Spectrometry of minor planets. 347 Pariana: spectral region 0.48 - 0.57 μm.

Details Spectrometry of minor planets. 347 Pariana: spectral region 0.48 - 0.57 μm. Spectrometry of minor planets. 347 Pariana: spectral region 0.48 - 0.57 μm.

Dec 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995sosyr..29..433s&link_type=abstract

Solar System Research, Vol. 29, No. 6, p. 433 - 438

Physics

1

Minor Planets: Spectrophotometry

Scientific paper

Absorption bands, which are identified with the Fe2+ cation in the crystalline structure of pyroxene, were detected in the spectrum of the M-asteroid 347 Pariana recorded in the spectral region 0.48 - 0.57 μm with a step of 1.08×10-3μm. The position of the center of the band at 0.505 μm in the spectrum is used to determine the type of pyroxenes. These are ferrous and calcium clinopyroxenes (of the hedenbergite and ferrohedenbergite types), which may occur on the surface of S2- and S3-asteroids. The simulation of the spectra of M-asteroids by calculating the spectrum of a mixture of light (of the S3 type) and dark substances is used to conclude that the absence of an absorption band near 1 μm in the colorimetric spectra of M-asteroids is not sufficient evidence to support the lack of ferrous silicates on their surfaces.

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