Accretion of planetary embryos in the inner and outer solar system

Details Accretion of planetary embryos in the inner and outer solar system Accretion of planetary embryos in the inner and outer solar system

Aug 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008phst..130a4021w&link_type=abstract

Physica Scripta, Volume 130, Issue , pp. 014021 (2008).

Physics

13

Scientific paper

Numerical simulations of accretion of planetary embryos from small planetesimals are described. In the terrestrial region, runaway growth proceeds as a wave propagating outward, producing an 'oligarchy' of embryos. The efficiency of accretion, i.e. the mass loss due to fragmentation, depends on the initial size of the planetesimals. In the outer region of the disk, the growth of embryos is not a localized process. At larger heliocentric distances, gravitational scattering and long-range perturbations become more significant, and tend to inhibit runaway growth.

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