Characterization of the UV absorption feature in asteroid 1 Ceres

Details Characterization of the UV absorption feature in asteroid 1 Ceres Characterization of the UV absorption feature in asteroid 1 Ceres

Jul 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007hst..prop11109l&link_type=abstract

HST Proposal ID #11109. Cycle 16

Computer Science

Scientific paper

We propose to obtain the UV spectrum of asteroid 1 Ceres from 120 nm to 200 nm with ACS/SBC objective prism to characterize the broad and deep absorption feature within this wavelength range as reported by ACS observations of Ceres in 2003/04 Li et al. 2006. Our scientific goals include, 1 to characterize the absorption band, 2 to determine the origin of this spectral feature and constrain the surface composition of Ceres, and 3 to understand the albedo and color features on Ceres. HST is the only observatory currently capable of obtaining spectroscopy in this wavelength range. This observation will help improve our knowledge about this largest and oldest asteroid, and support the planning of the upcoming NASA Discovery Program mission, Dawn, orbiting asteroids Vesta and Ceres.;

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