Detailed stellar and planetary characterization of Kepler systems from high-quality Gemini-GRACES spectra

JOFRE E.

Ciudad de México

Jornada; Coloquio Departamento de Estrellas y Medio Interestelar; 2019

UNAM

Our understanding of exoplanets is strongly linked to our knowledge of a series of fundamental parameters of their host stars. In particular, the mass and radius of a transiting planet depend critically on the mass and radius of the parent star. These physical stellar properties, in turn, depend on the precise measurement of the atmospheric parameters of the star, which can be derived from high-quality spectra. Based on Gemini-GRACES high resolution and high signal-to-noise ratio spectra, in this contribution, we present refined stellar and planetary parameters of two Kepler multi-planet systems.