A Self-Perpetuating Catalyst for the Production of Complex Organic Molecules in Protostellar Nebulae

Details A Self-Perpetuating Catalyst for the Production of Complex Organic Molecules in Protostellar Nebulae A Self-Perpetuating Catalyst for the Production of Complex Organic Molecules in Protostellar Nebulae

Feb 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008apj...673l.225n&link_type=abstract

The Astrophysical Journal, Volume 673, Issue 2, pp. L225-L228.

Biology

9

Astrobiology, Astrochemistry, Methods: Laboratory, Molecular Processes, Solar System: Formation, Stars: Pre-Main-Sequence

Scientific paper

When hydrogen, nitrogen, and CO are exposed to amorphous iron silicate surfaces at temperatures between 500 and 900 K a carbonaceous coating forms via Fischer-Tropsch-type reactions. Under normal circumstances such a coating would impede or stop further reaction. However, we find that this coating is a better catalyst than the amorphous iron silicates that initiate these reactions. Formation of a self-perpetuating catalytic coating on grain surfaces could explain the rich deposits of macromolecular carbon found in primitive meteorites and would imply that protostellar nebulae should be rich in organic material.

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