FM1p.27 — Posssibles sites for the formation of the planet at the γ-Cephei system

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Aug 10th at 6:00 PM until 7:30 PM

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Author(s): Ricardo Aparecido de Moraes1, Ernesto Vieira Neto1

Institution(s): 1. Universidade Estadual Paulista (UNESP)

In the past years more and more extra-solar planets were discovered in binary star systems. All the planets discovered orbit the more massive star, and the companion star acts as a disturber body, these type of orbits are called S-type orbit, if the planet orbits the two stars the orbit is call P-type. It is not easy to study the formation of a planetary system around a single star, therefore it is a greater challenge to study the formation of a planetary system in a binary star system due to the gravitational effects of the secondary star, which is very close to the host star. In this work we will try to find the possibles sites for formation of the planetary system around the binary star system γ-Cephei adding the effects of the secondary star using fully hydrodynamical simulations to reproduce the formation of the planet, far from its real position, and its migration to near of its present position. We also analyze the eccentricity of the planet to see if our results are consistent with what is observed.