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The masses of binary X-ray sources

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Abstract

From optical and X-ray data available for the binary X-ray sources, the masses of the components were determined univocally in three systems. A discussion about the masses in other three systems is also presented. Besides Cyg X-1, SMC X-1 is another black-hole candidate.

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References

  • Bolton, C. T.: 1972,Nature Phys. Sci. 240, 124.

    Google Scholar 

  • Crawford, D. L.: 1958,Astrophys. J. 128, 185.

    Google Scholar 

  • Hosokawa, Y.: 1957,Sendai Astron. Rap. No. 52.

  • Kippenhahn, R.: 1969,Astron. Astrophys. 3, 83.

    Google Scholar 

  • Krzeminski, W.: 1973,IAU Circ., No. 2612.

  • Lyutiy, V. M., Sunyaev, R. A., and Cherepashchuk, A. M.: 1973,Astron. Zh. 50, 3.

    Google Scholar 

  • Ostriker, J. and Davidson, K.: 1973, in H. Bradt and R. Giacconi (eds.), ‘X- and Gamma-Ray Astronomy’,IAU Symp. 55, 143.

    Google Scholar 

  • Pacheco, J. A. de Freitas: 1974a (in preparation).

  • Pacheco, J. A. de Freitas: 1974b,Nature Phys. Sci., in press.

  • Plavec, M. and Kratochvíl, P.: 1964,Bull. Astron. Inst. Czech. 15, 165.

    Google Scholar 

  • Robertson, S.: 1973,Astrophys. J. 180, 425.

    Google Scholar 

  • Trimble, V., Rose, W. K., and Weber, J.: 1973,Monthly Notices Roy. Astron. Soc. 162, 1P.

    Google Scholar 

  • Tsesevich, V. P. (ed.): 1973,Eclipsing Variable Stars, Halsted Press Book.

  • Van den Heuvel, E. P. J. and Heise, J.: 1972,Nature Phys. Sci. 239, 67.

    Google Scholar 

  • Van den Heuvel, E. P. J. and Ostriker, J.: 1973,Nature Phys. Sci. 245, 99.

    Google Scholar 

  • Wilson, R. E.: 1972,Astrophys. J. 174, L27.

    Google Scholar 

Download references

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de Freitas Pacheco, J.A. The masses of binary X-ray sources. Astrophys Space Sci 32, 205–210 (1975). https://doi.org/10.1007/BF00646226

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  • DOI: https://doi.org/10.1007/BF00646226

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