Minor planet spectrometry: 4 Vesta - The spectral range of 0.48-0.55 microns

Details Minor planet spectrometry: 4 Vesta - The spectral range of 0.48-0.55 microns Minor planet spectrometry: 4 Vesta - The spectral range of 0.48-0.55 microns

Dec 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986azh....63.1179g&link_type=abstract

Astronomicheskii Zhurnal (ISSN 0004-6299), vol. 63, Nov.-Dec. 1986, p. 1179-1182. In Russian.

Astronomy and Astrophysics

Astronomy

Absorption Spectra, Astronomical Spectroscopy, Planetology, Vesta Asteroid, Basalt, Metal Ions, Positive Ions, Spectral Bands, Spectral Reflectance

Scientific paper

Two absorption bands at 0.51 and 0.54 microns were found in the 4 Vesta spectrum which was obtained with a 20.48 A spectral resolution. These bands are the result of spin-forbidden transitions of d-electrons of Fe(2+) ions in pyroxene. Analogous absorption bands are present only in basaltic achondritic spectra. It is concluded that detailed spectrophotometry of the S-, R-, and U-asteroids in the 0.48-0.6 micron spectral range can provide information on the presence of a certain kind of differentiated matter on their surfaces.

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