Production of Water Molecules from Dissociative Recombination of H3O+ with Electrons

Details Production of Water Molecules from Dissociative Recombination of H3O+ with Electrons Production of Water Molecules from Dissociative Recombination of H3O+ with Electrons

Dec 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996phrvl..77.4891a&link_type=abstract

Physical Review Letters, Volume 77, Issue 24, December 9, 1996, pp.4891-4894

Physics

39

Scientific paper

Water is probably the most important molecule for the thermal properties of dense, interstellar gas, and as such plays a decisive role in establishing the rate at which molecular clouds collapse towards star formation. The synthesis of water is thought to be mainly due to dissociative recombination of H3O+ with electrons, although experiments have, as yet, provided no evidence that H2O is a product of the reaction. Here we present the first observation of water synthesis from the recombination of H3O+, with a branching ratio of 33%. This value is in good agreement with existing observations of the [H2O]/[H3O+] ratio in interstellar clouds.

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