Spectral mixing models of S-Type asteroids

Details Spectral mixing models of S-Type asteroids Spectral mixing models of S-Type asteroids

Mar 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993lpi....24..303c&link_type=abstract

In Lunar and Planetary Inst., Twenty-fourth Lunar and Planetary Science Conference. Part 1: A-F p 303-304 (SEE N94-12015 01-91)

Astronomy and Astrophysics

Astronomy

Absorption Spectra, Albedo, Asteroids, Meteoritic Composition, Spectral Reflectance, Spectrum Analysis, Absorption Spectroscopy, Infrared Reflection, Sky Surveys (Astronomy)

Scientific paper

This paper presents the results of an attempt to determine S-Type asteroid mineralogies with the use of Hapke theory spectral mixing modelling. Previous attempts to understand the spectral variations present in this single class of asteroids have concentrated on spectral parameters such as absorption band center wavelengths, band area ratios, and geometric albedos. The procedure taken here is to utilize the Hapke spectral reflectance model to calculate single scatter albedo as a function of wavelength for a suite of candidate end-member materials. These materials are then mixed linearly in single scatter albedo space, and the mixture is converted, assuming intimate particle mixing, back to reflectance for the spectrum matching routine. A total of 39 S-Type asteroids selected from the Bell et al. survey have been matched with mixture model spectra.

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