Comets, interstellar molecules and the origin of life

Details Comets, interstellar molecules and the origin of life Comets, interstellar molecules and the origin of life

May 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981rleos.143.....i&link_type=abstract

Res. Lab. Electron. Onsala Space Obs., Res. Rep., No. 143, 31 p.

Biology

Abiogenesis, Comets, Exobiology, Interstellar Chemistry, Interstellar Gas, Interstellar Matter, Molecular Clouds, Chemical Composition, Density (Mass/Volume), Radio Frequencies, Solar System, Stellar Evolution, Vapor Phases

Scientific paper

Comets and the relative abundance of molecules in the gas phase in interstellar clouds are investigated. The justification for a joint treatment lies in the possibility that comets may consist of a frozen matrix of interstellar volatiles and grains formed during the early stages of the collapse of the molecular cloud which ultimately produced the Sun and planets. These topics may in turn be related to the origin of life. The observed properties of comets and current models of their nature and composition are reviewed. The determination of relative molecular abundance in interstellar clouds and the evidence favoring a primarily gas phase chemistry in such regions, concluding with a tabulation of molecular abundances in the cold cloud known as TMC-1 which has been called a protosolar nebula is discussed.

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