Models of the gas-grain interaction - Deuterium chemistry

Details Models of the gas-grain interaction - Deuterium chemistry Models of the gas-grain interaction - Deuterium chemistry

Apr 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989mnras.237..661b&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 237, April 1, 1989, p. 661-671.

Astronomy and Astrophysics

Astronomy

100

Abundance, Deuterium, Gas-Solid Interactions, Interstellar Chemistry, Interstellar Matter, Molecular Clouds

Scientific paper

Chemical models of a dense quiescent cloud, including accretion, and a hot molecular core are extended to include deuterium chemistry, both in the gas phase and on the surface of dust grains. For the dense cloud model it is found that as accretion begins to dominate the chemistry, and atoms and molecules leave the gas phase, the destruction rate of many radicals is reduced. In the model of a hot molecular core the enhanced abundances of NH2D and HDO, and the high deuterium fractionation observed by including grain surfaces reactions involving deuterium atoms are explained.

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