Статья

A Framework for Prioritizing the <i>TESS</i> Planetary Candidates Most Amenable to Atmospheric Characterization

Eliza M.-R. KemptonDepartment of Astronomy, University of Maryland, College Park, MD 20742, USA; [email protected]Jacob L. BeanDepartment of Astronomy & Astrophysics, University of Chicago, 5640 S. Ellis Avenue, Chicago, IL 60637, USADana R. LouieDepartment of Astronomy, University of Maryland, College Park, MD 20742, USA; [email protected]Drake DemingDepartment of Astronomy, University of Maryland, College Park, MD 20742, USA; [email protected]Daniel D. B. KollDepartment of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, USAMegan MansfieldDepartment of Geophysical Sciences, University of Chicago, 5734 S. Ellis Avenue, Chicago, IL 60637, USAJessie L. ChristiansenCaltech/IPAC-NASA Exoplanet Science Institute, MC 100-22 Pasadena CA 91125, USAMercedes López‐MoralesHarvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 01238, USAMark R. SwainJet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109, USARobert T. ZellemJet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109, USASarah BallardKavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USAThomas BarclayNASA Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, MD 20771, USAJ. K. BarstowDepartment of Physics and Astronomy, University College London, London, UKNatasha E. BatalhaSpace Telescope Science Institute, 3700 San Martin Dr., Baltimore, MD 21218, USAThomas G. BeattyCenter for Exoplanets and Habitable Worlds, The Pennsylvania State University, 525 Davey Lab, University Park, PA 16802, USAZachory K. Berta-ThompsonDepartment of Astrophysical and Planetary Sciences, University of Colorado, Boulder, CO 80309, USAJayne BirkbyAnton Pannekoek Institute for Astronomy, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The NetherlandsLars A. BuchhaveDTU Space, National Space Institute, Technical University of Denmark, Elektrovej 328, DK-2800 Kgs. Lyngby, DenmarkDavid CharbonneauHarvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 01238, USANicolas B. CowanDepartment of Earth & Planetary Sciences, McGill University, 3450 rue University, Montreal, QC, H3A 0E8, CanadaIan J. M. CrossfieldKavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USAM. de Val-BorroDepartment of Physics, Catholic University of America, Washington, DC 20064, USARené DoyonInstitut de Recherche sur les Exoplanètes, Départment de Physique, Université de Montréal, Montréal, QC H3C 3J7, CanadaDiana DragomirKavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USAEric GaidosDepartment of Geology & Geophysics, University of Hawai‘i at Mänoa, Honolulu, HI 96822, USAKevin HengUniversity of Bern, Center for Space and Habitability, Gesellschaftsstrasse 6, CH-3012, Bern, SwitzerlandRenyu HuJet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109, USAStephen R. KaneDepartment of Earth Sciences, University of California, Riverside, CA 92521, USALaura KreidbergHarvard Society of Fellows 78 Mt. Auburn Street, Cambridge, MA 02138, USAM. MallonnLeibniz-Institut für Astrophysik Potsdam, An der Sternwarte 16, D-14482 Potsdam, GermanyCaroline MorleyDepartment of Astronomy, Harvard University, 60 Garden St, Cambridge MA 02138, USANorio NaritaAstrobiology Center, NINS, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, JapanV. NascimbeniDipartimento di Fisica e Astronomia, “G. Galilei”, Università degli Studi di Padova, Vicolo dell’Osservatorio 3, I-35122 Padova, ItalyΕ. ΠάλληDepartamento de Astrofísica, Universidad de La Laguna (ULL), E-38206, La Laguna, Tenerife, SpainElisa V. QuintanaNASA Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, MD 20771, USAE. RauscherDepartment of Astronomy, University of Michigan, 1085 S. University Avenue, Ann Arbor, MI 48109, USASara SeagerMassachusetts Institute of Technology, Department of Earth, Atmospheric, and Planetary Sciences, 77 Massachusetts Avenue, Cambridge, MA 02139, USAEvgenya L. ShkolnikSchool of Earth and Space Exploration, Arizona State University, Tempe, AZ, 85287, USADavid K. SingAstrophysics Group, Physics Building, Stocker Road, University of Exeter, Devon EX4 4QL, UKA. SozzettiINAF—Osservatorio Astrofisico di Torino, Via Osservatorio 20, I-10025 Pino Torinese, ItalyKeivan G. StassunVanderbilt University, Department of Physics & Astronomy, 6301 Stevenson Center Lane, Nashville, TN 37235, USAJeff A. ValentiSpace Telescope Science Institute, 3700 San Martin Dr., Baltimore, MD 21218, USAC. von EssenStellar Astrophysics Centre, Department of Physics and Astronomy, Aarhus University, Ny Munkegade 120, DK-8000 Aarhus C, Denmark

2018en

ABI

Аннотация

A key legacy of the recently launched TESS mission will be to provide the astronomical community with many of the best transiting exoplanet targets for atmospheric characterization. However, time is of the essence to take full advantage of this opportunity. JWST, although delayed, will still complete its nominal five year mission on a timeline that motivates rapid identification, confirmation, and mass measurement of the top atmospheric characterization targets from TESS. Beyond JWST, future dedicated missions for atmospheric studies such as ARIEL require the discovery and confirmation of several hundred additional sub-Jovian size planets (Rᵨ < 10 R⨁) orbiting bright stars, beyond those known today, to ensure a successful statistical census of exoplanet atmospheres. Ground-based ELTs will also contribute to surveying the atmospheres of the transiting planets discovered by TESS. Here we present a set of two straightforward analytic metrics, quantifying the expected signal-to-noise in transmission and thermal emission spectroscopy for a given planet, that will allow the top atmospheric characterization targets to be readily identified among the TESS planet candidates. Targets that meet our proposed threshold values for these metrics would be encouraged for rapid follow-up and confirmation via radial velocity mass measurements. Based on the catalog of simulated TESS detections by Sullivan et al. (2015), we determine appropriate cutoff values of the metrics, such that the TESS mission will ultimately yield a sample of ~300 high-quality atmospheric characterization targets across a range of planet size bins, extending down to Earth-size, potentially habitable worlds.

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Идентификаторы

DOI: 10.1088/1538-3873/aadf6f

Цитирования и источники

Цитирований: 2Использованных источников: 0

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