Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007dps....39.4205d&link_type=abstract
American Astronomical Society, DPS meeting #39, #42.05; Bulletin of the American Astronomical Society, Vol. 39, p.496
Astronomy and Astrophysics
Astronomy
Scientific paper
We study the gravitational interaction between a protoplanetary disk and an embedded high-mass planet using several grid-based and smoothed particle hydrodynamics (SPH) schemes. Jupiter and Neptune mass planets are kept on a fixed circular orbit during several hundred orbital periods. We run tests for inviscid and viscous disks with Navier-Stokes viscosity of ν=10-5. We find good agreement between our codes. The averaged density profiles agree within 5%. SPH results have comparable shape of the gap and weaker planetary wakes than grid-based codes. Torque contributions from different parts in the disk and mass losses are monitored with high temporal resolution. High-density vortices are generated close to the coorbital region in the inviscid runs in agreement with the linear analysis. As the vortices move along the gap they introduce strong perturbations on the torque exerted on the planet. The smoothed total torques acting on the planet agree within a factor of 2 and the disk masses agree within 10% after 200 orbits.
Artymowicz Pawel
Ciecielag Pawel
Cresswell Paul
D'Angelo Gennaro
de Val-Borro Miguel
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