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OH inversions in star-forming regions and ALI radiation transfer

Published online by Cambridge University Press:  03 August 2017

Malcolm D. Gray
Malcolm D. Gray*
Affiliation:
Department of Physics, UMIST, P.O. Box 88, Manchester, M60 1QD, U.K.

Abstract

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I introduce a new model of OH maser pumping in star-forming regions, based on exact radiation transfer models of the interface between an expanding ucHII region and undisturbed molecular material. The model incorporates the most recent set of rate-coefficients for collisions of OH with molecular hydrogen, and an improved model of continuum emission from dust. FIR line overlap is incorporated into the model in a manner which avoids the inconsistencies associated with the Sobolev approximation.

Type
Part 7. Maser Theory
Information
Symposium - International Astronomical Union , Volume 206: Cosmic Masers: From Protostars to Blackholes , 2002 , pp. 482 - 486
Copyright
Copyright © Astronomical Society of the Pacific 2002 

References

Gray, M. D. 2001, MNRAS, in press Google Scholar
Jones, K. N., Field, D., Gray, M. D., & Walker, R. N. F. 1994, A&A, 288, 581 Google Scholar
Laor, A. & Draine, B. T. 1993, ApJ, 402, 441 Google Scholar
Mathis, J. S. 1990, ARA&A, 28, 48 Google Scholar
Offer, A. R., van Hemert, M. C., & van Dishoeck, E. F. 1994, J. Chem. Phys, 100, 362 Google Scholar
Pavlakis, K. G. & Kylafis, N. D. 1996a, ApJ, 467, 292 CrossRefGoogle Scholar
Pavlakis, K. G. & Kylafis, N. D. 1996b, ApJ, 467, 300 Google Scholar
Pavlakis, K. G. & Kylafis, N. D. 1996c, ApJ, 467, 309 Google Scholar
Scharmer, G. B. & Carlsson, M. 1985, J. Comput. Phys., 59, 56 Google Scholar
Tielens, A. G. G. M. & Hollenbach, D. 1985, ApJ, 291, 722 Google Scholar