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Basic Laboratory Studies of Grains

Published online by Cambridge University Press:  04 August 2017

J. Mayo Greenberg*
Affiliation:
Laboratory Astrophysics, P.O. Box 9504, 2300 Ra Leiden, the Netherlands

Abstract

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Laboratory investigations of grain mantles are shown to have a direct application to observations of interstellar grains. the experiments have made it possible to show how infrared spectra may be used as a probe not only of the grains as they are but also as they have evolved both chemically and physically. Growth by accretion, ultraviolet photoprocessing, gradual heating, explosions and general effects of grains on interstellar chemistry provide a consistent basis for understanding evolution of grains in terms of interactions with the gas, and ultraviolet radiation in both diffuse and dense regions of space.

Type
Grains
Copyright
Copyright © Reidel 1987 

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