EXOA12 | Tracing the formation paths of young exoplanets

EXOA12

Tracing the formation paths of young exoplanets
Conveners: Nicolas Lodieu, Maria Rosa Zapatero Osorio | Co-conveners: Victor Sanchez Bejar, Manuel Mallorquin Diaz

The mechanisms of formation, evolution, and migration of giant and rocky planets remain
unconstrained despite the huge progress of the field since the discovery of the first planets in 1995. Understanding planet formation processes is key to improve our knowledge on the origin of planetary systems and our Solar System. The study of exoplanets at young ages (below the age of the Hyades ~600 Myr) is fundamental to determine the timescale of the formation of planets and constrain the dynamical models of planet evolution.

Many exoplanets orbiting young stars have been reported over the past few years in young stellar forming regions, open clusters and moving groups have well-constrained ages and well-determined physical properties (mass, radius, density, temperature), essential to refine evolutionary models based on orbital migration or photo-evaporation. The availability of space-borne missions (Kepler, TESS, Gaia, JWST), high-resolution and high-precision spectrographs (e.g. HARPS, CARMENES, ESPRESSO, SPIRou, etc...), and (sub)-millimetre facilities (e.g. JCMT, SMA, ALMA) have revolutionised the field over the past years.

The goals of this session are to offer a review on the observational techniques and theoretical modelling efforts in the field of young exoplanets, highlight the latest discoveries, and propose a way forward to gain a better understanding of how planetary systems form and evolve. We will divide the session with dedicated contributions on direct imaging, radial velocity, transit timing variation, and transit spectroscopy as well as computer modelling.