Rotationally-resolved spectra of Ceres in the 3-μm region

Details Rotationally-resolved spectra of Ceres in the 3-μm region Rotationally-resolved spectra of Ceres in the 3-μm region

Mar 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010icar..206..327r&link_type=abstract

Icarus, Volume 206, Issue 1, p. 327-333.

Computer Science

5

Scientific paper

We present observations of Ceres over the 2.2-4.0 μm region taken using the SpeX instrument on the NASA IRTF in 2005. The observations cover Ceres’ entire longitude range and show evidence for a relatively uniform surface in terms of Ceres’ composition, however there is a subtle but consistently shallower band depth over longitudes associated with bright regions in HST maps, suggesting those areas are slightly less carbonate- and brucite-rich. We also find Ceres’ beaming parameter, a measure of its thermal properties, to have changed with its viewing aspect.

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