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

  title={Near-Infrared Mapping and Physical Properties of the Dwarf-Planet Ceres},
  author={Beno{\^i}t Carry and Christophe Dumas and Marcello Fulchignoni and William J. Merline and J{\'e}r{\^o}me Berthier and Daniel Hestroffer and Thierry Fusco and Peter M. 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… 
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