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Observations of the Cooling of the Interstellar Gas

Phillips, T. G. (1987) Observations of the Cooling of the Interstellar Gas. In: Interstellar Processes. Astrophysics and Space Science Library. No.134. Springer , Dordrecht, pp. 706-730. ISBN 978-90-277-2485-4.

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Cooling of the gas of the dense interstellar clouds takes place primarily at submillimeter wavelengths. At about 1mm cooling is due to the many rotational lines of heavy moleules, but at shorter wavelengths light molecules (hydrides) become the dominant species, with some assistance from the fine structure transitions of atomic carbon. Photodissociation regions at the surfaces of molecular clouds are cooled by fine structure transitions of atoms and atomic ions. A presentation is given of some aspects of the observed emission due to heavy molecules, light molecules, atoms and ions.

Item Type:Book Section
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Additional Information:© D. Reidel Publishing Company 1987.
Subject Keywords:Interstellar Medium; Molecular Cloud; Dust Emission; Line Flux; Dense Cloud
Series Name:Astrophysics and Space Science Library
Issue or Number:134
Record Number:CaltechAUTHORS:20210126-073525602
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:107723
Deposited By: Tony Diaz
Deposited On:26 Jan 2021 18:25
Last Modified:16 Nov 2021 19:05

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