Validation of 13 Hot and Potentially Terrestrial TESS Planets

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https://doi.org/10.3847/1538-3881/ac4334
 http://hdl.handle.net/11603/24343

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https://orcid.org/0000-0002-0388-8004
 https://orcid.org/0000-0001-7139-2724

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2022-01-28

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journal articles
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Giacalone, Steven et al. Validation of 13 Hot and Potentially Terrestrial TESS Planets. The Astronomical Journal 163 (Jan. 28, 2022) no. 2, pp , 163:99. https://doi.org/10.3847/1538-3881/ac4334.

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This work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.
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Abstract

The Astronomical Journal The American Astronomical Society, find out more The Institute of Physics, find out more THE FOLLOWING ARTICLE ISOPEN ACCESS Validation of 13 Hot and Potentially Terrestrial TESS Planets Steven Giacalone1, Courtney D. Dressing1, Christina Hedges2,3, Veselin B. Kostov4,5, Karen A. Collins6, Eric L. N. Jensen7, Daniel A. Yahalomi6,8, Allyson Bieryla6, David R. Ciardi9, Steve B. Howell3Show full author list Published 2022 January 28 • © 2022. The Author(s). Published by the American Astronomical Society. The Astronomical Journal, Volume 163, Number 2 Citation Steven Giacalone et al 2022 AJ 163 99 DownloadArticle PDF DownloadArticle ePub Figures Tables References DownloadPDFDownloadePub 993 Total downloads Turn on MathJax Share this article Share this content via email Share on Facebook (opens new window) Share on Twitter (opens new window) Share on Mendeley (opens new window) Article information Abstract The James Webb Space Telescope will be able to probe the atmospheres and surface properties of hot, terrestrial planets via emission spectroscopy. We identify 18 potentially terrestrial planet candidates detected by the Transiting Exoplanet Survey Satellite (TESS) that would make ideal targets for these observations. These planet candidates cover a broad range of planet radii (Rₚ ∼ 0.6–2.0R⊕) and orbit stars of various magnitudes (Kₛ = 5.78–10.78, V = 8.4–15.69) and effective temperatures (Tₑᶠᶠ ∼ 3000–6000 K). We use ground-based observations collected through the TESS Follow-up Observing Program (TFOP) and two vetting tools—DAVE and TRICERATOPS—to assess the reliabilities of these candidates as planets. We validate 13 planets: TOI-206 b, TOI-500 b, TOI-544 b, TOI-833 b, TOI-1075 b, TOI-1411 b, TOI-1442 b, TOI-1693 b, TOI-1860 b, TOI-2260 b, TOI-2411 b, TOI-2427 b, and TOI-2445 b. Seven of these planets (TOI-206 b, TOI-500 b, TOI-1075 b, TOI-1442 b, TOI-2260 b, TOI-2411 b, and TOI-2445 b) are ultra-short-period planets. TOI-1860 is the youngest (133 ± 26 Myr) solar twin with a known planet to date. TOI-2260 is a young (321 ± 96 Myr) G dwarf that is among the most metal-rich ([Fe/H] = 0.22 ± 0.06 dex) stars to host an ultra-short-period planet. With an estimated equilibrium temperature of ∼2600 K, TOI-2260 b is also the fourth hottest known planet with Rₚ < 2 R⊕.