Deep Impact: Observations from a Worldwide Earth-Based Campaign

Details Deep Impact: Observations from a Worldwide Earth-Based Campaign Deep Impact: Observations from a Worldwide Earth-Based Campaign

Oct 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005sci...310..265m&link_type=abstract

Science, Volume 310, Issue 5746, pp. 265-269 (2005).

Physics

115

Scientific paper

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.

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