Remote spectroscopic identification of carbonaceous chondrite mineralogies: Applications to Ceres and Pallas

Harold P. Larson, Michael A. Feierberg, Uwe Fink, Howard A. Smith

Research output: Contribution to journalArticle

37 Scopus citations

Abstract

High-resolution spectroscopic observations of asteroids Ceres and Pallas have been obtained in the 1.0- to 2.6-μm region. Combined with previous spectralmeasurements at other wavelengths, this work presents the broadband spectral reflectances of these asteroids over the 0.4 to 3.6-um region. This extended coverage permits new analyses of the surface mineralogies of these objects. Using laboratory comparison spectra of meteorites and mixtures of terrestrial minerals, the surfaces of Ceres and Pallas are consistent with mixtures of opaques and hydrated silicates, such as are found in types C1 and C2 meteorites. This research emphasizes the importance of the 3-um spectral region for studying by remote methods the relationship of carbonaceous chondrite mineralogies to asteroid surfaces.

Original languageEnglish (US)
Pages (from-to)257-271
Number of pages15
JournalIcarus
Volume39
Issue number2
DOIs
StatePublished - Aug 1979

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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