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The Pumping of Interstellar OH Main Line Masers: an Efficient Mechanism

Published online by Cambridge University Press:  14 August 2015

Robert Lucas
Robert Lucas*
Affiliation:
Groupe de Radioastronomie, Ecole Normale Supérieure, and Département de Radioastronomie, Observatoire de Meudon

Extract

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Hyperfine components of the far-infrared lines of OH are separated by velocity intervals ranging from about .6 to 8.0 km s-1 (fig. 1). As early as 1969 Litvak had suggested that overlapping of these components due to either thermal or systematic motions could be the source of OH main line inversion. We investigate here the effects of overlapping due to systematic motions.

Type
Research Article
Information
Symposium - International Astronomical Union , Volume 87: Interstellar Molecules , 1980 , pp. 581 - 582
Copyright
Copyright © Reidel 1980 

References

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