Sticking probability of H and D atoms on amorphous ice - A computational study

Details Sticking probability of H and D atoms on amorphous ice - A computational study Sticking probability of H and D atoms on amorphous ice - A computational study

Oct 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...379..647b&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 379, Oct. 1, 1991, p. 647-652.

Statistics

Computation

63

Adhesion, Computational Chemistry, Cosmic Dust, Deuterium, Hydrogen Atoms, Ice, Interstellar Matter, Amorphous Materials, Molecular Physics, Recombination Reactions

Scientific paper

Sticking of H and D atoms on amorphous ice was studied computationally, using the molecular dynamics simulation technique. A simple formula was obtained for the sticking probability at T(gas) less than about 300 K, with E0 = 200 K for the D atom, E0 = 102 K for the H atom. The formula is suggested as a reasonable estimate for sticking on dust grains in general - if most grains are covered by at least a few layers of weakly bonded disordered molecular material.

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