Experimental Results of a Large Scale Simulation of Cometary Ices and Agreements with the Findings of Deep-Impact

Details Experimental Results of a Large Scale Simulation of Cometary Ices and Agreements with the Findings of Deep-Impact Experimental Results of a Large Scale Simulation of Cometary Ices and Agreements with the Findings of Deep-Impact

Aug 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006iaujd..10e..18p&link_type=abstract

Progress in Planetary Exploration Missions, 26th meeting of the IAU, Joint Discussion 10, 21-22 August 2006, Prague, Czech Repub

Physics

Scientific paper

A large scale comet simulation, with samples of gas-laden amorphous water ice 10 cm thick and a diameter of 20 cm, was carried out. Chaotic terrain and irregular depressions, such as found on comets Wild-2 and Temple-1, were formed as a result of massive gas release during the warming up of the gas-laden ice sample. The measured density- 0.3 gr cm^-3, tensile strength~ 170 Pa and thermal inertia- 80 W m^-2 K^-1 sec^1/2 were found to be very similar to those found by Deep-Impact: 0.6 gr cm^-3 (including mineral and organic dust), ~100 Pa and ≤ 100 W m^-2 K^-1 sec^1/2.

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