Volume 456, Number 2, September III 2006
|Page(s)||775 - 781|
|Section||Planets and planetary systems|
|Published online||31 August 2006|
Basaltic asteroids in the Near-Earth Objects population: a mineralogical analysis
Observatório Nacional - MCT, Rua Gal. José Cristino 77, Rio de Janeiro, 20921-400 RJ, Brazil e-mail: firstname.lastname@example.org
2 Instituto de Astrofísica de Canarias, c/ vía Láctea s/n, 38200 La Laguna, Tenerife, Spain
3 Isaac Newton Group, PO Box 321, 38700 Santa Cruz de La Palma, La Palma, Spain
Accepted: 20 April 2006
Aims.We present reflectance spectra of three V-type Near-Earth Objects obtained at the 3.6 m Telescopio Nazionale Galileo and at the 2.5 m Nordic Optical Telescope covering the near-infrared and visible range, respectively. The range from 0.5 to 2.5 μm, encompassing the 1 and 2 μm pyroxene features, allows a mineralogical characterization of these asteroids.
Methods.A preliminary analysis using the classical methods has been applied to establish some constraints on the surface mineralogy of these objects. Then, the Modified Gaussian Method was applied to gain further insight on the possible mineral components present in the surface of the objects.
Results.The comparison between these basaltic asteroids in near Earth orbits and the achondrite basaltic meteorites shows a quite clear mineralogical link, corroborating the long-standing hypothesis of the Near-Earth Objects population as the immediate source of these meteorites.
Key words: minor planets, asteroids
© ESO, 2006
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.