Crust formation in cometary analogs

Details Crust formation in cometary analogs Crust formation in cometary analogs

Apr 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992angeo..10..217r&link_type=abstract

(Modelling, simulation and sounding of cometary nuclei; Proceedings of the International Workshop, Cagliari, Italy, May 28-30, 1

Computer Science

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4

Comet Nuclei, Crusts, Space Environment Simulation, Space Missions, Chemical Composition, Insolation, Mechanical Properties

Scientific paper

Results are presented of an analysis of the cometary analogs of Kometen-simulation (KOSI) comet simulation experiments conducted before and after insolation in a liquid nitrogen-cooled glove box. The material strength was measured by drilling boreholes using a metal rod connected to a piezoelectric dynamometer. The interior of the samples was analyzed by visual inspection and gas chromatography. The outward diffusion of volatiles, CO2 in particular, was accompanied by an inward motion and recrystallization at sites of lower temperature. Samples with a poor content of solids but rich in H2O-ice produced relatively large brilliant crystallites. Samples which were rich in minerals produced inner crusts and solidifications.

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