Surface Composition of Vesta: Issues and Integrated Approach

Details Surface Composition of Vesta: Issues and Integrated Approach Surface Composition of Vesta: Issues and Integrated Approach

Dec 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011ssrv..163..117p&link_type=abstract

Space Science Reviews, Volume 163, Issue 1-4, pp. 117-139

Computer Science

4

Vesta Composition, Dawn Mission, Great South Crater, Space Weathering, Volatiles On Asteroids

Scientific paper

The instruments on the Dawn spacecraft are exceptionally well suited to characterize and map the surface composition of Vesta in an integrated manner. These include a framing camera with multispectral capabilities, a high spectral resolution near-infrared imaging spectrometer, and a gamma-ray and neutron spectrometer. Three examples of issues addressed at Vesta are: (1) What is the composition of Vesta’s interior and differentiation state as exposed by the Great South Crater? (2) How has space weathering affected Vesta, both globally and at a local scale? and (3) Are volatiles or hydrated material present on Vesta’s surface? We predict that Dawn finds many surprises, such as an olivine-bearing mantle exposed near the south-pole, a weakly or un-weathered surface that has been relatively recently resurfaced, and a very thin layer of surficial volatiles derived from interaction with the solar wind.

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