SOS: the visible spectroscopic survey of 820 asteroids |
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Authors: | D. Lazzaro,C.A. Angeli,T. Mothé -Diniz,M. Florczak |
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Affiliation: | a Observatório Nacional, R. Gal. José Cristino 77, 20921-400 Rio de Janeiro, Brazil b CEFET, Departamento Física, Av. Sete de Setembro 3165, 8230-091 Curitiba, Brazil |
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Abstract: | We present the results of a visible spectroscopic survey of 820 asteroids carried on between November 1996 and September 2001 at the 1.52 m telescope at ESO (La Silla). The instrumental set-up allowed an useful spectral range of about 4900 Å<λ<9200 Å. The global spatial distribution of the observed asteroids covers quite well all the region between 2.2 and 3.3 AU though some concentrations are apparent. These are due to the fact that several sub-sets of asteroids, such as families and groups, have been selected and studied during the development of the survey. The observed asteroids have been classified using the Tholen and the Bus taxonomies which, in general, agree quite well. |
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Keywords: | Asteroids Asteroids, composition Spectroscopy Surfaces, asteroids |
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