K2-237 b and K2-238 b: Discovery and characterization of two new transiting hot Jupiters from K2

M. G. Soto, M. R. Díaz, J. S. Jenkins, F. Rojas, N. Espinoza, R. Brahm, H. Drass, M. I. Jones, M. Rabus, J. Hartman, P. Sarkis, A. Jordán, R. Lachaume, B. Pantoja, M. Vučković, D. R. Ciardi, I. Crossfield, C. Dressing, E. Gonzales, L. Hirsch

Producción científica: Contribución a una revistaArtículorevisión exhaustiva

12 Citas (Scopus)

Resumen

We report the discovery of two hot Jupiters orbiting the stars K2-237 and K2-238. We used photometric data from Campaigns 11 and 12 of the Kepler K2 mission and radial velocity data obtained using the HARPS, FEROS, and CORALIE spectrographs. K2-237 b and K2-238 b have masses of 1.60-0.11+0.11 and 0.86+-0.120.13MJup, radii of 1.65-0.08+0.07 and 1.30-0.14+0.15 RJup, and are orbiting their host stars in 2.18-and 3.20-d orbits, respectively. The large radius of K2-237 b leads us to conclude that this candidate corresponds to a highly inflated hot Jupiter. K2-238 b has a radius consistent with theoretical models, considering the high incident flux falling on the planet. We consider K2-237 b to be an excellent system for follow-up studies, since not only is it very inflated, but it also orbits a relatively bright star (V = 11.6).

Idioma originalInglés
Páginas (desde-hasta)5356-5365
Número de páginas10
PublicaciónMonthly Notices of the Royal Astronomical Society
Volumen478
N.º4
DOI
EstadoPublicada - 21 ago. 2018
Publicado de forma externa

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