Computer Science – Emerging Technologies
Scientific paper
Apr 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991ssrv...56..157a&link_type=abstract
(Analysis of samples from solar system bodies with emphasis on existing and emerging technologies; Proceedings of the Internatio
Computer Science
Emerging Technologies
9
Comets, Extraterrestrial Environments, Meteoritic Composition, Organic Compounds, Abundance, Interplanetary Dust, Jupiter (Planet), Comets, Meteorites, Organic Material, Origin, Source, Heating, Kerogen, Hydrocarbons, Hydrogen Cyanide, Solar Nebula, Chemistry, Thermochemistry, Alkanes, Samples, Meteorite, Amino Acids, Volatiles, Parent Molecules, Dust, Alteration, Hydrolysis, Halley
Scientific paper
At least six extraterrestrial environments may have contributed organic compounds to meteorites and comets: solar nebula, giant-planet subnebulae, asteroid interiors containing liquid water, carbon star atmospheres, and diffuse or dark interstellar clouds. The record in meteorites is partly obscured by pervasive reheating that transformed much of the organic matter to kerogen; nonetheless, it seems that all six formation sites contributed. For comets, the large abundance of HCHO, HCN, and unsaturated hydrocarbons suggests an interstellar component of 50 percent or more, but the contributions of various interstellar processes, and of a solar-nebula component, are hard to quantify. A research program is outlined that may help reduce these uncertainties.
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