The Thermal History and Structure of Cometary Nuclei

@inproceedings{Rickman1991TheTH,
  title={The Thermal History and Structure of Cometary Nuclei},
  author={Hans Rickman},
  year={1991}
}
. Cometary nuclei are often considered to be the most primitive bodies of the solar system. Thus it is particularly important to find out what structural changes may have been brought about as a result of their thermal evolution. Is there reason to believe that the bulk composition of the nucleus of a present-day short-period comet may differ from that of the original planetesimal in the solar nebula? Apart from the development of a non-volatile surface layer ('dust mantle'), what further depth… 

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