Three-dimensional Accretion onto an Embedded Protoplanet

Details Three-dimensional Accretion onto an Embedded Protoplanet Three-dimensional Accretion onto an Embedded Protoplanet

Sep 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008dps....40.1202d&link_type=abstract

American Astronomical Society, DPS meeting #40, #12.02; Bulletin of the American Astronomical Society, Vol. 40, p.405

Astronomy and Astrophysics

Astronomy

Scientific paper

We study the accretion from a primordial gaseous disk onto an embedded planet. Our code solves the local Hill equations in Cartesian and polar coordinates centered on the planet using an adaptive grid with additional levels of refinement inside the Hill sphere. A circumplanetary disk forms inside the Hill radius while spiral arms are created for the case of massive planets extending to the point where the fluid becomes subsonic. We find that the accretion rates in the three-dimensional calculations are of the same order as in the two-dimensional approximation for planet masses between 1-5 Earth masses.

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