Time-dependent sticking coefficients and mantle growth on interstellar grains

Details Time-dependent sticking coefficients and mantle growth on interstellar grains Time-dependent sticking coefficients and mantle growth on interstellar grains

Nov 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985mnras.217..413j&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 217, Nov. 15, 1985, p. 413-421.

Astronomy and Astrophysics

Astronomy

12

Cosmic Dust, Gas-Solid Interactions, Interstellar Gas, Interstellar Matter, Surface Properties, Time Dependence, Chemical Evolution, Grain Boundaries, Molecular Clouds, Surface Layers

Scientific paper

The authors discuss the nature of the interaction between gas phase species of all types and the surfaces of interstellar grains. The effective sticking coefficient on bare grain surfaces is shown to be a function of surface coverage. Hence the time-scale to establish monolayer coverage is longer (in some cases much longer) than hitherto assumed. Following monolayer coverage, mantle formation continues but the sticking coefficient varies throughout this process. The time variation of the effective sticking coefficient is illustrated in several cases.

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