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Reflectance spectrophotometry (about 0.5-1.0 micron) of oute-belt asteroids - Implications for primitive, organic solar system materialThe surface compositions of outer-belt asteroids were used to obtain information about the origin of these asteroids. High-resolution CCD reflectance spectra of 21 asteroids, primarily P class, were examined for compositional information. Distinct slope changes are observed that suggest that these asteroids are the remnants of a compositional gradation of planetesimals in the outer solar system, which were retained selectively in location when other material was ejected from the solar system. Other data suggest that this gradation could extend through the orbits of Uranus and Neptune.
Document ID
19860044999
Document Type
Reprint (Version printed in journal)
Authors
Vilas, F. (NASA Johnson Space Center Houston, TX; Arizona, University, Tucson, United States)
Smith, B. A. (Arizona, University Tucson, United States)
Date Acquired
August 12, 2013
Publication Date
December 1, 1985
Publication Information
Publication: Icarus
Volume: 64
ISSN: 0019-1035
Subject Category
LUNAR AND PLANETARY EXPLORATION
Funding Number(s)
CONTRACT_GRANT: NGL-03-002-002
Distribution Limits
Public
Copyright
Other