Two Warm Super-Earths Transiting the Nearby M Dwarf TOI-2095

Quintana, Elisa V. and Gilbert, Emily A. and Barclay, Thomas and Silverstein, Michele L. and Schlieder, Joshua E. and Cloutier, Ryan and Quinn, Samuel N. and Rodriguez, Joseph E. and Vanderburg, Andrew and Hord, Benjamin J. and Louie, Dana R. and Ostberg, Colby and Kane, Stephen R. and Hoffman, Kelsey and Rowe, Jason F. and Arney, Giada N. and Saxena, Prabal and Richardson, Taran and Clement, Matthew S. and Kartvedt, Nicholas M. and Adams, Fred C. and Alfred, Marcus and Berger, Travis and Bieryla, Allyson and Bonney, Paul and Boyd, Patricia and Cadieux, Charles and Caldwell, Douglas and Ciardi, David R. and Charbonneau, David and Collins, Karen A. and Colón, Knicole D. and Conti, Dennis M. and Di Sora, Mario and Domagal-Goldman, Shawn and Dotson, Jessie and Fauchez, Thomas and Gonzales, Erica J. and Günther, Maximilian N. and Hedges, Christina and Isopi, Giovanni and Kohler, Erika and Kopparapu, Ravi and Kostov, Veselin B. and Larsen, Jeffrey A. and Lopez, Eric and Mallia, Franco and Mandell, Avi and Mullally, Susan E. and Paudel, Rishi R. and Powell, Brian P. and Ricker, George R. and Safonov, Boris S. and Schwarz, Richard P. and Sefako, Ramotholo and Stassun, Keivan G. and Wilson, Robert and Winn, Joshua N. and Vanderspek, Roland K. (2023) Two Warm Super-Earths Transiting the Nearby M Dwarf TOI-2095. The Astronomical Journal, 166 (5). p. 195. ISSN 0004-6256

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Abstract

We report the detection and validation of two planets orbiting TOI-2095 (TIC 235678745). The host star is a 3700 K M1V dwarf with a high proper motion. The star lies at a distance of 42 pc in a sparsely populated portion of the sky and is bright in the infrared (K = 9). With data from 24 sectors of observation during Cycles 2 and 4 of the Transiting Exoplanet Survey Satellite, TOI-2095 exhibits two sets of transits associated with super-Earth-sized planets. The planets have orbital periods of 17.7 days and 28.2 days and radii of 1.30 R⊕ and 1.39 R⊕, respectively. Archival data, preliminary follow-up observations, and vetting analyses support the planetary interpretation of the detected transit signals. The pair of planets have estimated equilibrium temperatures of approximately 400 K, with stellar insolations of 3.23 and 1.73 S⊕, placing them in the Venus zone. The planets also lie in a radius regime signaling the transition between rock-dominated and volatile-rich compositions. They are thus prime targets for follow-up mass measurements to better understand the properties of warm, transition-radius planets. The relatively long orbital periods of these two planets provide crucial data that can help shed light on the processes that shape the composition of small planets orbiting M dwarfs.

Item Type: Article
Subjects: Science Repository > Physics and Astronomy
Depositing User: Managing Editor
Date Deposited: 15 Nov 2023 07:04
Last Modified: 15 Nov 2023 07:04
URI: http://research.manuscritpub.com/id/eprint/3486

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