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Forbidden Lines and Electron Temperatures in Gaseous Nebulae

Published online by Cambridge University Press:  25 April 2016

L. H. Aller
Affiliation:
University of California, Los Angeles
S. J. Czyzak
Affiliation:
Ohio State University, Columbus

Extract

Electron temperatures of compact gaseous nebulae such as planetaries may be derived from radio-frequency data combined with isophotic contours accurately corrected for resolution effects, from the continuum jump at the Balmer limit and other features of the nebular continuum, and from forbidden line ratios.

Type
Contributions
Copyright
Copyright © Astronomical Society of Australia 1969

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References

1 Le Marne, A. E. and Shaver, P. A., Proc. ASA (this issue).Google Scholar
2 See, for example; Aller, L. H., Gaseous Nebulae, Chapman and Hall, London 1956; Seaton, M. J., Rep. Prog. Phys., 23, 313 (1960); Aller, L. H. and Liller, W., Interstellar Medium and Gaseous Nebulae, Vol. 7, Stars and Stellar Systems, ed. Middlehurst, B. and Aller, L. H., Univ. of Chicago Press, Chicago 1968.Google Scholar
3 Harman, R. J. and Seaton, M. J., Mon. Not. Roy. Astr. Soc, 132, 15 (1966).Google Scholar
4 Aller, L. H. and Czyzak, S. J., in Planetary Nebulae, ed. Osterbrock, D. and O’Dell, C. R., I.A.U. Symposium, No. 34, Reidel, D., Dordrecht, Holland, p. 209, 1968.Google Scholar