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Be star disk structure as implied by X-ray observations

Published online by Cambridge University Press:  26 May 2016

Priyamvada Saraswat  and
Krishna M.V. Apparao
Priyamvada Saraswat
Affiliation:
Indian Institute of Astrophysics, Bangalore, India
Krishna M.V. Apparao
Affiliation:
Tata Institute of Fundamental Research, Bombay, India

Extract

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Compared to several other Be/X-ray binaries, 4U1907+09 has been observed more frequently due to the fact that it is found in an ‘on’ state more often. It also has a short orbital period of ~ 8 days as compared to the long orbital periods commonly found in these binaries. But despite the attention it has received, the exact nature of the primary remains elusive. While some observers maintain it to be a Be/X-ray binary, others prefer to put it into the class of OB supergiants.

Type
3. X-Ray Observations
Information
Symposium - International Astronomical Union , Volume 162: Pulsation, Rotation and Mass Loss in Early-Type Stars , 1994 , pp. 213 - 215
Copyright
Copyright © Kluwer 1994 

References

Saraswat, P., 1992, Ph.D. thesis and references therein.Google Scholar