Near-Earth objects (NEOs) represent one of the most intriguing populations of Solar System bodies. These objects appear heterogeneous in all aspects of their physical properties, like shapes, sizes, spin rates, compositions etc. Moreover, as these objects represent also a real threat to the Earth, a good knowledge of their properties and composition is the necessary first step to evaluate mitigation techniques and to understand their origin and evolution. In the last few years we have started a long-term spectroscopic investigation in the visible and near-infrared (NIR) region of NEOs. The observations have been performed with the ESO NTT in La Silla and the TNG in Canary Islands, obtaining about 80 spectra so far. We discuss the taxonomic classification of the observed NEOs, their links with meteorites and possible influences of space weathering.
SINEO: Spectroscopic Investigation of Near Earth Objects
LAZZARIN, MONICA;MARCHI, SIMONE;MAGRIN, SARA;BARBIERI, CESARE
2004
Abstract
Near-Earth objects (NEOs) represent one of the most intriguing populations of Solar System bodies. These objects appear heterogeneous in all aspects of their physical properties, like shapes, sizes, spin rates, compositions etc. Moreover, as these objects represent also a real threat to the Earth, a good knowledge of their properties and composition is the necessary first step to evaluate mitigation techniques and to understand their origin and evolution. In the last few years we have started a long-term spectroscopic investigation in the visible and near-infrared (NIR) region of NEOs. The observations have been performed with the ESO NTT in La Silla and the TNG in Canary Islands, obtaining about 80 spectra so far. We discuss the taxonomic classification of the observed NEOs, their links with meteorites and possible influences of space weathering.Pubblicazioni consigliate
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