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Non-Conservative Mass Exchange and Origin of X-Ray Close Binaries

Published online by Cambridge University Press:  14 August 2015

Daiichiro Sugimoto  and
Shigeki Miyaji
Daiichiro Sugimoto
Affiliation:
Department of Earth Science and Astronomy, College of General Education, University of Tokyo, Tokyo 153, Japan
Shigeki Miyaji
Affiliation:
Department of Earth Science and Astronomy, College of General Education, University of Tokyo, Tokyo 153, Japan

Extract

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Recently, masses of component stars have been determined for many X-ray close binaries (XCBS). For relatively well determined sources the masses of X-ray components are plotted against the masses of their optical components in Figure 1 and their orbital periods are summarized in Table 1 (Cowley 1977; Bradt, Doxsey, and Jernigan 1979; Wheeler 1978; and references quoted therein). Cowley (1977) prepared a table and noticed that there are two distinct types of XCBS. The Type I XCBS consists of an X-ray star and an early type star more massive than about 12 M⊙. On the contrary, the Type II XCBS consists of an X-ray star and a star less massive than about 2 M⊙. As seen in Figure 1, there is not any distinct intermediate type for which the mass of the optical component lies in the range of about 2-12 M⊙. The aim of the present paper lies in interpreting the origin of these types of XCBS on the bases of the conditions for the formation of a neutron star and of mass exchange in close binary systems.

Type
VI. X-Ray Binaries
Information
Symposium - International Astronomical Union , Volume 88: Close Binary Stars: Observations and Interpretation , 1980 , pp. 323 - 327
Copyright
Copyright © Reidel 1980 

References

Barbaro, G., Chiosi, C., and Nobili, L.: 1972, Astron. Astrophys., 18, pp. 186–197.Google Scholar
Bradt, H.V., Doxsey, R.E., and Jernigan, J.G.: 1979, to be published in Advances in Space Exploration 3.Google Scholar
Cowley, A.P.: 1977, Ann. New York Acad. Sci., 302, 1.Google Scholar
Lamb, S.A., Iben, I. Jr., and Howard, W.M.: 1976, Astrophys. J., 207, pp. 209–232.Google Scholar
Sugimoto, D., and Miyaji, S.: 1979, paper presented to this symposium.Google Scholar
Wheeler, J.C.: 1978, to be published in the Proceedings of the Workshop on Supernovae and Supernova Remnants held in Erice, Sicily, May 1978.Google Scholar