Geophysical evolution of the Themis family parent body

Details Geophysical evolution of the Themis family parent body Geophysical evolution of the Themis family parent body

May 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010georl..3710202c&link_type=abstract

Geophysical Research Letters, Volume 37, Issue 10, CiteID L10202

Physics

8

Planetary Sciences: Solar System Objects: Asteroids, Planetary Sciences: Comets And Small Bodies: Origin And Evolution, Planetary Sciences: Comets And Small Bodies: Interiors (8147)

Scientific paper

We model the geophysical evolution of the Themis family parent body. This study is motivated by the recent detection of water ice at the surface of 24 Themis, the first detection of free water on the surface of an asteroid. The Themis family members display a variety of spectral properties and densities, a possible indication that their parent was differentiated at the time of break-up. Differentiation of the parent body is better explained if it accreted as a mixture of ice within a few My after the production of CAIs. From these models we highlight a number of issues that provide a strong rationale for further ground-based and future space exploration of that family.

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