Stochastic Theory of Molecule Formation on Dust

Details Stochastic Theory of Molecule Formation on Dust Stochastic Theory of Molecule Formation on Dust

Nov 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001apj...562l..99c&link_type=abstract

The Astrophysical Journal, Volume 562, Issue 1, pp. L99-L102.

Astronomy and Astrophysics

Astronomy

50

Ism: Dust, Extinction, Ism: Molecules, Methods: Numerical, Methods: Statistical

Scientific paper

The formation of interstellar molecules on the surfaces of dust grains is calculated in the framework of stochastic reaction kinetics. The master equation and the state transition probabilities are defined, and the growth of grain mantles following accretion and reaction of gas-phase species is computed. The results are compared to the observed composition and structure of interstellar ices. The differences between this approach to gas-grain kinetics and previous work is discussed, and possible extensions of the theory are outlined.

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