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Hydrogen Alpha Profiles in Cepheids

Published online by Cambridge University Press:  25 April 2016

E. G. Schmidt
E. G. Schmidt*
Affiliation:
Mount Stromlo and Siding Spring Observatories, Australian National University, Canberra
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Extract

Theoretical Hα profiles have been used by Rodgers and Bell (hereafter denoted by RB) to obtain the effective temperatures of several cepheid variable stars. They find that the profiles are sufficiently sensitive to temperature to enable them to determine temperatures which are accurate to within about 300°, while being insensitive to other factors such as gravity or the form of the temperature distribution in the model atmosphere.

Type
Contributions
Information
Publications of the Astronomical Society of Australia , Volume 1 , Issue 5 , March 1969 , pp. 205 - 206
Copyright
Copyright © Astronomical Society of Australia 1969

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References

1 Rodgers, A. W. and Bell, R. A., M.N.R.A.S., 136, 91 (1967).Google Scholar
2 Edmonds, F. M., Schlüter, H. and Wells, D. C, Mem. R.A.S., 71, 271 (1967).Google Scholar
3 Griem, H. R., Plasma Spectroscopy, p. 92, McGraw-Hill, 1964.Google Scholar
4 Rodgers, A. W., private communication.Google Scholar
5 Oke, J. B., Ap. J., 133, 90 (1961).CrossRefGoogle Scholar
6 Sandage, A. and Tamman, G. A., Ap. J., 151, 531 (1968).Google Scholar
7 Fernie, J. D., A.J., 72, 422 (1967).CrossRefGoogle Scholar