TOI 4201 b and TOI 5344 b: Discovery of Two Transiting Giant Planets around M-dwarf Stars and Revised Parameters for Three Others

Bibcode
2023AJ....166..163H
DOI
10.3847/1538-3881/acf56e
Hartman, J. D.; Bakos, G. Á.; Csubry, Z.; Howard, A. W.; Isaacson, H.; Giacalone, S.; Chontos, A.; Narita, N.; Fukui, A.; de Leon, J. P.; Watanabe, N.; Mori, M.; Kagetani, T.; Fukuda, I.; Kawai, Y.; Ikoma, M.; Palle, E.; Murgas, F.; Esparza-Borges, E.; Parviainen, H.; Bouma, L. G.; Cointepas, M.; Bonfils, X.; Almenara, J. M.; Collins, Karen A.; Collins, Kevin I.; Relles, Howard M.; Barkaoui, Khalid; Schwarz, Richard P.; Mourad, Ghachoui; Timmermans, Mathilde; Dransfield, Georgina; Burdanov, Artem; de Wit, Julien; Jehin, Emmanuël; Triaud, Amaury H. M. J.; Gillon, Michaël; Benkhaldoun, Zouhair; Horne, Keith; Sefako, Ramotholo; Jordán, A.; Brahm, R.; Suc, V.; Howell, Steve B.; Furlan, E.; Schlieder, J. E.; Ciardi, D.; Barclay, T.; Gonzales, E. J.; Crossfield, I.; Dressing, C. D.; Goliguzova, M.; Tatarnikov, A.; Ricker, George R.; Vanderspek, Roland; Latham, David W.; Seager, S.; Winn, Joshua N.; Jenkins, Jon M.; Striegel, Stephanie; Shporer, Avi; Vanderburg, Andrew; Levine, Alan M.; Kostov, Veselin B.; Watanabe, David
Referencia bibliográfica

The Astronomical Journal

Fecha de publicación:
10
2023
Número de autores
65
Número de autores del IAC
7
Número de citas
8
Número de citas referidas
5
Descripción
We present the discovery from the TESS mission of two giant planets transiting M-dwarf stars: TOI 4201 b and TOI 5344 b. We also provide precise radial velocity measurements and updated system parameters for three other M dwarfs with transiting giant planets: TOI 519, TOI 3629, and TOI 3714. We measure planetary masses of 0.525 ± 0.064 M J, 0.243 ± 0.020 M J, 0.689 ± 0.030 M J, 2.57 ± 0.15 M J, and 0.412±0.040 M J for TOI 519 b, TOI 3629 b, TOI 3714 b, TOI 4201 b, and TOI 5344 b, respectively. The corresponding stellar masses are 0.372 ± 0.018 M ☉, 0.635 ± 0.032 M ☉, 0.522 ± 0.028 M ☉, 0.626 ± 0.033 M ☉, and 0.612 ± 0.034 M ☉. All five hosts have supersolar metallicities, providing further support for recent findings that, like for solar-type stars, close-in giant planets are preferentially found around metal-rich M-dwarf host stars. Finally, we describe a procedure for accounting for systematic errors in stellar evolution models when those models are included directly in fitting a transiting planet system.
Proyectos relacionados
Image withthe projects' name
Exoplanetas y Astrobiología
La búsqueda de vida en el Universo se ha visto impulsada por los recientes descubrimientos de planetas alrededor de otras estrellas (los llamados exoplanetas), convirtiéndose en uno de los campos más activos dentro de la Astrofísica moderna. En los últimos años los descubrimientos cada vez más numerosos de nuevos exoplanetas y los últimos avances
Enric
Pallé Bago
En ejecución
Tipo
Con árbitro
Sistema Solar y Sistemas Planetarios (SEYSS)
Sistemas de exoplanetas

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