "Morrissey", "given": "Patrick" }, "orcid": "0000-0001-8177-1023" }, { "id": "Neff-S-G", "name": { "family": "Neff", "given": "Susan G." } }, { "id": "Schiminovich-D", "name": { "family": "Schiminovich", "given": "David" } }, { "id": "Seibert-M", "name": { "family": "Seibert", "given": "Mark" }, "orcid": "0000-0002-1143-5515" }, { "id": "Small-T", "name": { "family": "Small", "given": "Todd" } }, { "id": "Smith-Gene", "name": { "family": "Smith", "given": "Gene" } }, { "id": "Surace-J-A", "name": { "family": "Surace", "given": "Jason" }, "orcid": "0000-0001-7291-0087" }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted K." } } ] }, "title": "IR and UV Galaxies at z = 0.6: Evolution of Dust Attenuation and Stellar Mass as Revealed by SWIRE and GALEX", "ispublished": "pub", "full_text_status": "public", "keywords": "dust, extinction; galaxies: active; galaxies: evolution; infrared: galaxies; ultraviolet: galaxies", "note": "\u00a9 2007 American Astronomical Society.\n\nPrint publication: Issue 2 (2007 December); received 2006 April 10; accepted 2006 December 4.\n\nGALEX (Galaxy Evolution Explorer ) is a NASA Small Explorer,\nlaunched in 2003 April. We gratefully acknowledge\nNASA's support for construction, operation, and science analysis\nfor the GALEX mission, developed in cooperation with the\nCentre National d'Etudes Spatiales of France and the Korean Ministry\nof Science and Technology. Support for this work, part of the\nSpitzer Space Telescope Legacy Science Program, was provided\nby NASA through an award issued by JPL under NASA contract\n1407. This publication makes use of data products from the Two\nMicron All Sky Survey, which is a joint project of the University\nof Massachusetts and the Infrared Processing and Analysis\nCenter/California Institute of Technology, funded by NASA and\nNSF.\n\nPublished - XUCapjss07.pdf
", "abstract": "We study dust attenuation and stellar mass of z ~ 0.6 star-forming galaxies using new SWIRE observations in IR and GALEX observations in UV. Two samples are selected from the SWIRE and GALEX source catalogs in the SWIRE/GALEX field ELAIS-N1-00 (\u03a9 = 0.8 deg^2). The UV-selected sample has 600 galaxies with photometric redshift (hereafter photo-z) 0.5 \u2264 z \u2264 0.7 and NUV \u2264 23.5 (corresponding to L_(FUV) \u2265 10^(9.6) L_\u2609). The IR-selected sample contains 430 galaxies with f_(24 \u03bcm) \u2265 0.2 mJy (L_(dust) \u2265 10^(10.8) L_\u2609) in the same photo-z range. It is found that the mean L_(dust)/L_(FUV) ratios of the z = 0.6 UV galaxies are consistent with that of their z = 0 counterparts of the same L_(FUV). For IR galaxies, the mean L_(dust)/L_(FUV) ratios of the z = 0.6 LIRGs (L_(dust) ~ 10^(11) L_\u2609) are about a factor of 2 lower than local LIRGs, whereas z = 0.6 ULIRGs (L_(dust) ~ 10^(12) L_\u2609) have the same mean L_(dust)/L_(FUV) ratios as their local counterparts. This is consistent with the hypothesis that the dominant component of LIRG population has changed from large, gas-rich spirals at z > 0.5 to major mergers at z = 0. The stellar mass of z = 0.6 UV galaxies of L_(FUV) \u2264 10^(10.2) L_\u2609 is about a factor of 2 less than their local counterparts of the same luminosity, indicating growth of these galaxies. The mass of z = 0.6 UV luminous galaxies (UVLGs: L_(FUV) > 10^(10.2) L_\u2609) and IR-selected galaxies, which are nearly exclusively LIRGs and ULIRGs, is the same as their local counterparts.", "date": "2007-12", "date_type": "published", "publication": "Astrophysical Journal Supplement Series", "volume": "173", "number": "2", "publisher": "American Astronomical Society", "pagerange": "432-440", "id_number": "CaltechAUTHORS:20091117-111643880", "issn": "0067-0049", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20091117-111643880", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA/JPL", "grant_number": "1407" } ] }, "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" }, { "id": "Space-Astrophysics-Laboratory" }, { "id": "Infrared-Processing-and-Analysis-Center-(IPAC)" } ] }, "doi": "10.1086/516641", "primary_object": { "basename": "XUCapjss07.pdf", "url": "https://authors.library.caltech.edu/records/b52a4-nt324/files/XUCapjss07.pdf" }, "resource_type": "article", "pub_year": "2007", "author_list": "Xu, C. Kevin; Shupe, David; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/0ddag-5k140", "eprint_id": 17457, "eprint_status": "archive", "datestamp": "2023-08-22 10:34:45", "lastmod": "2023-10-19 23:54:34", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Mallery-R-P", "name": { "family": "Mallery", "given": "Ryan P." } }, { "id": "Rich-R-M", "name": { "family": "Rich", "given": "R. Michael" }, "orcid": "0000-0003-0427-8387" }, { "id": "Salim-S", "name": { "family": "Salim", "given": "Samir" }, "orcid": "0000-0003-2342-7501" }, { "id": "Small-T-A", "name": { "family": "Small", "given": "Todd" } }, { "id": "Charlot-S", "name": { "family": "Charlot", "given": "St\u00e9phane" } }, { "id": "Seibert-M", "name": { "family": "Seibert", "given": "Mark" }, "orcid": "0000-0002-1143-5515" }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted" } }, { "id": "Barlow-T-A", "name": { "family": "Barlow", "given": "Tom A." } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Friedman-P-G", "name": { "family": "Friedman", "given": "Peter G." } }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Morrissey-P", "name": { "family": "Morrissey", "given": "Patrick" }, "orcid": "0000-0001-8177-1023" }, { "id": "Neff-S-G", "name": { "family": "Neff", "given": "Susan G." } }, { "id": "Schiminovich-D", "name": { "family": "Schiminovich", "given": "David" } }, { "id": "Bianchi-L-C", "name": { "family": "Bianchi", "given": "Luciana" }, "orcid": "0000-0001-7746-5461" }, { "id": "Donas-J", "name": { "family": "Donas", "given": "Jos\u00e9" } }, { "id": "Heckman-T-M", "name": { "family": "Heckman", "given": "Timothy M." } }, { "id": "Lee-Young-Wook", "name": { "family": "Lee", "given": "Young-Wook" } }, { "id": "Madore-B-F", "name": { "family": "Madore", "given": "Barry F." }, "orcid": "0000-0002-1576-1676" }, { "id": "Milliard-B", "name": { "family": "Milliard", "given": "Bruno" } }, { "id": "Szalay-A-S", "name": { "family": "Szalay", "given": "Alex S." } }, { "id": "Welsh-B-Y", "name": { "family": "Welsh", "given": "Barry Y." } }, { "id": "Yi-Sukyoung-K", "name": { "family": "Yi", "given": "Sukyoung" } } ] }, "title": "Keck DEIMOS Spectroscopy of a GALEX UV-Selected Sample from the Medium Imaging Survey", "ispublished": "pub", "full_text_status": "public", "keywords": "galaxies : active; galaxies : high-redshift; galaxies : starburst; ultraviolet : galaxies", "note": "\u00a9 2007 The American Astronomical Society.\nReceived 2006 January 25; accepted 2006 July 25.\nGALEX is a NASA Small Explorer, launched in 2003 April.\nWe gratefully acknowledge NASA's support for construction,\noperation, and science analysis for the GALEX mission, developed\nin cooperation with the Centre National d'Etudes Spatiales\nof France and the Korean Ministry of Science and Technology.\nThe authors wish to recognize and acknowledge the very significant\ncultural role and reverence that the summit of Mauna\nKea has always had within the indigenous Hawaiian community.\nWe are most fortunate to have the opportunity to conduct observations\nfrom this mountain. The analysis pipeline used to\nreduce the DEIMOS data was developed at University of California,\nBerkeley, with support from NSF grant AST 00-71048.\nThe authors thank an anonymous referee for extremely helpful\ncomments.\nFacilities: GALEX, Keck:II.\n\nPublished - MALapjss07a.pdf
", "abstract": "We report results from a pilot program to obtain spectroscopy for objects detected in the Galaxy Evolution Explorer (GALEX) Medium Imaging Survey (MIS). Our study examines the properties of galaxies detected by GALEX fainter than the Sloan Digital Sky Survey (SDSS) spectroscopic survey. This is the first study to extend the techniques of Salim and coworkers to estimate stellar masses, star formation rates (SFRs), and the b (star formation history) parameter for star-forming galaxies out to z ~ 0.7. We obtain redshifts for 50 GALEX MIS sources reaching NUV = 23.9 (AB mag) having counterparts in the SDSS Data Release 4 (DR4). Of our sample, 43 are star-forming galaxies with z < 0.7, 3 have emission-line ratios indicative of active galactic nuclei with z < 0.7, and 4 objects with z > 1 are QSOs, 3 of which are not previously cataloged. We compare our sample to a much larger sample of ~50,000 matched GALEX/SDSS galaxies with SDSS spectroscopy; while our survey is shallow, the optical counterparts to our sources reach ~3 mag fainter in SDSS r than the SDSS spectroscopic sample. We use emission-line diagnostics for the galaxies to determine that the sample contains mostly star-forming galaxies. The galaxies in the sample populate the blue sequence in the NUV \u2212 r versus Mr color-magnitude diagram. The derived stellar masses of the galaxies range from 10^8 to 10^(11) M_\u2299, and derived SFRs are between 10^(\u22121) and 10^2 M_\u2299 yr^(\u22121). Our sample has SFRs, luminosities, and velocity dispersions that are similar to the samples of faint compact blue galaxies studied previously in the same redshift range by Koo and collaborators, Guzm\u00e1n and collaborators, and Phillips and collaborators. However, our sample is ~2 mag fainter in surface brightness than the compact blue galaxies. We find that the star formation histories for a majority of the galaxies are consistent with a recent starburst within the last 100 Myr.", "date": "2007-12", "date_type": "published", "publication": "Astrophysical Journal Supplement Series", "volume": "173", "number": "2", "publisher": "American Astronomical Society", "pagerange": "471-481", "id_number": "CaltechAUTHORS:20100211-112458004", "issn": "0067-0049", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20100211-112458004", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NSF", "grant_number": "AST 00-71048" } ] }, "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" }, { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1086/516638", "primary_object": { "basename": "MALapjss07a.pdf", "url": "https://authors.library.caltech.edu/records/0ddag-5k140/files/MALapjss07a.pdf" }, "resource_type": "article", "pub_year": "2007", "author_list": "Mallery, Ryan P.; Rich, R. Michael; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/c9yh3-b1y96", "eprint_id": 17464, "eprint_status": "archive", "datestamp": "2023-08-22 10:34:50", "lastmod": "2023-10-19 23:55:00", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Mallery-R-P", "name": { "family": "Mallery", "given": "Ryan P." } }, { "id": "Kewley-L-J", "name": { "family": "Kewley", "given": "Lisa J." }, "orcid": "0000-0001-8152-3943" }, { "id": "Rich-R-M", "name": { "family": "Rich", "given": "R. Michael" }, "orcid": "0000-0003-0427-8387" }, { "id": "Salim-S", "name": { "family": "Salim", "given": "Samir" }, "orcid": "0000-0003-2342-7501" }, { "id": "Charlot-S", "name": { "family": "Charlot", "given": "St\u00e9phane" } }, { "id": "Tremonti-C-A", "name": { "family": "Tremonti", "given": "Christy" } }, { "id": "Seibert-M", "name": { "family": "Seibert", "given": "Mark" }, "orcid": "0000-0002-1143-5515" }, { "id": "Small-T-A", "name": { "family": "Small", "given": "Todd" } }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted" } }, { "id": "Barlow-T-A", "name": { "family": "Barlow", "given": "Tom A." } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Friedman-P-G", "name": { "family": "Friedman", "given": "Peter G." } }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Morrissey-P", "name": { "family": "Morrissey", "given": "Patrick" }, "orcid": "0000-0001-8177-1023" }, { "id": "Neff-S-G", "name": { "family": "Neff", "given": "Susan G." } }, { "id": "Schiminovich-D", "name": { "family": "Schiminovich", "given": "David" } }, { "id": "Bianchi-L-C", "name": { "family": "Bianchi", "given": "Luciana" }, "orcid": "0000-0001-7746-5461" }, { "id": "Donas-J", "name": { "family": "Donas", "given": "Jos\u00e9" } }, { "id": "Heckman-T-M", "name": { "family": "Heckman", "given": "Timothy M." } }, { "id": "Lee-Young-Wook", "name": { "family": "Lee", "given": "Young-Wook" } }, { "id": "Madore-B-F", "name": { "family": "Madore", "given": "Barry F." }, "orcid": "0000-0002-1576-1676" }, { "id": "Milliard-B", "name": { "family": "Milliard", "given": "Bruno" } }, { "id": "Szalay-A-S", "name": { "family": "Szalay", "given": "Alex S." } }, { "id": "Welsh-B-Y", "name": { "family": "Welsh", "given": "Barry Y." } }, { "id": "Yi-Sukyoung-K", "name": { "family": "Yi", "given": "Sukyoung" } } ] }, "title": "Nitrogen Production in Starburst Galaxies Detected by GALEX", "ispublished": "pub", "full_text_status": "public", "keywords": "galaxies : abundances; galaxies : fundamental parameters; galaxies : starburst; ultraviolet : galaxies", "note": "\u00a9 2007 The American Astronomical Society.\nReceived 2006 October 13; accepted 2007 April 5.\nGALEX is a NASA Small Explorer, launched in 2003 April.\nWe gratefully acknowledge NASA's support for construction, operation,\nand science analysis for the GALEX mission, developed in\ncooperation with the CNES of France and the Korean Ministry of\nScience and Technology. Funding for the creation and distribution\nof the SDSS Archive has been provided by the Alfred P. Sloan\nFoundation, the Participating Institutions, NASA, NSF, DoE,\nMonbukagakusho, and the Max Planck Society.\nFacilities: GALEX.\n\nPublished - MALapjss07b.pdf
", "abstract": "We investigate the production of nitrogen in star-forming galaxies with ultraviolet (UV) radiation detected by the Galaxy Evolution Explorer Satellite (GALEX). We use a sample of 8745 GALEX emission-line galaxies matched to the Sloan Digital Sky Survey (SDSS) spectroscopic sample. We derive both gas-phase oxygen and nitrogen abundances for the sample and apply stellar population synthesis models to derive stellar masses and star formation histories of the galaxies. We compare oxygen abundances derived using three different diagnostics. We derive the specific star formation rates of the galaxies by modeling the seven-band GALEX+SDSS photometry. We find that galaxies that have log (SFR/M_*) \u2273 \u2212 10.0 typically have values of log (N/O) ~ 0.05 dex less than galaxies with log (SFR/M_*) \u227e \u2212 10.0 and similar oxygen abundances.", "date": "2007-12", "date_type": "published", "publication": "Astrophysical Journal Supplement Series", "volume": "173", "number": "2", "publisher": "American Astronomical Society", "pagerange": "482-493", "id_number": "CaltechAUTHORS:20100212-094447213", "issn": "0067-0049", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20100212-094447213", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" }, { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1086/518833", "primary_object": { "basename": "MALapjss07b.pdf", "url": "https://authors.library.caltech.edu/records/c9yh3-b1y96/files/MALapjss07b.pdf" }, "resource_type": "article", "pub_year": "2007", "author_list": "Mallery, Ryan P.; Kewley, Lisa J.; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/j5awf-89828", "eprint_id": 17404, "eprint_status": "archive", "datestamp": "2023-08-22 10:34:36", "lastmod": "2023-10-19 23:51:28", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Kauffmann-G", "name": { "family": "Kauffmann", "given": "Guinevere" } }, { "id": "Heckman-T-M", "name": { "family": "Heckman", "given": "Timothy M." } }, { "id": "Budav\u00e1ri-T", "name": { "family": "Budav\u00e1ri", "given": "Tam\u00e1s" } }, { "id": "Charlot-S", "name": { "family": "Charlot", "given": "Stephane" } }, { "id": "Hoopes-C-G", "name": { "family": "Hoopes", "given": "Charles G." } }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Seibert-M", "name": { "family": "Seibert", "given": "Mark" }, "orcid": "0000-0002-1143-5515" }, { "id": "Barlow-T-A", "name": { "family": "Barlow", "given": "Tom A." } }, { "id": "Bianchi-L", "name": { "family": "Bianchi", "given": "Luciana" } }, { "id": "Conrow-T", "name": { "family": "Conrow", "given": "Tim" } }, { "id": "Donas-J", "name": { "family": "Donas", "given": "Jos\u00e9" } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Friedman-P-G", "name": { "family": "Friedman", "given": "Peter G." } }, { "id": "Lee-Young-Wook", "name": { "family": "Lee", "given": "Young-Wook" } }, { "id": "Madore-B-F", "name": { "family": "Madore", "given": "Barry F." }, "orcid": "0000-0002-1576-1676" }, { "id": "Milliard-B", "name": { "family": "Milliard", "given": "Bruno" } }, { "id": "Morrissey-P", "name": { "family": "Morrissey", "given": "Patrick F." }, "orcid": "0000-0001-8177-1023" }, { "id": "Neff-S-G", "name": { "family": "Neff", "given": "Susan G." } }, { "id": "Rich-R-M", "name": { "family": "Rich", "given": "R. Michael" }, "orcid": "0000-0003-0427-8387" }, { "id": "Schiminovich-D", "name": { "family": "Schiminovich", "given": "David" } }, { "id": "Small-T", "name": { "family": "Small", "given": "Todd" } }, { "id": "Szalay-A-S", "name": { "family": "Szalay", "given": "Alex S." } }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted K." } }, { "id": "Yi-Sukyoung-K", "name": { "family": "Yi", "given": "Sukyoung K." } } ] }, "title": "Ongoing Formation of Bulges and Black Holes in the Local Universe: New Insights from GALEX", "ispublished": "pub", "full_text_status": "public", "keywords": "galaxies : active; galaxies : bulges; galaxies : elliptical and lenticular, cD; galaxies : formation", "note": "\u00a9 2007 The American Astronomical Society.\nReceived 2006 July 18; accepted 2006 September 13.\nGALEX (Galaxy Evolution Explorer) is a NASA Small Explorer,\nlaunched in 2003 April. We gratefully acknowledge\nNASA's support for construction, operation, and science analysis\nfor the GALEX mission, developed in cooperation with the Centre\nNational d'Etudes Spatiales (CNES) of France and the Korean\nMinistry of Science and Technology. Funding for the creation\nand distribution of the SDSS Archive has been provided by the\nAlfred P. Sloan Foundation, the Participating Institutions, the\nNational Aeronautics and Space Administration, the National\nScience Foundation, the US Department of Energy, the Japanese\nMonbukagakusho, and the Max Planck Society. The SDSS Web\nsite is http://www.sdss.org. The SDSS is managed by the Astrophysical\nResearch Consortium for the Participating Institutions.\nThe Participating Institutions are the University of Chicago,\nFermilab, the Institute for Advanced Study, the Japan Participation\nGroup, the Johns Hopkins University, the Korean Scientist\nGroup, Los Alamos National Laboratory, the Max Planck\nInstitute for Astronomy, the Max Planck Institute for Astrophysics,\nNew Mexico State University, the University of Pittsburgh,\nthe University of Portsmouth, Princeton University, the US Naval\nObservatory, and the University of Washington.\n\nPublished - KAUapjss07.pdf
", "abstract": "We analyze a volume-limited sample of massive bulge-dominated galaxies with data from both the Sloan Digital Sky Survey and the Galaxy Evolution Explorer (GALEX) satellite. The galaxies have central velocity dispersions greater than 100 km s^(\u22121) and stellar surface mass densities that lie above the value where galaxies transition from actively star-forming to passive systems. The sample is limited to redshifts 0.03 < z < 0.07. At these distances, the SDSS spectra sample the light from the bulge-dominated central regions of the galaxies. The GALEX NUV data provide high sensitivity to low rates of global star formation in these systems. Our sample of bulge-dominated galaxies exhibits a much larger dispersion in NUV \u2212 r color than in optical g \u2212 r color. The dispersion increases for galaxies with smaller central velocity dispersions, and nearly all of the galaxies with bluer NUV \u2212 r colors are active galactic nuclei (AGNs). Both GALEX images and SDSS color profiles demonstrate that the excess UV light is nearly always associated with an extended disk. When comparing fiber-based estimates of stellar age to global ones, we find that galaxies with red outer regions almost never have a young bulge or a strong AGN. Galaxies with blue outer regions have bulges and black holes that span a wide range in age and accretion rate. Galaxies with young bulges and strongly accreting black holes almost always have blue outer disks. The black hole growth rate correlates much more strongly with the age of the stars in the bulge than in the disk. Our suggested scenario is one in which the source of gas that builds the bulge and black hole is a low-mass reservoir of cold gas in the disk. The presence of this gas is a necessary but not sufficient condition for bulge and black hole growth. Some mechanism must transport this gas inward in a time variable way. The disk gas itself is likely to be the result of the accretion of gas from an external source. As the gas in the disk is converted into stars, galaxies will turn red, but further inflow can bring them back into the blue NUV \u2212 r sequence.", "date": "2007-12", "date_type": "published", "publication": "Astrophysical Journal Supplement Series", "volume": "173", "number": "2", "publisher": "American Astronomical Society", "pagerange": "357-376", "id_number": "CaltechAUTHORS:20100205-135117202", "issn": "0067-0049", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20100205-135117202", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "Alfred P. Sloan Foundation" }, { "agency": "Participating Institutions" }, { "agency": "NASA" }, { "agency": "NSF" }, { "agency": "Department of Energy (DOE)" }, { "agency": "Japanese Monbukagakusho" }, { "agency": "Max Planck Society" } ] }, "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" }, { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1086/516647", "primary_object": { "basename": "KAUapjss07.pdf", "url": "https://authors.library.caltech.edu/records/j5awf-89828/files/KAUapjss07.pdf" }, "resource_type": "article", "pub_year": "2007", "author_list": "Kauffmann, Guinevere; Heckman, Timothy M.; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/sw8er-eaf44", "eprint_id": 18044, "eprint_status": "archive", "datestamp": "2023-08-22 10:36:09", "lastmod": "2023-10-20 15:31:55", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Boissier-S", "name": { "family": "Boissier", "given": "Samuel" }, "orcid": "0000-0002-9091-2366" }, { "id": "Gil-de-Paz-A", "name": { "family": "Gil de Paz", "given": "Armando" }, "orcid": "0000-0001-6150-2854" }, { "id": "Boselli-A", "name": { "family": "Boselli", "given": "Alessandro" } }, { "id": "Madore-B-F", "name": { "family": "Madore", "given": "Barry F." }, "orcid": "0000-0002-1576-1676" }, { "id": "Buat-V", "name": { "family": "Buat", "given": "V\u00e9ronique" } }, { "id": "Cortese-L", "name": { "family": "Cortese", "given": "Luca" }, "orcid": "0000-0002-7422-9823" }, { "id": "Burgarella-D", "name": { "family": "Burgarella", "given": "Denis" } }, { "id": "Mu\u0144oz-Mateos-J-C", "name": { "family": "Mu\u0144oz-Mateos", "given": "Juan Carlos" } }, { "id": "Barlow-T-A", "name": { "family": "Barlow", "given": "Tom A." } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Friedman-P-G", "name": { "family": "Friedman", "given": "Peter G." } }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Morrissey-P", "name": { "family": "Morrissey", "given": "Patrick" }, "orcid": "0000-0001-8177-1023" }, { "id": "Neff-S-G", "name": { "family": "Neff", "given": "Susan G." } }, { "id": "Schiminovich-D", "name": { "family": "Schiminovich", "given": "David" } }, { "id": "Seibert-M", "name": { "family": "Seibert", "given": "Mark" }, "orcid": "0000-0002-1143-5515" }, { "id": "Small-T-A", "name": { "family": "Small", "given": "Todd" } }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted K." } }, { "id": "Bianchi-L-C", "name": { "family": "Bianchi", "given": "Luciana" }, "orcid": "0000-0001-7746-5461" }, { "id": "Donas-J", "name": { "family": "Donas", "given": "Jos\u00e9" } }, { "id": "Heckman-T-M", "name": { "family": "Heckman", "given": "Timothy M." } }, { "id": "Lee-Young-Wook", "name": { "family": "Lee", "given": "Young-Wook" } }, { "id": "Milliard-B", "name": { "family": "Milliard", "given": "Bruno" } }, { "id": "Rich-R-M", "name": { "family": "Rich", "given": "R. Michael" }, "orcid": "0000-0003-0427-8387" }, { "id": "Szalay-A-S", "name": { "family": "Szalay", "given": "Alex S." } }, { "id": "Welsh-B-Y", "name": { "family": "Welsh", "given": "Barry Y." } }, { "id": "Yi-Sukyoung-K", "name": { "family": "Yi", "given": "Sukyoung K." } } ] }, "title": "Radial Variation of Attenuation and Star Formation in the Largest Late-Type Disks Observed with GALEX", "ispublished": "pub", "full_text_status": "public", "keywords": "dust, extinction; galaxies: spiral; infrared: galaxies; ultraviolet: galaxies", "note": "\u00a9 2007 American Astronomical Society.\n\nReceived 2006 April 20; accepted 2006 July 28.\n\nGALEX (Galaxy Evolution Explorer) is a NASA Small Explorer,\nlaunched in 2003 April. We gratefully acknowledge NASA's\nsupport for construction, operation, and science analysis for the\nGALEX mission, developed in cooperation with the Centre National\nd'E\u00b4 tudes Spatiales of France and the Korean Ministry of\nScience and Technology. A. G. d. P. is partially financed by the\nSpanish Programa Nacional de Astronom\u0131\u00b4a y Astrof \u0131\u00b4sica under\ngrant AYA2003-01676. We also thank the MAGPOP network\nfor its support, and the referee for very constructive comments.\nFacilities: GALEX\n\nPublished - BOIapjss07.pdf
", "abstract": "For a sample of 43 nearby, late-type galaxies, we have investigated the radial variation of both the current star formation rate and the dust-induced UV light attenuation. To do this we have cross-correlated IRAS images and GALEX observations for each of these galaxies and compiled observations of the gas (CO and H I) and metal-abundance gradients found in the literature. We find that attenuation correlates with metallicity. We then use the UV profiles, corrected for attenuation, to study several variants of the Schmidt law and conclude that our results are compatible with a simple law similar to the one of Kennicutt extending smoothly to lower surface densities, but with considerable scatter. We do not detect an abrupt break in the UV light at the threshold radius derived from H\u03b1 data (at which the H\u03b1 profile shows a break and beyond which only a few H II regions are usually found). We interpret the H\u03b1 sudden break not as a change in the star formation regime (as often suggested), but as the vanishingly small number of ionizing stars corresponding to low levels of star formation.", "date": "2007-12", "date_type": "published", "publication": "Astrophysical Journal Supplement Series", "volume": "173", "number": "2", "publisher": "American Astronomical Society", "pagerange": "524-537", "id_number": "CaltechAUTHORS:20100421-122451071", "issn": "0067-0049", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20100421-122451071", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "Programa Nacional de Astronom\u00eda y Astrof\u00edsica", "grant_number": "AYA2003-01676" } ] }, "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" }, { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1086/516642", "primary_object": { "basename": "BOIapjss07.pdf", "url": "https://authors.library.caltech.edu/records/sw8er-eaf44/files/BOIapjss07.pdf" }, "resource_type": "article", "pub_year": "2007", "author_list": "Boissier, Samuel; Gil de Paz, Armando; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/cnv2r-r7224", "eprint_id": 18086, "eprint_status": "archive", "datestamp": "2023-08-22 10:36:33", "lastmod": "2023-10-20 15:34:27", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Bianchi-L-C", "name": { "family": "Bianchi", "given": "Luciana" }, "orcid": "0000-0001-7746-5461" }, { "id": "Rodriguez-Merino-L", "name": { "family": "Rodriguez-Merino", "given": "Lino" } }, { "id": "Viton-M", "name": { "family": "Viton", "given": "Maurice" } }, { "id": "Laget-M", "name": { "family": "Laget", "given": "Michel" } }, { "id": "Efremova-B-V", "name": { "family": "Efremova", "given": "Boryana" } }, { "id": "Herald-J-E", "name": { "family": "Herald", "given": "James" } }, { "id": "Conti-A", "name": { "family": "Conti", "given": "Alberto" } }, { "id": "Shiao-Bernie", "name": { "family": "Shiao", "given": "Bernie" } }, { "id": "Gil-de-Paz-A", "name": { "family": "Gil de Paz", "given": "Armando" }, "orcid": "0000-0001-6150-2854" }, { "id": "Salim-S", "name": { "family": "Salim", "given": "Samir" }, "orcid": "0000-0003-2342-7501" }, { "id": "Thakar-A-R", "name": { "family": "Thakar", "given": "A." } }, { "id": "Friedman-P-G", "name": { "family": "Friedman", "given": "Peter G." } }, { "id": "Rey-Soo-Chang", "name": { "family": "Rey", "given": "Soo-Chang" } }, { "id": "Thilker-D-A", "name": { "family": "Thilker", "given": "David" }, "orcid": "0000-0002-8528-7340" }, { "id": "Barlow-T-A", "name": { "family": "Barlow", "given": "Tom A." } }, { "id": "Budav\u00e1ri-T", "name": { "family": "Budav\u00e1ri", "given": "Tam\u00e1s" } }, { "id": "Donas-J", "name": { "family": "Donas", "given": "Jos\u00e9" } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Heckman-T-M", "name": { "family": "Heckman", "given": "Timothy M." } }, { "id": "Lee-Young-Wook", "name": { "family": "Lee", "given": "Young-Wook" } }, { "id": "Madore-B-F", "name": { "family": "Madore", "given": "Barry F." }, "orcid": "0000-0002-1576-1676" }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Milliard-B", "name": { "family": "Milliard", "given": "Bruno" } }, { "id": "Morrissey-P", "name": { "family": "Morrissey", "given": "Patrick" }, "orcid": "0000-0001-8177-1023" }, { "id": "Neff-S-G", "name": { "family": "Neff", "given": "Susan G." } }, { "id": "Rich-R-M", "name": { "family": "Rich", "given": "R. Michael" }, "orcid": "0000-0003-0427-8387" }, { "id": "Schiminovich-D", "name": { "family": "Schiminovich", "given": "David" } }, { "id": "Seibert-M", "name": { "family": "Seibert", "given": "Mark" }, "orcid": "0000-0002-1143-5515" }, { "id": "Small-T-A", "name": { "family": "Small", "given": "Todd" } }, { "id": "Szalay-A-S", "name": { "family": "Szalay", "given": "Alex S." } }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted K." } }, { "id": "Welsh-B-Y", "name": { "family": "Welsh", "given": "Barry Y." } }, { "id": "Yi-Sukyoung-K", "name": { "family": "Yi", "given": "Sukyoung K." } } ] }, "title": "Statistical Properties of the GALEX-SDSS Matched Source Catalogs, and Classification of the UV Sources", "ispublished": "pub", "full_text_status": "public", "keywords": "Galaxy: stellar content; quasars: general; stars: statistics; surveys; ultraviolet: stars; white dwarfs", "note": "\u00a9 2007 American Astronomical Society.\n\nReceived 2006 July 21; accepted 2006 October 26.\n\nGALEX (Galaxy Evolution Explorer) is a NASA Small Explorer,\nlaunched in 2003 April. We gratefully acknowledge NASA's\nsupport for construction, operation, and science analysis of\nthe GALEX mission, developed in cooperation with the Centre\nNational d'Etudes Spatiales of France and the Korean Ministry\nof Science and Technology. We are grateful to John Hutchings,\nWei Zheng, and Gordon Richards for discussions about QSO\nissues and clarifications about the QSO SDSS catalogs and templates, to Alessandro Bressan for providing the yet unpublished SSP models and for extremely useful discussions, and (with Olga Vega) for assistance in calculations of the galaxy template, to Paula Szkody and Knox Long for illuminating discussions about CVs and for the CV templates.\nFacilities: GALEX, Sloan\n\nPublished - BIAapjss07.pdf
", "abstract": "We use the Galaxy Evolution Explorer (GALEX) Medium and All-Sky Imaging Survey (MIS and AIS) data from the first public data release (GR1), matched to the Sloan Digital Sky Survey (SDSS) DR3 catalog, to perform source classification. The GALEX surveys provide photometry in far- and near-UV bands and the SDSS in five optical bands (u, g, r, i, z). The GR1/DR3 overlapping areas are 363 (86) deg^2 for the GALEX AIS (MIS), for sources within the 0.5\u00b0 central area of the GALEX fields. Our sample covers mostly |b| > 30\u00b0 Galactic latitudes. We present statistical properties of the GALEX-SDSS matched sources catalog, containing >2 \u00d7 10^6 objects detected in at least one UV band. We classify the matched sources by comparing the seven-band photometry to model colors constructed for different classes of astrophysical objects. For sources with photometric errors <0.3 mag, the corresponding typical AB-magnitude limits are m_(FUV) ~ 21.5, m_(NUV) ~ 22.5 for AIS, and m_(FUV) ~ 24, m_(NUV) ~ 24.5 for MIS. At AIS depth, the number of Galactic and extragalactic objects are comparable, but the latter predominate in the MIS. On the basis of our stellar models, we estimate the GALEX surveys detect hot white dwarfs throughout the Milky Way halo (down to a radius of 0.04 R_\u2609 at MIS depth), providing an unprecedented improvement in the Galactic WD census. Their observed surface density is consistent with Milky Way model predictions. We also select low-redshift QSO candidates, extending the known QSO samples to lower magnitudes, and providing z \u2248 1 candidates for detailed z \u2248 1 follow-up investigations. SDSS optical spectra available for a large subsample confirm the classification for the photometrically selected candidates with 97% purity for single hot stars, \u224845% (AIS) or 31% (MIS) for binaries containing a hot star and a cooler companion, and about 85% for QSOs.", "date": "2007-12", "date_type": "published", "publication": "Astrophysical Journal Supplement Series", "volume": "173", "number": "2", "publisher": "American Astronomical Society", "pagerange": "659-672", "id_number": "CaltechAUTHORS:20100430-103413888", "issn": "0067-0049", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20100430-103413888", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" }, { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1086/516648", "primary_object": { "basename": "BIAapjss07.pdf", "url": "https://authors.library.caltech.edu/records/cnv2r-r7224/files/BIAapjss07.pdf" }, "resource_type": "article", "pub_year": "2007", "author_list": "Bianchi, Luciana; Rodriguez-Merino, Lino; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/ghrgp-29r85", "eprint_id": 16739, "eprint_status": "archive", "datestamp": "2023-08-22 10:34:00", "lastmod": "2023-10-19 22:31:24", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Morrissey-P", "name": { "family": "Morrissey", "given": "Patrick" }, "orcid": "0000-0001-8177-1023" }, { "id": "Conrow-T", "name": { "family": "Conrow", "given": "Tim" } }, { "id": "Barlow-T-A", "name": { "family": "Barlow", "given": "Tom A." } }, { "id": "Small-T", "name": { "family": "Small", "given": "Todd" } }, { "id": "Seibert-M", "name": { "family": "Seibert", "given": "Mark" }, "orcid": "0000-0002-1143-5515" }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted K." } }, { "id": "Budav\u00e1ri-T", "name": { "family": "Budav\u00e1ri", "given": "Tam\u00e1s" } }, { "id": "Arnouts-S", "name": { "family": "Arnouts", "given": "Stephane" } }, { "id": "Friedman-P-G", "name": { "family": "Friedman", "given": "Peter G." } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Neff-S-G", "name": { "family": "Neff", "given": "Susan G." } }, { "id": "Schiminovich-D", "name": { "family": "Schiminovich", "given": "David" } }, { "id": "Bianchi-L", "name": { "family": "Bianchi", "given": "Luciana" } }, { "id": "Donas-J", "name": { "family": "Donas", "given": "Jos\u00e9" } }, { "id": "Heckman-T-M", "name": { "family": "Heckman", "given": "Timothy M." } }, { "id": "Lee-Young-Wook", "name": { "family": "Lee", "given": "Young-Wook" } }, { "id": "Madore-B-F", "name": { "family": "Madore", "given": "Barry F." }, "orcid": "0000-0002-1576-1676" }, { "id": "Milliard-B", "name": { "family": "Milliard", "given": "Bruno" } }, { "id": "Rich-R-M", "name": { "family": "Rich", "given": "R. Michael" }, "orcid": "0000-0003-0427-8387" }, { "id": "Szalay-A-S", "name": { "family": "Szalay", "given": "Alex S." } }, { "id": "Welsh-B-Y", "name": { "family": "Welsh", "given": "Barry Y." } }, { "id": "Yi-Sukyoung-K", "name": { "family": "Yi", "given": "Sukyoung K." } } ] }, "title": "The Calibration and Data Products of GALEX", "ispublished": "pub", "full_text_status": "public", "keywords": "space vehicles; surveys; telescopes; ultraviolet : general", "note": "\u00a9 2007 The American Astronomical Society.\nReceived 2006 December 8; accepted 2007 May 16.\nGALEX (Galaxy Evolution Explorer) is a NASA Small Explorer,\nlaunched in 2003 April. We gratefully acknowledge NASA's\nsupport for construction, operation, and science analysis for the\nGALEX mission, developed in cooperation with the Centre National\nd'Etudes Spatiales of France and the Korean Ministry of\nScience and Technology.\nFacilities: GALEX\n\nPublished - MORapjss07.pdf
", "abstract": "We describe the calibration status and data products pertaining to the GR2 and GR3 data releases of the Galaxy Evolution Explorer (GALEX). These releases have identical pipeline calibrations that are significantly improved over the GR1 data release. GALEX continues to survey the sky in the far-ultraviolet (FUV, ~154 nm) and near-ultraviolet (NUV, ~232 nm) bands, providing simultaneous imaging with a pair of photon-counting, microchannel plate, delay line readout detectors. These 1.25\u00b0 field of view detectors are well suited to ultraviolet observations because of their excellent red rejection and negligible background. A dithered mode of observing and photon list output pose complex requirements on the data processing pipeline, entangling detector calibrations, and aspect reconstruction algorithms. Recent improvements have achieved photometric repeatability of 0.05 and 0.03 m_(AB) in the FUV and NUV, respectively. We have detected a long-term drift of order 1% FUV and 6% NUV over the mission. Astrometric precision is of order 0.5\" rms in both bands. In this paper we provide the GALEX user with a broad overview of the calibration issues likely to be confronted in the current release. Improvements are likely as the GALEX mission continues into an extended phase with a healthy instrument, no consumables, and increased opportunities for guest investigations.", "date": "2007-12", "date_type": "published", "publication": "Astrophysical Journal Supplement Series", "volume": "173", "number": "2", "publisher": "American Astronomical Society", "pagerange": "682-697", "id_number": "CaltechAUTHORS:20091118-092117490", "issn": "0067-0049", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20091118-092117490", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" }, { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1086/520512", "primary_object": { "basename": "MORapjss07.pdf", "url": "https://authors.library.caltech.edu/records/ghrgp-29r85/files/MORapjss07.pdf" }, "resource_type": "article", "pub_year": "2007", "author_list": "Morrissey, Patrick; Conrow, Tim; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/fh896-54351", "eprint_id": 16749, "eprint_status": "archive", "datestamp": "2023-08-22 10:34:05", "lastmod": "2023-10-19 22:31:51", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Welsh-B-Y", "name": { "family": "Welsh", "given": "Barry Y." } }, { "id": "Wheatley-J-M", "name": { "family": "Wheatley", "given": "Jonathan M." } }, { "id": "Seibert-M", "name": { "family": "Seibert", "given": "Mark" }, "orcid": "0000-0002-1143-5515" }, { "id": "Browne-S-E", "name": { "family": "Browne", "given": "Stanley E." } }, { "id": "West-A-A", "name": { "family": "West", "given": "Andrew A." } }, { "id": "Siegmund-O-H-W", "name": { "family": "Siegmund", "given": "Oswald H. W." } }, { "id": "Barlow-T-A", "name": { "family": "Barlow", "given": "Tom A." } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Friedman-P-G", "name": { "family": "Friedman", "given": "Peter G." } }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Morrissey-P", "name": { "family": "Morrissey", "given": "Patrick" }, "orcid": "0000-0001-8177-1023" }, { "id": "Small-T", "name": { "family": "Small", "given": "Todd" } }, { "id": "Wyder-T", "name": { "family": "Wyder", "given": "Ted" } }, { "id": "Schiminovich-D", "name": { "family": "Schiminovich", "given": "David" } } ] }, "title": "The Detection of M Dwarf UV Flare Events in the GALEX Data Archives", "ispublished": "pub", "full_text_status": "public", "keywords": "stars: variables: other; ultraviolet: stars", "note": "\u00a9 2007 American Astronomical Society.\n\nPrint publication: Issue 2 (2007 December); received 2006 March 24; accepted for publication 2006 May 12.\n\nGALEX (Galaxy Evolution Explorer) is a NASA Small Explorer,\nlaunched in 2003April.We gratefully acknowledgeNASA's\nsupport for construction, operation, and science analysis for the\nGALEX mission, developed in cooperation with the Centre National\nd'Etudes Spatiales of France and the Korean Ministry of\nScience and Technology.We acknowledge the dedicated team of\nengineers, technicians, and administrative staff fromJPL/Caltech,\nOrbital Sciences Corporation, University of California, Berkeley,\nLaboratoire d'Astrophysique de Marseille, and the other institutions\nwho made this mission possible. Financial support for this\nresearch was provided by the NASA GALEX Guest Investigator\nscience program. This publicationmakes use of data products from\nthe SIMBAD database, operated at CDS, Strasbourg, France.\nFacilities: GALEX\n\nPublished - WELapjss07.pdf
", "abstract": "We present the preliminary results from implementing a new software tool that enables inspection of time-tagged photon data for the astronomical sources contained within individual GALEX ultraviolet (UV) images of the sky. We have inspected the photon data contained within 1802 GALEX images to reveal rapid, short-term (\u2272500 s) UV source variability in the form of stellar \"flares.\" The mean associated change in near-UV (NUV) magnitude due to this flaring activity is 2.7 \u00b1 0.3 mag. A list of 49 new UV variable star candidates is presented, together with their associated Sloan Digital Sky Survey (SDSS) photometric magnitudes. From these data we can associate the main source of these UV flare events with magnetic activity on M dwarf stars. Photometric parallaxes have been determined for 32 of these sources, placing them at distances ranging from approximately 25 to 1000 pc. The average UV flare energy for these flare events is 2.5 \u00d7 10^(30) ergs, which is of a similar energy to that of U-band, X-ray, and EUV flares observed on many local M dwarf stars. We have found that stars of classes M0 to M5 flare with energies spanning a far larger range and with an energy approximately 5 times greater than those of later (M6 to M8) spectral type.", "date": "2007-12", "date_type": "published", "publication": "Astrophysical Journal Supplement Series", "volume": "173", "number": "2", "publisher": "American Astronomical Society", "pagerange": "673-681", "id_number": "CaltechAUTHORS:20091118-114325154", "issn": "0067-0049", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20091118-114325154", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA" } ] }, "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" }, { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1086/516640", "primary_object": { "basename": "WELapjss07.pdf", "url": "https://authors.library.caltech.edu/records/fh896-54351/files/WELapjss07.pdf" }, "resource_type": "article", "pub_year": "2007", "author_list": "Welsh, Barry Y.; Wheatley, Jonathan M.; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/78ds1-0za93", "eprint_id": 18057, "eprint_status": "archive", "datestamp": "2023-08-22 10:36:20", "lastmod": "2023-10-20 15:32:52", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Hoopes-C-G", "name": { "family": "Hoopes", "given": "Charles G." } }, { "id": "Heckman-T-M", "name": { "family": "Heckman", "given": "Timothy M." } }, { "id": "Salim-S", "name": { "family": "Salim", "given": "Samir" }, "orcid": "0000-0003-2342-7501" }, { "id": "Seibert-M", "name": { "family": "Seibert", "given": "Mark" }, "orcid": "0000-0002-1143-5515" }, { "id": "Tremonti-C-A", "name": { "family": "Tremonti", "given": "Christy A." } }, { "id": "Schiminovich-D", "name": { "family": "Schiminovich", "given": "David" } }, { "id": "Rich-R-M", "name": { "family": "Rich", "given": "R. Michael" }, "orcid": "0000-0003-0427-8387" }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Charlot-S", "name": { "family": "Charlot", "given": "St\u00e9phane" } }, { "id": "Kauffmann-G", "name": { "family": "Kauffmann", "given": "Guinevere" } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Friedman-P-G", "name": { "family": "Friedman", "given": "Peter G." } }, { "id": "Morrissey-P", "name": { "family": "Morrissey", "given": "Patrick" }, "orcid": "0000-0001-8177-1023" }, { "id": "Neff-S-G", "name": { "family": "Neff", "given": "Susan G." } }, { "id": "Small-T-A", "name": { "family": "Small", "given": "Todd" } }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted K." } }, { "id": "Bianchi-L-C", "name": { "family": "Bianchi", "given": "Luciana" }, "orcid": "0000-0001-7746-5461" }, { "id": "Donas-J", "name": { "family": "Donas", "given": "Jos\u00e9" } }, { "id": "Lee-Young-Wook", "name": { "family": "Lee", "given": "Young-Wook" } }, { "id": "Madore-B-F", "name": { "family": "Madore", "given": "Barry F." }, "orcid": "0000-0002-1576-1676" }, { "id": "Milliard-B", "name": { "family": "Milliard", "given": "Bruno" } }, { "id": "Szalay-A-S", "name": { "family": "Szalay", "given": "Alex S." } }, { "id": "Welsh-B-Y", "name": { "family": "Welsh", "given": "Barry Y." } }, { "id": "Yi-Sukyoung-K", "name": { "family": "Yi", "given": "Sukyoung K." } } ] }, "title": "The Diverse Properties of the Most Ultraviolet-Luminous Galaxies Discovered by GALEX", "ispublished": "pub", "full_text_status": "public", "keywords": "galaxies: evolution; galaxies: starburst; ultraviolet: galaxies", "note": "\u00a9 2007 American Astronomical Society.\n\nReceived 2006 June 6; accepted 2006 September 7.\n\nWe thank the referee, Michael Strauss, for providing very\nhelpful comments that greatly improved the paper. GALEX is a\nNASA Small Explorer launched in 2003 April. We gratefully acknowledge NASA's support for construction, operation, and\nscientific analysis for the GALEX mission. Funding for the creation and distribution of the SDSS Archive has been provided by the Alfred P. Sloan Foundation, the participating institutions, the National Aeronautics and Space Administration, the National Science Foundation, the US Department of Energy, the Japanese Monbukagakusho, and the Max Planck Society.\nFacilities: GALEX, Sloan\n\nPublished - HOOapjss07.pdf
", "abstract": "We report on the properties of a sample of ultraviolet-luminous galaxies (UVLGs) selected by matching the Galaxy Evolution Explorer (GALEX) All-Sky Imaging and Medium Imaging Surveys with the Sloan Digital Sky Survey third data release. The overlap between these two surveys is roughly 450 deg^2. Of 25,362 galaxies (with SDSS spectroscopy) in the range 0.0 < z < 0.3 detected by GALEX, there are 215 galaxies with L > 2 \u00d7 10^(10) L_\u2609 at 1530 \u00c5 (observed wavelength). The properties of this population are well correlated with ultraviolet surface brightness. We find that the galaxies with low UV surface brightness are primarily large spiral systems with a mixture of old and young stellar populations, while the high surface brightness galaxies consist primarily of compact starburst systems, with an approximate boundary at a surface brightness of I_(1530) = 10^8 L_\u2609 kpc^(\u22122). The large galaxies appear to be the high-luminosity tail of the galaxy star formation function and owe their large luminosity to their large surface area. In terms of the behavior of surface brightness with luminosity, size with luminosity, the mass-metallicity relation, and other parameters, the compact UVLGs clearly depart from the trends established by the full sample of galaxies. The subset of compact UVLGs with the highest surface brightness (I_(1530) > 10^9 L_\u2609 kpc^(\u22122); \"supercompact UVLGs\") have characteristics that are remarkably similar to Lyman break galaxies at higher redshift. They are much more luminous (and thus have much higher star formation rates) than typical local ultraviolet-bright starburst galaxies and blue compact dwarf galaxies. They have metallicities that are systematically lower than normal galaxies of the same stellar mass, indicating that they are less chemically evolved. In all these respects, they are the best local analogs for Lyman break galaxies.", "date": "2007-12", "date_type": "published", "publication": "Astrophysical Journal Supplement Series", "volume": "173", "number": "2", "publisher": "American Astronomical Society", "pagerange": "441-456", "id_number": "CaltechAUTHORS:20100423-135206576", "issn": "0067-0049", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20100423-135206576", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" }, { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1086/516644", "primary_object": { "basename": "HOOapjss07.pdf", "url": "https://authors.library.caltech.edu/records/78ds1-0za93/files/HOOapjss07.pdf" }, "resource_type": "article", "pub_year": "2007", "author_list": "Hoopes, Charles G.; Heckman, Timothy M.; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/6ghkb-dg080", "eprint_id": 17710, "eprint_status": "archive", "datestamp": "2023-08-22 10:35:44", "lastmod": "2023-10-20 00:10:16", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Schawinski-K", "name": { "family": "Schawinski", "given": "K." }, "orcid": "0000-0001-5464-0888" }, { "id": "Kaviraj-S", "name": { "family": "Kaviraj", "given": "S." } }, { "id": "Khochfar-S", "name": { "family": "Khochfar", "given": "S." } }, { "id": "Yoon-Suk-Jin", "name": { "family": "Yoon", "given": "S.-J." } }, { "id": "Yi-Sukyoung-K", "name": { "family": "Yi", "given": "S. K." } }, { "id": "Deharveng-J-M", "name": { "family": "Deharveng", "given": "J." } }, { "id": "Boselli-A", "name": { "family": "Boselli", "given": "A." } }, { "id": "Barlow-T-A", "name": { "family": "Barlow", "given": "T." } }, { "id": "Conrow-T", "name": { "family": "Conrow", "given": "T." } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "K." }, "orcid": "0000-0001-5800-5531" }, { "id": "Friedman-P-G", "name": { "family": "Friedman", "given": "P. G." } }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. C." }, "orcid": "0000-0002-8650-1644" }, { "id": "Morrissey-P", "name": { "family": "Morrissey", "given": "P." }, "orcid": "0000-0001-8177-1023" }, { "id": "Neff-S-G", "name": { "family": "Neff", "given": "S." } }, { "id": "Schiminovich-D", "name": { "family": "Schiminovich", "given": "D." } }, { "id": "Seibert-M", "name": { "family": "Seibert", "given": "M." }, "orcid": "0000-0002-1143-5515" }, { "id": "Small-T-A", "name": { "family": "Small", "given": "T." } }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "T." } }, { "id": "Bianchi-L-C", "name": { "family": "Bianchi", "given": "L." }, "orcid": "0000-0001-7746-5461" }, { "id": "Donas-J", "name": { "family": "Donas", "given": "J." } }, { "id": "Heckman-T-M", "name": { "family": "Heckman", "given": "T." } }, { "id": "Lee-Young-Wook", "name": { "family": "Lee", "given": "Y.-W." } }, { "id": "Madore-B-F", "name": { "family": "Madore", "given": "B." }, "orcid": "0000-0002-1576-1676" }, { "id": "Milliard-B", "name": { "family": "Milliard", "given": "B." } }, { "id": "Rich-R-M", "name": { "family": "Rich", "given": "R. M." }, "orcid": "0000-0003-0427-8387" }, { "id": "Szalay-A-S", "name": { "family": "Szalay", "given": "A." } } ] }, "title": "The Effect of Environment on the Ultraviolet Color-Magnitude Relation of Early-Type Galaxies", "ispublished": "pub", "full_text_status": "public", "keywords": "galaxies: elliptical and lenticular, cD; galaxies: evolution; galaxies: formation; galaxies: fundamental parameters", "note": "\u00a9 2007 American Astronomical Society.\n\nPrint publication: Issue 2 (2007 December); received 2005 November 2; accepted for publication 2005 December 28.\n\nSpecial thanks are given to M. Bernardi, who kindly supplied\nher early-type galaxy catalog, which provided us with a great insight\non our catalog generation. We warmly thank C. Wolf for making\nthe COMBO-17 S11 field image available to us. We would also\nlike to thank E. Gawiser, L. Miller, S. Rawlings, J. Silk, R. Davies,\nI. Jorgensen, M. Sarzi, J. Magorrian, S. Salim, M. Urry, and\nK. Kotera for helpful comments and discussions.\nGALEX (Galaxy Evolution Explorer) is a NASA Small Explorer,\nlaunched in 2003 April. We gratefully acknowledge NASA's support\nfor construction, operation, and science analysis for the\nGALEX mission, developed in cooperation with the Centre National\nd'Etudes Spatiales of France and the Korean Ministry\nof Science and Technology. This work was supported by grant\nR01-2006-000-10716-0 from the Basic Research Program of the\nKOSEF and Yonsei University Research Fund to the corresponding\nauthor (S. K. Yi).\n\nPublished - SCHAapjss07.pdf
", "abstract": "We use GALEX near-UV (NUV) photometry of a sample of early-type galaxies selected in the SDSS (Sloan Digital Sky Survey) to study the UV color-magnitude relation (CMR). NUV \u2212 r color is an excellent tracer of even small amounts (~1% mass fraction) of recent (\u22721 Gyr) star formation, and so the NUV \u2212 r CMR allows us to study the effect of environment on the recent star formation history. We analyze a volume-limited sample of 839 visually inspected early-type galaxies in the redshift range 0.05 < z < 0.10 brighter than M_r of \u201321.5 with any possible emission-line or radio-selected active galactic nuclei (AGNs) removed to avoid contamination. We find that contamination by AGN candidates and late-type interlopers highly bias any study of recent star formation in early-type galaxies and that, after removing those, our lower limit to the fraction of massive early-type galaxies showing signs of recent star formation is roughly 30% \u00b1 3% . This suggests that residual star formation is common even among the present day early-type galaxy population. We find that the fraction of UV-bright early-type galaxies is 25% higher in low-density environments. However, the density effect is clear only in the lowest density bin. The blue galaxy fraction for the subsample of the brightest early-type galaxies, however, shows a very strong density dependence, in the sense that the blue galaxy fraction is lower in a higher density region.", "date": "2007-12", "date_type": "published", "publication": "Astrophysical Journal Supplement Series", "volume": "173", "number": "2", "publisher": "American Astronomical Society", "pagerange": "512-523", "id_number": "CaltechAUTHORS:20100309-143017549", "issn": "0067-0049", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20100309-143017549", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "Korea Science and Engineering Foundation", "grant_number": "R01-2006-000-10716-0" }, { "agency": "Yonsei University" } ] }, "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" }, { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1086/516631", "primary_object": { "basename": "SCHAapjss07.pdf", "url": "https://authors.library.caltech.edu/records/6ghkb-dg080/files/SCHAapjss07.pdf" }, "resource_type": "article", "pub_year": "2007", "author_list": "Schawinski, K.; Kaviraj, S.; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/bzn8v-vpc70", "eprint_id": 17465, "eprint_status": "archive", "datestamp": "2023-08-22 10:34:58", "lastmod": "2023-10-19 23:55:03", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Gil-de-Paz-A", "name": { "family": "Gil de Paz", "given": "Armando" }, "orcid": "0000-0001-6150-2854" }, { "id": "Boissier-S", "name": { "family": "Boissier", "given": "Samuel" }, "orcid": "0000-0002-9091-2366" }, { "id": "Madore-B-F", "name": { "family": "Madore", "given": "Barry F." }, "orcid": "0000-0002-1576-1676" }, { "id": "Seibert-M", "name": { "family": "Seibert", "given": "Mark" }, "orcid": "0000-0002-1143-5515" }, { "id": "Joe-Young-H", "name": { "family": "Joe", "given": "Young H." } }, { "id": "Boselli-A", "name": { "family": "Boselli", "given": "Alessandro" } }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted K." } }, { "id": "Thilker-D-A", "name": { "family": "Thilker", "given": "David" }, "orcid": "0000-0002-8528-7340" }, { "id": "Bianchi-L", "name": { "family": "Bianchi", "given": "Luciana" } }, { "id": "Rey-Soo-Chang", "name": { "family": "Rey", "given": "Soo-Chang" } }, { "id": "Rich-R-M", "name": { "family": "Rich", "given": "R. Michael" }, "orcid": "0000-0003-0427-8387" }, { "id": "Barlow-T-A", "name": { "family": "Barlow", "given": "Tom A." } }, { "id": "Conrow-T", "name": { "family": "Conrow", "given": "Tim" } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Friedman-P-G", "name": { "family": "Friedman", "given": "Peter G." } }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Morrissey-P", "name": { "family": "Morrissey", "given": "Patrick" }, "orcid": "0000-0001-8177-1023" }, { "id": "Neff-S-G", "name": { "family": "Neff", "given": "Susan G." } }, { "id": "Schiminovich-D", "name": { "family": "Schiminovich", "given": "David" } }, { "id": "Small-T", "name": { "family": "Small", "given": "Todd" } }, { "id": "Donas-J", "name": { "family": "Donas", "given": "Jos\u00e9" } }, { "id": "Heckman-T-M", "name": { "family": "Heckman", "given": "Timothy M." } }, { "id": "Lee-Young-Wook", "name": { "family": "Lee", "given": "Young-Wook" } }, { "id": "Milliard-B", "name": { "family": "Milliard", "given": "Bruno" } }, { "id": "Szalay-A-S", "name": { "family": "Szalay", "given": "Alex S." } }, { "id": "Yi-Sukyoung-K", "name": { "family": "Yi", "given": "Sukyoung" } } ] }, "title": "The GALEX Ultraviolet Atlas of Nearby Galaxies", "ispublished": "pub", "full_text_status": "public", "keywords": "atlases; galaxies : evolution; galaxies : fundamental parameters; galaxies : photometry; ultraviolet : galaxies", "note": "\u00a9 2007 The American Astronomical Society\nReceived 2006 January 6; accepted 2006 March 15.\nGALEX (Galaxy Evolution Explorer) is a NASA Small Explorer,\nlaunched in 2003 April. We gratefully acknowledge NASA's\nsupport for construction, operation, and science analysis for the\nGALEX mission, developed in cooperation with the Centre National\nd'Etudes Spatiales of France and the Korean Ministry of\nScience and Technology. A. G. d. P. is partially financed by the\nMAGPOP EU Marie Curie Research Training Network and the\nSpanish Programa Nacional de Astronom\u0131\u00b4a y Astrof\u0131\u00b4sica under\ngrant AYA2003-01676. We thank Cren Frayer and Olga Pevunova\nfor preparing the online version of the Atlas. We are also thankful to\nthe referee for his/her valuable comments which helped to improve\nthe paper.\nFacilities: GALEX.\n\nPublished - PAZapjss07.pdf
", "abstract": "We present images, integrated photometry, and surface-brightness and color profiles for a total of 1034 nearby galaxies recently observed by the Galaxy Evolution Explorer (GALEX) satellite in its far-ultraviolet (FUV; \u03bb_(eff) = 1516 \u00c5) and near-ultraviolet (NUV; \u03bb_(eff) = 2267 \u00c5) bands. Our catalog of objects is derived primarily from the GALEX Nearby Galaxies Survey (NGS) supplemented by galaxies larger than 1' in diameter serendipitously found in these fields and in other GALEX exposures of similar of greater depth. The sample analyzed here adequately describes the distribution and full range of properties (luminosity, color, star formation rate [SFR]) of galaxies in the local universe. From the surface brightness profiles obtained we have computed asymptotic magnitudes, colors, and luminosities, along with the concentration indices C31 and C42. We have also morphologically classified the UV surface brightness profiles according to their shape. This data set has been complemented with archival optical, near-infrared, and far-infrared fluxes and colors. We find that the integrated (FUV \u2212 K) color provides robust discrimination between elliptical and spiral/irregular galaxies and also among spiral galaxies of different subtypes. Elliptical galaxies with brighter K-band luminosities (i.e., more massive) are redder in (NUV \u2212 K) color but bluer in (FUV \u2212 NUV) (a color sensitive to the presence of a strong UV upturn) than less massive ellipticals. In the case of the spiral/irregular galaxies our analysis shows the presence of a relatively tight correlation between the (FUV \u2212 NUV) color (or, equivalently, the slope of the UV spectrum, \u03b2) and the total infrared-to-UV ratio. The correlation found between (FUV \u2212 NUV) color and K-band luminosity (with lower luminosity objects being bluer than more luminous ones) can be explained as due to an increase in the dust content with galaxy luminosity. The images in this Atlas along with the profiles and integrated properties are publicly available through a dedicated Web page.", "date": "2007-12", "date_type": "published", "publication": "Astrophysical Journal Supplement Series", "volume": "173", "number": "2", "publisher": "American Astronomical Society", "pagerange": "185-255", "id_number": "CaltechAUTHORS:20100212-095356894", "issn": "0067-0049", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20100212-095356894", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "Marie Curie Fellowship" }, { "agency": "Programa Nacional de Astronom\u0131a y Astrof\u0131sica", "grant_number": "AYA2003-01676" } ] }, "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" }, { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1086/516636", "primary_object": { "basename": "PAZapjss07.pdf", "url": "https://authors.library.caltech.edu/records/bzn8v-vpc70/files/PAZapjss07.pdf" }, "resource_type": "article", "pub_year": "2007", "author_list": "Gil de Paz, Armando; Boissier, Samuel; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/gg4zj-k9291", "eprint_id": 18060, "eprint_status": "archive", "datestamp": "2023-08-22 10:36:25", "lastmod": "2023-10-20 15:33:02", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Buat-V", "name": { "family": "Buat", "given": "V." } }, { "id": "Takeuchi-Tsutomu-T", "name": { "family": "Takeuchi", "given": "T. T." } }, { "id": "Iglesias-P\u00e1ramo-J", "name": { "family": "Iglesias-P\u00e1ramo", "given": "J." } }, { "id": "Xu-C-Kevin", "name": { "family": "Xu", "given": "C. K." }, "orcid": "0000-0002-1588-6700" }, { "id": "Burgarella-D", "name": { "family": "Burgarella", "given": "D." } }, { "id": "Boselli-A", "name": { "family": "Boselli", "given": "A." } }, { "id": "Barlow-T-A", "name": { "family": "Barlow", "given": "T." } }, { "id": "Bianchi-L", "name": { "family": "Bianchi", "given": "L." } }, { "id": "Donas-J", "name": { "family": "Donas", "given": "J." } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "K." }, "orcid": "0000-0001-5800-5531" }, { "id": "Friedman-P-G", "name": { "family": "Friedman", "given": "P. G." } }, { "id": "Heckman-T-M", "name": { "family": "Heckman", "given": "T. M." } }, { "id": "Lee-Young-Wook", "name": { "family": "Lee", "given": "Y.-W." } }, { "id": "Madore-B-F", "name": { "family": "Madore", "given": "B. F." }, "orcid": "0000-0002-1576-1676" }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. C." }, "orcid": "0000-0002-8650-1644" }, { "id": "Milliard-B", "name": { "family": "Milliard", "given": "B." } }, { "id": "Morrissey-P", "name": { "family": "Morrissey", "given": "P." }, "orcid": "0000-0001-8177-1023" }, { "id": "Neff-S-G", "name": { "family": "Neff", "given": "S." } }, { "id": "Rich-M", "name": { "family": "Rich", "given": "M." } }, { "id": "Schiminovich-D", "name": { "family": "Schiminovich", "given": "D." } }, { "id": "Seibert-M", "name": { "family": "Seibert", "given": "M." }, "orcid": "0000-0002-1143-5515" }, { "id": "Small-T", "name": { "family": "Small", "given": "T." } }, { "id": "Szalay-A-S", "name": { "family": "Szalay", "given": "A. S." } }, { "id": "Welsh-B-Y", "name": { "family": "Welsh", "given": "B." } }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "T." } }, { "id": "Yi-Sukyoung-K", "name": { "family": "Yi", "given": "S. K." } } ] }, "title": "The Local Universe as Seen in the Far-Infrared and Far-Ultraviolet: A Global Point of View of the Local Recent Star Formation", "ispublished": "pub", "full_text_status": "public", "keywords": "dust, extinction; galaxies: photometry; galaxies: stellar content; infrared: galaxies; ultraviolet: galaxies", "note": "\u00a9 2007 American Astronomical Society.\n\nReceived 2006 June 9; accepted 2006 September 25.\n\nWe thank the anonymous referee for her/ his very useful and\nextensive comments. GALEX (the Galaxy Evolution Explorer) is\na NASA Small Explorer, launched in 2003 April. We gratefully\nacknowledge NASA's support for the construction, operation,\nand scientific analysis for the GALEX mission, developed in cooperation\nwith the Centre National d'Etudes Spatiales of France\nand the Korean Ministry of Science and Technology.V. B., D. B.,\nand J. I.-P. gratefully acknowledge CNES and ''Programme National\nGalaxie'' support for the scientific analysis for the GALEX\nmission. T. T. T. has been supported by a Japan Society for the\nPromotion of Science Fellowship for Research Abroad for the\nearly phase of this project, and later by the 21st Century Center\nof Excellence Program ''Exploring New Science by Bridging\nParticle-Matter Hierarchy'' at Tohoku University. This research\nhas made use of the NASA/IPAC Extragalactic Database, which\nis operated by the Jet Propulsion Laboratory/California Institute\nof Technology, under contract with the National Aeronautics and Space Administration. We also acknowledge the usage of the HyperLeda database (http://leda.univ-lyon1.fr).\n\nPublished - BUAapjss07.pdf
", "abstract": "We select far-infrared (FIR: 60 \u03bcm) and far-ultraviolet (FUV: 530 \u00c5) samples of nearby galaxies in order to discuss the biases encountered by monochromatic surveys (FIR or FUV). Very different volumes are sampled by each selection, and much care is taken to apply volume corrections to all the analyses. The distributions of the bolometric luminosity of young stars are compared for both samples: they are found to be consistent with each other for galaxies of intermediate luminosities, but some differences are found for high (>5 \u00d7 10^(10) L_\u2609) luminosities. The shallowness of the IRAS survey prevents us from securing a comparison at low luminosities (<2 \u00d7 10^9 L_\u2609). The ratio of the total infrared (TIR) luminosity to the FUV luminosity is found to increase with the bolometric luminosity in a similar way for both samples up to 5 \u00d7 10^(10) L_\u2609. Brighter galaxies are found to have a different behavior according to their selection: the L_(TIR)/L_(FUV) ratio of the FUV-selected galaxies brighter than 5 \u00d7 10^(10) L_\u2609 reaches a plateau, whereas L_(TIR)/L_(FUV) continues to increase with the luminosity of bright galaxies selected in FIR. The volume-averaged specific star formation rate (SFR per unit galaxy stellar mass, SSFR) is found to decrease toward massive galaxies within each selection. The mean values of the SSFR are found to be larger than those measured for optical and NIR-selected samples over the whole mass range for the FIR selection, and for masses larger than 10^(10) M_\u2609 for the FUV selection. Luminous and massive galaxies selected in FIR appear as active as galaxies with similar characteristics detected at z ~ 0.7.", "date": "2007-12", "date_type": "published", "publication": "Astrophysical Journal Supplement Series", "volume": "173", "number": "2", "publisher": "American Astronomical Society", "pagerange": "404-414", "id_number": "CaltechAUTHORS:20100423-135341806", "issn": "0067-0049", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20100423-135341806", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "Japan Society for the Promotion of Science" }, { "agency": "Tohoku University" }, { "agency": "NASA/JPL/Caltech" } ] }, "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" }, { "id": "Space-Astrophysics-Laboratory" }, { "id": "Infrared-Processing-and-Analysis-Center-(IPAC)" } ] }, "doi": "10.1086/516645", "primary_object": { "basename": "BUAapjss07.pdf", "url": "https://authors.library.caltech.edu/records/gg4zj-k9291/files/BUAapjss07.pdf" }, "resource_type": "article", "pub_year": "2007", "author_list": "Buat, V.; Takeuchi, T. T.; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/nrj8f-m0023", "eprint_id": 17735, "eprint_status": "archive", "datestamp": "2023-08-22 10:35:54", "lastmod": "2023-10-20 00:11:29", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Ree-Chang-H", "name": { "family": "Ree", "given": "Chang H." } }, { "id": "Lee-Young-Wook", "name": { "family": "Lee", "given": "Young-Wook" } }, { "id": "Yi-Sukyoung-K", "name": { "family": "Yi", "given": "Sukyoung K." } }, { "id": "Yoon-Suk-Jin", "name": { "family": "Yoon", "given": "Suk-Jin" } }, { "id": "Rich-R-M", "name": { "family": "Rich", "given": "R. Michael" }, "orcid": "0000-0003-0427-8387" }, { "id": "Deharveng-J-M", "name": { "family": "Deharveng", "given": "Jean-Michel" } }, { "id": "Sohn-Young-Jong", "name": { "family": "Sohn", "given": "Young-Jong" } }, { "id": "Kaviraj-Sugata", "name": { "family": "Kaviraj", "given": "Sugata" } }, { "id": "Rhee-Jonghwan", "name": { "family": "Rhee", "given": "Jonghwan" } }, { "id": "Sheen-Yun-Kyeong", "name": { "family": "Sheen", "given": "Yun-Kyeong" } }, { "id": "Schawinski-K", "name": { "family": "Schawinski", "given": "Kevin" }, "orcid": "0000-0001-5464-0888" }, { "id": "Rey-Soo-Chang", "name": { "family": "Rey", "given": "Soo-Chang" } }, { "id": "Boselli-A", "name": { "family": "Boselli", "given": "Alessandro" } }, { "id": "Rhee-Jaehyon", "name": { "family": "Rhee", "given": "Jaehyon" } }, { "id": "Donas-J", "name": { "family": "Donas", "given": "Jos\u00e9" } }, { "id": "Seibert-M", "name": { "family": "Seibert", "given": "Mark" }, "orcid": "0000-0002-1143-5515" }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted K." } }, { "id": "Barlow-T-A", "name": { "family": "Barlow", "given": "Tom A." } }, { "id": "Bianchi-L-C", "name": { "family": "Bianchi", "given": "Luciana" }, "orcid": "0000-0001-7746-5461" }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Friedman-P-G", "name": { "family": "Friedman", "given": "Peter G." } }, { "id": "Heckman-T-M", "name": { "family": "Heckman", "given": "Timothy M." } }, { "id": "Madore-B-F", "name": { "family": "Madore", "given": "Barry F." }, "orcid": "0000-0002-1576-1676" }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Milliard-B", "name": { "family": "Milliard", "given": "Bruno" } }, { "id": "Morrissey-P", "name": { "family": "Morrissey", "given": "Patrick" }, "orcid": "0000-0001-8177-1023" }, { "id": "Neff-S-G", "name": { "family": "Neff", "given": "Susan G." } }, { "id": "Schiminovich-D", "name": { "family": "Schiminovich", "given": "David" } }, { "id": "Small-T-A", "name": { "family": "Small", "given": "Todd" } }, { "id": "Szalay-A-S", "name": { "family": "Szalay", "given": "Alex S." } }, { "id": "Welsh-B-Y", "name": { "family": "Welsh", "given": "Barry Y." } } ] }, "title": "The Look-back Time Evolution of Far-Ultraviolet Flux from the Brightest Cluster Elliptical Galaxies at z < 0.2", "ispublished": "pub", "full_text_status": "public", "keywords": "galaxies: elliptical and lenticular, cD; galaxies: evolution; galaxies: stellar content; ultraviolet: galaxies", "note": "\u00a9 2007 American Astronomical Society.\n\nPrint publication: Issue 2 (2007 December); received 2006 September 14; accepted for publication 2007 March 15.\n\nGALEX (Galaxy Evolution Explorer) is a NASA Small Explorer,\nlaunched in 2003 April. We gratefully acknowledge\nNASA's support for construction, operation, and science analysis\nfor the GALEX mission, developed in cooperation with the Centre\nNational d'Etudes Spatiales of France and the Korean Ministry of\nScience and Technology. Yonsei University participation was supported\nby the Creative Research Initiative Program of MOST/KOSEF. We are grateful to Marc Sarzi for providing his spectral\nfitting code, adapted for use on SDSS spectra. S. K. Y. acknowledges\nsupport by grant R01-2006-000-10716-0 from the\nBasic Research Program of the Korea Science and Engineering\nFoundation.\n\nPublished - REEapjss07.pdf
", "abstract": "We present the GALEX UV photometry of the elliptical galaxies in Abell clusters at moderate redshifts (z < 0.2) for the study of the look-back time evolution of the UV upturn phenomenon. The brightest elliptical galaxies (M_r \u2272 \u221222) in 12 remote clusters are compared with the nearby giant elliptical galaxies of comparable optical luminosity in the Fornax and Virgo clusters. The sample galaxies presented here appear to be quiescent without signs of massive star formation or strong nuclear activity and show smooth, extended profiles in their UV images, indicating that the far-UV (FUV) light is mostly produced by hot stars in the underlying old stellar population. Compared to their counterparts in nearby clusters, the FUV flux of cluster giant elliptical galaxies at moderate redshifts fades rapidly with ~2 Gyr of look-back time, and the observed pace in FUV \u2212 V color evolution agrees reasonably well with the prediction from the population synthesis models where the dominant FUV source is hot horizontal-branch stars and their progeny. A similar amount of color spread (~1 mag) in FUV \u2212 V exists among the brightest cluster elliptical galaxies at z ~ 0.1, as observed among the nearby giant elliptical galaxies of comparable optical luminosity.", "date": "2007-12", "date_type": "published", "publication": "Astrophysical Journal Supplement Series", "volume": "173", "number": "2", "publisher": "American Astronomical Society", "pagerange": "607-618", "id_number": "CaltechAUTHORS:20100315-113445648", "issn": "0067-0049", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20100315-113445648", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA" }, { "agency": "Centre National d'\u00c9tudes Spatiales (CNES)" }, { "agency": "Ministry of Science and Technology (Korea)" }, { "agency": "Korea Science and Engineering Foundation", "grant_number": "R01-2006-000-10716-0" } ] }, "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" }, { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1086/518125", "primary_object": { "basename": "REEapjss07.pdf", "url": "https://authors.library.caltech.edu/records/nrj8f-m0023/files/REEapjss07.pdf" }, "resource_type": "article", "pub_year": "2007", "author_list": "Ree, Chang H.; Lee, Young-Wook; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/c1v2e-b7t06", "eprint_id": 18042, "eprint_status": "archive", "datestamp": "2023-08-22 10:36:04", "lastmod": "2023-10-20 15:31:48", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Small-T-A", "name": { "family": "Small", "given": "Todd" } }, { "id": "Schiminovich-D", "name": { "family": "Schiminovich", "given": "David" } }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted K." } }, { "id": "P\u00e9rez-Gonz\u00e1lez-P-G", "name": { "family": "P\u00e9rez-Gonz\u00e1lez", "given": "Pablo G." }, "orcid": "0000-0003-4528-5639" }, { "id": "Johnson-B-D", "name": { "family": "Johnson", "given": "Benjamin" } }, { "id": "Wolf-C", "name": { "family": "Wolf", "given": "Christian" }, "orcid": "0000-0002-4569-016X" }, { "id": "Barlow-T-A", "name": { "family": "Barlow", "given": "Tom A." } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Friedman-P-G", "name": { "family": "Friedman", "given": "Peter G." } }, { "id": "Morrissey-P", "name": { "family": "Morrissey", "given": "Patrick" }, "orcid": "0000-0001-8177-1023" }, { "id": "Neff-S-G", "name": { "family": "Neff", "given": "Susan G." } }, { "id": "Seibert-M", "name": { "family": "Seibert", "given": "Mark" }, "orcid": "0000-0002-1143-5515" }, { "id": "Welsh-B-Y", "name": { "family": "Welsh", "given": "Barry Y." } }, { "id": "Bianchi-L-C", "name": { "family": "Bianchi", "given": "Luciana" }, "orcid": "0000-0001-7746-5461" }, { "id": "Donas-J", "name": { "family": "Donas", "given": "Jos\u00e9" } }, { "id": "Heckman-T-M", "name": { "family": "Heckman", "given": "Timothy M." } }, { "id": "Lee-Young-Wook", "name": { "family": "Lee", "given": "Young-Wook" } }, { "id": "Madore-B-F", "name": { "family": "Madore", "given": "Barry F." }, "orcid": "0000-0002-1576-1676" }, { "id": "Milliard-B", "name": { "family": "Milliard", "given": "Bruno" } }, { "id": "Rich-R-M", "name": { "family": "Rich", "given": "R. Michael" }, "orcid": "0000-0003-0427-8387" }, { "id": "Szalay-A-S", "name": { "family": "Szalay", "given": "Alex S." } }, { "id": "Yi-Sukyoung-K", "name": { "family": "Yi", "given": "Sukyoung K." } }, { "id": "Meisenheimer-K", "name": { "family": "Meisenheimer", "given": "Klaus" } }, { "id": "Rieke-G-H", "name": { "family": "Rieke", "given": "George" }, "orcid": "0000-0003-2303-6519" } ] }, "title": "The Star Formation and Extinction Coevolution of UV-Selected Galaxies over 0.05 < z < 1.2", "ispublished": "pub", "full_text_status": "public", "keywords": "galaxies: evolution; ultraviolet: galaxies", "note": "\u00a9 2007 American Astronomical Society.\n\nReceived 2007 January 21; accepted 2007 July 27.\n\nGALEX (Galaxy Evolution Explorer) is a NASA Small Explorer,\nlaunched in 2003 April. We gratefully acknowledge NASA's\nsupport for construction, operation, and science analysis for the\nGALEX mission, developed in cooperation with the Centre National\nd'Etudes Spatiales of France and the Korean Ministry of\nScience and Technology.\nFacilities: GALEX, Sloan\n\nPublished - MARapjss07b.pdf
", "abstract": "We use a new stacking technique to obtain mean mid-IR and far-IR to far-UV flux ratios over the rest-frame near-UV, near-IR color-magnitude diagram. We employ COMBO-17 redshifts and COMBO-17 optical, GALEX far- and near-UV, and Spitzer IRAC and MIPS mid-IR photometry. This technique permits us to probe the infrared excess (IRX), the ratio of far-IR to far-UV luminosity, and the specific star formation rate (SSFR) and their coevolution over 2 orders of magnitude of stellar mass and over redshift 0.1 < z < 1.2. We find that the SSFR and the characteristic mass (M_0) above which the SSFR drops increase with redshift (downsizing). At any given epoch, the IRX is an increasing function of mass up to M_0. Above this mass the IRX falls, suggesting gas exhaustion. In a given mass bin below M_0, the IRX increases with time in a fashion consistent with enrichment. We interpret these trends using a simple model with a Schmidt-Kennicutt law and extinction that tracks gas density and enrichment. We find that the average IRX and SSFR follow a galaxy age parameter \u03be, which is determined mainly by the galaxy mass and time since formation. We conclude that blue-sequence galaxies have properties which show simple, systematic trends with mass and time such as the steady buildup of heavy elements in the interstellar media of evolving galaxies and the exhaustion of gas in galaxies that are evolving off the blue sequence. The IRX represents a tool for selecting galaxies at various stages of evolution.", "date": "2007-12", "date_type": "published", "publication": "Astrophysical Journal Supplement Series", "volume": "173", "number": "2", "publisher": "American Astronomical Society", "pagerange": "415-431", "id_number": "CaltechAUTHORS:20100421-122354466", "issn": "0067-0049", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20100421-122354466", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" }, { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1086/522088", "primary_object": { "basename": "MARapjss07b.pdf", "url": "https://authors.library.caltech.edu/records/c1v2e-b7t06/files/MARapjss07b.pdf" }, "resource_type": "article", "pub_year": "2007", "author_list": "Martin, D. Christopher; Small, Todd; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/nw3kf-sn393", "eprint_id": 17546, "eprint_status": "archive", "datestamp": "2023-08-22 10:35:18", "lastmod": "2023-10-19 23:59:29", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Schiminovich-D", "name": { "family": "Schiminovich", "given": "David" } }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted K." } }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Johnson-B-D", "name": { "family": "Johnson", "given": "Benjamin D." } }, { "id": "Salim-S", "name": { "family": "Salim", "given": "Samir" }, "orcid": "0000-0003-2342-7501" }, { "id": "Seibert-M", "name": { "family": "Seibert", "given": "Mark" }, "orcid": "0000-0002-1143-5515" }, { "id": "Treyer-M-A", "name": { "family": "Treyer", "given": "Marie A." } }, { "id": "Budav\u00e1ri-T", "name": { "family": "Budav\u00e1ri", "given": "Tam\u00e1s" } }, { "id": "Hoopes-C-G", "name": { "family": "Hoopes", "given": "Charles" } }, { "id": "Zamojski-M-A", "name": { "family": "Zamojski", "given": "Michel" } }, { "id": "Barlow-T-A", "name": { "family": "Barlow", "given": "Tom A." } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Friedman-P-G", "name": { "family": "Friedman", "given": "Peter G." } }, { "id": "Morrissey-P", "name": { "family": "Morrissey", "given": "Patrick" }, "orcid": "0000-0001-8177-1023" }, { "id": "Neff-S-G", "name": { "family": "Neff", "given": "Susan G." } }, { "id": "Small-T-A", "name": { "family": "Small", "given": "Todd A." } }, { "id": "Bianchi-L-C", "name": { "family": "Bianchi", "given": "Luciana" }, "orcid": "0000-0001-7746-5461" }, { "id": "Donas-J", "name": { "family": "Donas", "given": "Jos\u00e9" } }, { "id": "Heckman-T-M", "name": { "family": "Heckman", "given": "Timothy M." } }, { "id": "Lee-Young-Wook", "name": { "family": "Lee", "given": "Young-Wook" } }, { "id": "Madore-B-F", "name": { "family": "Madore", "given": "Barry F." }, "orcid": "0000-0002-1576-1676" }, { "id": "Milliard-B", "name": { "family": "Milliard", "given": "Bruno" } }, { "id": "Rich-R-M", "name": { "family": "Rich", "given": "R. Michael" }, "orcid": "0000-0003-0427-8387" }, { "id": "Szalay-A-S", "name": { "family": "Szalay", "given": "Alex. S." } }, { "id": "Welsh-B-Y", "name": { "family": "Welsh", "given": "Barry Y." } }, { "id": "Yi-Sukyoung-K", "name": { "family": "Yi", "given": "Sukyoung" } } ] }, "title": "The UV-Optical Color Magnitude Diagram. II. Physical Properties and Morphological Evolution On and Off of a Star-forming Sequence", "ispublished": "pub", "full_text_status": "public", "keywords": "galaxies: evolution; galaxies: formation; surveys; ultraviolet: galaxies", "note": "\u00a9 2007 American Astronomical Society.\n\nPrint publication: Issue 2 (2007 December); received 2007 August 2; accepted for publication 2007 October 16.\n\nD. S. gratefully acknowledges discussions with Eric Bell and\nMichael Blanton and the hospitality of the Max Planck Institut fu\u00a8r Astronomie in Heidelberg and the Aspen Center for Physics. This work has made extensive use of the idlutils, kcorrect, and Goddard IDL libraries, as well as the MPA/JHU and the\nNYU SDSS value-added catalogs. GALEX (Galaxy Evolution\nExplorer) is a NASA Small Explorer, launched in April 2003.\nWe gratefully acknowledge NASA's support for the construction, operation, and science analysis for the GALEX mission, developed in cooperation with the Centre National d'Etudes Spatiales of France and the Korean Ministry of Science and Technology.\nFacilities: GALEX\n\nPublished - SCHIapjss07b.pdf
", "abstract": "We use the UV-optical color magnitude diagram in combination with spectroscopic and photometric measurements derived from the SDSS spectroscopic sample to measure the distribution of galaxies in the local universe (z < 0.25) and their physical properties as a function of specific star formation rate (SFR/M_*) and stellar mass (M_*). Throughout this study our emphasis is on the properties of galaxies on and off of a local \"star-forming sequence.\" We discuss how the physical characteristics of galaxies along this sequence are related to scaling relations typically derived for galaxies of different morphological types. We find, among other trends, that our measure of the star formation rate surface density, \u03a3_(SFR), is nearly constant along this sequence. We discuss this result and implications for galaxies at higher redshift. For the first time, we report on measurements of the local UV luminosity function versus galaxy structural parameters, as well as inclination. We also split our sample into disk-dominated and bulge-dominated subsamples using the i-band Sersic index and find that disk-dominated galaxies occupy a very tight locus in SFR/M_* vs. M_* space, while bulge-dominated galaxies display a much larger spread of SFR/M_* at fixed stellar mass. A significant fraction of galaxies with SFR/M_* and \u03a3_(SFR) above those on the \"star-forming sequence\" are bulge-dominated. We can use our derived distribution functions to ask whether a significant fraction of these galaxies may be experiencing a final episode of star formation (possibly induced by a merger or other burst), soon to be quenched, by determining whether this population can explain the growth rate of the non-star-forming galaxies on the \"red sequence.\" We find that this is a plausible scenario for bulge-dominated galaxies near the characteristic transition mass under reasonable assumptions regarding quenching timescales. Similarly, we use this technique to estimate the rate of mergers/starbursts that take galaxies off of the star-forming sequence and show that the implied merger rates are consistent with local measurements.", "date": "2007-12", "date_type": "published", "publication": "Astrophysical Journal Supplement Series", "volume": "173", "number": "2", "publisher": "American Astronomical Society", "pagerange": "315-341", "id_number": "CaltechAUTHORS:20100222-095205221", "issn": "0067-0049", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20100222-095205221", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "local_group": { "items": [ { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1086/524659", "primary_object": { "basename": "SCHIapjss07b.pdf", "url": "https://authors.library.caltech.edu/records/nw3kf-sn393/files/SCHIapjss07b.pdf" }, "resource_type": "article", "pub_year": "2007", "author_list": "Schiminovich, David; Wyder, Ted K.; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/n4fsm-t4108", "eprint_id": 16731, "eprint_status": "archive", "datestamp": "2023-08-22 10:33:55", "lastmod": "2023-10-19 22:31:04", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted K." } }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Schiminovich-D", "name": { "family": "Schiminovich", "given": "David" } }, { "id": "Seibert-M", "name": { "family": "Seibert", "given": "Mark" }, "orcid": "0000-0002-1143-5515" }, { "id": "Budav\u00e1ri-T", "name": { "family": "Budav\u00e1ri", "given": "Tam\u00e1s" } }, { "id": "Treyer-M-A", "name": { "family": "Treyer", "given": "Marie A." } }, { "id": "Barlow-T-A", "name": { "family": "Barlow", "given": "Tom A." } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Friedman-P-G", "name": { "family": "Friedman", "given": "Peter G." } }, { "id": "Morrissey-P", "name": { "family": "Morrissey", "given": "Patrick" }, "orcid": "0000-0001-8177-1023" }, { "id": "Neff-S-G", "name": { "family": "Neff", "given": "Susan G." } }, { "id": "Small-T", "name": { "family": "Small", "given": "Todd" } }, { "id": "Bianchi-L", "name": { "family": "Bianchi", "given": "Luciana" } }, { "id": "Donas-J", "name": { "family": "Donas", "given": "Jos\u00e9" } }, { "id": "Heckman-T-M", "name": { "family": "Heckman", "given": "Timothy M." } }, { "id": "Lee-Young-Wook", "name": { "family": "Lee", "given": "Young-Wook" } }, { "id": "Madore-B-F", "name": { "family": "Madore", "given": "Barry F." }, "orcid": "0000-0002-1576-1676" }, { "id": "Milliard-B", "name": { "family": "Milliard", "given": "Bruno" } }, { "id": "Rich-R-M", "name": { "family": "Rich", "given": "R. Michael" }, "orcid": "0000-0003-0427-8387" }, { "id": "Szalay-A-S", "name": { "family": "Szalay", "given": "Alex S." } }, { "id": "Welsh-B-Y", "name": { "family": "Welsh", "given": "Barry Y." } }, { "id": "Yi-Sukyoung-K", "name": { "family": "Yi", "given": "Sukyoung K." } } ] }, "title": "The UV-Optical Galaxy Color-Magnitude Diagram. I. Basic Properties", "ispublished": "pub", "full_text_status": "public", "keywords": "galaxies: evolution; galaxies: fundamental parameters; galaxies: luminosity function, mass function; galaxies: statistics; ultraviolet: galaxies", "note": "\u00a9 2007 American Astronomical Society.\n\nPrint publication: Issue 2 (2007 December); received 2006 November 14, accepted for publication 2007 June 26.\n\nGALEX (Galaxy Evolution Explorer) is a NASA Small Explorer,\nlaunched in 2003 April. We gratefully acknowledge NASA's\nsupport for construction, operation, and science analysis for the\nGALEX mission, developed in cooperation with the Centre National\nd'Etudes Spatiales of France and the Korean Ministry of\nScience and Technology.\nFacilities: GALEX\n\nPublished - WYDapjss07.pdf
", "abstract": "We have analyzed the bivariate distribution of galaxies as a function of ultraviolet-optical colors and absolute magnitudes in the local universe. The sample consists of galaxies with redshifts and optical photometry from the Sloan Digital Sky Survey (SDSS) main galaxy sample matched with detections in the near-ultraviolet (NUV) and far-ultraviolet (FUV) bands in the Medium Imaging Survey being carried out by the Galaxy Evolution Explorer (GALEX) satellite. In the (NUV \u2212 r)_(0.1) versus M_(r,0.1) galaxy color-magnitude diagram, the galaxies separate into two well-defined blue and red sequences. The (NUV \u2212 r)_(0.1) color distribution at each M_(r,0.1) is not well fit by the sum of two Gaussians due to an excess of galaxies in between the two sequences. The peaks of both sequences become redder with increasing luminosity, with a distinct blue peak visible up to M_(r,0.1) ~ \u2212 23. The r_(0.1)-band luminosity functions vary systematically with color, with the faint-end slope and characteristic luminosity gradually increasing with color. After correcting for attenuation due to dust, we find that approximately one-quarter of the color variation along the blue sequence is due to dust, with the remainder due to star formation history and metallicity. Finally, we present the distribution of galaxies as a function of specific star formation rate and stellar mass. The specific star formation rates imply that galaxies along the blue sequence progress from low-mass galaxies with star formation rates that increase somewhat with time to more massive galaxies with a more or less constant star formation rate. Above a stellar mass of ~10^(10.5) M_\u2609, galaxies with low ratios of current to past averaged star formation rate begin to dominate.", "date": "2007-12", "date_type": "published", "publication": "Astrophysical Journal Supplement Series", "volume": "173", "number": "2", "publisher": "American Astronomical Society", "pagerange": "293-314", "id_number": "CaltechAUTHORS:20091117-113251451", "issn": "0067-0049", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20091117-113251451", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" }, { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1086/521402", "primary_object": { "basename": "WYDapjss07.pdf", "url": "https://authors.library.caltech.edu/records/n4fsm-t4108/files/WYDapjss07.pdf" }, "resource_type": "article", "pub_year": "2007", "author_list": "Wyder, Ted K.; Martin, D. Christopher; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/afscw-jj304", "eprint_id": 17473, "eprint_status": "archive", "datestamp": "2023-08-22 10:35:08", "lastmod": "2023-10-19 23:55:29", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted K." } }, { "id": "Schiminovich-D", "name": { "family": "Schiminovich", "given": "David" } }, { "id": "Barlow-T-A", "name": { "family": "Barlow", "given": "Tom A." } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Friedman-P-G", "name": { "family": "Friedman", "given": "Peter G." } }, { "id": "Morrissey-P", "name": { "family": "Morrissey", "given": "Patrick" }, "orcid": "0000-0001-8177-1023" }, { "id": "Neff-S-G", "name": { "family": "Neff", "given": "Susan G." } }, { "id": "Seibert-M", "name": { "family": "Seibert", "given": "Mark" }, "orcid": "0000-0002-1143-5515" }, { "id": "Small-T", "name": { "family": "Small", "given": "Todd" } }, { "id": "Welsh-B-Y", "name": { "family": "Welsh", "given": "Barry Y." } }, { "id": "Bianchi-L", "name": { "family": "Bianchi", "given": "Luciana" } }, { "id": "Donas-J", "name": { "family": "Donas", "given": "Jos\u00e9" } }, { "id": "Heckman-T-M", "name": { "family": "Heckman", "given": "Timothy M." } }, { "id": "Lee-Young-Wook", "name": { "family": "Lee", "given": "Young-Wook" } }, { "id": "Madore-B-F", "name": { "family": "Madore", "given": "Barry F." }, "orcid": "0000-0002-1576-1676" }, { "id": "Milliard-B", "name": { "family": "Milliard", "given": "Bruno" } }, { "id": "Rich-R-M", "name": { "family": "Rich", "given": "R. Michael" }, "orcid": "0000-0003-0427-8387" }, { "id": "Szalay-A-S", "name": { "family": "Szalay", "given": "Alex S." } }, { "id": "Yi-Sukyoung-K", "name": { "family": "Yi", "given": "Sukyoung K." } } ] }, "title": "The UV-Optical Galaxy Color-Magnitude Diagram. III. Constraints on Evolution from the Blue to the Red Sequence", "ispublished": "pub", "full_text_status": "public", "keywords": "galaxies : evolution; ultraviolet : galaxies", "note": "\u00a9 2007 The American Astronomical Society.\nReceived 2006 February 27; accepted 2006 June 18.\nGALEX (Galaxy Evolution Explorer) is a NASA Small Explorer,\nlaunched in 2003 April. We gratefully acknowledge NASA's\nsupport for construction, operation, and science analysis for the\nGALEX mission, developed in cooperation with the Centre National\nd'Etudes Spatiales of France and the Korean Ministry of\nScience and Technology. We also thank the referee for excellent\ncomments.\nFacilities: GALEX.\n\nPublished - MARapjss07a.pdf
", "abstract": "We introduce a new quantity, the mass flux density of galaxies evolving from the blue sequence to the red sequence. We propose a simple technique for constraining this mass flux using the volume-corrected number density in the extinction-corrected UV-optical color-magnitude distribution, the stellar age indexes H\u03b4_A and D_n(4000), and a simple prescription for spectral evolution using a quenched star formation history. We exploit the excellent separation of red and blue sequences in the NUV \u2212 r band Hess function. The final value we measure, \u03c1_T = 0.033 M_\u2299 yr^(\u22121) Mpc^(\u22123), is strictly speaking an upper limit due to the possible contributions of bursting, composite, and extincted galaxies. However, it compares favorably with estimates of the average mass flux that we make based on the red luminosity function evolution derived from the DEEP2 and COMBO-17 surveys, \u03c1_R = +0.034 M_\u2299 yr^(\u22121) Mpc^(\u22123). We find that the blue sequence mass has remained roughly constant since z = 1 (\u03c1_B \u2243 0.01 M_\u2299 yr^(\u22121) Mpc^(\u22123)), but the average on-going star formation of \u03c1_(SF) \u2243 0.037 M_\u2299 yr^(\u22121) Mpc^(\u22123) over 0 < z < 1 is balanced by mass flux off the blue sequence. We explore the nature of the galaxies in the transition zone with particular attention to the frequency and impact of active galactic nuclei (AGNs). The AGN fraction peaks in the transition zone. We find circumstantial, albeit weak evidence that the quench rates are higher in higher luminosity AGNs.", "date": "2007-12", "date_type": "published", "publication": "Astrophysical Journal Supplement Series", "volume": "173", "number": "2", "publisher": "American Astronomical Society", "pagerange": "342-356", "id_number": "CaltechAUTHORS:20100212-150837678", "issn": "0067-0049", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20100212-150837678", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA" } ] }, "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" }, { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1086/516639", "primary_object": { "basename": "MARapjss07a.pdf", "url": "https://authors.library.caltech.edu/records/afscw-jj304/files/MARapjss07a.pdf" }, "resource_type": "article", "pub_year": "2007", "author_list": "Martin, D. Christopher; Wyder, Ted K.; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/na1bh-wj762", "eprint_id": 16358, "eprint_status": "archive", "datestamp": "2023-08-22 10:33:30", "lastmod": "2023-10-19 22:08:31", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Basu-Zych-A-R", "name": { "family": "Basu-Zych", "given": "Antara R." } }, { "id": "Schiminovich-D", "name": { "family": "Schiminovich", "given": "David" } }, { "id": "Johnson-B-D", "name": { "family": "Johnson", "given": "Benjamin D." } }, { "id": "Hoopes-C-G", "name": { "family": "Hoopes", "given": "Charles" } }, { "id": "Overzier-R-A", "name": { "family": "Overzier", "given": "Roderik" } }, { "id": "Treyer-M-A", "name": { "family": "Treyer", "given": "Marie A." } }, { "id": "Heckman-T-M", "name": { "family": "Heckman", "given": "Timothy M." } }, { "id": "Barlow-T-A", "name": { "family": "Barlow", "given": "Tom A." } }, { "id": "Bianchi-L-C", "name": { "family": "Bianchi", "given": "Luciana" }, "orcid": "0000-0001-7746-5461" }, { "id": "Conrow-T", "name": { "family": "Conrow", "given": "Tim" } }, { "id": "Donas-J", "name": { "family": "Donas", "given": "Jos\u00e9" } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Friedman-P-G", "name": { "family": "Friedman", "given": "Peter G." } }, { "id": "Lee-Young-Wook", "name": { "family": "Lee", "given": "Young-Wook" } }, { "id": "Madore-B-F", "name": { "family": "Madore", "given": "Barry F." }, "orcid": "0000-0002-1576-1676" }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Milliard-B", "name": { "family": "Milliard", "given": "Bruno" } }, { "id": "Morrissey-P", "name": { "family": "Morrissey", "given": "Patrick" }, "orcid": "0000-0001-8177-1023" }, { "id": "Neff-S-G", "name": { "family": "Neff", "given": "Susan G." } }, { "id": "Rich-R-M", "name": { "family": "Rich", "given": "R. Michael" }, "orcid": "0000-0003-0427-8387" }, { "id": "Salim-S", "name": { "family": "Salim", "given": "Samir" }, "orcid": "0000-0003-2342-7501" }, { "id": "Seibert-M", "name": { "family": "Seibert", "given": "Mark" }, "orcid": "0000-0002-1143-5515" }, { "id": "Small-T-A", "name": { "family": "Small", "given": "Todd A." } }, { "id": "Szalay-A-S", "name": { "family": "Szalay", "given": "Alex S." } }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted K." } }, { "id": "Yi-Sukyoung-K", "name": { "family": "Yi", "given": "Sukyoung" } } ] }, "title": "The Young and the Dustless: Interpreting Radio Observations of Ultraviolet-Luminous Galaxies", "ispublished": "pub", "full_text_status": "public", "keywords": "galaxies : starburst; radio continuum : galaxies; ultraviolet : galaxies", "note": "\u00a9 2007 The American Astronomical Society.\nReceived 2007 February 7; accepted 2007 June 18.\nGALEX (Galaxy Evolution Explorer) is a NASA small explorer,\nlaunched in 2003 April. We gratefully acknowledge NASA's support\nfor construction, operation, and science analysis for the\nGALEX mission, developed in cooperation with the Centre National\nd'Etudes Spatiales of France and the Korean Ministry of\nScience and Technology. We thank Michael Blanton for access\nto the IDL kcorrect (ver. 4.1.4) analysis package.We recognize\nthat funding for the SDSS archive has been provided by the\nAlfred P. Sloan Foundation, the Participating Institutions, the\nNational Aeronautics and Space Administration, the National\nScience Foundation, the US Department of Energy, the Japanese\nMonbukagakusho, and the Max Planck Society.\n\nPublished - BASapjss07.pdf
", "abstract": "Ultraviolet-luminous galaxies (UVLGs) have been identified as intensely star-forming nearby galaxies. A subset of these, the supercompact UVLGs, are believed to be local analogs of high-redshift Lyman break galaxies. Here we investigate the radio continuum properties of this important population for the first time. We have observed 42 supercompact UVLGs with the VLA, all of which have extensive coverage in the UV/optical by GALEX and SDSS. Our analysis includes comparison samples of multiwavelength data from the Spitzer First Look Survey and from the SDSS-GALEX matched catalogs. In addition we have Spitzer MIPS data for 24 of our galaxies and find that they fall on the radio-FIR correlation of normal star-forming galaxies. We find that our galaxies have lower radio to UV ratios and lower Balmer decrements than other local galaxies with similar (high) star formation rates. Optical spectra show they have lower D_n(4000) and H\u03b4_A indices, higher H\u03b2 emission-line equivalent widths, and higher [O III]5007/H\u03b2 emission-line ratios than normal star-forming galaxies. Comparing these results to galaxy spectral evolution models we conclude that supercompact UVLGs are distinguished from normal star-forming galaxies firstly by their high specific star formation rates. Moreover, compared to other types of galaxies with similar star formation rates, they have significantly less dust attenuation. In both regards they are similar to Lyman break galaxies. This suggests that the process that causes star formation in the supercompact UVLGs differs from other local star-forming galaxies, but may be similar to Lyman break galaxies.", "date": "2007-12", "date_type": "published", "publication": "Astrophysical Journal Supplement Series", "volume": "173", "number": "2", "publisher": "American Astronomical Society", "pagerange": "457-470", "id_number": "CaltechAUTHORS:20091016-084254435", "issn": "0067-0049", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20091016-084254435", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "Alfred P. Sloan Foundation" }, { "agency": "Participating Institutions" }, { "agency": "NASA" }, { "agency": "NSF" }, { "agency": "Department of Energy (DOE)" }, { "agency": "Jaqpanese Monbukagakusho" }, { "agency": "Max Planck Society" } ] }, "local_group": { "items": [ { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1086/521146", "primary_object": { "basename": "BASapjss07.pdf", "url": "https://authors.library.caltech.edu/records/na1bh-wj762/files/BASapjss07.pdf" }, "resource_type": "article", "pub_year": "2007", "author_list": "Basu-Zych, Antara R.; Schiminovich, David; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/whk45-c8s65", "eprint_id": 17716, "eprint_status": "archive", "datestamp": "2023-08-22 10:35:49", "lastmod": "2023-10-20 00:10:32", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Salim-S", "name": { "family": "Salim", "given": "Samir" }, "orcid": "0000-0003-2342-7501" }, { "id": "Rich-R-M", "name": { "family": "Rich", "given": "R. Michael" }, "orcid": "0000-0003-0427-8387" }, { "id": "Charlot-S", "name": { "family": "Charlot", "given": "St\u00e9phane" } }, { "id": "Brinchmann-J", "name": { "family": "Brinchmann", "given": "Jarle" } }, { "id": "Johnson-B-D", "name": { "family": "Johnson", "given": "Benjamin D." } }, { "id": "Schiminovich-D", "name": { "family": "Schiminovich", "given": "David" } }, { "id": "Seibert-M", "name": { "family": "Seibert", "given": "Mark" }, "orcid": "0000-0002-1143-5515" }, { "id": "Mallery-R-P", "name": { "family": "Mallery", "given": "Ryan" } }, { "id": "Heckman-T-M", "name": { "family": "Heckman", "given": "Timothy M." } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Friedman-P-G", "name": { "family": "Friedman", "given": "Peter G." } }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Morrissey-P", "name": { "family": "Morrissey", "given": "Patrick" }, "orcid": "0000-0001-8177-1023" }, { "id": "Neff-S-G", "name": { "family": "Neff", "given": "Susan G." } }, { "id": "Small-T-A", "name": { "family": "Small", "given": "Todd" } }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted K." } }, { "id": "Bianchi-L-C", "name": { "family": "Bianchi", "given": "Luciana" }, "orcid": "0000-0001-7746-5461" }, { "id": "Donas-J", "name": { "family": "Donas", "given": "Jos\u00e9" } }, { "id": "Lee-Young-Wook", "name": { "family": "Lee", "given": "Young-Wook" } }, { "id": "Madore-B-F", "name": { "family": "Madore", "given": "Barry F." }, "orcid": "0000-0002-1576-1676" }, { "id": "Milliard-B", "name": { "family": "Milliard", "given": "Bruno" } }, { "id": "Szalay-A-S", "name": { "family": "Szalay", "given": "Alex S." } }, { "id": "Welsh-B-Y", "name": { "family": "Welsh", "given": "Barry Y." } }, { "id": "Yi-Sukyoung-K", "name": { "family": "Yi", "given": "Sukyoung K." } } ] }, "title": "UV Star Formation Rates in the Local Universe", "ispublished": "pub", "full_text_status": "public", "keywords": "galaxies: active; galaxies: evolution; galaxies: fundamental parameters; surveys; ultraviolet: galaxies", "note": "\u00a9 2007 American Astronomical Society.\n\nPrint publication: Issue 2 (2007 December); received 2006 December 22; accepted for publication 2007 April 25.\n\nWe thank Janice C. Lee for insightful comments and helpful\ndiscussions. We thank the referee for numerous valuable suggestions.\nWe also thank Alessandro Boselli and Michael Blanton.\nGALEX (Galaxy Evolution Explorer) is a NASA Small Explorer,\nlaunched in 2003 April. We gratefully acknowledge NASA's support\nfor construction, operation, and science analysis for the\nGALEX mission, developed in cooperation with the Centre\nNational d'Etudes Spatiales of France and the Korean Ministry\nof Science and Technology. Funding for the Sloan Digital Sky\nSurvey (SDSS) and SDSS-II has been provided by the Alfred P.\nSloan Foundation, the Participating Institutions, the National\nScience Foundation, the U.S. Department of Energy, the National\nAeronautics and Space Administration, the Japanese\nMonbukagakusho, and theMax Planck Society, and the Higher\nEducation Funding Council for England. This research has made\nuse of NASA's Astrophysics Data System.\nFacilities: GALEX, Sloan\n\nPublished - SALapjss07.pdf
", "abstract": "We measure star formation rates (SFRs) of \u224850,000 optically selected galaxies in the local universe (z \u2248 0.1)\u2014from gas-rich dwarfs to massive ellipticals. We obtain dust-corrected SFRs by fitting the GALEX (ultraviolet) and SDSS photometry to a library of dust-attenuated population synthesis models. For star-forming galaxies, our UV-based SFRs compare remarkably well with those from SDSS-measured emission lines (H\u03b1). Deviations from perfect agreement are shown to be due to differences in the dust attenuation estimates. In contrast to H\u03b1 measurements, UV provides reliable SFRs for galaxies with weak H\u03b1, and where H\u03b1 is contaminated with AGN emission (1/2 of the sample). Using full-SED SFRs, we calibrate a simple prescription that uses GALEX far- and near-UV magnitudes to produce dust-corrected SFRs for normal star-forming galaxies. The specific SFR is considered as a function of stellar mass for (1) star-forming galaxies with no AGNs, (2) those hosting an AGN, and (3) galaxies without H\u03b1 emission. We find that the three have distinct star formation histories, with AGNs lying intermediate between the star-forming and the quiescent galaxies. Star-forming galaxies without an AGN lie on a relatively narrow linear sequence. Remarkably, galaxies hosting a strong AGN appear to represent the massive continuation of this sequence. On the other hand, weak AGNs, while also massive, have lower SFRs, sometimes extending to the realm of quiescent galaxies. We propose an evolutionary sequence for massive galaxies that smoothly connects normal star-forming galaxies to quiescent galaxies via strong and weak AGNs. We confirm that some galaxies with no H\u03b1 show signs of star formation in the UV. We derive a cosmic star formation density at z = 0.1 with significantly smaller total error than previous measurements.", "date": "2007-12", "date_type": "published", "publication": "Astrophysical Journal Supplement Series", "volume": "173", "number": "2", "publisher": "American Astronomical Society", "pagerange": "267-292", "id_number": "CaltechAUTHORS:20100310-103408116", "issn": "0067-0049", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20100310-103408116", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" }, { "id": "Space-Astrophysics-Laboratory" }, { "id": "Infrared-Processing-and-Analysis-Center-(IPAC)" } ] }, "doi": "10.1086/519218", "primary_object": { "basename": "SALapjss07.pdf", "url": "https://authors.library.caltech.edu/records/whk45-c8s65/files/SALapjss07.pdf" }, "resource_type": "article", "pub_year": "2007", "author_list": "Salim, Samir; Rich, R. Michael; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/1qcby-fc616", "eprint_id": 17552, "eprint_status": "archive", "datestamp": "2023-08-22 10:35:25", "lastmod": "2023-10-19 23:59:45", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Kaviraj-S", "name": { "family": "Kaviraj", "given": "S." } }, { "id": "Schawinski-K", "name": { "family": "Schawinski", "given": "K." }, "orcid": "0000-0001-5464-0888" }, { "id": "Devriendt-J-E-G", "name": { "family": "Devriendt", "given": "J. E. G." }, "orcid": "0000-0002-8140-0422" }, { "id": "Ferreras-I", "name": { "family": "Ferreras", "given": "I." } }, { "id": "Khochfar-S", "name": { "family": "Khochfar", "given": "S." } }, { "id": "Yoon-Suk-Jin", "name": { "family": "Yoon", "given": "S.-J." } }, { "id": "Yi-Sukyoung-K", "name": { "family": "Yi", "given": "S. K." } }, { "id": "Deharveng-J-M", "name": { "family": "Deharveng", "given": "J.-M." } }, { "id": "Boselli-A", "name": { "family": "Boselli", "given": "A." } }, { "id": "Barlow-T-A", "name": { "family": "Barlow", "given": "T." } }, { "id": "Conrow-T", "name": { "family": "Conrow", "given": "T." } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "K." }, "orcid": "0000-0001-5800-5531" }, { "id": "Friedman-P-G", "name": { "family": "Friedman", "given": "P. G." } }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. C." }, "orcid": "0000-0002-8650-1644" }, { "id": "Morrissey-P", "name": { "family": "Morrissey", "given": "P." }, "orcid": "0000-0001-8177-1023" }, { "id": "Neff-S-G", "name": { "family": "Neff", "given": "S." } }, { "id": "Schiminovich-D", "name": { "family": "Schiminovich", "given": "D." } }, { "id": "Seibert-M", "name": { "family": "Seibert", "given": "M." }, "orcid": "0000-0002-1143-5515" }, { "id": "Small-T-A", "name": { "family": "Small", "given": "T." } }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "T." } }, { "id": "Bianchi-L-C", "name": { "family": "Bianchi", "given": "L." }, "orcid": "0000-0001-7746-5461" }, { "id": "Donas-J", "name": { "family": "Donas", "given": "J." } }, { "id": "Heckman-T-M", "name": { "family": "Heckman", "given": "T." } }, { "id": "Lee-Young-Wook", "name": { "family": "Lee", "given": "Y.-W." } }, { "id": "Madore-B-F", "name": { "family": "Madore", "given": "B." }, "orcid": "0000-0002-1576-1676" }, { "id": "Milliard-B", "name": { "family": "Milliard", "given": "B." } }, { "id": "Rich-R-M", "name": { "family": "Rich", "given": "R. M." }, "orcid": "0000-0003-0427-8387" }, { "id": "Szalay-A-S", "name": { "family": "Szalay", "given": "A." } } ] }, "title": "UV-Optical Colors as Probes of Early-Type Galaxy Evolution", "ispublished": "pub", "full_text_status": "public", "keywords": "galaxies: elliptical and lenticular, cD; galaxies: evolution; galaxies: formation; galaxies: fundamental parameters", "note": "\u00a9 2007 The American Astronomical Society.\nReceived 2006 January 4; accepted 2006 September 11.\nWe are grateful to the anonymous referee for various clarifications.\nWe warmly thank Chris Wolf for providing high-resolution\nCOMBO-17 images, which formed an integral part of our morphological\nclassification process. We also thank Mariangela\nBernardi for her generous help in the initial stages of this project, for providing the DR2 versions of her SDSS early-type catalog\nprior to publication, and many interesting discussions. We are\ngrateful to Jeremy Blaizot for his extensive help with the GALICS\nmodel and to Andre\u00b4s Jorda\u00b4n, Joseph Silk, Roger Davies, and\nAndrew Benson for many useful comments regarding this work.\nS. K. acknowledges PPARC graduate D Phil scholarship PPA/S/S/\n2002/03532. This work was supported by grant R01-2006-000-\n10716-0 from the Basic Research Program of the Korea Science & Engineering Foundation and Yonsei University Research Fund\n(2005) to S. K. Y.\n\nPublished - KAVapjss07.pdf
", "abstract": "We have studied ~2100 early-type galaxies in the SDSS DR3 which have been detected by the GALEX Medium Imaging Survey (MIS), in the redshift range 0 < z < 0.11. Combining GALEX UV photometry with corollary optical data from the SDSS, we find that, at a 95% confidence level, at least ~30% of galaxies in this sample have UV to optical colors consistent with some recent star formation within the last Gyr. In particular, galaxies with an NUV \u2212 r color less than 5.5 are very likely to have experienced such recent star formation, taking into account the possibility of a contribution to NUV flux from the UV upturn phenomenon. We find quantitative agreement between the observations and the predictions of a semianalytical \u039bCDM hierarchical merger model and deduce that early-type galaxies in the redshift range 0 < z < 0.11 have ~1%-3% of their stellar mass in stars less than 1 Gyr old. The average age of this recently formed population is ~300-500 Myr. We also find that \"monolithically\" evolving galaxies, where recent star formation can be driven solely by recycled gas from stellar mass loss, cannot exhibit the blue colors (NUV \u2212 r < 5.5) seen in a significant fraction (~30%) of our observed sample.", "date": "2007-12", "date_type": "published", "publication": "Astrophysical Journal Supplement Series", "volume": "173", "number": "2", "publisher": "American Astronomical Society", "pagerange": "619-642", "id_number": "CaltechAUTHORS:20100222-105254739", "issn": "0067-0049", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20100222-105254739", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "Particle Physics and Astronomy Research Council (PPARC)", "grant_number": "PPA/S/S/2002/03532" }, { "agency": "Korea Science and Engineering Foundation", "grant_number": "R01-2006-000-10716-0" }, { "agency": "Yonsei University" } ] }, "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" }, { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1086/516633", "primary_object": { "basename": "KAVapjss07.pdf", "url": "https://authors.library.caltech.edu/records/1qcby-fc616/files/KAVapjss07.pdf" }, "resource_type": "article", "pub_year": "2007", "author_list": "Kaviraj, S.; Schawinski, K.; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/j39p1-ybg60", "eprint_id": 16869, "eprint_status": "archive", "datestamp": "2023-08-22 10:34:16", "lastmod": "2023-10-19 22:37:21", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Thilker-D-A", "name": { "family": "Thilker", "given": "David A." }, "orcid": "0000-0002-8528-7340" }, { "id": "Boissier-S", "name": { "family": "Boissier", "given": "Samuel" }, "orcid": "0000-0002-9091-2366" }, { "id": "Bianchi-L", "name": { "family": "Bianchi", "given": "Luciana" } }, { "id": "Calzetti-D", "name": { "family": "Calzetti", "given": "Daniela" }, "orcid": "0000-0002-5189-8004" }, { "id": "Boselli-A", "name": { "family": "Boselli", "given": "Alessandro" } }, { "id": "Dale-D-A", "name": { "family": "Dale", "given": "Daniel A." }, "orcid": "0000-0002-5782-9093" }, { "id": "Seibert-M", "name": { "family": "Seibert", "given": "Mark" }, "orcid": "0000-0002-1143-5515" }, { "id": "Braun-R", "name": { "family": "Braun", "given": "Robert" } }, { "id": "Burgarella-D", "name": { "family": "Burgarella", "given": "Denis" } }, { "id": "Gil-de-Paz-A", "name": { "family": "Gil de Paz", "given": "Armando" }, "orcid": "0000-0001-6150-2854" }, { "id": "Helou-G", "name": { "family": "Helou", "given": "George" }, "orcid": "0000-0003-3367-3415" }, { "id": "Walter-F", "name": { "family": "Walter", "given": "Fabian" }, "orcid": "0000-0003-4793-7880" }, { "id": "Kennicutt-R-C", "name": { "family": "Kennicutt", "given": "R. C., Jr." }, "orcid": "0000-0001-5448-1821" }, { "id": "Madore-B-F", "name": { "family": "Madore", "given": "Barry F." }, "orcid": "0000-0002-1576-1676" }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Barlow-T-A", "name": { "family": "Barlow", "given": "Tom A." } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Friedman-P-G", "name": { "family": "Friedman", "given": "Peter G." } }, { "id": "Morrissey-P", "name": { "family": "Morrissey", "given": "Patrick" }, "orcid": "0000-0001-8177-1023" }, { "id": "Neff-S-G", "name": { "family": "Neff", "given": "Susan G." } }, { "id": "Schiminovich-D", "name": { "family": "Schiminovich", "given": "David" } }, { "id": "Small-T", "name": { "family": "Small", "given": "Todd" } }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted K." } }, { "id": "Donas-J", "name": { "family": "Donas", "given": "Jos\u00e9" } }, { "id": "Heckman-T-M", "name": { "family": "Heckman", "given": "Timothy M." } }, { "id": "Lee-Young-Wook", "name": { "family": "Lee", "given": "Young-Wook" } }, { "id": "Milliard-B", "name": { "family": "Milliard", "given": "Bruno" } }, { "id": "Rich-R-M", "name": { "family": "Rich", "given": "R. Michael" }, "orcid": "0000-0003-0427-8387" }, { "id": "Szalay-A-S", "name": { "family": "Szalay", "given": "Alex S." } }, { "id": "Welsh-B-Y", "name": { "family": "Welsh", "given": "Barry Y." } }, { "id": "Yi-Sukyoung-K", "name": { "family": "Yi", "given": "Sukyoung K." } } ] }, "title": "Ultraviolet and Infrared Diagnostics of Star Formation and Dust in NGC 7331", "ispublished": "pub", "full_text_status": "public", "keywords": "galaxies: evolution; galaxies: individual (NGC 7331); infrared: galaxies; ultraviolet: galaxies", "note": "\u00a9 2009 American Astronomical Society.\n\nPrint publication: Issue 2 (2007 December); received 2006 July 17; accepted for publication 2006 September 26.\n\nGALEX (Galaxy Evolution Explorer) is a NASA Small Explorer,\nlaunched in 2003 April.We gratefully acknowledge NASA's\nsupport for construction, operation, and science analysis for the\nGALEX mission, developed in cooperation with the Centre National\nd'Etudes Spatiales of France and the Korean Ministry of\nScience and Technology. Support for this work, part of the Spitzer\nSpace Telescope Legacy Science Program,was provided by NASA\nthrough contract 1224769 issued by the Jet Propulsion Laboratory\n(JPL), California Institute of Technology, under NASA contract\n1407. This research has made use of the NASA/IPAC Extragalactic\nDatabase (NED) which is operated by JPL, California\nInstitute of Technology, under contract withNASA. This research\nhas made use of NASA's Astrophysics Data System.\n\nPublished - THIapjss07b.pdf
", "abstract": "We present images of NGC 7331 obtained with GALEX and Spitzer, tracing UV and IR signatures of star formation. NGC 7331's morphology at 8-850 \u03bcm is dominated by a central dust ring. This structure is a vigorous site of star formation (hosting one-third of the present activity) but remains inconspicuous in our GALEX UV imagery. Radial profile analysis and photometry for discrete UV- and UV+IR-selected substructures indicate a decline in UV extinction with increasing galactocentric distance, although highly attenuated star-forming regions can be found throughout the disk. UV-optical surface brightness profiles suggest a recent birthrate parameter (b_8) that is highest in the outer part of the disk, even though the local star formation intensity peaks in the ring. Bolometric luminosity and UV attenuation are correlated in substructures on 0.4 kpc scales, with a relationship similar to that established for starburst galaxies. The distribution of substructures in L(IR)/L(FUV), L_\u03bb(FUV)/L_\u03bb(NUV) space suggests that the majority of the disk is best characterized by Milky Way-type dust, with the exception of sources in the star-forming ring. As found by Calzetti et al. in M51, the observed 8 and 24 \u03bcm luminosity for substructures in NGC 7331 are correlated, showing a decline in L_\u03bd(8 \u03bcm)/L_\u03bd(24 \u03bcm) with increasing luminosity. We demonstrate the dependence of L_\u03bd(8 \u03bcm)/L_\u03bd(24 \u03bcm) on the local extinction-corrected H\u03b1 surface brightness (hence current \u03a3_(SFR)). A power law of slope 1.64 (1.87) accurately describes the Schmidt-law relation versus \u03a3_(H_2) (\u03a3_(gas)) for molecular-dominated environments. The same locations show no correlation between \u03a3_(SFR) and \u03a3_(HI). For atomic-dominated regions above an apparent local star formation threshold, we found a trend for increasing \u03a3_(SFR) at higher \u03a3_(HI) , although the Schmidt-law correlation with molecular-only surface density persists in areas dominated by atomic gas.", "date": "2007-12", "date_type": "published", "publication": "Astrophysical Journal Supplement Series", "volume": "173", "number": "2", "publisher": "American Astronomical Society", "pagerange": "572-596", "id_number": "CaltechAUTHORS:20091203-140413022", "issn": "0067-0049", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20091203-140413022", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA", "grant_number": "1224769" }, { "agency": "JPL" }, { "agency": "Caltech" } ] }, "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" }, { "id": "Space-Astrophysics-Laboratory" }, { "id": "Infrared-Processing-and-Analysis-Center-(IPAC)" } ] }, "doi": "10.1086/516646", "primary_object": { "basename": "THIapjss07b.pdf", "url": "https://authors.library.caltech.edu/records/j39p1-ybg60/files/THIapjss07b.pdf" }, "resource_type": "article", "pub_year": "2007", "author_list": "Thilker, David A.; Boissier, Samuel; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/vecsc-4ev31", "eprint_id": 17472, "eprint_status": "archive", "datestamp": "2023-08-22 10:35:03", "lastmod": "2023-10-19 23:55:26", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Johnson-B-D", "name": { "family": "Johnson", "given": "Benjamin D." } }, { "id": "Schiminovich-D", "name": { "family": "Schiminovich", "given": "David" } }, { "id": "Seibert-M", "name": { "family": "Seibert", "given": "Mark" }, "orcid": "0000-0002-1143-5515" }, { "id": "Treyer-M-A", "name": { "family": "Treyer", "given": "Marie" } }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Barlow-T-A", "name": { "family": "Barlow", "given": "Tom A." } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Friedman-P-G", "name": { "family": "Friedman", "given": "Peter G." } }, { "id": "Morrissey-P", "name": { "family": "Morrissey", "given": "Patrick" }, "orcid": "0000-0001-8177-1023" }, { "id": "Neff-S-G", "name": { "family": "Neff", "given": "Susan G." } }, { "id": "Small-T", "name": { "family": "Small", "given": "Todd" } }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted K." } }, { "id": "Bianchi-L", "name": { "family": "Bianchi", "given": "Luciana" } }, { "id": "Donas-J", "name": { "family": "Donas", "given": "Jose" } }, { "id": "Heckman-T-M", "name": { "family": "Heckman", "given": "Timothy M." } }, { "id": "Lee-Young-Wook", "name": { "family": "Lee", "given": "Young-Wook" } }, { "id": "Madore-B-F", "name": { "family": "Madore", "given": "Barry F." }, "orcid": "0000-0002-1576-1676" }, { "id": "Milliard-B", "name": { "family": "Milliard", "given": "Bruno" } }, { "id": "Rich-R-M", "name": { "family": "Rich", "given": "R. Michael" }, "orcid": "0000-0003-0427-8387" }, { "id": "Szalay-A-S", "name": { "family": "Szalay", "given": "Alex S." } }, { "id": "Welsh-B-Y", "name": { "family": "Welsh", "given": "Barry Y." } }, { "id": "Yi-Sukyoung-K", "name": { "family": "Yi", "given": "Sukyoung K." } } ] }, "title": "Ultraviolet through Infrared Spectral Energy Distributions from 1000 SDSS Galaxies: Dust Attenuation", "ispublished": "pub", "full_text_status": "public", "keywords": "dust, extinction; galaxies : evolution; galaxies : fundamental parameters; infrared : galaxies; ultraviolet : galaxies", "note": "\u00a9 2007 The American Astronomical Society.\nReceived 2007 August 2; accepted 2007 September 3.\nB. D. J. would like to thank A. Basu-Zych, S. Salim, A. Boselli,\nS. Boissier, and L. Cortese for comments that improved the paper.\nB. D. J. was supported by NASA GSRP grant NNG-05GO43H.\nGALEX (Galaxy Evolution Explorer) is a NASA Small Explorer,\nlaunched in 2003 April. We gratefully acknowledge NASA's\nsupport for construction, operation, and science analysis for the\nGALEX mission, developed in cooperation with the Centre National\nd'Etudes Spatiales of France and the Korean Ministry of\nScience and Technology. This work is based in part on observations\nmade with the Spitzer Space Telescope, which is operated\nby the Jet Propulsion Laboratory, California Institute of Technology,\nunder a contract with NASA. In particular, the publicly\navailable Spitzer data obtained by the SWIRE team have been\nessential to this work. Funding for the SDSS and SDSS-II has\nbeen provided by the Alfred P. Sloan Foundation, the Participating\nInstitutions, the National Science Foundation, the Department\nof Energy, the National Aeronautics and Space Administration,\nthe Japanese Monbukagakusho, the Max Planck Society, and the\nHigher Education Funding Council for England. The SDSS Web\nsite is http://www.sdss.org. The SDSS is managed by the Astrophysical\nResearch Consortium for the Participating Institutions.\nThe Participating Institutions are the American Museum of Natural History,\nAstrophysical Institute Potsdam, University of Basel,\nUniversity of Cambridge, Case Western Reserve University, University\nof Chicago, Drexel University, Fermilab, the Institute for\nAdvanced Study, the Japan Participation Group, Johns Hopkins\nUniversity, the Joint Institute for Nuclear Astrophysics, the Kavli\nInstitute for Particle Astrophysics and Cosmology, the Korean\nScientist Group, the Chinese Academy of Sciences (LAMOST),\nLos Alamos National Laboratory, the Max Planck Institute for\nAstronomy (MPIA), the Max Planck Institute for Astrophysics\n(MPA), New Mexico State University, Ohio State University,\nUniversity of Pittsburgh, University of Portsmouth, Princeton\nUniversity, the United States Naval Observatory, and the University\nof Washington.\n\nPublished - JOHapjss07b.pdf
", "abstract": "The meaningful comparison of models of galaxy evolution to observations is critically dependent on the accurate treatment of dust attenuation. To investigate dust absorption and emission in galaxies we have assembled a sample of ~1000 galaxies with UV through IR photometry from GALEX, SDSS, and Spitzer, and optical spectroscopy from SDSS. The ratio of IR to UV emission (IRX) is used to constrain the dust attenuation in galaxies. We use the 4000 \u00c5 break as a robust and useful, although coarse, indicator of star formation history (SFH). We examine the relationship between IRX and the UV spectral slope (a common attenuation indicator at high redshift) and find little dependence of the scatter on D_n(4000). We construct average UV through far-IR spectral energy distributions (SEDs) for different ranges of IRX, D_n(4000), and stellar mass (M_*) to show the variation of the entire SED with these parameters. When binned simultaneously by IRX, D_n(4000), and M_* these SEDs allow us to determine a low-resolution average attenuation curve for different ranges of M_*. The attenuation curves thus derived are consistent with a \u03bb^(\u22120.7) attenuation law, and we find no significant variations with M_*. Finally, we show the relationship between IRX and the global stellar mass surface density and gas-phase metallicity. Among star-forming galaxies we find a strong correlation between IRX and stellar mass surface density, even at constant metallicity, a result that is closely linked to the well-known correlation between IRX and star formation rate.", "date": "2007-12", "date_type": "published", "publication": "Astrophysical Journal Supplement Series", "volume": "173", "number": "2", "publisher": "American Astronomical Society", "pagerange": "392-403", "id_number": "CaltechAUTHORS:20100212-135026966", "issn": "0067-0049", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20100212-135026966", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA Graduate Student Research Fellowship", "grant_number": "NNG-05GO43H" } ] }, "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" }, { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1086/522960", "primary_object": { "basename": "JOHapjss07b.pdf", "url": "https://authors.library.caltech.edu/records/vecsc-4ev31/files/JOHapjss07b.pdf" }, "resource_type": "article", "pub_year": "2007", "author_list": "Johnson, Benjamin D.; Schiminovich, David; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/edv3h-2c472", "eprint_id": 20005, "eprint_status": "archive", "datestamp": "2023-08-22 10:36:46", "lastmod": "2023-10-20 22:07:47", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Johnson-B-D", "name": { "family": "Johnson", "given": "Benjamin D." } }, { "id": "Schiminovich-D", "name": { "family": "Schiminovich", "given": "David" } }, { "id": "Seibert-M", "name": { "family": "Seibert", "given": "Mark" }, "orcid": "0000-0002-1143-5515" }, { "id": "Treyer-M", "name": { "family": "Treyer", "given": "Marie" } }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Barlow-T-A", "name": { "family": "Barlow", "given": "Tom A." } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Friedman-P-G", "name": { "family": "Friedman", "given": "Peter G." } }, { "id": "Morrissey-P", "name": { "family": "Morrissey", "given": "Patrick" }, "orcid": "0000-0001-8177-1023" }, { "id": "Neff-S-G", "name": { "family": "Neff", "given": "Susan G." } }, { "id": "Small-T", "name": { "family": "Small", "given": "Todd" } }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted K." } }, { "id": "Bianchi-L", "name": { "family": "Bianchi", "given": "Luciana" } }, { "id": "Donas-J", "name": { "family": "Donas", "given": "Jos\u00e9" } }, { "id": "Heckman-T-M", "name": { "family": "Heckman", "given": "Timothy M." } }, { "id": "Lee-Young-Wook", "name": { "family": "Lee", "given": "Young-Wook" } }, { "id": "Madore-B-F", "name": { "family": "Madore", "given": "Barry F." }, "orcid": "0000-0002-1576-1676" }, { "id": "Milliard-B", "name": { "family": "Milliard", "given": "Bruno" } }, { "id": "Rich-R-M", "name": { "family": "Rich", "given": "R. Michael" }, "orcid": "0000-0003-0427-8387" }, { "id": "Szalay-A-S", "name": { "family": "Szalay", "given": "Alex S." } }, { "id": "Welsh-B-Y", "name": { "family": "Welsh", "given": "Barry Y." } }, { "id": "Yi-Sukyoung-K", "name": { "family": "Yi", "given": "Sukyoung K." } } ] }, "title": "Ultraviolet, Optical, and Infrared Constraints on Models of Stellar Populations and Dust Attenuation", "ispublished": "pub", "full_text_status": "public", "keywords": "dust, extinction; galaxies: evolution; galaxies: fundamental parameters; infrared: galaxies; ultraviolet: galaxies", "note": "\u00a9 2007 American Astronomical Society.\n\nReceived 2007 February 26; accepted 2007 August 30.\n\nThe anonymous referee provided extremely useful comments that resulted in substantial improvements to the paper. B. D. J. thanks S. Salim, A. Boselli, S. Boissier, and L. Cortese for helpful comments. B. D. J. was supported by NASA GSRP grant NNG- 05GO43H. GALEX (Galaxy Evolution Explorer) is a NASA Small Explorer, launched in 2003 April. We gratefully acknowledge NASA's support for construction, operation, and science analysis for the GALEX mission, developed in cooperation with the Centre National d'Etudes Spatiales of France and the Korean Ministry of Science and Technology. This work is based in part on observationsmade with the Spitzer Space Telescope, which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under a contract with NASA. In particular, the publicly available Spitzer data obtained by the SWIRE team have been essential to this work. Funding for the SDSS and SDSS-II has been provided by the Alfred P. Sloan Foundation, the Participating Institutions, the National Science Foundation, the US Department of Energy, the National Aeronautics and Space Administration, the Japanese Monbukagakusho, the Max Planck Society, and the Higher Education Funding Council for England. The SDSS Web site is http://www.sdss.org. The SDSS is managed by the Astrophysical Research Consortium for the Participating Institutions. The Participating Institutions are the American Museum of Natural History, the Astrophysical Institute Potsdam, the University of Basel, the University of Cambridge, Case Western Reserve University, the University of Chicago, Drexel University, Fermilab, the Institute for Advanced Study, the Japan Participation Group, Johns Hopkins University, the Joint Institute for Nuclear Astrophysics, the Kavli Institute for Particle Astrophysics and Cosmology, the Korean Scientist Group, the Chinese Academy of Sciences (LAMOST), Los Alamos National Laboratory, the Max Planck Institute for Astronomy (MPIA), the Max Planck Institute for Astrophysics (MPA), New Mexico State University, Ohio State University, the University of Pittsburgh, the University of Portsmouth, Princeton University, the United States Naval Observatory, and the University of Washington.\n\nPublished - JOHapjss07a.pdf
", "abstract": "The color of galaxies is a fundamental property, easily measured, that constrains models of galaxies and their evolution. Dust attenuation and star formation history (SFH) are the dominant factors affecting the color of galaxies. Here we explore the empirical relation between SFH, attenuation, and color for a wide range of galaxies, including early types. These galaxies have been observed by GALEX, SDSS, and Spitzer, allowing the construction of measures of dust attenuation from the ratio of infrared (IR) to ultraviolet (UV) flux and measures of SFH from the strength of the 4000 \u00c5 break. The empirical relation between these three quantities is compared to models that separately predict the effects of dust and SFH on color. This comparison demonstrates the quantitative consistency of these simple models with the data and hints at the power of multiwavelength data for constraining these models. The UV color is a strong constraint; we find that a Milky Way extinction curve is disfavored, and that the UV emission of galaxies with large 4000 \u00c5 break strengths is likely to arise from evolved populations. We perform fits to the relation between SFH, attenuation, and color. This relation links the production of starlight and its absorption by dust to the subsequent reemission of the absorbed light in the IR. Galaxy models that self-consistently treat dust absorption and emission as well as stellar populations will need to reproduce these fitted relations in the low-redshift universe.", "date": "2007-12", "date_type": "published", "publication": "Astrophysical Journal Supplement Series", "volume": "173", "number": "2", "publisher": "American Astronomical Society", "pagerange": "377-391", "id_number": "CaltechAUTHORS:20100917-094457903", "issn": "0067-0049", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20100917-094457903", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA Graduate Student Research Fellowship", "grant_number": "NNG-05GO43H" } ] }, "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" }, { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1086/522932", "primary_object": { "basename": "JOHapjss07a.pdf", "url": "https://authors.library.caltech.edu/records/edv3h-2c472/files/JOHapjss07a.pdf" }, "resource_type": "article", "pub_year": "2007", "author_list": "Johnson, Benjamin D.; Schiminovich, David; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/bd25f-z8615", "eprint_id": 17555, "eprint_status": "archive", "datestamp": "2023-08-22 10:29:05", "lastmod": "2023-10-19 23:59:56", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Iglesias-P\u00e1ramo-J", "name": { "family": "Iglesias-P\u00e1ramo", "given": "J." } }, { "id": "Buat-V", "name": { "family": "Buat", "given": "V." } }, { "id": "Hern\u00e1ndez-Fern\u00e1ndez-J", "name": { "family": "Hern\u00e1ndez-Fern\u00e1ndez", "given": "J." } }, { "id": "Xu-C-Kevin", "name": { "family": "Xu", "given": "C. K." }, "orcid": "0000-0002-1588-6700" }, { "id": "Burgarella-D", "name": { "family": "Burgarella", "given": "D." } }, { "id": "Takeuchi-Tsutomu-T", "name": { "family": "Takeuchi", "given": "T. T." } }, { "id": "Boselli-A", "name": { "family": "Boselli", "given": "A." } }, { "id": "Shupe-David-L", "name": { "family": "Shupe", "given": "D." }, "orcid": "0000-0003-4401-0430" }, { "id": "Rowan-Robinson-M", "name": { "family": "Rowan-Robinson", "given": "M." } }, { "id": "Babbedge-T", "name": { "family": "Babbedge", "given": "T." } }, { "id": "Conrow-T", "name": { "family": "Conrow", "given": "T." } }, { "id": "Fang-Fan", "name": { "family": "Fang", "given": "F." } }, { "id": "Farrah-Duncan", "name": { "family": "Farrah", "given": "D." }, "orcid": "0000-0003-1748-2010" }, { "id": "Gonz\u00e1lez-Solares-E", "name": { "family": "Gonz\u00e1lez-Solares", "given": "E." } }, { "id": "Lonsdale-C-J", "name": { "family": "Lonsdale", "given": "C." }, "orcid": "0000-0003-0898-406X" }, { "id": "Smith-Gene", "name": { "family": "Smith", "given": "G." } }, { "id": "Surace-J-A", "name": { "family": "Surace", "given": "J." }, "orcid": "0000-0001-7291-0087" }, { "id": "Barlow-T-A", "name": { "family": "Barlow", "given": "T. A." } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "K." }, "orcid": "0000-0001-5800-5531" }, { "id": "Friedman-P-G", "name": { "family": "Friedman", "given": "P. G." } }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. C." }, "orcid": "0000-0002-8650-1644" }, { "id": "Morrissey-P", "name": { "family": "Morrissey", "given": "P." }, "orcid": "0000-0001-8177-1023" }, { "id": "Neff-S-G", "name": { "family": "Neff", "given": "S. G." } }, { "id": "Schiminovich-D", "name": { "family": "Schiminovich", "given": "D." } }, { "id": "Seibert-M", "name": { "family": "Seibert", "given": "M." }, "orcid": "0000-0002-1143-5515" }, { "id": "Small-T", "name": { "family": "Small", "given": "T." } }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "T. K." } }, { "id": "Bianchi-L", "name": { "family": "Bianchi", "given": "L." } }, { "id": "Donas-J", "name": { "family": "Donas", "given": "J." } }, { "id": "Heckman-T-M", "name": { "family": "Heckman", "given": "T. M." } }, { "id": "Lee-Young-Wook", "name": { "family": "Lee", "given": "Y.-W." } }, { "id": "Madore-B-F", "name": { "family": "Madore", "given": "B. F." }, "orcid": "0000-0002-1576-1676" }, { "id": "Milliard-B", "name": { "family": "Milliard", "given": "B." } }, { "id": "Rich-R-M", "name": { "family": "Rich", "given": "R. M." }, "orcid": "0000-0003-0427-8387" }, { "id": "Szalay-A-S", "name": { "family": "Szalay", "given": "A. S." } }, { "id": "Welsh-B-Y", "name": { "family": "Welsh", "given": "B. Y." } }, { "id": "Yi-Sukyoung-K", "name": { "family": "Yi", "given": "S. K." } } ] }, "title": "UV to IR SEDs of UV-Selected Galaxies in the ELAIS Fields: Evolution of Dust Attenuation and Star Formation Activity from z = 0.7 to 0.2", "ispublished": "pub", "full_text_status": "public", "keywords": "galaxies : evolution; surveys; ultraviolet : galaxies", "note": "\u00a9 2007 The American Astronomical Society.\nReceived 2007 February 28; accepted 2007 July 21.\nWe thank the anonymous referee for his/her interesting comments\nand suggestions that helped to improve the former version\nof this manuscript. Thanks are also given to Steve Donegan for\nhis careful reading and English revision of the text. This paper\nhas benefited from interesting discussions with G. L. Granato\nand L. Silva. GALEX (Galaxy Evolution Explorer) is a NASA Small\nExplorer, launched in 2003 April. We gratefully acknowledge\nNASA's support for the construction, operation, and science\nanalysis for the GALEX mission, developed in cooperation with\nthe Centre National d'Etudes Spatiales of France and the Korean\nMinistry of Science and Technology. Support for this work, part\nof the Spitzer Space Telescope Legacy Science Program, was\nprovided by NASA through an award issued by JPL under\nNASA contract 1407. This article is based on observations made\nwith the Isaac Newton Telescope, operated on the island of La\nPalma by the Isaac Newton Group at the Spanish Observatorio\nde El Roque de los Muchachos. This work has been partially\nfunded by the projects AYA 2004-08260-C03-02 of the Spanish\nPNAYA and TIC114 of the Junta de Andaluc\u0131\u00b4a. T. T. T. has been\nsupported by Program for Improvement of Research Environment\nfor Young Researchers from Special Coordination Funds\nfor Promoting Science and Technology (SCF) commissioned by\nthe Ministry of Education, Culture, Sports, Science, and Technology\n(MEXT) of Japan.\n\nPublished - IGLapj07.pdf
", "abstract": "We study the ultraviolet to far-infrared (hereafter UV-to-IR) SEDs of a sample of intermediate-redshift (0.2 \u2264 z \u2264 0.7) UV-selected galaxies from the ELAIS N1 and ELAIS N2 fields by fitting a multi-wavelength data set to a library of GRASIL templates. Star formation related properties of the galaxies are derived from the library of models by using Bayesian statistics. We find a decreasing presence of galaxies with low attenuation and low total luminosity as redshift decreases, which does not hold for high total luminosity galaxies. In addition, the dust attenuation of low-mass galaxies increases as redshift decreases, and this trend seems to disappear for galaxies with M_* \u2265 10^(11) M_\u2299. This result is consistent with a mass-dependent evolution of the dust-to-gas ratio, which could be driven by a mass-dependent efficiency of star formation in star-forming galaxies. The specific star formation rates (SSFR) decrease with increasing stellar mass at all redshifts, and for a given stellar mass the SSFR decreases with decreasing redshift. The differences in the slope of the M^*-SSFR relation found between this work and others at similar redshift could be explained by the adopted selection criteria of the samples, which for a UV-selected sample, favors blue, star-forming galaxies.", "date": "2007-11-20", "date_type": "published", "publication": "Astrophysical Journal", "volume": "670", "number": "1", "publisher": "American Astronomical Society", "pagerange": "279-294", "id_number": "CaltechAUTHORS:20100222-135706376", "issn": "0004-637X", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20100222-135706376", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "Plan Nacional de Astronom\u00eda y Astrof\u00edsica", "grant_number": "AYA 2004-08260-C03-02" }, { "agency": "Junta de Andaluc\u0131a", "grant_number": "TIC114" }, { "agency": "Ministry of Education, Culture, Sports, Science and Technology (MEXT)" } ] }, "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" }, { "id": "Space-Astrophysics-Laboratory" }, { "id": "Infrared-Processing-and-Analysis-Center-(IPAC)" } ] }, "doi": "10.1086/521867", "primary_object": { "basename": "IGLapj07.pdf", "url": "https://authors.library.caltech.edu/records/bd25f-z8615/files/IGLapj07.pdf" }, "resource_type": "article", "pub_year": "2007", "author_list": "Iglesias-P\u00e1ramo, J.; Buat, V.; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/xcv6q-j4v13", "eprint_id": 16705, "eprint_status": "archive", "datestamp": "2023-08-22 09:52:16", "lastmod": "2023-10-19 22:29:53", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Zamojski-M-A", "name": { "family": "Zamojski", "given": "M. A." } }, { "id": "Schiminovich-D", "name": { "family": "Schiminovich", "given": "D." } }, { "id": "Rich-R-M", "name": { "family": "Rich", "given": "R. M." }, "orcid": "0000-0003-0427-8387" }, { "id": "Mobasher-B", "name": { "family": "Mobasher", "given": "B." } }, { "id": "Koekemoer-A-M", "name": { "family": "Koekemoer", "given": "A. M." }, "orcid": "0000-0002-6610-2048" }, { "id": "Capak-P", "name": { "family": "Capak", "given": "P." }, "orcid": "0000-0003-3578-6843" }, { "id": "Taniguchi-Yoshiaki", "name": { "family": "Taniguchi", "given": "Y." }, "orcid": "0000-0003-2247-3741" }, { "id": "Sasaki-S-S", "name": { "family": "Sasaki", "given": "S. S." } }, { "id": "McCracken-H-J", "name": { "family": "McCracken", "given": "H. J." }, "orcid": "0000-0002-9489-7765" }, { "id": "Mellier-Y", "name": { "family": "Mellier", "given": "Y." } }, { "id": "Bertin-E", "name": { "family": "Bertin", "given": "E." } }, { "id": "Aussel-Herve", "name": { "family": "Aussel", "given": "H." }, "orcid": "0000-0002-1371-5705" }, { "id": "Sanders-D-B", "name": { "family": "Sanders", "given": "D. B." }, "orcid": "0000-0002-1233-9998" }, { "id": "Le-F\u00e8vre-O", "name": { "family": "Le F\u00e8vre", "given": "O." }, "orcid": "0000-0001-5891-2596" }, { "id": "Ilbert-Olivier", "name": { "family": "Ilbert", "given": "O." }, "orcid": "0000-0002-7303-4397" }, { "id": "Salvato-Mara", "name": { "family": "Salvato", "given": "M." }, "orcid": "0000-0001-7116-9303" }, { "id": "Thompson-D-J", "name": { "family": "Thompson", "given": "D. J." } }, { "id": "Kartaltepe-J", "name": { "family": "Kartaltepe", "given": "J. S." }, "orcid": "0000-0001-9187-3605" }, { "id": "Scoville-N-Z", "name": { "family": "Scoville", "given": "N." }, "orcid": "0000-0002-0438-3323" }, { "id": "Barlow-T-A", "name": { "family": "Barlow", "given": "T. A." } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "K." }, "orcid": "0000-0001-5800-5531" }, { "id": "Friedman-P-G", "name": { "family": "Friedman", "given": "P. G." } }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. C." }, "orcid": "0000-0002-8650-1644" }, { "id": "Morrissey-P", "name": { "family": "Morrissey", "given": "P." }, "orcid": "0000-0001-8177-1023" }, { "id": "Neff-S-G", "name": { "family": "Neff", "given": "S G." } }, { "id": "Seibert-M", "name": { "family": "Seibert", "given": "M." }, "orcid": "0000-0002-1143-5515" }, { "id": "Small-T", "name": { "family": "Small", "given": "T." } }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "T. K." } }, { "id": "Bianchi-L", "name": { "family": "Bianchi", "given": "L." } }, { "id": "Donas-J", "name": { "family": "Donas", "given": "J." } }, { "id": "Heckman-T-M", "name": { "family": "Heckman", "given": "T. M." } }, { "id": "Lee-Young-Wook", "name": { "family": "Lee", "given": "Y.-W." } }, { "id": "Madore-B-F", "name": { "family": "Madore", "given": "B. F." }, "orcid": "0000-0002-1576-1676" }, { "id": "Milliard-B", "name": { "family": "Milliard", "given": "B." } }, { "id": "Szalay-A-S", "name": { "family": "Szalay", "given": "A. S." } }, { "id": "Welsh-B-Y", "name": { "family": "Welsh", "given": "B. Y." } }, { "id": "Yi-Sukyoung-K", "name": { "family": "Yi", "given": "S. K." } } ] }, "title": "Deep GALEX Imaging of the COSMOS HST Field: A First Look at the Morphology of z ~ 0.7 Star-forming Galaxies", "ispublished": "pub", "full_text_status": "public", "keywords": "galaxies: evolution; galaxies: fundamental parameters; surveys", "note": "\u00a9 2009 American Astronomical Society. \n\nReceived 2006 July 28; accepted 2007 January 9. \n\nThe COSMOS HST Treasury program was supported through NASA grant HST-GO-09822. We wish to thank Tony Roman, Denise Taylor, and David Soderblom for their assistance in planning and scheduling of the extensive COSMOS observations. We gratefully acknowledge the contributions of the entire COSMOS collaboration consisting of more than 70 scientists. More information on the COSMOS survey is available at http://www.astro.caltech.edu/~cosmos. It is a pleasure to acknowledge the excellent services provided by the NASA IPAC/IRSA staff (Anastasia Laity, Anastasia Alexov, Bruce Berriman, and John Good) in providing online archive and server capabilities for the COSMOS data sets. The COSMOS Science meeting in 2005 May was supported in part by the NSF through grant OISE-0456439.\n\n GALEX (Galaxy Evolution Explorer) is a NASA Small Explorer, launched in 2003 April. We gratefully acknowledge NASA's support for construction, operation, and science analysis for the GALEX mission, developed in cooperation with the Centre National d'Etudes Spatiales of France and the Korean Ministry of Science and Technology. \n\nFacilities: HST(ACS), GALEX, Subaru, CFHT, KPNO:2.1m, CTIO:1.5m \n\nBased on observations with the NASA/ESA Hubble Space Telescope, obtained at the Space Telescope Science Institute, which is operated by Association of Universities for Research in Astronomy, Inc. (AURA), under NASA contract NAS 5-26555; and with the NASA Galaxy Evolution Explorer (GALEX); also based on data collected at the Subaru Telescope, which is operated by the National Astronomical Observatory of Japan; Kitt Peak National Observatory, Cerro Tololo Inter-American Observatory, and the National Optical Astronomy Observatory, which are operated by the Association of Universities for Research in Astronomy, Inc. (AURA), under cooperative agreement with the National Science Foundation; the Canada-France-Hawaii Telescope with MegaPrime/MegaCam operated as a joint project by the CFHT Corporation, CEA/DAPNIA, the National Research Council of Canada, the Canadian Astronomy Data Centre, the Centre National de la Recherche Scientifique de France, TERAPIX, and the University of Hawaii.\n\nPublished - ZAMapjss07.pdf
", "abstract": "We present a study of the morphological nature of redshift z ~ 0.7 star-forming galaxies using a combination of HST ACS, GALEX, and ground-based images of the COSMOS field. Our sample consists of 8146 galaxies, 5777 of which are detected in the GALEX near-ultraviolet band (2310 \u00c5 or ~1360 \u00c5 rest frame) down to a limiting magnitude of 25.5 (AB), and all of which have a brightness of F814W(HST) < 23 mag and photometric redshifts in the range 0.55 < z < 0.8. We make use of the UV to estimate star formation rates, correcting for the effect of dust using the UV slope, and of the ground-based multiband data to calculate masses. For all galaxies in our sample, we compute, from the ACS F814W images, their concentration (C), asymmetry (A), and clumpiness (S), as well as their Gini coefficient (G) and the second moment of the brightest 20% of their light (M_20). We observe a bimodality in the galaxy population in asymmetry and in clumpiness, although the separation is most evident when either of those parameters is combined with a concentration-like parameter (C, G, or M_20). We further show that this morphological bimodality has a strong correspondence with the FUV-g color bimodality and conclude that UV-optical color predominantly evolves concurrently with morphology. We observe many of the most star-forming galaxies to have morphologies approaching that of early-type galaxies, and we interpret this as evidence that strong starburst events are linked to bulge growth and constitute a process through which galaxies can be brought from the blue to the red sequence while simultaneously modifying their morphology accordingly. We conclude that the red sequence has continued growing at z \u2272 0.7. We also observe z ~ 0.7 galaxies to have physical properties similar to that of local galaxies, except for higher star formation rates. Whence we infer that the dimming of star-forming galaxies is responsible for most of the evolution in star formation rate density since that redshift, although our data are also consistent with a mild number evolution.", "date": "2007-09", "date_type": "published", "publication": "Astrophysical Journal Supplement Series", "volume": "172", "number": "1", "publisher": "American Astronomical Society", "pagerange": "468-493", "id_number": "CaltechAUTHORS:20091113-115202257", "issn": "0067-0049", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20091113-115202257", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA", "grant_number": "HST-GO-09822" }, { "agency": "NSF", "grant_number": "OISE-0456439" }, { "agency": "NASA", "grant_number": "NAS 5-26555" } ] }, "local_group": { "items": [ { "id": "COSMOS" }, { "id": "Space-Astrophysics-Laboratory" }, { "id": "Infrared-Processing-and-Analysis-Center-(IPAC)" } ] }, "doi": "10.1086/516593", "primary_object": { "basename": "ZAMapjss07.pdf", "url": "https://authors.library.caltech.edu/records/xcv6q-j4v13/files/ZAMapjss07.pdf" }, "resource_type": "article", "pub_year": "2007", "author_list": "Zamojski, M. A.; Schiminovich, D.; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/gvtj3-qnk05", "eprint_id": 55875, "eprint_status": "archive", "datestamp": "2023-08-19 20:46:44", "lastmod": "2023-10-20 23:21:13", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Seibert-M", "name": { "family": "Seibert", "given": "Mark" }, "orcid": "0000-0002-1143-5515" }, { "id": "Neill-J-D", "name": { "family": "Neill", "given": "James D." }, "orcid": "0000-0002-0466-1119" }, { "id": "Schiminovich-D", "name": { "family": "Schiminovich", "given": "David" } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Rich-R-M", "name": { "family": "Rich", "given": "R. Michael" }, "orcid": "0000-0003-0427-8387" }, { "id": "Welsh-B-Y", "name": { "family": "Welsh", "given": "Barry Y." } }, { "id": "Madore-B-F", "name": { "family": "Madore", "given": "Barry F." }, "orcid": "0000-0002-1576-1676" }, { "id": "Wheatley-J-M", "name": { "family": "Wheatley", "given": "Jonathan M." } }, { "id": "Morrissey-P", "name": { "family": "Morrissey", "given": "Patrick" }, "orcid": "0000-0001-8177-1023" }, { "id": "Barlow-T-A", "name": { "family": "Barlow", "given": "Tom A." } } ] }, "title": "A turbulent wake as a tracer of 30,000 years of Mira's mass loss history", "ispublished": "pub", "full_text_status": "public", "note": "\u00a9 2007 Macmillan Publishers Limited. \n\nReceived 30 March; accepted 11 June 2007.\n\nWe thank B. Cenko, S. Browne, S. Kulkarni and F. Harrison for assistance in obtaining optical data, and M. Shara and P. Szkody for comments. This work was supported by the National Aeronautics and Space Administration.\n\nSupplemental Material - nature06003-s1.pdf
", "abstract": "Mira is one of the first variable stars ever discovered and it is the prototype (and also the nearest example) of a class of low-to-intermediate-mass stars in the late stages of stellar evolution. These stars are relatively common and they return a large fraction of their original mass to the interstellar medium (ISM) (ref. 2) through a processed, dusty, molecular wind. Thus stars in Mira's stage of evolution have a direct impact on subsequent star and planet formation in their host galaxy. Previously, the only direct observation of the interaction between Mira-type stellar winds and the ISM was in the infrared. Here we report the discovery of an ultraviolet-emitting bow shock and turbulent wake extending over 2 degrees on the sky, arising from Mira's large space velocity and the interaction between its wind and the ISM. The wake is visible only in the far ultraviolet and is consistent with an unusual emission mechanism whereby molecular hydrogen is excited by turbulent mixing of cool molecular gas and shock-heated gas. This wind wake is a tracer of the past 30,000 years of Mira's mass-loss history and provides an excellent laboratory for studying turbulent stellar wind\u2013ISM interactions.", "date": "2007-08-16", "date_type": "published", "publication": "Nature", "volume": "448", "number": "7155", "publisher": "Nature Publishing Group", "pagerange": "780-783", "id_number": "CaltechAUTHORS:20150318-084131649", "issn": "0028-0836", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20150318-084131649", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA" } ] }, "local_group": { "items": [ { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1038/nature06003", "primary_object": { "basename": "nature06003-s1.pdf", "url": "https://authors.library.caltech.edu/records/gvtj3-qnk05/files/nature06003-s1.pdf" }, "resource_type": "article", "pub_year": "2007", "author_list": "Martin, D. Christopher; Seibert, Mark; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/6zyf7-2y325", "eprint_id": 16728, "eprint_status": "archive", "datestamp": "2023-08-22 09:05:39", "lastmod": "2023-10-19 22:30:56", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Gil-de-Paz-A", "name": { "family": "Gil de Paz", "given": "Armando" }, "orcid": "0000-0001-6150-2854" }, { "id": "Madore-B-F", "name": { "family": "Madore", "given": "Barry F." }, "orcid": "0000-0002-1576-1676" }, { "id": "Boissier-S", "name": { "family": "Boissier", "given": "Samuel" }, "orcid": "0000-0002-9091-2366" }, { "id": "Thilker-D", "name": { "family": "Thilker", "given": "David" } }, { "id": "Bianchi-L", "name": { "family": "Bianchi", "given": "Luciana" } }, { "id": "S\u00e1nchez-Contreras-C", "name": { "family": "S\u00e1nchez Contreras", "given": "Carmen" } }, { "id": "Barlow-T-A", "name": { "family": "Barlow", "given": "Tom A." } }, { "id": "Conrow-T", "name": { "family": "Conrow", "given": "Tim" } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Friedman-P-G", "name": { "family": "Friedman", "given": "Peter G." } }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Morrissey-P", "name": { "family": "Morrissey", "given": "Patrick" }, "orcid": "0000-0001-8177-1023" }, { "id": "Neff-S-G", "name": { "family": "Neff", "given": "Susan G." } }, { "id": "Rich-R-M", "name": { "family": "Rich", "given": "R. Michael" }, "orcid": "0000-0003-0427-8387" }, { "id": "Schiminovich-D", "name": { "family": "Schiminovich", "given": "David" } }, { "id": "Seibert-M", "name": { "family": "Seibert", "given": "Mark" }, "orcid": "0000-0002-1143-5515" }, { "id": "Small-T", "name": { "family": "Small", "given": "Todd" } }, { "id": "Donas-J", "name": { "family": "Donas", "given": "Jos\u00e9" } }, { "id": "Heckman-T-M", "name": { "family": "Heckman", "given": "Timothy M." } }, { "id": "Lee-Young-Wook", "name": { "family": "Lee", "given": "Young-Wook" } }, { "id": "Milliard-B", "name": { "family": "Milliard", "given": "Bruno" } }, { "id": "Szalay-A-S", "name": { "family": "Szalay", "given": "Alex S." } }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted K." } }, { "id": "Yi-Sukyoung-K", "name": { "family": "Yi", "given": "Sukyoung" } } ] }, "title": "Chemical and Photometric Evolution of Extended Ultraviolet Disks: Optical Spectroscopy of M83 (NGC 5236) and NGC 4625", "ispublished": "pub", "full_text_status": "public", "keywords": "galaxies : abundances; galaxies : evolution; H ii regions; techniques : spectroscopic; ultraviolet : galaxies", "note": "\u00a9 2007 The American Astronomical Society.\nReceived 2006 July 28; accepted 2007 February 11.\nGALEX (Galaxy Evolution Explorer) is a NASA Small Explorer,\nlaunched in 2003 April. We gratefully acknowledge\nNASA's support for construction, operation, and science analysis\nfor the GALEX mission, developed in cooperation with the\nCentre National d'Etudes Spatiales of France and the Korean\nMinistry of Science and Technology. We thank the anonymous\nreferee for his/her constructive comments that have considerably\nimproved the content of the paper. A. G. d. P. is financed by the\nMAGPOP EU Marie Curie Research Training Network and partially\nby the Spanish Programa Nacional de Astronom\u0131\u00b4a y Astrof\u0131sica under grant AYA2003-01676. We thank Judith Cohen\nfor kindly providing her H\u03b1 filter for COSMIC. We are also\nthankful to Sergio Gonzalez and Wojtek Krzeminski for carrying\nout the imaging observations at the Las Campanas 40 inch\ntelescope.\n\n\nFacilities: GALEX, Magellan:Baade (IMACS), Hale (COSMIC),\nSwope (Direct CCD).\n\nPublished - PAZapj07.pdf
", "abstract": "We present the results from the analysis of optical spectra of 31 H\u03b1-selected regions in the extended UV (XUV) disks of M83 (NGC 5236) and NGC 4625 recently discovered by GALEX. The spectra were obtained using IMACS at the Las Campanas Observatory 6.5 m Magellan I telescope and COSMIC at the Palomar 200 inch (5 m) telescope, respectively, for M83 and NGC 4625. The line ratios measured indicate nebular oxygen abundances (derived from the R23 parameter) of the order of Z_\u2299/5-Z_\u2299/10. For most emission-line regions analyzed the line fluxes and ratios measured are best reproduced by models of photoionization by single stars with masses in the range 20-40 M_\u2299 and oxygen abundances comparable to those derived from the R23 parameter. We find indications for a relatively high N/O abundance ratio in the XUV disk of M83. Although the metallicities derived imply that these are not the first stars formed in the XUV disks, such a level of enrichment could be reached in young spiral disks only 1 Gyr after these first stars would have formed. The amount of gas in the XUV disks allows maintaining the current level of star formation for at least a few Gyr.", "date": "2007-05-20", "date_type": "published", "publication": "Astrophysical Journal", "volume": "661", "number": "1", "publisher": "American Astronomical Society", "pagerange": "115-134", "id_number": "CaltechAUTHORS:20091117-105737404", "issn": "0004-637X", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20091117-105737404", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "Marie Curie Fellowship" }, { "agency": "Programa Nacional de Astronom\u00eda y Astrof\u0131sica", "grant_number": "AYA2003-01676" } ] }, "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" }, { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1086/513730", "primary_object": { "basename": "PAZapj07.pdf", "url": "https://authors.library.caltech.edu/records/6zyf7-2y325/files/PAZapj07.pdf" }, "resource_type": "article", "pub_year": "2007", "author_list": "Gil de Paz, Armando; Madore, Barry F.; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/t07nv-vw254", "eprint_id": 13695, "eprint_status": "archive", "datestamp": "2023-08-22 07:48:55", "lastmod": "2023-10-18 00:05:14", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Gezari-S", "name": { "family": "Gezari", "given": "S." }, "orcid": "0000-0003-3703-5154" }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. C." }, "orcid": "0000-0002-8650-1644" }, { "id": "Milliard-B", "name": { "family": "Milliard", "given": "B." } }, { "id": "Basa-S", "name": { "family": "Basa", "given": "S." } }, { "id": "Halpern-J-P", "name": { "family": "Halpern", "given": "J. P." } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "K." }, "orcid": "0000-0001-5800-5531" }, { "id": "Friedman-P-G", "name": { "family": "Friedman", "given": "P. G." } }, { "id": "Morrissey-P", "name": { "family": "Morrissey", "given": "P." }, "orcid": "0000-0001-8177-1023" }, { "id": "Neff-S-G", "name": { "family": "Neff", "given": "S. G." } }, { "id": "Schiminovich-D", "name": { "family": "Schiminovich", "given": "D." } }, { "id": "Seibert-M", "name": { "family": "Seibert", "given": "M." }, "orcid": "0000-0002-1143-5515" }, { "id": "Small-T", "name": { "family": "Small", "given": "T." } }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "T. K." } } ] }, "title": "Ultraviolet detection of the tidal disruption of a star by a supermassive black hole", "ispublished": "pub", "full_text_status": "public", "keywords": "galaxies: nuclei; ultraviolet: galaxies", "note": "\u00a9 2006 The American Astronomical Society.\nReceived 2006 August 24; accepted 2006 October 6; published 2006 December 1.\nWe thank the anonymous referee for helpful comments, including\nthe suggestion to add a discussion of the radius of the\nflare emission. We thank C. L. Slesnick for carrying out our\ntarget-of-opportunity observation with the Double Spectrograph\non the Palomar 200 inch telescope, V. Villar for the two dimensional\nbulge/disk composition of the AEGIS HST ACS\nimage, and S. M. Moran for measurement of the stellar velocity\ndispersion of the AEGIS DEEP2 DEIMOS spectrum. S. G. was\nsupported in part by the Volontariat International-CNES of\nFrance, and through Chandra Grant Award G06-7099X issued\nby the Chandra X-ray Observatory, which is operated by the\nSAO for and on behalf of NASA. We gratefully acknowledge\nNASA's support for construction, operation, and science analysis\nfor the GALEX mission, developed in cooperation with\nCNES and the Korean Ministry of Science and Technology.\nThe AEGIS collaboration acknowledges support from the\nNASA/ESA HST grant GO-10134 for the Extended Groth Strip\nobservations, obtained at STScI, which is operated by AURA,\nInc., under a NASA contract. The AEGIS collaboration also\nacknowledges support from the NSF grant AST 05-07483 for\nthe DEEP2 survey observations with DEIMOS at the W. M.\nKeck Observatory. This work is based on observations obtained\nwith MegaPrime/MegaCam, a joint project of CFHT and CEA/\nDAPNIA, at the CFHT which is operated by the NRC of Canada,\nthe CNRS of France, and the University of Hawaii. This\nwork is also based in part on data products produced at TERAPIX\nand the Canadian Astronomy Data Centre as part of the\nCFHT Legacy Survey, a collaborative project of NRC and\nCNRS.\n\nPublished - GEZapjl06.pdf
", "abstract": "A supermassive black hole in the nucleus of a galaxy will be revealed when a star passes close enough to be torn apart by tidal forces and a flare of radiation is emitted by the stream of stellar debris that plunges into the black hole. Since common active galactic nuclei have accreting black holes that can also produce flares, a convincing demonstration that a stellar tidal disruption has occurred generally begins with a \"normal\" galaxy that has no evidence of prior nuclear activity. Here we,report a luminous UV flare from an elliptical galaxy at z=0.37 in the Groth field of the GALEX Deep Imaging Survey that has no evidence of a Seyfert nucleus from optical spectroscopy and X-ray imaging obtained during the flare. Multiwavelength data collected at the time of the event, and for 2 years following, allow us to constrain, for the first time, the spectral energy distribution of a candidate tidal disruption flare from optical through X-rays. The luminosity and temperature of the radiation and the decay curve of the flare are in excellent agreement with theoretical predictions for the tidal disruption of a star, and provide the strongest empirical evidence for a stellar disruption event to date.", "date": "2006-12-10", "date_type": "published", "publication": "Astrophysical Journal", "volume": "653", "number": "1", "publisher": "American Astronomical Society", "pagerange": "L25-L28", "id_number": "CaltechAUTHORS:GEZapjl06", "issn": "0004-637X", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:GEZapjl06", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA/European Space Agency Hubble Space Telescope", "grant_number": "GO-10134" }, { "agency": "NSF", "grant_number": "AST 05-07483" }, { "agency": "Chandra grant award", "grant_number": "G06-7099X" }, { "agency": "Volontariat International-CNES" } ] }, "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" }, { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1086/509918", "primary_object": { "basename": "GEZapjl06.pdf", "url": "https://authors.library.caltech.edu/records/t07nv-vw254/files/GEZapjl06.pdf" }, "resource_type": "article", "pub_year": "2006", "author_list": "Gezari, S.; Martin, D. C.; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/2173j-t6j63", "eprint_id": 56222, "eprint_status": "archive", "datestamp": "2023-08-19 18:28:05", "lastmod": "2023-10-23 15:10:58", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Schawinski-K", "name": { "family": "Schawinski", "given": "Kevin" }, "orcid": "0000-0001-5464-0888" }, { "id": "Khochfar-S", "name": { "family": "Khochfar", "given": "Sadegh" } }, { "id": "Kaviraj-Sugata", "name": { "family": "Kaviraj", "given": "Sugata" } }, { "id": "Yi-Sukyoung-K", "name": { "family": "Yi", "given": "Sukyoung K." } }, { "id": "Boselli-A", "name": { "family": "Boselli", "given": "Alessandro" } }, { "id": "Barlow-T-A", "name": { "family": "Barlow", "given": "Tom A." } }, { "id": "Conrow-T", "name": { "family": "Conrow", "given": "Tim" } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Friedman-P-G", "name": { "family": "Friedman", "given": "Peter G." } }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Morrissey-P", "name": { "family": "Morrissey", "given": "Patrick" }, "orcid": "0000-0001-8177-1023" }, { "id": "Neff-S-G", "name": { "family": "Neff", "given": "Susan G." } }, { "id": "Schiminovich-D", "name": { "family": "Schiminovich", "given": "David" } }, { "id": "Seibert-M", "name": { "family": "Seibert", "given": "Mark" }, "orcid": "0000-0002-1143-5515" }, { "id": "Small-T-A", "name": { "family": "Small", "given": "Todd" } }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted K." } }, { "id": "Bianchi-L-C", "name": { "family": "Bianchi", "given": "Luciana" }, "orcid": "0000-0001-7746-5461" }, { "id": "Donas-J", "name": { "family": "Donas", "given": "Jos\u00e9" } }, { "id": "Heckman-T-M", "name": { "family": "Heckman", "given": "Tim" } }, { "id": "Lee-Young-Wook", "name": { "family": "Lee", "given": "Young-Wook" } }, { "id": "Madore-B-F", "name": { "family": "Madore", "given": "Barry F." }, "orcid": "0000-0002-1576-1676" }, { "id": "Milliard-B", "name": { "family": "Milliard", "given": "Bruno" } }, { "id": "Rich-R-M", "name": { "family": "Rich", "given": "R. Michael" }, "orcid": "0000-0003-0427-8387" }, { "id": "Szalay-A-S", "name": { "family": "Szalay", "given": "Alex S." } } ] }, "title": "Suppression of star formation in early-type galaxies by feedback from supermassive black holes", "ispublished": "pub", "full_text_status": "public", "note": "\u00a9 2006 Nature Publishing Group.\n\nReceived 15 December 2005; accepted 15 May 2006.\n\nWe thank J. Magorrian for discussions and comments. GALEX is a NASA Small Explorer, launched in April 2003. We acknowledge NASA's support for construction, operation, and science analysis for the GALEX mission, developed in cooperation with the Centre National d'\u00c9tudes Spatiales of France and the Korean Ministry of Science and Technology. This work was supported by the Basic Research Program of the Korea Science & Engineering Foundation (S.K.Y.). Author Contributions K.S., S. Khochfar, S. Kaviraj and S.K.Y. performed the data sampling, analysis, interpretation, model construction, and writing of the manuscript. A.B. supplied the Virgo galaxy data, and the rest of the authors contributed to the data acquisition using the GALEX satellite.\n\nSupplemental Material - nature04934-s1.pdf
", "abstract": "Detailed high-resolution observations of the innermost regions of nearby galaxies have revealed the presence of supermassive black holes. These black holes may interact with their host galaxies by means of 'feedback' in the form of energy and material jets; this feedback affects the evolution of the host and gives rise to observed relations between the black hole and the host. Here we report observations of the ultraviolet emissions of massive early-type galaxies. We derive an empirical relation for a critical black-hole mass (as a function of velocity dispersion) above which the outflows from these black holes suppress star formation in their hosts by heating and expelling all available cold gas. Supermassive black holes are negligible in mass compared to their hosts but nevertheless seem to play a critical role in the star formation history of galaxies.", "date": "2006-08-24", "date_type": "published", "publication": "Nature", "volume": "442", "number": "7105", "publisher": "Nature Publishing Group", "pagerange": "888-891", "id_number": "CaltechAUTHORS:20150330-162345264", "issn": "0028-0836", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20150330-162345264", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "Korea Science and Engineering Foundation" } ] }, "local_group": { "items": [ { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1038/nature04934", "primary_object": { "basename": "nature04934-s1.pdf", "url": "https://authors.library.caltech.edu/records/2173j-t6j63/files/nature04934-s1.pdf" }, "resource_type": "article", "pub_year": "2006", "author_list": "Schawinski, Kevin; Khochfar, Sadegh; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/g4yz9-9d833", "eprint_id": 24033, "eprint_status": "archive", "datestamp": "2023-08-22 06:16:33", "lastmod": "2023-10-23 20:15:46", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Xu-C-Kevin", "name": { "family": "Xu", "given": "Kevin C." }, "orcid": "0000-0002-1588-6700" }, { "id": "Barlow-T-A", "name": { "family": "Barlow", "given": "Tom A." } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Friedman-P-G", "name": { "family": "Friedman", "given": "Peter G." } }, { "id": "Madore-B-F", "name": { "family": "Madore", "given": "Barry F." }, "orcid": "0000-0002-1576-1676" }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Morrissey-P", "name": { "family": "Morrissey", "given": "Patrick" }, "orcid": "0000-0001-8177-1023" }, { "id": "Schiminovich-D", "name": { "family": "Schiminovich", "given": "David" } }, { "id": "Small-T", "name": { "family": "Small", "given": "Todd" } }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted K." } } ] }, "title": "Ultraviolet and Far-Infrared-selected Star-forming Galaxies at z = 0: Differences and Overlaps", "ispublished": "pub", "full_text_status": "public", "keywords": "dust: extinction; galaxies: active; galaxies: luminosity function, mass function; galaxies: starburst; infrared: galaxies; stars: formation; ultraviolet: galaxies", "note": "\u00a9 2006 The American Astronomical Society. Received 2005 December 22; accepted 2006 April 3. GALEX (Galaxy Evolution Explorer) is a NASA Small Explorer, launched in 2003 April. We gratefully acknowledge NASA's support for construction, operation, and science analysis for the GALEX mission, developed in cooperation with the Centre National d'Etudes Spatiales of France and the South Korean Ministry\nof Science and Technology. We thank an anonymous referee for\nvery constructive comments. This research has made use of the NASA/IPAC Extragalactic Database (NED), which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration.\n\nPublished - XUCapj06.pdf
", "abstract": "We study two samples of local galaxies, one UV (GALEX) selected and the other FIR (IRAS) selected, to address the question of whether UV and FIR surveys see two sides (\"bright\" and \"dark\") of the star formation of the same population of galaxies or two different populations of star-forming galaxies. No significant difference between the L_(tot) (=L_(60) + L_(FUV)) luminosity functions of the UV and FIR samples is found. In addition, after the correction for the \"Malmquist bias\" (bias for flux-limited samples), the FIR-to-UV ratio versus L_(tot) relations of the two samples are consistent with each other. In the range of 9 \u227e log(L_(tot)/L_\u2299) \u227e 12, both can be approximated by a simple linear relation of log(L_(60)/L_(FUV)) = log(L_(tot)/L_\u2299) - 9.66. These are consistent with the hypothesis that the two samples represent the same population of star-forming galaxies, and their well-documented differences in L_(tot) and in FIR-to-UV ratio are due only to the selection effect. A comparison between the UV luminosity functions shows marginal evidence for a population of faint UV galaxies missing in the FIR-selected sample. The contribution from these \"FIR-quiet\" galaxies to the overall UV population is insignificant, given that the K-band luminosity functions (i.e., the stellar mass functions) of the two samples do not show any significant difference.", "date": "2006-08-01", "date_type": "published", "publication": "Astrophysical Journal", "volume": "646", "number": "2", "publisher": "American Astronomical Society", "pagerange": "834-840", "id_number": "CaltechAUTHORS:20110616-113836578", "issn": "0004-637X", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20110616-113836578", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA" } ] }, "local_group": { "items": [ { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1086/504974", "primary_object": { "basename": "XUCapj06.pdf", "url": "https://authors.library.caltech.edu/records/g4yz9-9d833/files/XUCapj06.pdf" }, "resource_type": "article", "pub_year": "2006", "author_list": "Xu, Kevin C.; Barlow, Tom A.; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/40bgq-pvn75", "eprint_id": 97283, "eprint_status": "archive", "datestamp": "2023-08-19 18:07:26", "lastmod": "2024-01-14 21:50:11", "type": "book_section", "metadata_visibility": "show", "creators": { "items": [ { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Conrow-T", "name": { "family": "Conrow", "given": "Tim" } }, { "id": "Schiminovich-D", "name": { "family": "Schiminovich", "given": "David" } }, { "id": "Erickson-K-D", "name": { "family": "Erickson", "given": "Kerry D." } }, { "id": "McNeill-J-F-Jr", "name": { "family": "McNeill", "given": "Justin F., Jr." } }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "Chris" }, "orcid": "0000-0002-8650-1644" }, { "id": "Morais-M-E", "name": { "family": "Morais", "given": "Marco" } } ] }, "title": "The challenges of GALEX", "ispublished": "unpub", "full_text_status": "public", "keywords": "galaxies: evolution \u2013 space vehicles: instruments \u2013 surveys \u2013 telescopes \u2013 operations \u2013 ultraviolet: general", "note": "\u00a9 2006 Society of Photo-Optical Instrumentation Engineers (SPIE). \n\nThe authors gratefully acknowledge the support of NASA for construction, operation, and science analysis of the GALEX mission, developed in cooperation with the Centre National d'Etudes Spatiales of France and the Korean ministry of Science and Technology. We acknowledge the dedicated team of engineers, scientists, and administrative staff from Caltech/JPL/, Orbital Sciences Corporation, UC Berkeley, Laboratory Astrophysique Marseille, and other institutions that made this mission possible.\n\nPublished - 627004.pdf
", "abstract": "The Galaxy Evolution Explorer, a NASA small explorer mission, is performing the first all-sky, deep imaging and spectroscopic surveys in the space ultraviolet. The prime goal of GALEX is to study star formation in galaxies and its evolution with time. Now in its fourth year of operations the emphasis of the mission is changing from completing the primary science goals set at launch to servicing the astronomical community with a guest investigator program that uses 50% or more of the available observing time. We outline here mission operations, describe some of the challenges the GALEX team has surmounted, and some of the changes needed to accomplish the goals of the extended mission.", "date": "2006-06-29", "date_type": "published", "publisher": "Society of Photo-Optical Instrumentation Engineers (SPIE)", "place_of_pub": "Bellingham, WA", "pagerange": "Art. No. 627004", "id_number": "CaltechAUTHORS:20190719-083052751", "isbn": "9780819463357", "book_title": "Observatory Operations: Strategies, Processes, and Systems", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20190719-083052751", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "contributors": { "items": [ { "id": "Silva-D-R", "name": { "family": "Silva", "given": "David R." } }, { "id": "Doxsey-R-E", "name": { "family": "Doxsey", "given": "Rodger E." } } ] }, "doi": "10.1117/12.672397", "primary_object": { "basename": "627004.pdf", "url": "https://authors.library.caltech.edu/records/40bgq-pvn75/files/627004.pdf" }, "resource_type": "book_section", "pub_year": "2006", "author_list": "Forster, Karl; Conrow, Tim; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/vs31q-z8z81", "eprint_id": 23680, "eprint_status": "archive", "datestamp": "2023-08-22 05:37:01", "lastmod": "2023-10-23 19:51:27", "type": "article", "metadata_visibility": "show", "creators": { "items": [ { "id": "Iglesias-P\u00e1ramo-J", "name": { "family": "Iglesias-P\u00e1ramo", "given": "J." } }, { "id": "Xu-K", "name": { "family": "Xu", "given": "K." } }, { "id": "Barlow-T-A", "name": { "family": "Barlow", "given": "T. A." } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "K." }, "orcid": "0000-0001-5800-5531" }, { "id": "Friedman-P-G", "name": { "family": "Friedman", "given": "P. G." } }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "D. C." }, "orcid": "0000-0002-8650-1644" }, { "id": "Morrissey-P", "name": { "family": "Morrissey", "given": "P. F." }, "orcid": "0000-0001-8177-1023" }, { "id": "Schiminovich-D", "name": { "family": "Schiminovich", "given": "D." } }, { "id": "Seibert-M", "name": { "family": "Seibert", "given": "M." }, "orcid": "0000-0002-1143-5515" }, { "id": "Small-T", "name": { "family": "Small", "given": "T." } }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "T. K." } } ] }, "title": "Star Formation in the Nearby Universe: The Ultraviolet and Infrared Points of View", "ispublished": "pub", "full_text_status": "public", "keywords": "infrared: galaxies; surveys; ultraviolet: galaxies", "note": "\u00a9 2006 American Astronomical Society.\n\nReceived 2005 April 15; accepted 2006 January 10.\n\nGALEX is a NASA Small Explorer, launched in 2003 April.\nWe gratefully acknowledge NASA's support for the construction, operation, and science analysis for the GALEX mission, developed in cooperation with the Centre National d'Etudes Spatiales of France and the Korean Ministry of Science and Technology. This publication makes use of data products from the Two Micron All Sky Survey, which is a joint project of the University of Massachusetts and the Infrared Processing and Analysis Center/California Institute of Technology, funded by the National Aeronautics and Space Administration and the National Science Foundation. This research has made use of the NASA/IPAC Extragalactic Database (NED), which is operated by the Jet Propulsion Laboratory, California Institute of Technology,\nunder contract with the National Aeronautics and Space\nAdministration. The Lyon Extragalactic Database (LEDA) is\navailable at http://leda.univ-lyon1.fr. T. T. T. has been financially supported by the Japan Society for the Promotion of Science.\n\nPublished - IGLapjss06.pdf
", "abstract": "This work presents the main ultraviolet (UV) and far-infrared (FIR) properties of two samples of nearby galaxies selected from the GALEX (\u03bb = 2315 \u00c5, hereafter NUV) and IRAS (\u03bb = 60 \u03bcm) surveys, respectively. They are built in order to obtain detection at both wavelengths for most of the galaxies. Star formation rate (SFR) estimators based on the UV and FIR emissions are compared. Systematic differences are found between the SFR estimators for individual galaxies based on the NUV fluxes corrected for dust attenuation and on the total IR luminosity. A combined estimator based on NUV and IR luminosities seems to be the best proxy over the whole range of values of SFR. Although both samples present similar average values of the birthrate parameter b, their star-formation-related properties are substantially different: NUV-selected galaxies tend to show larger values of b for lower masses, SFRs, and dust attenuation, supporting previous scenarios of star formation history (SFH). Conversely, about 20% of the FIR-selected galaxies show high values of b, SFR, and NUV attenuation. These galaxies, most of them being LIRGs and ULIRGs, break down the downsizing picture of SFH; however, their relative contribution per unit volume is small in the local universe. Finally, the cosmic SFR density of the local universe is estimated in a consistent way from the NUV and IR luminosities.", "date": "2006-05", "date_type": "published", "publication": "Astrophysical Journal Supplement Series", "volume": "164", "number": "1", "publisher": "American Astronomical Society", "pagerange": "38-51", "id_number": "CaltechAUTHORS:20110516-141002586", "issn": "0067-0049", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20110516-141002586", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "Japan Society for the Promotion of Science (JSPS)" } ] }, "local_group": { "items": [ { "id": "Space-Radiation-Laboratory" }, { "id": "Space-Astrophysics-Laboratory" } ] }, "doi": "10.1086/502628", "primary_object": { "basename": "IGLapjss06.pdf", "url": "https://authors.library.caltech.edu/records/vs31q-z8z81/files/IGLapjss06.pdf" }, "resource_type": "article", "pub_year": "2006", "author_list": "Iglesias-P\u00e1ramo, J.; Xu, K.; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/ks2ed-qze19", "eprint_id": 88230, "eprint_status": "archive", "datestamp": "2023-08-19 14:28:07", "lastmod": "2024-01-14 20:30:18", "type": "book_section", "metadata_visibility": "show", "creators": { "items": [ { "id": "Siegmund-O-H-W", "name": { "family": "Siegmund", "given": "Oswald" } }, { "id": "Welsh-B-Y", "name": { "family": "Welsh", "given": "Barry" } }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Barlow-T-A", "name": { "family": "Barlow", "given": "Tom" } }, { "id": "Bianchi-L", "name": { "family": "Bianchi", "given": "Luciana" } }, { "id": "Byun-Yong-Ik", "name": { "family": "Byun", "given": "Yong-Ik" } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Friedman-P-G", "name": { "family": "Friedman", "given": "Peter G." } }, { "id": "Jelinsky-P-N", "name": { "family": "Jelinsky", "given": "Patrick" } }, { "id": "Madore-B-F", "name": { "family": "Madore", "given": "Barry" }, "orcid": "0000-0002-1576-1676" }, { "id": "Malina-R", "name": { "family": "Malina", "given": "Roger" } }, { "id": "Milliard-B", "name": { "family": "Milliard", "given": "Bruno" } }, { "id": "Morrissey-P", "name": { "family": "Morrissey", "given": "Patrick" }, "orcid": "0000-0001-8177-1023" }, { "id": "Neff-S-G", "name": { "family": "Neff", "given": "Susan" } }, { "id": "Rich-M-R", "name": { "family": "Rich", "given": "Mike" } }, { "id": "Schiminovich-D", "name": { "family": "Schiminovich", "given": "David" } }, { "id": "Small-T", "name": { "family": "Small", "given": "Todd" } }, { "id": "Szalay-A-S", "name": { "family": "Szalay", "given": "Alexander" } }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted" } } ] }, "title": "The GALEX mission and detectors", "ispublished": "unpub", "full_text_status": "public", "keywords": "GALEX, far ultraviolet, near ultraviolet, microchannel plates, imaging, spectroscopy", "note": "\u00a9 2004 Society of Photo-optical Instrumentation Engineers (SPIE). \n\nGALEX (Galaxy Evolution Explorer) is a NASA Small Explorer, launched in April 2003. We gratefully acknowledge NASA's support for construction, operation, and science analysis for the GALEX mission, developed in cooperation with the Centre National d'Etudes Spatiales of France and the Korean Ministry of Science and Technology. The grating, window, and aspheric corrector were supplied by France. We acknowledge the dedicated team of engineers, technicians, and administrative staff from JPL/Caltech, Orbital Sciences Corporation, University of California, Berkeley, Laboratory Astrophysique Marseille, and the other institutions who made this mission possible.\n\nPublished - 13.pdf
", "abstract": "We describe the Galaxy Evolution Explorer (GALEX) satellite that was launched in April 2003 specifically to accomplish far ultraviolet (FUV) and near ultraviolet (NUV) imaging and spectroscopic sky-surveys. GALEX is currently providing new and significant information on how galaxies form and evolve over a period that encompasses 80% of the history of the Universe. This is being accomplished by the precise measurement of the UV brightness of galaxies which is a direct measurement of their rate of star formation. We briefly describe the design of the GALEX mission followed by an overview of the instrumentation that comprises the science payload. We then focus on a description of the development of the UV sealed tube micro-channel plate detectors and provide data that describe their on-orbit performance. Finally, we provide a short overview of some of the science highlights obtained with GALEX.", "date": "2004-10-11", "date_type": "published", "publisher": "Society of Photo-optical Instrumentation Engineers (SPIE)", "place_of_pub": "Bellingham, WA", "pagerange": "13-24", "id_number": "CaltechAUTHORS:20180725-082717846", "isbn": "0819454206", "book_title": "UV and Gamma-Ray Space Telescope Systems", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20180725-082717846", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA" }, { "agency": "Centre National d'\u00c9tudes Spatiales (CNES)" }, { "agency": "Ministry of Science and Technology (Korea)" } ] }, "contributors": { "items": [ { "id": "Hasinger-G", "name": { "family": "Hasinger", "given": "Guenther" } }, { "id": "Turner-M-J-L", "name": { "family": "Turner", "given": "Martin J. L." } } ] }, "doi": "10.1117/12.561488", "primary_object": { "basename": "13.pdf", "url": "https://authors.library.caltech.edu/records/ks2ed-qze19/files/13.pdf" }, "resource_type": "book_section", "pub_year": "2004", "author_list": "Siegmund, Oswald; Welsh, Barry; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/s4v8z-def82", "eprint_id": 88311, "eprint_status": "archive", "datestamp": "2023-08-19 11:04:17", "lastmod": "2024-01-14 20:31:24", "type": "book_section", "metadata_visibility": "show", "creators": { "items": [ { "id": "Jelinsky-P-N", "name": { "family": "Jelinsky", "given": "Patrick" } }, { "id": "Morrissey-P", "name": { "family": "Morrissey", "given": "Patrick" }, "orcid": "0000-0001-8177-1023" }, { "id": "Malloy-J", "name": { "family": "Malloy", "given": "James" } }, { "id": "Jelinsky-S", "name": { "family": "Jelinsky", "given": "Sharon" } }, { "id": "Siegmund-O-H-W", "name": { "family": "Siegmund", "given": "Oswald" } }, { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "Chris" }, "orcid": "0000-0002-8650-1644" }, { "id": "Schiminovich-D", "name": { "family": "Schiminovich", "given": "David" } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted" } }, { "id": "Friedman-P-G", "name": { "family": "Friedman", "given": "Peter" } } ] }, "title": "Performance results of the GALEX cross delay line detectors", "ispublished": "unpub", "full_text_status": "public", "keywords": "Microchannel plates, ultraviolet detectors, GALEX, sealed tube", "note": "\u00a9 2003 Society of Photo-Optical Instrumentation Engineers (SPIE). \n\nThe authors would like to thank the GALEX teams at Caltech and JPL. We would also like to thank Darrel Doliber and Joseph Stock for their large contribution in the construction and characterization of the tubes. This work was supported by Caltech under contract #PC251341 and GSFC grant # NAG5-7615.\n\nPublished - 233.pdf
", "abstract": "We describe the performance results for the Galaxy Evolution Explorer (GALEX) far ultraviolet (FUV) and near ultraviolet (NUV) detectors. The detectors were delivered to JPL/Caltech starting in the fall of 2000 and have undergone approximately 1000 hours of pre-flight system-level testing to date. The GALEX detectors are sealed tube micro-channel plate (MCP) delay line readout detectors. They have a 65 mm diameter active area, which will be the largest format on orbit. The FUV detector has a spectral bandpass from 115 - 180 nm and the NUV detector has a bandpass from 165 - 300 nm. We report here on the performance of the detectors before and after integration into the instrument. Characteristics measured include the background count rate and distribution, gain vs. applied high voltage, spatial resolution and linearity, flat fields, and quantum efficiency.", "date": "2003-02-24", "date_type": "published", "publisher": "Society of Photo-optical Instrumentation Engineers (SPIE)", "place_of_pub": "Bellingham, WA", "pagerange": "233-240", "id_number": "CaltechAUTHORS:20180726-153351878", "isbn": "9780819446336", "book_title": "Future EUV/UV and Visible Space Astrophysics Missions and Instrumentation", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20180726-153351878", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA", "grant_number": "PC251341" }, { "agency": "NASA", "grant_number": "NAG5-7615" } ] }, "local_group": { "items": [ { "id": "Space-Astrophysics-Laboratory" } ] }, "contributors": { "items": [ { "id": "Blades-J-C", "name": { "family": "Blades", "given": "J. Chris" } }, { "id": "Siegmund-O-H-W", "name": { "family": "Siegmund", "given": "Oswald H. W." } } ] }, "doi": "10.1117/12.460013", "primary_object": { "basename": "233.pdf", "url": "https://authors.library.caltech.edu/records/s4v8z-def82/files/233.pdf" }, "resource_type": "book_section", "pub_year": "2003", "author_list": "Jelinsky, Patrick; Morrissey, Patrick; et el." }, { "id": "https://authors.library.caltech.eduhttps://authors.library.caltech.edu/records/j90a2-kek03", "eprint_id": 92310, "eprint_status": "archive", "datestamp": "2023-08-19 11:04:22", "lastmod": "2024-01-14 21:26:56", "type": "book_section", "metadata_visibility": "show", "creators": { "items": [ { "id": "Martin-D-Christopher", "name": { "family": "Martin", "given": "Christopher" }, "orcid": "0000-0002-8650-1644" }, { "id": "Barlow-T-A", "name": { "family": "Barlow", "given": "Tom" } }, { "id": "Conrow-T", "name": { "family": "Conrow", "given": "Timothy" } }, { "id": "Forster-K", "name": { "family": "Forster", "given": "Karl" }, "orcid": "0000-0001-5800-5531" }, { "id": "Friedman-P-G", "name": { "family": "Friedman", "given": "Peter G." } }, { "id": "McLean-R", "name": { "family": "McLean", "given": "Ryan" } }, { "id": "Morais-M-E", "name": { "family": "Morais", "given": "Marco" } }, { "id": "Morrissey-P", "name": { "family": "Morrissey", "given": "Patrick F." }, "orcid": "0000-0001-8177-1023" }, { "id": "Raison-F", "name": { "family": "Raison", "given": "Frederic" } }, { "id": "Schiminovich-D", "name": { "family": "Schiminovich", "given": "David" } }, { "id": "Small-T", "name": { "family": "Small", "given": "Todd" } }, { "id": "Wyder-T-K", "name": { "family": "Wyder", "given": "Ted" } }, { "id": "Xu-C-Kevin", "name": { "family": "Xu", "given": "C. Kevin" }, "orcid": "0000-0002-1588-6700" } ] }, "title": "The Galaxy Evolution Explorer", "ispublished": "unpub", "full_text_status": "public", "note": "\u00a9 2003 Society of Photo-optical Instrumentation Engineers (SPIE).\n\nNumerous people have made important contributions to the GALEX program. A partial list of those include Tom\nMitchie, Bill Price, Frank Street, Neil Dahya, and George Dorsey at Orbital Sciences Corporation, Mark Balzer, Ellyn\nMcCoy, Bob Debusk, Larry Wild, Dave Rice, Brad Drake, Brad Swenson, Mike Phillips, Michelle Coleman, Don\nMoore, Larry Hovland, Patrick Noone, Richard Parks, Bill Harris, Jeff Oseas, John Wirth, Karen L'heureux, Mike\nJohnson, Terry Scharton, Krung Chang, Ted Iskenderian, Bob Hobson, Doug Packard, Kerry Erickson, Robin Dumas,\nTien Nguyen, Tom Gavin, Larry Simmons, and Charles Elachi at JPL, Muamer Zukic at Cascade Optics, John Stone at\nSouthwest Research Institute, Danielle Bonnet, Michel Laget, Jean-Michel Deharveng, Marie Treyer at Laboratorie\nAstrophysique Marseille, Bud Hill at Baja Research, Mark Gummin, Alias Aerospace, Darrel Doliber, Sharon Jelinsky,\nJim Malloy, Bojan Turko, Rob Abiad, and Daniel Blackman at U.C. Berkeley, Minerva Calderon, John Klemic, Mark\nMaechtlen, Hilary Caisley, Janester Short, Monica Torres, Jaewoo Lee, Suk-yong Yi, Diane Engler, Tom Tombrello,\nand Steve Kaye at Caltech, Jeffrey Gumm, Bill Davis, Frank Snow, Jim Barrowman, Tony Cambriote at GSFC, and\nPhilippe Crane, Hashima Hasan, George Albright, Anne Kinney, and Ed Weiler at NASA Headquarters.\n\nPublished - 336.pdf
", "abstract": "The Galaxy Evolution Explorer (GALEX), a NASA Small Explorer Mission planned for launch in Fall 2002, will perform the first Space Ultraviolet sky survey. Five imaging surveys in each of two bands (1350-1750\u00c5 and 1750-2800\u00c5) will range from an all-sky survey (limit m_(AB)~20-21) to an ultra-deep survey of 4 square degrees (limit m_(AB)~26). Three spectroscopic grism surveys (R=100-300) will be performed with various depths (m_(AB)~20-25) and sky coverage (100 to 2 square degrees) over the 1350-2800\u00c5 band. The instrument includes a 50 cm modified Ritchey-Chr\u00e9tien telescope, a dichroic beam splitter and astigmatism corrector, two large sealed tube microchannel plate detectors to simultaneously cover the two bands and the 1.2 degree field of view. A rotating wheel provides either imaging or grism spectroscopy with transmitting optics. We will use the measured UV properties of local galaxies, along with corollary observations, to calibrate the UV-global star formation rate relationship in galaxies. We will apply this calibration to distant galaxies discovered in the deep imaging and spectroscopic surveys to map the history of star formation in the universe over the red shift range zero to two. The GALEX mission will include an Associate Investigator program for additional observations and supporting data analysis. This will support a wide variety of investigations made possible by the first UV sky survey.", "date": "2003-02-24", "date_type": "published", "publisher": "Society of Photo-optical Instrumentation Engineers (SPIE)", "place_of_pub": "Bellingham, WA", "pagerange": "336-350", "id_number": "CaltechAUTHORS:20190116-083921550", "isbn": "9780819446336", "book_title": "Future EUV/UV and Visible Space Astrophysics Missions and Instrumentation", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20190116-083921550", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "contributors": { "items": [ { "id": "Blades-J-C", "name": { "family": "Blades", "given": "J. Chris" } }, { "id": "Siegmund-O-H-W", "name": { "family": "Siegmund", "given": "Oswald H. W." } } ] }, "doi": "10.1117/12.460034", "primary_object": { "basename": "336.pdf", "url": "https://authors.library.caltech.edu/records/j90a2-kek03/files/336.pdf" }, "resource_type": "book_section", "pub_year": "2003", "author_list": "Martin, Christopher; Barlow, Tom; et el." } ]