Ejecta from comet Tempel 1

Details Ejecta from comet Tempel 1 Ejecta from comet Tempel 1

Aug 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005sptz.prop..256r&link_type=abstract

Spitzer Proposal ID #256

Physics

Scientific paper

We propose to observe comet 9P/Tempel 1 at three epochs to monitor the evolution of its debris. The observations will be combined with those already obtained in July 2005. The Deep Impact event on July 4, 2005 liberated copious small grains, but it is not known whether larger debris, which is difficult as it remains very close to the nucleas, was produced. Meteor-sized particles produced in the impact will gradually separate from the comet, with larger and larger particles becoming detectable as time goes on. In addition to Deep Impact-generated debris, we will study the evolution of the naturally-produced debris, using a single model of the dust production history to match all epochs. We will use IRAC images from Jul-Sep 2005 to search for extended CO+CO2 emission from the comet and to measure the color of the debris.

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