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arXiv · 1202.5608

Global Calculations of Density Waves and Gap Formation in Protoplanetary Disks using a Moving Mesh

Paul C. Duffell·Andrew I. MacFadyen
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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.

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Paul C. Duffell, Andrew I. MacFadyen. 2012-02-25. Global Calculations of Density Waves and Gap Formation in Protoplanetary Disks using a Moving Mesh. https://doi.org/10.1088/0004-637x/755/1/7

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