Computer Science
Scientific paper
Sep 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008epsc.conf..796z&link_type=abstract
European Planetary Science Congress 2008, Proceedings of the conference held 21-25 September, 2008 in Münster, Germany. Online a
Computer Science
Scientific paper
ABSTRACT The formation of a planetary core in terrestrial planets is still not well understood. Since planet differentiation already sets in during planet formation both mechanisms should also be considered simultaneously in a consistent theory. We propose a model in which the dynamics of planetary accretion and core formation are made consistent. The timescale for iron silicate segregation is computed for bodies of different sizes and compared to the typical collision timescale involving these planetesimals. We argue that by the time (or equivalently size of planetesimals) the two timescales become equal, planetary growth proceeds with differentiated bodies only.
Benz Willy
Nyffenegger Oliver
Schröter T.
Ziethe Ruth
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