The accretion process on young forming star: magnetospheric accretion, boundary layer or eruptive outbursts?
Eleonora Fiorellino (INAF - OAC)
Wednesday 15/05/2024 @ 14:30, Sala Antonio Sollima (IV piano Battiferro)
One of the most fascinating and unsolved mysteries in astronomy is related to stars, the fundamental bricks building the Universe. We know that they form from the gravitational collapse of roundish objects made of dust and gas, known as prestellar cores. However, the process by which low mass stars build their mass up to solar masses remains a puzzle. In this talk, I will review the state of the art regarding the accretion process and its driving mechanisms, highlighting the intricate interplay between star and planet formation. I will particularly focus on the recent surveys of accretion rates computed for the early stages of star formation (the protostellar phase), the discovery of new eruptive young stars of the GLORIOUS Collaboration (Gaia science aLerts tO find eRuptIve yOUng stellar objectS) and how their results affect the current accretion scenario. I will discuss the observational challenges we are currently facing to study young stars and explore how these challenges will be addressed using future facilities such as the Square Kilometre Array (SKA) and the Extremely Large Telescope (ELT).