Cold-trapped organic compounds at the poles of the Moon and Mercury: Implications for origins

Details Cold-trapped organic compounds at the poles of the Moon and Mercury: Implications for origins Cold-trapped organic compounds at the poles of the Moon and Mercury: Implications for origins

Aug 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009georl..3616203z&link_type=abstract

Geophysical Research Letters, Volume 36, Issue 16, CiteID L16203

Biology

6

Biogeosciences: Astrobiology And Extraterrestrial Materials, Geochemistry: Composition Of The Moon, Geochemistry: Composition Of The Planets, Geochemistry: Organic And Biogenic Geochemistry, Planetary Sciences: Solid Surface Planets: Ices

Scientific paper

We have calculated evaporation rates for a range of organic compounds that may be cold-trapped at the poles of the Moon and Mercury. Organics vary widely in their volatilities and thus can be stable to evaporation at higher and lower temperatures than water. The detection of cold-trapped organics would point to volatile delivery by impacts, as comets and asteroids are the only plausible sources for organic molecules. The characterization of cold-trapped organics on both bodies may provide constraints on the thermal evolution of cold traps over time and the history of volatiles in the inner solar system.

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