Catching forming giant planets -- hydrodynamic simulations and observational efforts of the circumplanetary disks

Judit Szulagyi, ETH Zuerich - 24.7.17

Abstract:

Recently, younger and younger planets were detected, often still embedded in gaseous circumstellar disks. In this evolutionary phase, giant planets are still accreting from their own disk, the circumplanetary disk. Even though there is no direct observation of this disk yet, the trace of hot gas around the planet has already been detected by H-alpha emission and extended thermal emission via direct imaging technique. To interpret these observations and to prepare for future ones, hydrodynamic simulations of circumplanetary disks has to be carried out to unveil their basic characteristics (mass, temperature, entropy, luminosity, accretion rate). In my talk, I will present our newest radiative hydrodynamic simulations of circumplanetary disks, discuss how we can detect them, and how they influence the planets' properties derived from observations, as well as show our recent ALMA data on the subject.