Computer Science
Scientific paper
Sep 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008epsc.conf..791z&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 Recent research has led to the conclusion that even relatively small bodies like asteroids can be differentiated. Since these small bodies in the early solar system are the building blocks of the terrestrial planets their evolution is of particular interest. Tungsten and nickel isotopic data obtained in various meteorites indicate that some bodies differentiated within the first few million years of the start of the solar system and that a planet wide differentiation took place on larger bodies like the eucrite and the angrite parent bodies 3 and 4 Ma after CAIs, respectively. We then set up a simple numerical model, which simulates the core formation within a planetesimal and compiled a set of differentiation times related to size and interior temperature of small asteroid-like bodies. The model yields core formation times consistent with the chronology inferred from the experimental isotopic data.
Quitté Ghylaine
Ziethe Ruth
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