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American Association for the Advancement of Science, Science, 5746(310), p. 265-269, 2005

DOI: 10.1126/science.1118978

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Deep Impact: Observations from a Worldwide Earth-Based Campaign

Journal article published in 2005 by Kj J. Meech, K.-J. Meech, Farnham T ~L, N. Ageorges, M. F. A'Hearn, Fernández Y ~R, Jiang Z ~J, Claude Arpigny, Kamath U ~W, A. Ates, J. Aycock, Prabhu T ~P, S. Bagnulo, N. Takata, Jeremy Bailey and other authors.
This paper is available in a repository.
This paper is available in a repository.

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Data provided by SHERPA/RoMEO

Abstract

On 4 July 2005, many observatories around the world and in space observed the collision of Deep Impact with comet 9P/Tempel 1 or its aftermath. This was an unprecedented coordinated observational campaign. These data show that (i) there was new material after impact that was compositionally different from that seen before impact; (ii) the ratio of dust mass to gas mass in the ejecta was much larger than before impact; (iii) the new activity did not last more than a few days, and by 9 July the comet's behavior was indistinguishable from its pre-impact behavior; and (iv) there were interesting transient phenomena that may be correlated with cratering physics.