Hostname: page-component-586b7cd67f-dsjbd Total loading time: 0 Render date: 2024-12-05T02:22:27.730Z Has data issue: false hasContentIssue false
  • English
  • Français

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

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

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

Goldreich, P., Keeley, D.: 1972, Astrophys. J. 174, p. 517.CrossRefGoogle Scholar
Goldreich, P., Kwan, J.D.: 1974, Astrophys. J. 189, p. 441.CrossRefGoogle Scholar
Guibert, J., Elitzur, M., Nguyen, Q. Rieu: 1978, Astron. Astrophys. 66, p. 395.Google Scholar
Litvak, M.M.: 1969, Astrophys. J. 156, p. 471.CrossRefGoogle Scholar
Nguyen, Q.-Rieu: 1979, paper presented to this symposium.Google Scholar
Winnberg, A., Walmsley, C.M., Churchwell, E.: 1978, Astron. Astrophys. 66, p. 431.Google Scholar