Par Valentin CHRISTIAEN (LFEMI)
Abstract :
The ALMA sub-mm interferometer and the latest generation of infrared high-contrast imagers have been revolutionising our view of planet formation during the last decade. Protoplanetary disks have now been imaged at a high level of detail, revealing a wealth of structures including cavities, annular gaps, spiral arms, shadows and asymmetries. In order to connect these structures to forming planets and provide the most stringent constraints to planet formation theories, we need to directly image and characterize newborn planets in these discs. I will first highlight the challenges involved in this endeavour, and will then focus on what we learned with the discovery and follow-up of the very first protoplanets – PDS 70 b and c. I will show the latest results obtained with the JWST. I will subsequently present the latest progress in the search for additional protoplanets. Finally, I will discuss the prospects opened by the upcoming advent of the Extremely Large Telescope and its METIS mid-IR instrument in the field of planet formation and direct exoplanet imaging.
Lieu : Salle Cassini, AIM