Computer Science
Scientific paper
Nov 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002esasp.500..653c&link_type=abstract
In: Proceedings of Asteroids, Comets, Meteors - ACM 2002. International Conference, 29 July - 2 August 2002, Berlin, Germany. Ed
Computer Science
Comets: Fragmentation
Scientific paper
The long period comet C/1996 B2 Hyakutake had a close approach to the Earth (0.1 AU) in March 1996 and was monitored by many instruments. After a few days of increased activity, the repeated emission of small fragments was observed. Using a nucleus thermal evolution and differentiation model we follow the evolution of the fragments, making various assumptions on their size and deriving their orbital characteristics from the literature. The theoretical nucleus model computes the gas and dust emissions and the radius reduction of the spinning fragment, so we are able to derive the lifetime of the fragments and study their visibility, that are function of the assumed size and composition. The results of these simulations are compared with observations. We also give an evaluation of the nongravitational forces due to sublimation acting on the fragments.
Capria Maria Teresa
Coradini Angioletta
de Sanctis Maria Cristina
Tozzi Gian Paolo
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