Influence of organic molecules on ice properties on solar system bodies

Details Influence of organic molecules on ice properties on solar system bodies Influence of organic molecules on ice properties on solar system bodies

Aug 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001esasp.496..353k&link_type=abstract

In: Exo-/astro-biology. Proceedings of the First European Workshop, 21 - 23 May 2001, ESRIN, Frascati, Italy. Eds.: P. Ehrenfreu

Biology

Organic Molecules, Solar System Bodies, Ices

Scientific paper

Physical properties of ices depend on structural parameters, globally described as texture of the material. Such parameters are the porosity, the grain size, the material strength and the local density, just to mention some of them. We did laboratory experiments to investigate the influence of organic molecules (aliphatic hydrocarbons) on the thermal conductivity of ice and dust mixtures, as they might occur on comets or the surface of icy satellites like Europa. An evaluation of the experiments showed that a certain amount of organic constituents might act as a kind of glue that enhances the material strength and also the thermal conductivity. Thus the history of such icy bodies is also influenced by the amount of available organic components in the material.

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