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Velocity Variations in Beta Centauri

Published online by Cambridge University Press:  25 April 2016

R.R. Shobbrook  and
J.W. Robertson
J.W. Robertson
Affiliation:
School of Physics, University of Sydney
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Extract

This programme was undertaken because the preliminary observations of Beta Centauri with the Narrabri stellar interferometer (Hanbury Brown, Davis, Allen, and Rome) show that the correlation received is not consistent with that expected from a single star. The Lick Catalogue of Radial Velocities states that β Cen is a Bl II star. The Narrabri results are consistent with several models; in particular, it may be a double star with components of similar brightness, or it may have a very luminous, extended atmosphere or shell surrounding it. The latter possibility is perhaps unlikely on the spectroscopic evidence, as there are neither emission nor sharp absorption components in the spectral lines.

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Contributions
Information
Publications of the Astronomical Society of Australia , Volume 1 , Issue 3 , February 1968 , pp. 82 - 83
Copyright
Copyright © Astronomical Society of Australia 1968

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References

1 Hanbury Brown, R. Davis, J., Allen, L.R., and Rome, J.M., M.N. R.A.S. (in press).Google Scholar
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3 Bojartschuk, A.A., and Kopylow, I.M., Izv. Krym. Astrophiz. Obs., 31, 64 (1964).Google Scholar
4 van Hoof, A., Zs. f Ap., 54, 244 (1962).Google Scholar
5 Underhill, A.B., ‘The Early Type Stars’, Reidel Publishing Company, Dordrecht-Holland, 1966.Google Scholar