Global Calculations of Density Waves and Gap Formation in Protoplanetary Disks using a Moving Mesh
Earth and Planetary Astrophysics
2015-06-04 v2 Computational Physics
Fluid Dynamics
Abstract
We calculate the global quasi-steady state of a thin disk perturbed by a low-mass protoplanet orbiting at a fixed radius using extremely high-resolution numerical integrations of Euler's equations in two dimensions. The calculations are carried out using a moving computational domain, which greatly reduces advection errors and allows for much longer time-steps than a fixed grid. We calculate the angular momentum flux and the torque density as a function of radius and compare them with analytical predictions. We discuss the quasi-steady state after 100 orbits and the prospects for gap formation by low mass planets.
Keywords
Cite
@article{arxiv.1202.5608,
title = {Global Calculations of Density Waves and Gap Formation in Protoplanetary Disks using a Moving Mesh},
author = {Paul C. Duffell and Andrew I. MacFadyen},
journal= {arXiv preprint arXiv:1202.5608},
year = {2015}
}
Comments
Accepted to ApJ