Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009dps....41.3407l&link_type=abstract
American Astronomical Society, DPS meeting #41, #34.07
Astronomy and Astrophysics
Astronomy
1
Scientific paper
In the present work we define a taxonomic scheme based on the SDSS
colors [1] that seeks to be compatible with previous taxonomic schemes based on spectroscopic data [2,3]. This taxonomy is then applied to the asteroids listed on the forth release of the SDSS Moving Object Catalogue (MOC4) and to meteorite spectra from the RELAB database. These results are then used to analyze the distributions of taxonomies in the Main Asteroid Belt and, based on it, make inferences about the distribution of mineralogies. We also use the large number of asteroids that were observed multiple times in the MOC4 to analyze the issue of taxonomic variations among observations. Since no conclusions about mineralogy can be draw based solely on taxonomy, the ultimate goal here is to identify interesting targets for NIR spectroscopic follow up.
[1] Ivezic et al., AJ 122, 2749 (2001)
[2] Tholen and Barucci, Asteroids II, (1989)
[3] Bus and Binzel, Icarus 158, 146 (2002)
Carvano Jorge
Hasselmann P. A.
Lazzaro Daniela
Mothé-Diniz Thais
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