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Destruction of Dirty Ice Mantles by Sputtering

Published online by Cambridge University Press:  14 August 2015

P. A. Aannestad
P. A. Aannestad*
Affiliation:
Institute for Space Studies, Goddard Space Flight Center, NASA, N. Y., U.S.A.

Abstract

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Dirty ice mantles are destroyed efficiently by sputtering of He atoms when clouds encounter shock velocities greater than 13–15 km s–1. Destruction due to grain-grain collisions is found to be about 10–3 times less efficient. Sputtering in the hot intercloud medium should make intercloud grains smaller than cloud grains.

Type
Part VI Physical Processes, Theory and Experiment
Information
Symposium - International Astronomical Union , Volume 52: Interstellar Dust and Related Topics , 1973 , pp. 341 - 344
Copyright
Copyright © Reidel 1973 

References

FitzGerald, M. P.: 1968, Astron. J. 73, 893.Google Scholar
Knacke, R. F., Cudaback, D. D., and Gaustad, J. E.: 1969, Astrophys. J. 158, 151.Google Scholar