Near-Infrared Mapping and Physical Properties of the Dwarf-Planet Ceres

  title={Near-Infrared Mapping and Physical Properties of the Dwarf-Planet Ceres},
  author={B. Carry and C. Dumas and M. Fulchignoni and W. Merline and J. Berthier and D. Hestroffer and T. Fusco and P. Tamblyn},
  journal={Astronomy and Astrophysics},
Aims. We study the physical characteristics (shape, dimensions, spin axis direction, albedo maps, mineralogy) of the dwarf-planet Ceres based on high-angular resolution near-infrared observations. Methods. We analyze adaptive optics J/H/K imaging observations of Ceres performed at Keck II Observatory in September 2002 with an equivalent spatial resolution of∼50 km. The spectral behavior of the main geological features present on Ceres is compared with laboratory samples. Results. Ceres’ shape… Expand
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