Abstract

Invited Talk - Splinter PlanetFormation

Thursday, 18 September 2025, 16:15

Star-disk interactions in young Sun-like stars probed with VLTI/GRAVITY

Hugo Nowacki, on behalf of the GRAVITY YSO group
Université Côte d’Azur, Observatoire de la Côte d’Azur, CNRS, Laboratoire Lagrange, France

The inner astronomical unit of protoplanetary disks is known to host dynamic interactions between the star and its environment. These interactions are key to understand the mechanisms that trigger and drive planet formation in the whole disk. In recent years, the advent of very-long baseline optical interferometry made it possible to reach milliarcsecond resolutions and required sensitivity to directly observe the star-disk interaction region for the closest star forming regions. Based on the latest VLTI/GRAVITY results on the matter, along with advanced modeling of the accretion-ejection physics, I will present our current understanding of the structure of these regions for T Tauri stars. Finally, I will draw the perspectives heralded by the upcoming generation of optical interferometers.