Ultraviolet reflectance properties of asteroids

Details Ultraviolet reflectance properties of asteroids Ultraviolet reflectance properties of asteroids

May 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985icar...62..305b&link_type=abstract

Icarus (ISSN 0019-1035), vol. 62, May 1985, p. 305-318. Research supported by the Science and Engineering Research Council of En

Astronomy and Astrophysics

Astronomy

13

Asteroids, Spectral Reflectance, Ultraviolet Astronomy, Albedo, Iue, Solar Spectra, Spectrum Analysis, Asteroids, Ultraviolet, Reflectance, Optical Properties, Analysis, Iue, Spectra, International Ultraviolet Explorer, Classification, Mineralogy, Surface, Reflectivity, Wavelengths, Absorption, Ceres, Hygiea, Daphne, Thisbe, Davida, Juno, Hebe, Iris, Flora, Metis, Victoria, Interamnia, Eunomia, Massalia, Thalia, Euterpe, Amphitrite, Ausonia, Psyche, Vesta, Hertha, Nysa, Dembowska, Pallas, Nemausa, Antigone,

Scientific paper

An analysis of the UV spectra of 28 asteroids obtained with the Internal Ultraviolet Explorer (IUE) satellite is presented. The spectra lie within the range 2100-3200 A. The results are examined in terms of both asteroid classification and of current ideas concerning the surface mineralogy of asteroids. For all the asteroids examined, UV reflectivity declines approximately linearly toward shorter wavelengths. In general, the same taxonomic groups are seen in the UV as in the visible and IR, although there is some evidence for asteroids with anomalous UV properties and for UV subclasses within the S class. No mineral absorption features are reported of strength similar to the strongest features in the visible and IR regions, but a number of shallow absorptions do occur and may provide valuable information on the surface composition of many asteroids.

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