Rotationally resolved spectroscopy of (20000) Varuna in the near-infrared

  title={Rotationally resolved spectroscopy of (20000) Varuna in the near-infrared},
  author={Vania Lorenzi and Noem{\'i} Pinilla-Alonso and Javier Licandro and Cristina Dalle Ore and J. P. Emery Fundaci'on Galileo Galilei-INAF and Spain. and University of Tennessee and Tn and Usa and Instituto de Astrof'isica de Canarias and Iac and Carl Sagan Center and Seti Institute and NASAArmstrong Flight Research Center and Ca},
  journal={arXiv: Earth and Planetary Astrophysics},
Models of the escape and retention of volatiles by minor icy objects exclude any presence of volatile ices on the surface of TNOs smaller than ~1000km in diameter at the typical temperature in this region of the solar system, whereas the same models show that water ice is stable on the surface of objects over a wide range of diameters. Collisions and cometary activity have been used to explain the process of surface refreshing of TNOs and Centaurs. These processes can produce surface… 

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