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Circumstellar envelopes of OH-IR sources

Published online by Cambridge University Press:  04 August 2017

R. J. Cohen*
Affiliation:
Nuffield Radio Astronomy Laboratories, Jodrell Bank, Macclesfield, Cheshire SK11 9DL, England

Abstract

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This article reviews recent radio observations of maser emission from OH, H2O and SiO molecules in the circumstellar envelopes of OH-IR sources. The different radio lines require different conditions for their excitation, and each therefore probes different regions in the circumstellar envelope. For some stars radio interferometer maps of several maser lines are now available, and a consistent picture of the envelope structure is beginning to emerge.

Type
Circumstellar Shells and Envelopes
Copyright
Copyright © Reidel 1987 

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