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The Absorption of Trapped Line Photons by Dust

Goldreich, Peter and Kwan, John (1979) The Absorption of Trapped Line Photons by Dust. Astrophysical Journal, 227 (1). pp. 150-151. ISSN 0004-637X. doi:10.1086/156713.

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We derive the rate at which photons in an optically thick line are absorbed by cold dust. This rate is approximately equal to the dust optical depth to the cloud center times the rate at which the photons escape from the cloud. Our derivation is in response to a recent article by Strel'nitskii in which he incorrectly criticized our previous application of this result to models for the pumping of cosmic masers. Strel'nitskii now agrees that his criticism was unjustified.

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Additional Information:© 1979 American Astronomical Society. Received 1978 March 2; accepted 1978 June 30. This research was supported in part by NSF grant AST 76-23281.
Funding AgencyGrant Number
NSFAST 76-23281
Subject Keywords:masers, nebulae: general, radiative transfer
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Caltech Division of Geological and Planetary Sciences3046
Issue or Number:1
Record Number:CaltechAUTHORS:20130306-152013976
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Official Citation:The Absorption of Trapped Line Photons by Dust Goldreich, Peter.; Kwan, John Astrophysical Journal, Vol. 227, pp. 150-151 (1979)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:37354
Deposited On:06 Mar 2013 23:37
Last Modified:09 Nov 2021 23:28

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