[ { "id": "https://authors.library.caltech.edu/records/7ban8-2n312", "eprint_id": 87643, "eprint_status": "archive", "datestamp": "2023-08-20 13:02:16", "lastmod": "2024-01-14 20:20:18", "type": "book_section", "metadata_visibility": "show", "creators": { "items": [ { "id": "Rigopoulou-D", "name": { "family": "Rigopoulou", "given": "D." }, "orcid": "0000-0001-6854-7545" }, { "id": "Caldwell-M", "name": { "family": "Caldwell", "given": "M." } }, { "id": "Ellison-B", "name": { "family": "Ellison", "given": "B." } }, { "id": "Pearson-C-P", "name": { "family": "Pearson", "given": "C." }, "orcid": "0000-0001-6139-649X" }, { "id": "Caux-E", "name": { "family": "Caux", "given": "E." } }, { "id": "Cooray-A", "name": { "family": "Cooray", "given": "A." }, "orcid": "0000-0002-3892-0190" }, { "id": "Gallego-J-D", "name": { "family": "Gallego", "given": "J. D." } }, { "id": "Gerin-M", "name": { "family": "Gerin", "given": "M." } }, { "id": "Goicoechea-J-R", "name": { "family": "Goicoechea", "given": "J. R." } }, { "id": "Goldsmith-P-F", "name": { "family": "Goldsmith", "given": "P." }, "orcid": "0000-0002-6622-8396" }, { "id": "Kramer-C", "name": { "family": "Kramer", "given": "C." } }, { "id": "Lis-D-C", "name": { "family": "Lis", "given": "D. C." }, "orcid": "0000-0002-0500-4700" }, { "id": "Molinari-S", "name": { "family": "Molinari", "given": "S." } }, { "id": "Ossenkopf-Okada-V", "name": { "family": "Ossenkopf-Okada", "given": "V." } }, { "id": "Savini-G", "name": { "family": "Savini", "given": "G." } }, { "id": "Tan-Boon-Kok", "name": { "family": "Tan", "given": "B. K." } }, { "id": "Tielens-A-G-G-M", "name": { "family": "Tielens", "given": "A." } }, { "id": "Viti-S", "name": { "family": "Viti", "given": "S." } }, { "id": "Wiedner-M-C", "name": { "family": "Wiedner", "given": "M." }, "orcid": "0000-0003-3912-7095" }, { "id": "Yassin-G", "name": { "family": "Yassin", "given": "G." } } ] }, "title": "The Far Infrared Spectroscopic Explorer (FIRSPEX): probing the lifecycle of the ISM in the universe", "ispublished": "unpub", "full_text_status": "public", "keywords": "Far-Infrared, millimeter, heterodyne, spectroscopy, space, astrophysics", "note": "\u00a9 2016 Society of Photo-Optical Instrumentation Engineers (SPIE). \n\nPart of the work presented here has been supported by the John Fell Oxford University Press (OUP) Research Fund. This research was carried out in part at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration.\n\n
Published - 99042K.pdf
", "abstract": "The Far Infrared Spectroscopic Explorer (FIRSPEX) is a novel European-led astronomy mission concept developed to enable large area ultra high spectroscopic resolution surveys in the THz regime. FIRSPEX opens up a relatively unexplored spectral and spatial parameter space that will produce an enormously significant scientific legacy by focusing on the properties of the multi-phase ISM, the assembly of molecular clouds in our Galaxy and the onset of star formation; topics which are fundamental to our understanding of galaxy evolution. The mission uses a heterodyne instrument and a ~1.2 m primary antenna to scan large areas of the sky in a number of discreet spectroscopic channels from L2. The FIRSPEX bands centered at [CI] 809 GHz, [NII]1460 GHz, [CII]1900 GHz and [OI]4700 GHz have been carefully selected to target key atomic and ionic fine structure transitions difficult or impossible to access from the ground but fundamental to the study of the multi-phase ISM in the Universe. The need for state-of-the-art sensitivity dictates the use of superconducting mixers configured either as tunnel junctions or hot electron bolometers. This technology requires cooling to low temperatures, approaching 4K, in order to operate. The receivers will operate in double sideband configuration providing a total of 7 pixels on the sky. FIRSPEX will operate from L2 in both survey and pointed mode enabling velocity resolved spectroscopy of large areas of sky as well as targeted observations.", "date": "2016-07-29", "date_type": "published", "publisher": "Society of Photo-optical Instrumentation Engineers (SPIE)", "place_of_pub": "Bellingham, WA", "pagerange": "Art. No. 99042K", "id_number": "CaltechAUTHORS:20180709-110848305", "isbn": "9781510601871", "book_title": "Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20180709-110848305", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "John Fell Oxford University Press (OUP) Research Fund" }, { "agency": "NASA/JPL/Caltech" } ] }, "local_group": { "items": [ { "id": "Infrared-Processing-and-Analysis-Center-(IPAC)" } ] }, "contributors": { "items": [ { "id": "MacEwan-H-A", "name": { "family": "MacEwan", "given": "Howard A." } }, { "id": "Fazio-G-G", "name": { "family": "Fazio", "given": "Giovanni G." } }, { "id": "Lystrup-M", "name": { "family": "Lystrup", "given": "Makenzie" } }, { "id": "Batalha-N-M", "name": { "family": "Batalha", "given": "Natalie" } }, { "id": "Siegler-N", "name": { "family": "Siegler", "given": "Nicholas" } }, { "id": "Tong-Edward-C", "name": { "family": "Tong", "given": "Edward C." } } ] }, "doi": "10.1117/12.2233593", "primary_object": { "basename": "99042K.pdf", "url": "https://authors.library.caltech.edu/records/7ban8-2n312/files/99042K.pdf" }, "resource_type": "book_section", "pub_year": "2016", "author_list": "Rigopoulou, D.; Caldwell, M.; et el." }, { "id": "https://authors.library.caltech.edu/records/tvaap-nw342", "eprint_id": 68906, "eprint_status": "archive", "datestamp": "2023-08-20 11:41:43", "lastmod": "2024-01-13 16:52:22", "type": "book_section", "metadata_visibility": "show", "creators": { "items": [ { "id": "Schmiedeke-A", "name": { "family": "Schmiedeke", "given": "A." } }, { "id": "Schilke-P", "name": { "family": "Schilke", "given": "P." }, "orcid": "0000-0003-2141-5689" }, { "id": "M\u00f6ller-Th", "name": { "family": "M\u00f6ller", "given": "Th." } }, { "id": "S\u00e1nchez-Monge-\u00c1", "name": { "family": "S\u00e1nchez-Monge", "given": "\u00c1." } }, { "id": "Bergin-E", "name": { "family": "Bergin", "given": "E." } }, { "id": "Comito-C", "name": { "family": "Comito", "given": "C." } }, { "id": "Csengeri-T", "name": { "family": "Csengeri", "given": "T." } }, { "id": "Lis-D-C", "name": { "family": "Lis", "given": "D. C." }, "orcid": "0000-0002-0500-4700" }, { "id": "Molinari-S", "name": { "family": "Molinari", "given": "S." } }, { "id": "Qin-S-L", "name": { "family": "Qin", "given": "S. L." } }, { "id": "Rolffs-R", "name": { "family": "Rolffs", "given": "R." } } ] }, "title": "Continuum radiative transfer Modeling of Sagittarius B2", "ispublished": "unpub", "full_text_status": "public", "note": "\u00a9 2016 EAS, EDP Sciences.\n\nPublished - eas1575030.pdf
", "abstract": "We present results from radiative transfer modeling of the continuum emission towards Sagittarius B2 (hereafter Sgr B2). We have developed a radiative transfer framework \u2013 Pandora \u2013 that employs RADMC-3D (Dullemond 2012) for a self-consistent determination of the dust temperature. With this pipeline, we have set-up a single model that consistently reproduces the thermal dust and free-free continuum emission of Sgr B2 spanning four orders of magnitude in spatial scales (0.02\u201345\u2009pc) and two orders of magnitude in frequency (20\u20134000\u2009GHz).", "date": "2016-05-20", "date_type": "published", "publisher": "EDP Sciences", "place_of_pub": "Les Ulis, France", "pagerange": "171-174", "id_number": "CaltechAUTHORS:20160708-080025018", "isbn": "978-2-7598-2022-1", "book_title": "Conditions and impact of star formation: from lab to space : in Memory of Charles H. Townes", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20160708-080025018", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "contributors": { "items": [ { "id": "Simon-R", "name": { "family": "Simon", "given": "Robert" } }, { "id": "Schaaf-R", "name": { "family": "Schaaf", "given": "Reinhold" } }, { "id": "Stutzki-J", "name": { "family": "Stutzki", "given": "J\u00fcrgen" } } ] }, "doi": "10.1051/eas/1575030", "primary_object": { "basename": "eas1575030.pdf", "url": "https://authors.library.caltech.edu/records/tvaap-nw342/files/eas1575030.pdf" }, "resource_type": "book_section", "pub_year": "2016", "author_list": "Schmiedeke, A.; Schilke, P.; et el." }, { "id": "https://authors.library.caltech.edu/records/031qd-9c977", "eprint_id": 83440, "eprint_status": "archive", "datestamp": "2023-08-20 09:38:05", "lastmod": "2024-01-14 05:49:58", "type": "book_section", "metadata_visibility": "show", "creators": { "items": [ { "id": "Kulczak-Jastrzebska-M", "name": { "family": "Kulczak-Jastrzebska", "given": "Magda" } }, { "id": "Lis-D-C", "name": { "family": "Lis", "given": "Dariusz" }, "orcid": "0000-0002-0500-4700" }, { "id": "Karska-A", "name": { "family": "Karska", "given": "Agata" }, "orcid": "0000-0001-8913-925X" }, { "id": "Gering-M", "name": { "family": "Gering", "given": "Maryvonne" } } ] }, "title": "Deuterated species in the star-forming regions", "ispublished": "unpub", "full_text_status": "public", "note": "\u00a9 2016 Polish Astronomical Society.", "abstract": "High deuteration levels in isolated prestellar cores can be explained by gas-phase or grain surface chemistry in dense, cold regions where abundant gas-phase species are frozen onto dust grains. We argue that an alternative machanism may operate in dense gas in the vicinity of embedded young stellar objects, where slow C-type shocks associated with molecular outflows may produce conditions favorable for deuterium fractionation.", "date": "2016", "date_type": "published", "publisher": "Polish Astronomical Society", "place_of_pub": "Warsaw", "pagerange": "200-203", "id_number": "CaltechAUTHORS:20171127-092213907", "isbn": "978-83-938279-3-0", "book_title": "XXXVII Polish Astronomical Society Meeting", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20171127-092213907", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "contributors": { "items": [ { "id": "Rozanska-A", "name": { "family": "Rozanska", "given": "A." } }, { "id": "Bejger-M", "name": { "family": "Bejger", "given": "M." } } ] }, "resource_type": "book_section", "pub_year": "2016", "author_list": "Kulczak-Jastrzebska, Magda; Lis, Dariusz; et el." }, { "id": "https://authors.library.caltech.edu/records/vdbd2-d5r88", "eprint_id": 83439, "eprint_status": "archive", "datestamp": "2023-08-20 09:38:02", "lastmod": "2024-01-14 05:49:56", "type": "book_section", "metadata_visibility": "show", "creators": { "items": [ { "id": "Kulczak-Jastrzebska-M", "name": { "family": "Kulczak-Jastrzebska", "given": "Magda" } }, { "id": "Lis-D-C", "name": { "family": "Lis", "given": "Dariusz" }, "orcid": "0000-0002-0500-4700" }, { "id": "Gering-M", "name": { "family": "Gering", "given": "Maryvonne" } } ] }, "title": "Observations of HDO in the high-mass formation regions", "ispublished": "unpub", "full_text_status": "public", "note": "\u00a9 2016 Polish Astronomical Society.", "abstract": "Deuterated species are powerful tools to study the physical structure and dynamics of protostellar envelopes, yet their observations are still scarce. We present observations of the ground state 1(0),(1)-0(0,0) rotational transition of HDO at 464.925 GHz and the 1(1,0)-1(0,1) transition at 509.292 towards three high-mass star forming regions, carried out with the Caltech Submillimeter Observatory. The latter transition is observed for the first time from the ground. The HDO lines are modeled using a spherically symmetric radiative transfer code to derive the radial distribution of the HDO abundance in the target sources. The abundance profile is divided into an inner hot core region, with T > 100 K and a cold outer envelope with T < 100 K. The El(2)(18)O observations from Flagey et al. (2013) are used to calculate the H_2O abundance profile and thus, allow us to constrain the HDO/H_2O ratio in the envelopes of high-mass star forming regions.", "date": "2016", "date_type": "published", "publisher": "Polish Astronomical Society", "place_of_pub": "Warsaw", "pagerange": "195-199", "id_number": "CaltechAUTHORS:20171127-091234807", "isbn": "978-83-938279-3-0", "book_title": "XXXVII Polish Astronomical Society Meeting", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20171127-091234807", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "contributors": { "items": [ { "id": "Rozanska-A", "name": { "family": "Rozanska", "given": "A." } }, { "id": "Bejger-M", "name": { "family": "Bejger", "given": "M." } } ] }, "resource_type": "book_section", "pub_year": "2016", "author_list": "Kulczak-Jastrzebska, Magda; Lis, Dariusz; et el." }, { "id": "https://authors.library.caltech.edu/records/p7avs-3sy19", "eprint_id": 54273, "eprint_status": "archive", "datestamp": "2023-08-20 04:38:58", "lastmod": "2024-01-13 16:14:19", "type": "book_section", "metadata_visibility": "show", "creators": { "items": [ { "id": "Lis-D-C", "name": { "family": "Lis", "given": "Dariusz C." }, "orcid": "0000-0002-0500-4700" } ] }, "title": "Herschel/HIFI line surveys: Discovery of interstellar chloronium (H_2Cl^+)", "ispublished": "unpub", "full_text_status": "public", "keywords": "Astrochemistry\u2014 ISM: abundances \u2014ISM: molecules \u2014 Line: identification \u2014Molecular processes \u2014 Submillimetre: ISM", "note": "\u00a9 2015 AIP Publishing LLC.\n\nHIFI has been designed and built by a consortium of institutes and university departments from across Europe,\nCanada and the United States under the leadership of SRON Netherlands Institute for Space Research, Groningen,\nThe Netherlands and with major contributions from Germany, France and the US. Consortium members are:\nCanada: CSA, U. Waterloo; France: CESR, LAB, LERMA, IRAM; Germany: KOSMA, MPIfR, MPS; Ireland, NUI\nMaynooth; Italy: ASI, IFSI-INAF, Osservatorio Astrofisico di Arcetri-INAF; Netherlands: SRON, TUD; Poland:\nCAMK, CBK; Spain: Observatorio Astronomico Nacional (IGN), Centro de Astrobiolog\u00eda (CSIC-INTA). Sweden:\nChalmers University of Technology-MC2, RSS & GARD; Onsala Space Observatory; Swedish National Space\nBoard, Stockholm University-Stockholm Observatory; Switzerland: ETH Zurich, FHNW; USA: Caltech, JPL,\nNHSC. Support for this work was provided by NASA through an award issued by JPL/Caltech and by the NSF\naward AST-0540882 to the CSO.\n\nPublished - 1.4906690.pdf
", "abstract": "Prior to the launch of Herschel, HCl was the only chlorine-containing molecule detected in the interstellar medium (ISM). However, chemical models have identified chloronium, H_2Cl^+, as a relatively abundant species that is potentially detectable. H_2Cl^+ was predicted to be most abundant in the environments where the ultraviolet radiation is strong: in diffuse clouds, or near the surfaces of dense clouds illuminated by nearby O and B stars. The HIFI instrument on Herschel provided the first detection of H_2Cl^+ in the ISM. The 2_(12)-1_(01) lines of ortho- H_2^(35)Cl^+ and ortho- H_2^(37)Cl^+ were detected in absorption toward NGC 6334I, and the 1_(11)-0_(00) transition of para- H_2^(35)Cl^+ was detected in absorption toward NGC 6334I and Sgr B2(S). The derived HCl/H_2Cl^+ column density ratios, \u223c1-10, are within the range predicted by models of diffuse and dense Photon Dominated Regions (PDRs). However, the observed H_2Cl^+ column densities, in excess of 10^(13) cm^(\u22122), are significantly higher than the model predictions. These observations demonstrate the outstanding spectroscopic capabilities of HIFI for detecting new interstellar molecules and providing key constraints for astrochemical models.", "date": "2015-01-22", "date_type": "published", "publisher": "American Institute of Physics", "pagerange": "346-349", "id_number": "CaltechAUTHORS:20150202-075103116", "isbn": "978-0-7354-1282-8", "book_title": "Proceedings of the International Conference of Computational Methods in Sciences and Engineering 2010", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20150202-075103116", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA/JPL/Caltech" }, { "agency": "NSF", "grant_number": "AST-0540882" } ] }, "contributors": { "items": [ { "id": "Simos-T-E", "name": { "family": "Simos", "given": "Theodore E." } }, { "id": "Maroulis-G", "name": { "family": "Maroulis", "given": "George" } } ] }, "doi": "10.1063/1.4906690", "primary_object": { "basename": "1.4906690.pdf", "url": "https://authors.library.caltech.edu/records/p7avs-3sy19/files/1.4906690.pdf" }, "resource_type": "book_section", "pub_year": "2015", "author_list": "Lis, Dariusz C." }, { "id": "https://authors.library.caltech.edu/records/kqbjd-43963", "eprint_id": 54201, "eprint_status": "archive", "datestamp": "2023-08-19 22:45:28", "lastmod": "2023-10-19 23:45:30", "type": "book_section", "metadata_visibility": "show", "creators": { "items": [ { "id": "van-Dishoeck-E-F", "name": { "family": "van Dishoeck", "given": "Ewine F." }, "orcid": "0000-0001-7591-1907" }, { "id": "Bergin-E-A", "name": { "family": "Bergin", "given": "Edwin A." }, "orcid": "0000-0003-4179-6394" }, { "id": "Lis-D-C", "name": { "family": "Lis", "given": "Dariusz C." }, "orcid": "0000-0002-0500-4700" }, { "id": "Lunine-J-I", "name": { "family": "Lunine", "given": "Jonathan I." }, "orcid": "0000-0003-2279-4131" } ] }, "title": "Water: From Clouds to Planets", "ispublished": "unpub", "full_text_status": "public", "note": "\u00a9 2014 University of Arizona Press.\n\nThe authors thank many colleagues for\ncollaborations and input, and various funding agencies for support,\nincluding NASA/JPL/Caltech. Figures by M. Persson, R. Visser,\nL. Kristensen, and D. Fedele are much appreciated.\n\nSubmitted - 1401.8103v2.pdf
", "abstract": "Results from recent space missions, in particular Spitzer and Herschel, have led to significant\nprogress in our understanding of the formation and transport of water from clouds to disks,\nplanetesimals, and planets. [n this review, we provide the underpinnings for the basic molecular\nphysics and chemistry of water and outline these advances in the context of water formation\nin space, its transport to a forming disk, its evolution in the disk, and finally the delivery to\nforming terrestrial worlds and accretion by gas giants. Throughout, we pay close attention to\nthe disposition of water as vapor or solid and whether it might be subject to processing at any\nstage. The context of the water in the solar system and the isotopic ratios (D/H) in various\nbodies are discussed as grounding data points for this evolution. Additional advances include\ngrowing knowledge of the composition of atmospheres of extrasolar gas giants, which may be\ninfluenced by the variable phases of water in the protoplanetary disk. Furthermore, the architecture\nof extrasolar systems leaves strong hints of dynamical interactions, which are important\nfor the delivery of water and subsequent evolution of planetary systems. We conclude with\nan exploration of water on Earth and note that all the processes and key parameters identified\nhere should also hold for exoplanetary systems.", "date": "2014", "date_type": "published", "publisher": "University of Arizona Press", "place_of_pub": "Tucson, AZ", "pagerange": "835-858", "id_number": "CaltechAUTHORS:20150128-153404633", "isbn": "9780816531240", "book_title": "Protostars and Planets VI", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20150128-153404633", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NASA/JPL/Caltech" } ] }, "contributors": { "items": [ { "id": "Beuther-H", "name": { "family": "Beuther", "given": "Henrik" } }, { "id": "Klessen-R-S", "name": { "family": "Klessen", "given": "Ralf S." } }, { "id": "Dullemond-C-P", "name": { "family": "Dullemond", "given": "Cornelis P." } }, { "id": "Henning-T", "name": { "family": "Henning", "given": "Thomas" } } ] }, "doi": "10.2458/azu_uapress_9780816531240-ch010", "primary_object": { "basename": "1401.8103v2.pdf", "url": "https://authors.library.caltech.edu/records/kqbjd-43963/files/1401.8103v2.pdf" }, "resource_type": "book_section", "pub_year": "2014", "author_list": "van Dishoeck, Ewine F.; Bergin, Edwin A.; et el." }, { "id": "https://authors.library.caltech.edu/records/96czd-gpy73", "eprint_id": 19929, "eprint_status": "archive", "datestamp": "2023-08-20 00:22:23", "lastmod": "2024-01-13 00:01:16", "type": "book_section", "metadata_visibility": "show", "creators": { "items": [ { "id": "Lis-D-C", "name": { "family": "Lis", "given": "Dariusz C." }, "orcid": "0000-0002-0500-4700" }, { "id": "Goldsmith-P-F", "name": { "family": "Goldsmith", "given": "Paul F." }, "orcid": "0000-0002-6622-8396" }, { "id": "Bergin-E-A", "name": { "family": "Bergin", "given": "Edwin A." }, "orcid": "0000-0003-4179-6394" }, { "id": "Falgarone-E", "name": { "family": "Falgarone", "given": "Edith" } }, { "id": "Gerin-M", "name": { "family": "Gerin", "given": "Maryvonne" } }, { "id": "Roueff-E", "name": { "family": "Roueff", "given": "Evelyne" }, "orcid": "0000-0002-4949-8562" } ] }, "title": "Hydrides in Space: Past, Present, and Future", "ispublished": "unpub", "full_text_status": "public", "note": "\u00a9 2009 Astronomical Society of the Pacific.\n\nD. C. L. would like to thank Tom Phillips for the stimulating\nand fruiful collaboration during the past 20 years. The Caltech Submillimeter\nObservatory is supported by NSF grant AST-0540882. We thank R. Peng\nfor his permission to use data prior to publication, as well as the members of\nthe PRISMAS team who helped formulate the HIFI hydride science program.\nThe research described in this paper was carried out at the Jet Propulsion Laboratory,\nCalifornia Insitute of Technology, under a contract with the National\nAeronautics and Space Administration.\n\nPublished - Lis2009p11352Submillimeter_Astrophysics_And_Technology_A_Symposium_Honoring_Thomas_G._Phillips.pdf
", "abstract": "One of the central questions of modern astrophysics concerns the life cycle of molecules in the Universe\u2014from the diffuse interstellar medium to planetary systems\u2014and the chemical pathways leading from simple atoms and diatomic molecules to complex organic species. In the past two decades, the Caltech Submillimeter Observatory (CSO) has contributed a number of key discoveries on these topics. Light hydrides are of particular interest for astrochemistry, as the basic building blocks of the chemical networks in both diffuse and dense clouds. Ongoing and planned submillimeter wide-field continuum surveys will yield hundreds of potential galactic targets suitable for detailed spectroscopic follow-ups. Recent advances in detector and digital spectrometer technologies promise to truly revolutionize further the field of high-resolution submillimeter spectroscopy and its application to the study of the life cycle of molecules. This will greatly improve our understanding of astrochemistry, astrobiology, the origin of life on Earth, and allow assessing the possibilities of life in other planetary systems.", "date": "2009", "date_type": "published", "publisher": "Astronomical Society of the Pacific", "place_of_pub": "San Francisco, CA", "pagerange": "23-36", "id_number": "CaltechAUTHORS:20100914-090324945", "isbn": "978-1-58381-714-8", "book_title": "Submillimeter astrophysics and technology : a symposium honoring Thomas G. Phillips", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20100914-090324945", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NSF", "grant_number": "AST-0540882" }, { "agency": "NASA/JPL/Caltech" } ] }, "contributors": { "items": [ { "id": "Lis-D-C", "name": { "family": "Lis", "given": "D. C." } }, { "id": "Vaillancourt-J-E", "name": { "family": "Vaillancourt", "given": "J. E." } }, { "id": "Goldsmith-P-F", "name": { "family": "Goldsmith", "given": "P. F." } }, { "id": "Bell-T-A", "name": { "family": "Bell", "given": "T. A." } }, { "id": "Scoville-N-Z", "name": { "family": "Scoville", "given": "N. Z." } }, { "id": "Zmuidzinas-J", "name": { "family": "Zmuidzinas", "given": "J." } } ] }, "primary_object": { "basename": "Lis2009p11352Submillimeter_Astrophysics_And_Technology_A_Symposium_Honoring_Thomas_G._Phillips.pdf", "url": "https://authors.library.caltech.edu/records/96czd-gpy73/files/Lis2009p11352Submillimeter_Astrophysics_And_Technology_A_Symposium_Honoring_Thomas_G._Phillips.pdf" }, "resource_type": "book_section", "pub_year": "2009", "author_list": "Lis, Dariusz C.; Goldsmith, Paul F.; et el." }, { "id": "https://authors.library.caltech.edu/records/yfcrn-84p86", "eprint_id": 102086, "eprint_status": "archive", "datestamp": "2023-08-20 00:32:58", "lastmod": "2024-01-15 03:00:50", "type": "book_section", "metadata_visibility": "show", "creators": { "items": [ { "id": "Crovisier-J", "name": { "family": "Crovisier", "given": "J." } }, { "id": "Biver-N", "name": { "family": "Biver", "given": "N." } }, { "id": "Bockel\u00e9e-Morvan-D", "name": { "family": "Bockel\u00e9e-Morvan", "given": "D." } }, { "id": "Boissier-J", "name": { "family": "Boissier", "given": "J." } }, { "id": "Colom-P", "name": { "family": "Colom", "given": "P." } }, { "id": "Lecacheux-A", "name": { "family": "Lecacheux", "given": "A." } }, { "id": "Moreno-R", "name": { "family": "Moreno", "given": "R." } }, { "id": "Paubert-G", "name": { "family": "Paubert", "given": "G." } }, { "id": "Lis-D-C", "name": { "family": "Lis", "given": "D. C." }, "orcid": "0000-0002-0500-4700" }, { "id": "Sumner-M-C", "name": { "family": "Sumner", "given": "M." } }, { "id": "Frisk-U", "name": { "family": "Frisk", "given": "U." } }, { "id": "Hjalmarson-\u00c5", "name": { "family": "Hjalmarson", "given": "\u00c5." } }, { "id": "Olberg-M", "name": { "family": "Olberg", "given": "M." } }, { "id": "Winnberg-A", "name": { "family": "Winnberg", "given": "A." } }, { "id": "Flor\u00e9n-H", "name": { "family": "Flor\u00e9n", "given": "H." } }, { "id": "Sandqvist-A", "name": { "family": "Sandqvist", "given": "A." } }, { "id": "Kwok-S", "name": { "family": "Kwok", "given": "S." } } ] }, "title": "The Chemical Composition of 9P/Tempel 1 from Radio Observations", "ispublished": "unpub", "full_text_status": "restricted", "note": "\u00a9 2009 Springer-Verlag Berlin Heidelberg. \n\nOdin is a Swedish-led satellite project funded jointly by the space agencies of Sweden (SNBS), Canada (CSA), Finland (Tekes) and France (CNES). IRAM is co-funded by France (CNRS), Germany (MPG) and Spain (IGN). The CSO is supported by NSF grant AST-0540882. The Nan\u00e7ay radio observatory is funded by the CNRS and the R\u00e9gion Centre in France.", "abstract": "In 2005, as part of a world-wide multi-wavelength investigation of comet 9P/Tempel 1 in support to the Deep Impact mission, we conducted radio spectroscopic observations with the Nan\u00e7ay radio telescope, the Odin satellite, the CSO 10-m and the IRAM 30-m telescopes. We report here our results concerning the chemical composition of the comet. The relative abundances of the detected species (H\u2082O, CH\u2083OH, H\u2082S, HCN) or their upper limits (CO, H\u2082CO, CS) are comparable to the mean values observed in other comets. No significant changes of the outgassing rates (except possibly for CH\u2083OH) or of the molecular abundances were observed following the impact.", "date": "2009", "date_type": "published", "publisher": "Springer", "place_of_pub": "Berlin", "pagerange": "243-248", "id_number": "CaltechAUTHORS:20200324-112032630", "isbn": "978-3-540-76958-3", "book_title": "Deep Impact as a World Observatory Event: Synergies in Space, Time, and Wavelength", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20200324-112032630", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "Swedish National Space Board (SNSB)" }, { "agency": "Canadian Space Agency (CSA)" }, { "agency": "Finnish Funding Agency for Technology and Innovation (Tekes)" }, { "agency": "Centre National d'\u00c9tudes Spatiales (CNES)" }, { "agency": "Centre National de la Recherche Scientifique (CNRS)" }, { "agency": "Max-Planck-Gesellschaft" }, { "agency": "Instituto Geogr\u00e1fico Nacional (IGN)" }, { "agency": "NSF", "grant_number": "AST-0540882" }, { "agency": "R\u00e9gion Centre (France)" } ] }, "doi": "10.1007/978-3-540-76959-0_32", "resource_type": "book_section", "pub_year": "2009", "author_list": "Crovisier, J.; Biver, N.; et el." }, { "id": "https://authors.library.caltech.edu/records/j12vj-50b54", "eprint_id": 101089, "eprint_status": "archive", "datestamp": "2023-08-22 11:30:47", "lastmod": "2023-10-19 22:25:38", "type": "book_section", "metadata_visibility": "show", "creators": { "items": [ { "id": "Lis-D-C", "name": { "family": "Lis", "given": "D. C." }, "orcid": "0000-0002-0500-4700" }, { "id": "Gerin-M", "name": { "family": "Gerin", "given": "M." } }, { "id": "Roueff-E", "name": { "family": "Roueff", "given": "E." }, "orcid": "0000-0002-4949-8562" }, { "id": "Phillips-T-G", "name": { "family": "Phillips", "given": "T. G." } }, { "id": "Poelman-D-R", "name": { "family": "Poelman", "given": "D. R." } } ] }, "title": "Interstellar deuteroammonia: Tracing physical conditions in dense, cold interstellar medium", "ispublished": "unpub", "full_text_status": "restricted", "keywords": "ISM: abundances; ISM: molecules; Stars: formation", "note": "\u00a9 2008 Springer Science+Business Media B.V. \n\nThis research has been supported by NSF grant AST-0540882 to the Caltech Submillimeter Observatory. MG and ER acknowledge travel support from the CNRS/INSU research program PCMI.", "abstract": "Close to 30 deuterated molecules have now been detected in the ISM, including doubly-deuterated species D\u2082H\u207a, ND\u2082H, D\u2082CO, CHD\u2082OH, D\u2082S, and D\u2082CS, as well as triply-deuterated ammonia and methanol. We review the current understanding of depletion and deuteration processes in cold, dense interstellar medium (ISM) and discuss the utility of deuteroammonia as a tracer of the physical conditions and kinematics of cold, dense gas.", "date": "2008-04-02", "date_type": "published", "publisher": "Springer", "place_of_pub": "Dordrecht", "pagerange": "77-80", "id_number": "CaltechAUTHORS:20200203-151541044", "isbn": "978-1-4020-6934-5", "book_title": "Science with the Atacama Large Millimeter Array: A New Era for Astrophysics", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20200203-151541044", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NSF", "grant_number": "AST-0540882" }, { "agency": "Centre National de la Recherche Scientifique (CNRS)" }, { "agency": "Institut national des sciences de l'Univers (INSU)" } ] }, "doi": "10.1007/978-1-4020-6935-2_15", "resource_type": "book_section", "pub_year": "2008", "author_list": "Lis, D. C.; Gerin, M.; et el." }, { "id": "https://authors.library.caltech.edu/records/2gjaa-k3338", "eprint_id": 24185, "eprint_status": "archive", "datestamp": "2023-08-19 16:58:07", "lastmod": "2024-01-13 05:17:40", "type": "book_section", "metadata_visibility": "show", "creators": { "items": [ { "id": "Phillips-T-G", "name": { "family": "Phillips", "given": "T. G." } }, { "id": "Lis-D-C", "name": { "family": "Lis", "given": "D. C." }, "orcid": "0000-0002-0500-4700" } ] }, "title": "The Distribution of Deuterium in the ISM: One Nucleon is Never Enough", "ispublished": "unpub", "full_text_status": "public", "note": "\u00a9 2006 Astronomical Society of the Pacific.\nThis research has been supported by the NSF grant\nAST 22-09008 to the Caltech Submillimeter Observatory.\n\n", "abstract": "The tendency for deuterium to be concentrated into the cold\ndense regions of the galaxy is due to the lower ground state energy of the heavier\nmolecules. Such chemical fractionation leads to [D/H] values as high as 1! In\nturn this allows the detection of species such as ND_3, H_2D^+ and D_2H^+. The\nfraction of the interstellar medium (ISM) with such large deuteration is hard to\nestimate, but may be sufficient to cause both spatially variable and generally\nlow [D/H] values in the diffuse ISM.", "date": "2006", "date_type": "published", "publisher": "Astronomical Society of the Pacific", "place_of_pub": "San Francisco, CA", "pagerange": "223-231", "id_number": "CaltechAUTHORS:20110623-132215867", "isbn": "978-1-583812-24-2", "book_title": "Revealing the Molecular Universe: One Antenna Is Never Enough", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20110623-132215867", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NSF", "grant_number": "AST 22-09008" } ] }, "contributors": { "items": [ { "id": "Backer-D-C", "name": { "family": "Backer", "given": "Donald C." } }, { "id": "Turner-J-L", "name": { "family": "Turner", "given": "Jean L." } }, { "id": "Moran-J-M", "name": { "family": "Moran", "given": "James M." } } ] }, "primary_object": { "basename": "Phillips2006p9039Revealing_The_Molecular_Universe_One_Antenna_Is_Never_Enough_-_In_Honor_Of_The_Academic_Retirement_Of_Jack_Welch.pdf", "url": "https://authors.library.caltech.edu/records/2gjaa-k3338/files/Phillips2006p9039Revealing_The_Molecular_Universe_One_Antenna_Is_Never_Enough_-_In_Honor_Of_The_Academic_Retirement_Of_Jack_Welch.pdf" }, "resource_type": "book_section", "pub_year": "2006", "author_list": "Phillips, T. G. and Lis, D. C." }, { "id": "https://authors.library.caltech.edu/records/thmwz-9sa70", "eprint_id": 83467, "eprint_status": "archive", "datestamp": "2023-08-19 12:49:01", "lastmod": "2024-01-14 05:50:03", "type": "book_section", "metadata_visibility": "show", "creators": { "items": [ { "id": "Lis-D-C", "name": { "family": "Lis", "given": "D. C." }, "orcid": "0000-0002-0500-4700" }, { "id": "Gerin-M", "name": { "family": "Gerin", "given": "M." } }, { "id": "Roueff-E", "name": { "family": "Roueff", "given": "E." }, "orcid": "0000-0002-4949-8562" }, { "id": "Phillips-T-G", "name": { "family": "Phillips", "given": "T. G." } } ] }, "title": "Deuterated Species in Star-Forming Regions", "ispublished": "unpub", "full_text_status": "restricted", "note": "\u00a9 1997 Springer-Verlag Berlin Heidelberg. \n\nOriginally published by Springer-Verlag Berlin Heidelberg New York in 1997.", "abstract": "A number of multiply deuterated molecular species have been recently detected in the ISM [1]\u2013[6] with abundances far exceeding earlier theoretical expectations. Detailed formation mechanisms for these species have not yet been satisfactorily established, but recent computations of Roberts et al. [7] show that the inclusion of HD+2 and D+3 in the gas-phase chemical network significantly enhances the fractionation of ionic and neutral species in regions of high density and heavy depletion. These models also predict the very high atomic D/H ratios necessary for grain-surface chemistry to reproduce the high formaldehyde and methanol fractionation seen in star forming regions. We argue that slow C-type shocks associated with molecular outflows may produce conditions favorable for deuterium fractionation reactions in star forming regions by (i) increasing the gas volume density and thus shortening the depletion and gas-phase reaction time-scales or (ii) evap orating grain mantle ices. In the case of triply deuterated ammonia, an extensive observational search carried out at the CSO has resulted in five detections, including only two strong detections (Barnard 1 [3] and L1689N [8]). As discussed below, in both these regions there are indications of shock interactions between molecular outflows and the ambient gas.", "date": "2004", "date_type": "published", "publisher": "Springer", "place_of_pub": "Berlin", "pagerange": "487-490", "id_number": "CaltechAUTHORS:20171127-153159871", "isbn": "978-3-642-62348-6", "book_title": "The Dense Interstellar Medium in Galaxies", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20171127-153159871", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "contributors": { "items": [ { "id": "Pfalzner-S", "name": { "family": "Pfalzner", "given": "Susanne" } }, { "id": "Kramer-C", "name": { "family": "Kramer", "given": "Carsten" } }, { "id": "Straubmeier-C", "name": { "family": "Straubmeier", "given": "Christian" } }, { "id": "Heithausen-A", "name": { "family": "Heithausen", "given": "Andreas" } } ] }, "doi": "10.1007/978-3-642-18902-9_86", "resource_type": "book_section", "pub_year": "2004", "author_list": "Lis, D. C.; Gerin, M.; et el." }, { "id": "https://authors.library.caltech.edu/records/sxa87-k5r51", "eprint_id": 98237, "eprint_status": "archive", "datestamp": "2023-08-22 01:21:18", "lastmod": "2024-01-14 21:54:43", "type": "book_section", "metadata_visibility": "show", "creators": { "items": [ { "id": "Comito-C", "name": { "family": "Comito", "given": "C." } }, { "id": "Schilke-P", "name": { "family": "Schilke", "given": "P." }, "orcid": "0000-0003-2141-5689" }, { "id": "Gerin-M", "name": { "family": "Gerin", "given": "M." } }, { "id": "Phillips-T-G", "name": { "family": "Phillips", "given": "T. G." } }, { "id": "Zmuidzinas-J", "name": { "family": "Zmuidzinas", "given": "J." } }, { "id": "Lis-D-C", "name": { "family": "Lis", "given": "D. C." }, "orcid": "0000-0002-0500-4700" } ] }, "title": "The Line-of-Sight Distribution of Water in SgrB2", "ispublished": "unpub", "full_text_status": "public", "keywords": "Massive Star; Column Density; Spatial Width; Radiative Transport Equation; Radiative Transfer Code", "note": "\u00a9 Springer-Verlag Berlin Heidelberg 2004.\n\nAccepted Version - 0402017.pdf
", "abstract": "The SgrB2 cloud is one of the most massive star forming regions in our Galaxy. It has many unique characteristics, among them an exceptional chemistry. Several species (FeO, [21]; NH_2, [20]; HF, [15]; C_3, [7]) have, in spite of searches elsewhere, been detected only toward this source. One possible explanation for this enigmatic chemistry is the existence of a layer of hot gas, which is thought to be produced by a shock. Since this layer has the same velocity as the ambient gas in SgrB2, it has been proven difficult to assess its importance for the chemistry of many species, with a few exceptions. In particular its importance for the water chemistry has been a matter of recent debate ([3]; [17]). While its temperature and density are well known (cf. [9]), its column density and width have remained elusive. In this work (illustrated in detail in [5]) we have been able to determine its importance for water chemistry and give constraints for column density and spatial width, by modeling the HDO and H_2^(18)O emission and absorption.", "date": "2004", "date_type": "published", "publisher": "Springer Berlin Heidelberg", "place_of_pub": "Berlin, Heidelberg", "pagerange": "265-268", "id_number": "CaltechAUTHORS:20190826-124739891", "isbn": "9783642623486", "book_title": "The Dense Interstellar Medium in Galaxies", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20190826-124739891", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "contributors": { "items": [ { "id": "Pfalzner-S", "name": { "family": "Pfalzner", "given": "Susanne" } }, { "id": "Kramer-C", "name": { "family": "Kramer", "given": "Carsten" } }, { "id": "Straubmeier-C", "name": { "family": "Straubmeier", "given": "Christian" } }, { "id": "Heithausen-A", "name": { "family": "Heithausen", "given": "Andreas" } } ] }, "doi": "10.1007/978-3-642-18902-9_47", "primary_object": { "basename": "0402017.pdf", "url": "https://authors.library.caltech.edu/records/sxa87-k5r51/files/0402017.pdf" }, "resource_type": "book_section", "pub_year": "2004", "author_list": "Comito, C.; Schilke, P.; et el." }, { "id": "https://authors.library.caltech.edu/records/2kam5-30968", "eprint_id": 53892, "eprint_status": "archive", "datestamp": "2023-08-19 10:56:30", "lastmod": "2024-01-13 16:13:58", "type": "book_section", "metadata_visibility": "show", "creators": { "items": [ { "id": "Dowell-C-D", "name": { "family": "Dowell", "given": "C. Darren" } }, { "id": "Allen-C-A", "name": { "family": "Allen", "given": "Christine A." } }, { "id": "Babu-S", "name": { "family": "Babu", "given": "Sachidananda" } }, { "id": "Freund-M-M", "name": { "family": "Freund", "given": "Minoru M." } }, { "id": "Gardner-M-B", "name": { "family": "Gardner", "given": "Matthew B." } }, { "id": "Groseth-J", "name": { "family": "Groseth", "given": "Jeffrey" } }, { "id": "Jhabvala-M", "name": { "family": "Jhabvala", "given": "Murzy" } }, { "id": "Kovacs-A", "name": { "family": "Kovacs", "given": "Attila" } }, { "id": "Lis-D-C", "name": { "family": "Lis", "given": "Dariusz C." }, "orcid": "0000-0002-0500-4700" }, { "id": "Moseley-S-H-Jr", "name": { "family": "Moseley", "given": "S. Harvey, Jr." } }, { "id": "Phillips-T-G", "name": { "family": "Phillips", "given": "Thomas G." } }, { "id": "Silverberg-R", "name": { "family": "Silverberg", "given": "Robert" } }, { "id": "Voellmer-G", "name": { "family": "Voellmer", "given": "George" } }, { "id": "Yoshida-Hiroshige", "name": { "family": "Yoshida", "given": "Hiroshige" } } ] }, "title": "SHARC II: a Caltech Submillimeter Observatory facility camera with 384 pixels", "ispublished": "unpub", "full_text_status": "public", "keywords": "submillimeter, instrumentation, bolometers", "note": "\u00a9 2003 The International Society for Optical Engineering. \n\nThe CSO is funded by NSF grant AST 9980846. A large number of people at Goddard, Caltech, and elsewhere have contributed to the development of SHARC II, including: T. Ames, A. Bartels, D. Benford, W. Collins, B. Derro, J. Dotson, J . Foster, M. Gould, D. A. Harper, J . Higinbotham, Johns Hopkins Applied Physics Lab, K. Lewis, S. Lin, P. Nelson, R. Paniagua, F. Peters, V. Ponce, D. Sandford, C. Sappington, J. Staguhn, D.\nWarden, and J . Wirth.\n\nPublished - Dowell_2003p73.pdf
", "abstract": "SHARC II is a background-limited 350 \u03bcm and 450 \u03bcm facility camera for the Caltech Submillimeter Observatory undergoing commissioning in 2002. The key component of SHARC II is a 12\u00d732 array of doped silicon 'pop-up' bolometers developed at NASA/Goddard. Each 1 mm \u00d7 1 mm pixel is coated with a 400 \u03a9/square bismuth film and located \u03bb/4 above a reflective backshort to achieve >75% absorption efficiency. The pixels cover the focal plane with >90% filling factor. At 350 \u03bcm, the SHARC II pixels are separated by 0.65 \u03bb/D. In contrast to the silicon bolometers in the predecessor of SHARC II, each doped thermistor occupies nearly the full area of the pixel, which lowers the 1/f knee of the detector noise to <0.03 Hz, under load, at the bath temperature of 0.36 K. The bolometers are AC-biased and read in 'total power' mode to take advantage of the improved stability. Each bolometer is biased through a custom ~130 M\u03a9 CrSi load resistor at 7 K and read with a commercial JFET at 120 K. The JFETs and load resistors are integrated with the detectors into a single assembly to minimize microphonic noise. Electrical connection across the 0.36 K to 4 K and 4 K to 120 K temperature interfaces is accomplished with lithographed metal wires on dielectric substrates. In the best 25% of winter nights on Mauna Kea, SHARC II is expected to have an NEFD at 350 \u03bcm of 1 Jy Hz-1/2 or better. The new camera should be at least 4 times faster at detecting known point sources and 30 times faster at mapping large areas compared to the prior instrument.", "date": "2003-02-01", "date_type": "published", "publisher": "Society of Photo-Optical Instrumentation Engineers", "place_of_pub": "Bellingham, WA", "pagerange": "73-87", "id_number": "CaltechAUTHORS:20150120-140348785", "isbn": "0-8194-4634-3", "book_title": "Millimeter and Submillimeter Detectors for Astronomy", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20150120-140348785", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NSF", "grant_number": "AST-9980846" } ] }, "contributors": { "items": [ { "id": "Phillips-T-G", "name": { "family": "Phillips", "given": "T. G." } }, { "id": "Zmuidzinas-J", "name": { "family": "Zmuidzinas", "given": "J." } } ] }, "doi": "10.1117/12.459360", "primary_object": { "basename": "Dowell_2003p73.pdf", "url": "https://authors.library.caltech.edu/records/2kam5-30968/files/Dowell_2003p73.pdf" }, "resource_type": "book_section", "pub_year": "2003", "author_list": "Dowell, C. Darren; Allen, Christine A.; et el." }, { "id": "https://authors.library.caltech.edu/records/1yzgq-n2b09", "eprint_id": 98166, "eprint_status": "archive", "datestamp": "2023-08-21 22:55:51", "lastmod": "2024-01-14 21:53:46", "type": "book_section", "metadata_visibility": "show", "creators": { "items": [ { "id": "Biver-Nicolas", "name": { "family": "Biver", "given": "Nicolas" } }, { "id": "Bockel\u00e9e-Morvan-Dominique", "name": { "family": "Bockel\u00e9e-Morvan", "given": "Dominique" } }, { "id": "Colom-Pierre", "name": { "family": "Colom", "given": "Pierre" } }, { "id": "Crovisier-Jacques", "name": { "family": "Crovisier", "given": "Jacques" } }, { "id": "Henry-Florence", "name": { "family": "Henry", "given": "Florence" } }, { "id": "Lellouch-Emmanuel", "name": { "family": "Lellouch", "given": "Emmanuel" }, "orcid": "0000-0001-7168-1577" }, { "id": "Winnberg-Anders", "name": { "family": "Winnberg", "given": "Anders" } }, { "id": "Johansson-L-E-B", "name": { "family": "Johansson", "given": "Lars E. B." } }, { "id": "Gunnarsson-Marcus", "name": { "family": "Gunnarsson", "given": "Marcus" } }, { "id": "Rickman-Hans", "name": { "family": "Rickman", "given": "Hans" } }, { "id": "Rantakyr\u00f6-F-T", "name": { "family": "Rantakyr\u00f6", "given": "Fredrik" } }, { "id": "Davies-J-K", "name": { "family": "Davies", "given": "John K." } }, { "id": "Dent-W-R-F", "name": { "family": "Dent", "given": "William R. F." } }, { "id": "Paubert-Gabriel", "name": { "family": "Paubert", "given": "Gabriel" } }, { "id": "Moreno-Rapha\u00ebl", "name": { "family": "Moreno", "given": "Rapha\u00ebl" } }, { "id": "Wink-J\u00f6rn", "name": { "family": "Wink", "given": "J\u00f6rn" } }, { "id": "Despois-Didier", "name": { "family": "Despois", "given": "Didier" } }, { "id": "Benford-D-J", "name": { "family": "Benford", "given": "Dominic J." }, "orcid": "0000-0002-9884-4206" }, { "id": "Gardner-M-B", "name": { "family": "Gardner", "given": "Matt" } }, { "id": "Lis-D-C", "name": { "family": "Lis", "given": "Dariusz C." }, "orcid": "0000-0002-0500-4700" }, { "id": "Mehringer-David", "name": { "family": "Mehringer", "given": "David" } }, { "id": "Phillips-T-G", "name": { "family": "Phillips", "given": "Thomas G." } }, { "id": "Rauer-Heike", "name": { "family": "Rauer", "given": "Heike" } } ] }, "title": "The 1995\u20132002 Long-Term Monitoring of Comet C/1995 O1 (Hale-Bopp) at Radio Wavelength", "ispublished": "unpub", "full_text_status": "restricted", "keywords": "C/1995 O1 (Hale-Bopp); comets; molecules; radio observations", "note": "\u00a9 Springer Science+Business Media Dordrecht 2002. \n\n(Received 26 March 2002; Accepted 12 June 2002) \n\nWe are grateful to the IRAM, JCMT, CSO and SEST staff for scheduling and assistance during the observations of these long-term projects. SEST is operated jointly by the Swedish National Facility for Radio Astronomy, and by the European Southern Observatory. IRAM is an international institute cofunded by the CNRS, the Max-Planck-Gesellschaft and the Instituto Geogratico Nacional, Spain. The JCMT is operated on behalf of the Particle Physics and Astronomy Research Council of the United Kingdom, the Netherlands Organization for Scientific Research, and the National Research Council of Canada. The CSO is supported by National Science Foundation grant AST 99-80846. The Nan\u00e7ay Radio Observatory is operated by the Unit\u00e9 Scientifique de Nan\u00e7ay of the Observatoire de Paris, associated with the CNRS, and also gratefully acknowledges the financial support of the ConseiI R\u00e9gional of the R\u00e9gion Centre in France.", "abstract": "The bright comet Hale-Bopp provided the first opportunity to follow the outgassing rates of a number of molecular species over a large range of heliocentric distances. We present the results of our observing campaign at radio wavelengths which began in August 1995 and ended in January 2002. The observations were carried out with the telescopes of Nan\u00e7ay, IRAM, JCMT, CSO and, since September 1997, SEST. The lines of nine molecules (OH, CO, HCN, CH_3OH, H_2CO, H_2S, CS, CH_3CN and HNC) were monitored. CS, H_2S, H_2CO, CH_3CN were detected up to r_h = 3\u20134 AU from the Sun, while HCN and CH_3OH were detected up to 6 AU. CO, which is the main driver of cometary activity at heliocentric distances larger than 3\u20134 AU, was last detected in August 2001, at r_h = 14 AU. \n\nThe gas production rates obtained from this programme contain important information on the nature of cometary ices, their thermal properties and sublimation mechanisms. Line shapes allow to measure gas expansion velocities, which, at large heliocentric distances, might be directly connected to the temperature of the nucleus surface. Inferred expansion velocity of the gas varied as r_h^(\u22120.4) within 7 AU from the Sun, but remained close to 0.4 km s^(\u22121) further away. The CO spectra obtained at large r h are strongly blueshifted and indicative of an important day-to-night asymmetry in outgassing and expansion velocity. The kinetic temperature of the coma, estimated from the relative intensities of the CH_3OH and CO lines, increased with decreasing r_h, from about 10 K at 7 AU to 110 K around perihelion.", "date": "2002-01", "date_type": "published", "publisher": "Springer Netherlands", "place_of_pub": "Dordrecht", "pagerange": "5-14", "id_number": "CaltechAUTHORS:20190823-105107263", "isbn": "9789048161560", "book_title": "Cometary Science after Hale-Bopp", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20190823-105107263", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "Centre National de la Recherche Scientifique (CNRS)" }, { "agency": "Max-Planck-Gesellschaft" }, { "agency": "Instituto Geogr\u00e0fico Nacional (IGN)" }, { "agency": "NSF", "grant_number": "AST 99-80846" }, { "agency": "ConseiI R\u00e9gional of the R\u00e9gion Centre (France)" } ] }, "contributors": { "items": [ { "id": "Boehnhardt-H", "name": { "family": "Boehnhardt", "given": "H." } }, { "id": "Combi-M", "name": { "family": "Combi", "given": "M." } }, { "id": "Kidger-M-R", "name": { "family": "Kidger", "given": "M. R." } }, { "id": "Schulz-R-R", "name": { "family": "Schulz", "given": "R." } } ] }, "doi": "10.1007/978-94-017-1088-6_1", "resource_type": "book_section", "pub_year": "2002", "author_list": "Biver, Nicolas; Bockel\u00e9e-Morvan, Dominique; et el." }, { "id": "https://authors.library.caltech.edu/records/5r02x-x3x67", "eprint_id": 103084, "eprint_status": "archive", "datestamp": "2023-08-21 21:53:00", "lastmod": "2023-10-20 00:45:56", "type": "book_section", "metadata_visibility": "show", "creators": { "items": [ { "id": "Henry-F", "name": { "family": "Henry", "given": "Florence" } }, { "id": "Crovisier-J", "name": { "family": "Crovisier", "given": "Jacques" } }, { "id": "Bockel\u00e9e-Morvan-D", "name": { "family": "Bockel\u00e9e-Morvan", "given": "Dominique" } }, { "id": "Rauer-H", "name": { "family": "Rauer", "given": "Heike" } }, { "id": "Lis-D-C", "name": { "family": "Lis", "given": "Darek" }, "orcid": "0000-0002-0500-4700" } ] }, "title": "Radio Observations of Ions in Comet Hale-Bopp", "ispublished": "unpub", "full_text_status": "restricted", "keywords": "Solar Wind; Column Density; Radio Observation; Local Thermal Equilibrium; Space Sensor", "note": "\u00a9 2001 Kluwer Academic Publishers.", "abstract": "We present radio observations of HCO\u207a, H\u2083O\u207a and CO\u207a in Hale-Bopp.", "date": "2001", "date_type": "published", "publisher": "Springer Netherlands", "place_of_pub": "Dordrecht", "pagerange": "303-304", "id_number": "CaltechAUTHORS:20200508-133947884", "isbn": "9789401038133", "book_title": "Physics of Space: Growth Points and Problems", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20200508-133947884", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "contributors": { "items": [ { "id": "Meyer-Vernet-N", "name": { "family": "Meyer-Vernet", "given": "Nicole" } }, { "id": "Moncuquet-M", "name": { "family": "Moncuquet", "given": "Michel" } }, { "id": "Pantellini-F", "name": { "family": "Pantellini", "given": "Filippo" } } ] }, "doi": "10.1007/978-94-010-0904-1_36", "resource_type": "book_section", "pub_year": "2001", "author_list": "Henry, Florence; Crovisier, Jacques; et el." }, { "id": "https://authors.library.caltech.edu/records/79cgw-jbb27", "eprint_id": 98348, "eprint_status": "archive", "datestamp": "2023-08-19 05:10:26", "lastmod": "2023-10-18 17:16:48", "type": "book_section", "metadata_visibility": "show", "creators": { "items": [ { "id": "Despois-D", "name": { "family": "Despois", "given": "Didier" } }, { "id": "Ricaud-P", "name": { "family": "Ricaud", "given": "Philippe" } }, { "id": "Lauti\u00e9-N", "name": { "family": "Lauti\u00e9", "given": "Nicolas" } }, { "id": "Schneider-N", "name": { "family": "Schneider", "given": "Nicola" } }, { "id": "Jacq-T", "name": { "family": "Jacq", "given": "Thierry" } }, { "id": "Biver-N", "name": { "family": "Biver", "given": "Nicolas" } }, { "id": "Lis-D-C", "name": { "family": "Lis", "given": "Dariusz C." }, "orcid": "0000-0002-0500-4700" }, { "id": "Chamberlin-R-A", "name": { "family": "Chamberlin", "given": "Richard A." } }, { "id": "Phillips-T-G", "name": { "family": "Phillips", "given": "Thomas G." } }, { "id": "Miller-Martin", "name": { "family": "Miller", "given": "Martin" }, "orcid": "0000-0003-3520-4946" }, { "id": "Jenniskens-P", "name": { "family": "Jenniskens", "given": "Peter" } } ] }, "title": "Search for Extraterrestrial Origin of Atmospheric Trace Molecules \u2014 Radio Sub-Mm Observations during the Leonids", "ispublished": "unpub", "full_text_status": "restricted", "keywords": "Early Earth, H_2O, HeN, Leonids 1999, lower thermosphere, O_3, mesosphere, meteors, micro-wave, radio", "note": "\u00a9 Springer Science+Business Media Dordrecht 2000. \n\nReprinted from Earth, Moon, and Planets, Volumes 82-83, 1998 (Published in 2000) \n\nWe thank referees Steve Charnley and Frans Rietmeijer for helpfull comments. This work was supported by grants from CNRS/INSU (G.D.R. Exobiologie and Action Sp\u00e9cifique\" Grands Telescopes Etrangers\") and CNES, which also provided financial support to Nicolas Lauti\u00e9. Didier Despois and Philippe Ricaud thank the CSO for providing excellent working conditions, very valuable technical help, and free accomodation at the telescope. CSO is supported by the National Science Foundation grant AST-9980846. Editorial handling: M. Fonda.", "abstract": "To identify the effect of meteor showers on the molecular content of the upper atmosphere of the Earth, we have carried out ground-based observations of atmospheric HCN. HCN radio observations at CSO (Hawaii) on Nov 18/19, 1999, the night after the second Leonid shower maximum, show unusually low HCN abundances above 45 km altitude, which are only recovered after sunrise. We also investigated UARS/HALOE satellite data on H_2O and O_3. No correlation appears of year round H_2O and O_3 around 55 km with annual meteor showers, nor with meteor activity at the time of the 1998 Leonid shower.", "date": "2000", "date_type": "published", "publisher": "Springer Netherlands", "place_of_pub": "Dordrecht", "pagerange": "129-140", "id_number": "CaltechAUTHORS:20190829-131533738", "isbn": "9789048156245", "book_title": "Leonid Storm Research", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20190829-131533738", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "Centre National de la Recherche Scientifique (CNRS)" }, { "agency": "Institut national des sciences de l'Univers (INSU)" }, { "agency": "Centre National d'\u00c9tudes Spatiales (CNES)" }, { "agency": "NSF", "grant_number": "AST-9980846" } ] }, "contributors": { "items": [ { "id": "Jenniskens-P", "name": { "family": "Jenniskens", "given": "Peter" } }, { "id": "Rietmeijer-F", "name": { "family": "Rietmeijer", "given": "Frans" } }, { "id": "Brosch-N", "name": { "family": "Brosch", "given": "Noah" } }, { "id": "Fonda-M", "name": { "family": "Fonda", "given": "Mark" } } ] }, "doi": "10.1007/978-94-017-2071-7_10", "resource_type": "book_section", "pub_year": "2000", "author_list": "Despois, Didier; Ricaud, Philippe; et el." }, { "id": "https://authors.library.caltech.edu/records/27z24-wav80", "eprint_id": 106775, "eprint_status": "archive", "datestamp": "2023-08-19 00:51:03", "lastmod": "2024-01-15 18:15:18", "type": "book_section", "metadata_visibility": "show", "creators": { "items": [ { "id": "Lis-D-C", "name": { "family": "Lis", "given": "D. C." }, "orcid": "0000-0002-0500-4700" }, { "id": "Schilke-P", "name": { "family": "Schilke", "given": "P." }, "orcid": "0000-0003-2141-5689" }, { "id": "Keene-Jocelyn", "name": { "family": "Keene", "given": "J." } } ] }, "title": "\u00b9\u00b3CO (6\u20135) in the Orion Bar: A critical observational test for PDR models", "ispublished": "unpub", "full_text_status": "restricted", "note": "\u00a9 Springer Science+Business Media Dordrecht 1997. \n\nResearch at the eso is supported by the NSF under grant AST 93-13929.", "abstract": "The Orion Bar is a limb-brightened edge of the cavity carved out in the Orion molecular cloud by the expanding HII region surrounding the Trapezium cluster. The Bar is one of the best studied Photon-Dominated Regions (PDRs; see Genzel in this volume for a review). Tauber et al. (1995) found a tight correlation between the distributions of the neutral atomic carbon and \u00b9\u00b3CO (2\u22121) emission toward the Bar, which is difficult to explain in terms of classical PDR models. A possible explanation for this correlation was given by the geometric model of Hogerheijde et al. (1995) in which the PDR geometry changes from face-on to edge-on and back with increasing distance from the ionizing stars. The observed maximum of the molecular emission toward the Bar thus corresponds to a molecular column density peak and there are no significant variations in the excitation conditions across the Bar. In the present paper we investigate the uniformity of the excitation conditions across the Bar through observations of the \u00b9\u00b3CO (6\u22125) and \u00b9\u00b2CO (6\u22125) emission. We argue that the \u00b9\u00b3CO (6\u22125) emission provides a critical test for models of this region and PDRs in general.", "date": "1997", "date_type": "published", "publisher": "Springer Netherlands", "place_of_pub": "Dordrecht", "pagerange": "128-130", "id_number": "CaltechAUTHORS:20201121-191744165", "isbn": "9780792342847", "book_title": "CO: Twenty-Five Years of Millimeter-Wave Spectroscopy", "official_url": "https://resolver.caltech.edu/CaltechAUTHORS:20201121-191744165", "rights": "No commercial reproduction, distribution, display or performance rights in this work are provided.", "funders": { "items": [ { "agency": "NSF", "grant_number": "AST 93-13929" } ] }, "collection": "CaltechAUTHORS", "contributors": { "items": [ { "id": "Latter-W-B", "name": { "family": "Latter", "given": "William B." } }, { "id": "Radford-S-J-E", "name": { "family": "Radford", "given": "Simon J. E." } }, { "id": "Jewell-P-R", "name": { "family": "Jewell", "given": "Philip R." } }, { "id": "Mangum-J-G", "name": { "family": "Mangum", "given": "Jeffrey G." } }, { "id": "Bally-J", "name": { "family": "Bally", "given": "John" } } ] }, "doi": "10.1007/978-94-011-5414-7_23", "resource_type": "book_section", "pub_year": "1997", "author_list": "Lis, D. C.; Schilke, P.; et el." } ]