Abstract
A survey of small (<5-10. km diameter) members of the Koronis family shows some objects with visible-wavelength broadband colors consistent with membership in the Q-class (Tholen, D.J. [1984]. Asteroid taxonomy from cluster analysis of photometry. Ph.D. Dissertation, University of Arizona, Tucson, AZ; Bus, S.J., Binzel, R.P. [2002]. Icarus 158, 146-177). This agrees with an ordinary chondritic composition for this family and suggests the timescale for changing Q-class to S-class spectra in the main belt is roughly comparable to the regolith refresh time in the 2-5. km size range.
Original language | English (US) |
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Pages (from-to) | 1294-1297 |
Number of pages | 4 |
Journal | Icarus |
Volume | 211 |
Issue number | 2 |
DOIs | |
State | Published - Feb 2011 |
Keywords
- Asteroids
- Asteroids, Composition
- Asteroids, Surfaces
- Spectrophotometry
ASJC Scopus subject areas
- Astronomy and Astrophysics
- Space and Planetary Science