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Constraints on impact rates in the Pluto-Charon system and the population of the Kuiper comet belt (1989)

Weissman, Paul R. ; Dobrovolskis, Anthony R. ; Stern, S. Alan

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Publication Date: 2011-08-19

Description: Impact rates in the Pluto-Charon system are dominated by comets from the proposed Kuiper Belt, 30 to 50 AU from the sun. Such collisions excite the eccentricity of Charon's orbit, which then decays due to tidal dissipation. Charon's eccentricity approaches a quasi-steady state, which can be used to constrain the total number and mass of comets in the Kuiper Belt. Unfortunately, the current upper limit on Charon's orbital eccentricity must be reduced by more than a factor of ten before useful constraints can be set.

Keywords: ASTRONOMY

Type: Geophysical Research Letters (ISSN 0094-8276); 16; 1241-124

Format: text

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