Computer Science
Scientific paper
Oct 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011epsc.conf..637h&link_type=abstract
EPSC-DPS Joint Meeting 2011, held 2-7 October 2011 in Nantes, France. http://meetings.copernicus.org/epsc-dps2011, p.637
Computer Science
Scientific paper
The presence of water and/or hydrated minerals on asteroids constrains solar system formation models and helps our understanding of the relationship of asteroids to meteorites. We have collected observations of main-belt asteroids at 0.7 and 3 microns to clarify the relationship between these bands and determine if the 0.7-micron band is a reliable proxy for hydrated minerals on asteroids. We find that if the 0.7-micron band is seen, the 3-micron band is almost always there as well. However, even when the 0.7-micron band is not seen, nearly 50% of the asteroids have the 3-micron band, and thus there are hydrated minerals. The presence of the 0.7- micron band places a lower limit on the number of asteroids with hydrated minerals. The correlation of these two bands differs between the C-complex and X-complex taxonomic groups as defined by DeMeo [1], and interesting trends are found. On more distant asteroids, the 3-micron absorption band may be due to ice rather than hydrated silicates [2, 3, 4].
Fernandez Yan R.
Howell Ellen S.
Magri Christopher
Nolan Michael C.
Rivkin Andrew S.
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