Torques on low-mass objects embedded in discs in eccentric orbits
Abstract
We consider a gravitational perturber on an eccentric orbit, embedded in a gaseous disc. We compare the eccentricity damping timescale $t_\mathrm{e}$ measured in numerical simulations with the value predicted using the dynamical friction framework. We find that the analytic estimate of $t_\mathrm{e}$ based on considerations of dynamical friction is more accurate than previously thought.
- Publication:
-
Boletin de la Asociacion Argentina de Astronomia La Plata Argentina
- Pub Date:
- August 2020
- Bibcode:
- 2020BAAA...61C..71S
- Keywords:
-
- accretion;
- accretion discs;
- black hole physics;
- planet--disc interactions;
- hydrodynamics;
- protoplanetary discs