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Line Interactions in Saturated Masers

Published online by Cambridge University Press:  25 April 2016

A. G. Bromley*
Affiliation:
School of Physics, University of Sydney

Extract

Two important problems have emerged from observations of 18 cm OH emission sources that remain substantially unanswered by existing theories. The first is the problem of the origin of the high degree of circular polarization that is frequently observed. The second is what I have called the ‘problem of variety’: is it necessary to invoke a number of different physical mechanisms to explain the variety of qualitatively different behaviours observed, or can these different behaviours be explained by variations of one basic physical process?

Type
Contributions
Copyright
Copyright © Astronomical Society of Australia 1971

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References

1 Turner, B. E., Roy. Astro. Soc. J. Canada, 64, 221, 282 (1970).Google Scholar
2 Heer, C. V. and Graft, R. D., Phys. Rev., 140, A1088 (1965).Google Scholar