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Deep Impact: excavating comet 9P/Tempel 1

Published online by Cambridge University Press:  17 March 2006

M.F. A'Hearn
M.F. A'Hearn
Affiliation:
Department of Astronomy, University of Maryland, College Park MD 20742, USA email: ma@astro.umd.edu
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Abstract

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The Deep Impact mission delivered 19 gigajoules of kinetic energy to the nucleus of comet 9P/Tempel 1 on 4 July 2005. Intensive observations, both from the two spacecraft and from Earth and Earth-orbit, while approaching the comet led to numerous new findings about comets. Observations of the impact event, from the flyby spacecraft have led us to a determination of numerous physical properties of the nucleus. Analysis of the near-IR spectra is still very preliminary.

Keywords

comets: generalcomets: 9P/Tempel 1