Seminars at FGG
From young planets to atmospheric evolution - A dive into the GAPS YOs and ArMS Surveys
Speaker: Ilaria Carleo (INAF-Osservatorio di Padova)
Date and time: 2025-04-10 11:30
The Global Architecture of Planetary Systems (GAPS) project brings together much of the Italian exoplanet research community, with the goal of advancing our understanding of planetary system formation and evolution. In this seminar, I will present recent developments from two sub-programs of GAPS2: GAPS-Young Objects (GAPS-YO) and GAPS-Ariel Mass Survey (GAPS-ArMS) . GAPS-YO focuses on the discovery and characterization of exoplanets orbiting young stars, which are crucial for studying the early stages of planetary evolution and the role of high-energy stellar irradiation. The program surveys members of young and intermediate-age stellar associations and conducts HARPS-N radial velocity follow-up of young transiting candidates, primarily identified by NASA’s TESS mission. We will discuss broader trends emerging from the sample, including the influence of stellar age and photo-evaporation on the mass-radius relationship. GAPS-ArMS complements this work by modeling the radius evolution of young exoplanets to better understand the formation and atmospheric evolution of small-radius planets. The program aims to identify optimal targets for atmospheric characterization with the upcoming Ariel space telescope, shedding light on planet population demographics and atmospheric evolution timescales. Together, these programs contribute to a more complete picture of planetary system architecture across time, laying the groundwork for future observational campaigns and theoretical advancements.