Exoplanets in Binary Systems

M. CERIONI; M. GOMEZ; A. AHUMADA

Córdoba

Congreso; FOF meeting 2019; 2019

IATE y Observatorio Astronómico de Córdoba

During the last decade, the number of discovered planets in binary stars has increased significantly, raising a number of issues related to their dynamical stability, origin and final fate. Our aim is to derive observational constraints to help address some of the questions concerning planets in binaries stars. In this contribution we use data from public archives and from the literature to construct a database collecting dynamical as well as physical properties of planets and host stars. We analyze the distribution of these properties, searching for correlations and confronting our findings with the corresponding properties or correlations for single-star planets. As it would have been expected, circumstellar (or p-type) planets distributions resemble properties of single-star planets. On the contrary, in circumbinary (or s-type) planets, the binary nature of the host stars account for their peculiarities. In all the analyzed situations, likely observational bias due to the detection techniques (radial velocities, transits and/or direct images) are taken into account to validate our findings and/or to caution against possible misleading correlations.