Simultaneous formation of solar system giant planets

Details Simultaneous formation of solar system giant planets Simultaneous formation of solar system giant planets

Oct 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011epsc.conf.1819g&link_type=abstract

EPSC-DPS Joint Meeting 2011, held 2-7 October 2011 in Nantes, France. http://meetings.copernicus.org/epsc-dps2011, p.1819

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Scientific paper

In the framework of the "Nice model" [1], we compute the formation of the solar system giant planets by concurrent accretion of solids and gas, and study the dependence of this process on the surface profile of the protoplanetary disk and the size distribution of the accreted planetesimals. We focus on the conditions that lead to the simultaneous formation of two massive cores, corresponding to Jupiter and Saturn, which should be able to reach the cross-over mass (where the mass of the envelope equals the mass of the core, and gaseous runway starts), while two other cores should be able to grow up to Uranus and Neptune's current masses. We find that the simultaneous formation of the giant planets is favored by flat surface density profiles and by the accretion of relatively small planetesimals.

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