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Speaker: S. Benatti (INAF-OAPA)

Titolo: Observation of young objects with GAPS2 to understand the evolution of exo-planetary systems

Abstract: The GAPS (Global Architecture of Planetary Systems) project gathers a large part of the Italian community working on exoplanets since 2012. After a 5 years-radial velocity survey with HARPS-N at TNG, the team obtained important results and became a solid and competitive community.
Taking advantage of the integration of GIARPS (GIANO-B & HARPS-N) at TNG, the renewed GAPS2 program focused its attention on the first stages of planetary systems formation.
Recent results suggest that we could expect a large fraction of hot Jupiters around very young stars with respect to the old ones (Donati et al. 2016, Yu et al. 2017), but the current statistic is far to be complete. The observation of this kind of objects allows us to study the ongoing planet formation and to compare the planet properties at different time scales, helping to investigate the role played by the migration mechanisms, the formation sites and the orbit evolution on their observed diversity.
With these purposes, the Young Objects (YO) sub-program of GAPS2 aims to search for planets around stars in young associations.In this talk, I’ll present the main objectives of the program, our preliminary results, and I’ll show our synergy with the NASA-TESS satellite, that started to provide young transiting planet candidates, to be confirmed and characterized with the radial velocities technique.