VaTEST. II. Statistical Validation of 11 TESS-detected Exoplanets Orbiting K-type Stars
Author:
Mistry PriyashkumarORCID, Pathak KamleshORCID, Prasad AniketORCID, Lekkas GeorgiosORCID, Bhattarai SurendraORCID, Gharat SarveshORCID, Maity MousamORCID, Kumar DhruvORCID, Collins Karen A.ORCID, Schwarz Richard P.ORCID, Mann Christopher R.ORCID, Furlan EliseORCID, Howell Steve B.ORCID, Ciardi DavidORCID, Bieryla AllysonORCID, Matthews Elisabeth C.ORCID, Gonzales EricaORCID, Ziegler CarlORCID, Crossfield IanORCID, Giacalone StevenORCID, Tan Thiam-GuanORCID, Evans PhilORCID, Hełminiak Krzysztof G.ORCID, Collins Kevin I.ORCID, Narita NorioORCID, Fukui AkihikoORCID, Pozuelos Francisco J.ORCID, Dressing CourtneyORCID, Soubkiou AbderahmaneORCID, Benkhaldoun ZouhairORCID, Schlieder Joshua E.ORCID, Suarez OlgaORCID, Barkaoui KhalidORCID, Palle EnricORCID, Murgas FelipeORCID, Srdoc Gregor, Goliguzova Maria V.ORCID, Strakhov Ivan A.ORCID, Gnilka CrystalORCID, Lester KathrynORCID, Littlefield ColinORCID, Scott NicORCID, Matson RachelORCID, Gillon MichaëlORCID, Jehin EmmanuelORCID, Timmermans Mathilde, Ghachoui MouradORCID, Abe LyuORCID, Bendjoya PhilippeORCID, Guillot TristanORCID, Triaud Amaury H. M. J.ORCID
Abstract
Abstract
NASA’s Transiting Exoplanet Survey Satellite (TESS) is an all-sky survey mission designed to find transiting exoplanets orbiting nearby bright stars. It has identified more than 329 transiting exoplanets, and almost 6000 candidates remain unvalidated. In this manuscript, we discuss the findings from the ongoing Validation of Transiting Exoplanets using Statistical Tools (VaTEST) project, which aims to validate new exoplanets for further characterization. We validated 11 new exoplanets by examining the light curves of 24 candidates using the LATTE and TESS-Plot tools and computing the false-positive probabilities using the statistical validation tool TRICERATOPS. These include planets suitable for atmospheric characterization using transmission spectroscopy (TOI-2194b), emission spectroscopy (TOI-3082b and TOI-5704b) and for both transmission and emission spectroscopy (TOI-672b, TOI-1694b, and TOI-2443b). Our validated planets have one super-Earth (TOI-2194b) orbiting a bright (V = 8.42 mag), metal-poor ([Fe/H] = −0.3720 ± 0.1) star, and one short-period Neptune-like planet (TOI-5704) in the hot-Neptune desert. In total, we validated one super-Earth, seven sub-Neptunes, one Neptune-like, and two sub-Saturn or super-Neptune-like exoplanets. Additionally, we identify five likely planet candidates (TOI-323, TOI-1180, TOI-2200, TOI-2408, and TOI-3913), which can be further studied to establish their planetary nature.
Publisher
American Astronomical Society
Subject
Space and Planetary Science,Astronomy and Astrophysics
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