Dec 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009agufm.p21b1213s&link_type=abstract
American Geophysical Union, Fall Meeting 2009, abstract #P21B-1213
Physics
[6020] Planetary Sciences: Comets And Small Bodies / Ices, [6211] Planetary Sciences: Solar System Objects / Centaurs
Scientific paper
We have obtained near infrared spectra of over 20 centaurs with the Near Infrared Camera (NIRC) on the Keck I telescope. We parameterize all the spectra with a linear mixture of crystalline water ice and a dark continuum component. We find no correlation between object visible color and the fraction of water ice found in the infrared spectra. Visible color should therefore not be interpreted as a predictor of the presence or absence of surface ices on these bodies. We also compare the physical properties of centaurs to their current orbital elements and dynamical lifetimes.
Brown Michael E.
Haghighipour Nader
Schaller Emily L.
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