[ { "id": "authors:109t3-r5g22", "collection": "authors", "collection_id": "109t3-r5g22", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20200908-083820973", "type": "monograph", "title": "High-contrast H\u03b1 imaging with Subaru/SCExAO+VAMPIRES", "author": [ { "family_name": "Uyama", "given_name": "Taichi", "orcid": "0000-0002-6879-3030", "clpid": "Uyama-Taichi" }, { "family_name": "Norris", "given_name": "Barnaby", "orcid": "0000-0002-8352-7515", "clpid": "Norris-B-R-M" }, { "family_name": "Jovanovic", "given_name": "Nemanja", "orcid": "0000-0001-5213-6207", "clpid": "Jovanovic-N" }, { "family_name": "Loni", "given_name": "Julien", "clpid": "Loni-J" }, { "family_name": "Tuthill", "given_name": "Peter", "orcid": "0000-0001-7026-6291", "clpid": "Tuthill-P-G" }, { "family_name": "Guyon", "given_name": "Olivier", "orcid": "0000-0002-1097-9908", "clpid": "Guyon-O" }, { "family_name": "Kudo", "given_name": "Tomoyuki", "orcid": "0000-0002-9294-1793", "clpid": "Kudo-Tomoyuki" }, { "family_name": "Hashimoto", "given_name": "Jun", "orcid": "0000-0002-3053-3575", "clpid": "Hashimoto-Jun" }, { "family_name": "Tamura", "given_name": "Motohide", "orcid": "0000-0002-6510-0681", "clpid": "Tamura-Motohide" }, { "family_name": "Martinache", "given_name": "Frantz", "orcid": "0000-0003-1180-4138", "clpid": "Martinache-F" } ], "abstract": "We present current status of H\u03b1 high-contrast imaging observations with Subaru/SCExAO+VAMPIRES. Our adaptive optics correction at optical wavelengths in combination with (double) spectral differential imaging (SDI) and angular differential imaging (ADI) was capable of resolving a ring feature around omi Cet and detect the H\u03b1 counterpart of jet around RY Tau. We tested the post-processing by changing the order of ADI and SDI and both of the contrast limits achieved \u223c10\u207b\u00b3 \u2212 5\u00d710\u207b\u2074 at 0.3\", which is comparable to other H\u03b1 high-contrast imaging instruments in the southern hemisphere such as VLT/SPHERE, VLT/MUSE, and MagAO. Current wavefront sensing and adaptive optics correction at optical wavelengths empirically depends on airmass and Subaru/VAMPIRES provides great opportunities for H\u03b1 high-contrast imaging for northern hemisphere targets.", "doi": "10.48550/arXiv.2008.10780", "publisher": "arXiv", "publication_date": "2020-08-25" }, { "id": "authors:6acr1-why17", "collection": "authors", "collection_id": "6acr1-why17", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20190620-155138416", "type": "monograph", "title": "Directly Imaging Rocky Planets from the Ground", "author": [ { "family_name": "Mazin", "given_name": "B.", "clpid": "Mazin-B-A" }, { "family_name": "Artigau", "given_name": "\u00c9." }, { "family_name": "Bailey", "given_name": "V.", "orcid": "0000-0002-5407-2806", "clpid": "Bailey-V-P" }, { "family_name": "Baranec", "given_name": "C." }, { "family_name": "Beichman", "given_name": "C.", "orcid": "0000-0002-5627-5471", "clpid": "Beichman-C-A" }, { "family_name": "Benneke", "given_name": "B." }, { "family_name": "Birkby", "given_name": "J." }, { "family_name": "Brandt", "given_name": "T." }, { "family_name": "Chilcote", "given_name": "J." }, { "family_name": "Chun", "given_name": "M." }, { "family_name": "Close", "given_name": "L." }, { "family_name": "Currie", "given_name": "T." }, { "family_name": "Crossfield", "given_name": "I." }, { "family_name": "Dekany", "given_name": "R.", "clpid": "Dekany-Richard" }, { "family_name": "Delorme", "given_name": "J. R.", "clpid": "Delorme-J-R" }, { "family_name": "Dong", "given_name": "C." }, { "family_name": "Dong", "given_name": "R." }, { "family_name": "Doyon", "given_name": "R." }, { "family_name": "Dressing", "given_name": "C." }, { "family_name": "Fitzgerald", "given_name": "M." }, { "family_name": "Fortney", "given_name": "J." }, { "family_name": "Frazin", "given_name": "R." }, { "family_name": "Gaidos", "given_name": "E." }, { "family_name": "Guyon", "given_name": "O." }, { "family_name": "Hashimoto", "given_name": "J." }, { "family_name": "Hillenbrand", "given_name": "L.", "clpid": "Hillenbrand-L-A" }, { "family_name": "Howard", "given_name": "A.", "orcid": "0000-0001-8638-0320", "clpid": "Howard-A-W" }, { "family_name": "Jensen-Clem", "given_name": "R." }, { "family_name": "Jovanovic", "given_name": "N.", "clpid": "Jovanovic-N" }, { "family_name": "Kotani", "given_name": "T." }, { "family_name": "Kawahara", "given_name": "H." }, { "family_name": "Konopacky", "given_name": "Q." }, { "family_name": "Knutson", "given_name": "H.", "orcid": "0000-0002-5375-4725", "clpid": "Knutson-H-A" }, { "family_name": "Liu", "given_name": "M." }, { "family_name": "Lu", "given_name": "J." }, { "family_name": "Lozi", "given_name": "J." }, { "family_name": "Macintosh", "given_name": "B." }, { "family_name": "Males", "given_name": "J." }, { "family_name": "Marley", "given_name": "M." }, { "family_name": "Marois", "given_name": "C." }, { "family_name": "Mawet", "given_name": "D.", "orcid": "0000-0002-8895-4735", "clpid": "Mawet-D" }, { "family_name": "Meeker", "given_name": "S.", "clpid": "Meeker-S-R" }, { "family_name": "Millar-Blanchaer", "given_name": "M.", "orcid": "0000-0001-6205-9233", "clpid": "Millar-Blanchaer-M-A" }, { "family_name": "Mondal", "given_name": "S." }, { "family_name": "Bose", "given_name": "S. N." }, { "family_name": "Murakami", "given_name": "N." }, { "family_name": "Murray-Clay", "given_name": "R." }, { "family_name": "Narita", "given_name": "N." }, { "family_name": "Pyo", "given_name": "T. S." }, { "family_name": "Roberts", "given_name": "L.", "orcid": "0000-0003-3892-2900", "clpid": "Roberts-L-C-Jr" }, { "family_name": "Ruane", "given_name": "G.", "orcid": "0000-0003-4769-1665", "clpid": "Ruane-G-J" }, { "family_name": "Serabyn", "given_name": "G.", "clpid": "Serabyn-G" }, { "family_name": "Shields", "given_name": "A." }, { "family_name": "Skemer", "given_name": "A." }, { "family_name": "Simard", "given_name": "L." }, { "family_name": "Stelter", "given_name": "D." }, { "family_name": "Tamura", "given_name": "M." }, { "family_name": "Troy", "given_name": "M.", "clpid": "Troy-M" }, { "family_name": "Vasisht", "given_name": "G.", "orcid": "0000-0002-1871-6264" }, { "family_name": "Wallace", "given_name": "J. K.", "clpid": "Wallace-J-Kent" }, { "family_name": "Wang", "given_name": "J." }, { "family_name": "Wang", "given_name": "J.", "orcid": "0000-0002-4361-8885", "clpid": "Wang-Ji" }, { "family_name": "Wright", "given_name": "S." } ], "abstract": "Over the past three decades instruments on the ground and in space have discovered thousands of planets outside the solar system. These observations have given rise to an astonishingly detailed picture of the demographics of short-period planets, but are incomplete at longer periods where both the sensitivity of transit surveys and radial velocity signals plummet. Even more glaring is that the spectra of planets discovered with these indirect methods are either inaccessible (radial velocity detections) or only available for a small subclass of transiting planets with thick, clear atmospheres. Direct detection can be used to discover and characterize the atmospheres of planets at intermediate and wide separations, including non-transiting exoplanets. Today, a small number of exoplanets have been directly imaged, but they represent only a rare class of young, self-luminous super-Jovian-mass objects orbiting tens to hundreds of AU from their host stars. Atmospheric characterization of planets in the <5 AU regime, where radial velocity (RV) surveys have revealed an abundance of other worlds, is technically feasible with 30-m class apertures in combination with an advanced AO system, coronagraph, and suite of spectrometers and imagers. There is a vast range of unexplored science accessible through astrometry, photometry, and spectroscopy of rocky planets, ice giants, and gas giants. In this white paper we will focus on one of the most ambitious science goals --- detecting for the first time habitable-zone rocky (<1.6 R_Earth) exoplanets in reflected light around nearby M-dwarfs", "doi": "10.48550/arXiv.1905.04275", "publisher": "arXiv", "publication_date": "2019-05-10" }, { "id": "authors:vtwey-01v65", "collection": "authors", "collection_id": "vtwey-01v65", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20181203-133957018", "type": "monograph", "title": "Direct Imaging in Reflected Light: Characterization of Older, Temperate Exoplanets With 30-m Telescopes", "author": [ { "family_name": "Artigau", "given_name": "\u00c9tienne", "orcid": "0000-0003-3506-5667", "clpid": "Artigau-E" }, { "family_name": "Bernstein", "given_name": "Rebecca A.", "clpid": "Bernstein-R-A" }, { "family_name": "Brandt", "given_name": "Timothy", "orcid": "0000-0003-2630-8073", "clpid": "Brandt-T-D" }, { "family_name": "Chilcote", "given_name": "Jeffrey", "orcid": "0000-0001-6305-7272", "clpid": "Chilcote-J-K" }, { "family_name": "Close", "given_name": "Laird", "orcid": "0000-0002-2167-8246", "clpid": "Close-L-M" }, { "family_name": "Crossfield", "given_name": "Ian", "orcid": "0000-0002-1835-1891", "clpid": "Crossfield-I-J-M" }, { "family_name": "Delorme", "given_name": "Jacques-Robert", "clpid": "Delorme-J-R" }, { "family_name": "Dressing", "given_name": "Courtney", "orcid": "0000-0001-8189-0233", "clpid": "Dressing-C-D" }, { "family_name": "Fitzgerald", "given_name": "Michael P.", "orcid": "0000-0002-0176-8973", "clpid": "Fitzgerald-M-P" }, { "family_name": "Fortney", "given_name": "Jonathan", "orcid": "0000-0002-9843-4354", "clpid": "Fortney-J-J" }, { "family_name": "Howard", "given_name": "Andrew", "orcid": "0000-0001-8638-0320", "clpid": "Howard-A-W" }, { "family_name": "Frazin", "given_name": "Richard", "clpid": "Frazin-R" }, { "family_name": "Jovanovic", "given_name": "Nemanja", "clpid": "Jovanovic-N" }, { "family_name": "Konopacky", "given_name": "Quinn", "orcid": "0000-0002-9936-6285", "clpid": "Konopacky-Q-M" }, { "family_name": "Lozi", "given_name": "Julien", "orcid": "0000-0002-3047-1845", "clpid": "Lozi-J" }, { "family_name": "Males", "given_name": "Jared R.", "clpid": "Males-J-R" }, { "family_name": "Marois", "given_name": "Christian", "orcid": "0000-0002-4164-4182", "clpid": "Marois-C" }, { "family_name": "Mazin", "given_name": "Benjamin A.", "clpid": "Mazin-B-A" }, { "family_name": "Millar-Blanchaer", "given_name": "Max A.", "orcid": "0000-0001-6205-9233", "clpid": "Millar-Blanchaer-M-A" }, { "family_name": "Morzinski", "given_name": "Katie M.", "clpid": "Morzinski-K-M" }, { "family_name": "Roberts", "given_name": "Lewis", "orcid": "0000-0003-3892-2900", "clpid": "Roberts-L-C-Jr" }, { "family_name": "Serabyn", "given_name": "Eugene", "clpid": "Serabyn-E" }, { "family_name": "Vasisht", "given_name": "Gautam", "orcid": "0000-0002-1871-6264", "clpid": "Vasisht-G" }, { "family_name": "Wallace", "given_name": "J. Kent", "clpid": "Wallace-J-K" }, { "family_name": "Wang", "given_name": "Ji", "orcid": "0000-0002-4361-8885", "clpid": "Wang-Ji" } ], "abstract": "Direct detection, also known as direct imaging, is a method for discovering and characterizing the atmospheres of planets at intermediate and wide separations. It is the only means of obtaining spectra of non-transiting exoplanets. Characterizing the atmospheres of planets in the <5 AU regime, where RV surveys have revealed an abundance of other worlds, requires a 30-m-class aperture in combination with an advanced adaptive optics system, coronagraph, and suite of spectrometers and imagers - this concept underlies planned instruments for both TMT (the Planetary Systems Imager, or PSI) and the GMT (GMagAO-X). These instruments could provide astrometry, photometry, and spectroscopy of an unprecedented sample of rocky planets, ice giants, and gas giants. For the first time habitable zone exoplanets will become accessible to direct imaging, and these instruments have the potential to detect and characterize the innermost regions of nearby M-dwarf planetary systems in reflected light. High-resolution spectroscopy will not only illuminate the physics and chemistry of exo-atmospheres, but may also probe rocky, temperate worlds for signs of life in the form of atmospheric biomarkers (combinations of water, oxygen and other molecular species). By completing the census of non-transiting worlds at a range of separations from their host stars, these instruments will provide the final pieces to the puzzle of planetary demographics. This whitepaper explores the science goals of direct imaging on 30-m telescopes and the technology development needed to achieve them.", "doi": "10.48550/arXiv.1808.09632", "publisher": "arXiv", "publication_date": "2018-08-29" } ]