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Diffuse OH in the Milky Way

Published online by Cambridge University Press:  03 August 2017

M.D. Gray  and
M. R. W. Masheder
M.D. Gray
Affiliation:
Dept. of Physics, UMIST, P.O. Box 88, Manchester, M60 1QD, U.K.
M. R. W. Masheder
Affiliation:
Dept. of Physics, University of Bristol, Tyndall Avenue, Bristol, BS8 1TL, U.K.

Abstract

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We obtain integrated gains for the OH ground-state lines from an exact radiation transfer code with parameters suitable for a large molecular cloud. Results show that the lines are usually formed in NLTE, and that the satellite lines typically show conjugate behaviour. Constraints are set on the OH abundance and kinetic temperature by the requirement that there be no strong maser emission in the main lines.

Type
Part 7. Maser Theory
Information
Symposium - International Astronomical Union , Volume 206: Cosmic Masers: From Protostars to Blackholes , 2002 , pp. 487 - 491
Copyright
Copyright © Astronomical Society of the Pacific 2002 

References

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