Artículo

TOI-908: a planet at the edge of the Neptune desert transiting a G-type star

Hawthorn, Faith; Bayliss, Daniel; Armstrong, D.J.; Fernández Fernández, Jorge; Osborn, Ares; Sousa, Sergio G.; Adibekyan, Vardan; Davoult, Jeanne; Collins, Karen A.; Alibert, Yann; Barros, Susana C. C.; Bouchy, François; Brogi, Matteo; Ciardi, David R.; Daylan, Tansu; Delgado Mena, Elisa; Demangeon, Olivier D. S.; Diaz, Rodrigo FernandoIcon ; Gan, Tianjun; Horne, Keith; Hoyer, Sergio; Jenkins, Jon M.; Jensen, Eric L. N.; Kielkopf, John F.; Kostov, Veselin; Latham, David W.; Levine, Alan M.; Lillo Box, Jorge; Nielsen, Louise D.; Osborn, Hugh P.; Ricker, George R.; Rodrigues, Jose; Santos, Nuno C.; Schwarz, Richard P.; Seager, Sara; Serrano, Juan RamónIcon ; Shporer, Avi; Stockdale, Chris; Strøm, Paul A.; Tenenbaum, Peter; Udry, Stephane; Wheatley, Peter J.; Winn, Joshua N.; Ziegler, Carl
Fecha de publicación: 06/2023
Editorial: Wiley Blackwell Publishing, Inc
Revista: Monthly Notices of the Royal Astronomical Society
ISSN: 0035-8711
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:

Resumen

We present the discovery of an exoplanet transiting TOI-908 (TIC-350153977) using data from TESS sectors 1, 12, 13, 27, 28, and 39. TOI-908 is a T = 10.7 mag G-dwarf (Teff = 5626 ± 61 K) solar-like star with a mass of 0.950 ± 0.010 M⊙ and a radius of 1.028 ± 0.030 R⊙. The planet, TOI-908 b, is a 3.18 ± 0.16 R⊕ planet in a 3.18 d orbit. Radial velocity measurements from HARPS reveal TOI-908 b has a mass of approximately 16.1 ± 4.1 M⊕, resulting in a bulk planetary density of g cm-3. TOI-908 b lies in a sparsely populated region of parameter space known as the Neptune desert. The planet likely began its life as a sub-Saturn planet before it experienced significant photoevaporation due to X-rays and extreme ultraviolet radiation from its host star, and is likely to continue evaporating, losing a significant fraction of its residual envelope mass.
Palabras clave: PLANETS AND SATELLITES: DETECTION , STARS: INDIVIDUAL: TOI-908 (TIC-350153977, GAIA DR3 46192380870592067842) , TECHNIQUES: PHOTOMETRIC , TECHNIQUES: RADIAL VELOCITIES
 
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
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URI: http://hdl.handle.net/11336/229090
URL: https://academic.oup.com/mnras/article/524/3/3877/7205300
DOI: http://dx.doi.org/10.1093/mnras/stad1840
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Articulos (ICIFI)
Articulos de INSTITUTO DE CIENCIAS FISICAS
Citación
Hawthorn, Faith; Bayliss, Daniel; Armstrong, D.J.; Fernández Fernández, Jorge; Osborn, Ares; et al.; TOI-908: a planet at the edge of the Neptune desert transiting a G-type star; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 524; 3; 6-2023; 3877-3893
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