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Contact binaries of spectral type O

Published online by Cambridge University Press:  14 August 2015

Kam-Ching Leung  and
Donald P. Schneider
Kam-Ching Leung
Affiliation:
Behlen Observatory, Department of Physics and Astronomy, University of Nebraska; Office of Energy Research, U. S. Department of Energy, Washington, D.C.
Donald P. Schneider
Affiliation:
Hale Observatories, California Institute of Technology, Carnegie Institution of Washington

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The eclipsing binaries UW CMa, AO Cas, and V729 Cyg have been systems of great interest for over fifty years. The light curves are complex and suffer significant changes on a time scale of months, but the primary attraction of these systems is that both components have O-type spectra; thus they present us with some of the few possibilities for direct measurement of absolute dimensions of very massive stars. Much effort has been expended on these systems, but no really consistent model has emerged.

Type
Session 5: Theory and Mass Loss Rates Binary Stars - Miscellaneous Topics
Information
Symposium - International Astronomical Union , Volume 83: Mass Loss and Evolution of O-Type Stars , 1979 , pp. 265 - 269
Copyright
Copyright © Reidel 1979 

References

Leung, K. C., and Schneider, D. P.: 1978a, Astrophys. J. 222, pp. 924–930.CrossRefGoogle Scholar
Leung, K. C., and Schneider, D. P.: 1978b, Astrophys. J. 224, (in press).Google Scholar
Schneider, D. P., and Leung, K. C.: 1978, Astrophys. J. 223, pp. 202–206.CrossRefGoogle Scholar
Stothers, R.: 1972, Astrophys. J. 175, pp. 431–452.CrossRefGoogle Scholar
Wilson, R. E., and Devinney, E. J.: 1971, Astrophys. J. 166, pp 605–619.CrossRefGoogle Scholar