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The Determination of Electron Abundances in Interstellar Clouds

Published online by Cambridge University Press:  14 August 2015

Alwyn Wootten
Affiliation:
Dept. of Astronomy, University of Texas Owens Valley Radio Observatory, Caltech
Ronald Snell
Affiliation:
Dept. of Astronomy, University of Texas
A. E. Glassgold
Affiliation:
Dept. of Physics, New York University

Extract

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A new method for estimating electron fractions in shielded molecular clouds is proposed on the basis of gas phase ion-molecule reactions which involves measuring the quantity . Applied to existing data, it yields upper limits to Xe in the range from 10−8 to 10−7 for a variety of clouds, warm as well as cool. An upper bound to the cosmic ray ionization rate is also obtained.

Type
Research Article
Copyright
Copyright © Reidel 1980 

References

Langer, W.D., Wilson, R.W., Henry, P.S., and Guelin, M., 1978, Astrophys. J. (Letters) 225, L139.Google Scholar
Watson, W.D., 1977, CNO Isotopes in Astrophysics, ed. Audouze, J. (D. Reidel, Dordrecht).Google Scholar
Watson, W.D., Snyder, L.E., and Hollis, J.M., 1978, Astrophys. J. (Letters) 222, 145.Google Scholar
Wootten, A., Evans, N.J., Snell, R., and Vanden Bout, P., 1978, Astrophys. J. (Letters) 225, L143.Google Scholar