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Impact-generated activity period of the asteroid 7968 Elst-Pizarro in 1996: Identification of the asteroid 427 Galene as the most probable parent body of the impactors
Received 4 January 1999 / Accepted 11 May 2000
One of the most interesting objects among the small bodies in the Solar System is the intermediate object 7968 Elst-Pizarro classified as an asteroid-comet orbiting in the Themis region of the main belt, which showed a temporary dust tail activity in 1996. The impact-induced processes generated by multiple collisions with a debris cloud associated with another asteroid, are the preferred explanations for this activity. A computer search has shown that the most probable candidate for the parent body of the impactors to generate this temporary outburst activity, is the field asteroid 427 Galene.
Key words: comets: individual: 133P/Elst Pizarro (P/1996 N2) minor planets, asteroids Solar system: general
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Online publication: July 27, 2000