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Directly Imaging Rocky Planets from the Ground

Mazin, B. and Artigau, É. and Bailey, V. and Baranec, C. and Beichman, C. and Benneke, B. and Birkby, J. and Brandt, T. and Chilcote, J. and Chun, M. and Close, L. and Currie, T. and Crossfield, I. and Dekany, R. and Delorme, J. R. and Dong, C. and Dong, R. and Doyon, R. and Dressing, C. and Fitzgerald, M. and Fortney, J. and Frazin, R. and Gaidos, E. and Guyon, O. and Hashimoto, J. and Hillenbrand, L. and Howard, A. and Jensen-Clem, R. and Jovanovic, N. and Kotani, T. and Kawahara, H. and Konopacky, Q. and Knutson, H. and Liu, M. and Lu, J. and Lozi, J. and Macintosh, B. and Males, J. and Marley, M. and Marois, C. and Mawet, D. and Meeker, S. and Millar-Blanchaer, M. and Mondal, S. and Bose, S. N. and Murakami, N. and Murray-Clay, R. and Narita, N. and Pyo, T. S. and Roberts, L. and Ruane, G. and Serabyn, G. and Shields, A. and Skemer, A. and Simard, L. and Stelter, D. and Tamura, M. and Troy, M. and Vasisht, G. and Wallace, J. K. and Wang, J. and Wang, J. and Wright, S. (2019) Directly Imaging Rocky Planets from the Ground. Astro2020 Science White Paper, . (Unpublished)

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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

Item Type:Report or Paper (Discussion Paper)
Related URLs:
URLURL TypeDescription Paper
Bailey, V.0000-0002-5407-2806
Beichman, C.0000-0002-5627-5471
Howard, A.0000-0001-8638-0320
Knutson, H.0000-0002-0822-3095
Mawet, D.0000-0002-8895-4735
Millar-Blanchaer, M.0000-0001-6205-9233
Roberts, L.0000-0003-3892-2900
Ruane, G.0000-0003-4769-1665
Vasisht, G.0000-0002-1871-6264
Wang, J.0000-0002-4361-8885
Group:Infrared Processing and Analysis Center (IPAC), Astronomy Department
Series Name:Astro2020 Science White Paper
Record Number:CaltechAUTHORS:20190620-155138416
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:96610
Deposited By: Tony Diaz
Deposited On:20 Jun 2019 23:01
Last Modified:16 Dec 2020 19:26

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