Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010dps....42.3907s&link_type=abstract
American Astronomical Society, DPS meeting #42, #39.07; Bulletin of the American Astronomical Society, Vol. 42, p.1033
Astronomy and Astrophysics
Astronomy
Scientific paper
The Dawn mission will be entering orbit about Vesta in July 2011, providing new insights into one of perhaps two surviving protoplanetary bodies in the asteroid belt. Vesta is differentiated and still possesses its basaltic crust. A giant impact excavated a large crater covering its modern south pole, forming a large family of asteroids and a source of the HED meteorites on Earth. Dawn's Visible-Infrared mapping spectrometer (VIR) is provided by the Italian Space Agency (ASI INAF) and will map the surface of Vesta from 0.25 to 5 microns. Vesta's surface will be sufficiently warm in its subsolar region that there should be measurable thermal emission at the long-wavelength end of VIR's sensitivity, allowing surface thermophysical properties at central and southern latitudes to be constrained, distinguishing between rocky and dusty surfaces with good spatial resolution.
Li Jiying
Sykes Mark V.
Tricarico Pasquale
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