Global calculations of density waves and gap formation in protoplanetary disks using a moving Mesh

Paul C. Duffell; Andrew I. MacFadyen

doi:10.1088/0004-637X/755/1/7

Global calculations of density waves and gap formation in protoplanetary disks using a moving Mesh

Paul C. Duffell, Andrew I. MacFadyen

Research output: Contribution to journal › Article › peer-review

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.

Original language	English (US)
Article number	7
Journal	Astrophysical Journal
Volume	755
Issue number	1
DOIs	https://doi.org/10.1088/0004-637X/755/1/7
State	Published - Aug 10 2012

Keywords

hydrodynamics
methods: numerical
planet-disk interactions
planets and satellites: formation
protoplanetary disks

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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AB - 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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KW - planet-disk interactions

KW - planets and satellites: formation

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Global calculations of density waves and gap formation in protoplanetary disks using a moving Mesh

Abstract

Keywords

ASJC Scopus subject areas

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