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Cygnus X-1—a Spectroscopic Binary with a Heavy Companion ?

• Letter
• Published: 07 January 1972

Nature volume 235, pages 37–38 (1972)Cite this article

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WE have reported¹ that the spectrum, colours and interstellar features in the star HD 226868, which is coincident with the X-ray star Cygnus X-1 and a radio star^2,3, were those of a normal BOIb supergiant. We made measurements of the radial velocity of the star from August 1971 to October 1971 and find it to be a velocity variable, whose changes of velocity correlate with changes in the X-ray flux.

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1. Murdin, P., and Webster, B. L., Nature, 233, 110 (1971).

   Article  ADS  CAS  Google Scholar 

2. Braes, L. L. E., and Miley, G. K., Nature, 232, 246 (1971).

   Article  ADS  CAS  Google Scholar 

3. Rappaport, S., Zaumen, W., and Doxsey, R., Astrophys. J. Lett., 168, L17 (1971).

   Article  ADS  Google Scholar 

4. Stothers, R., and Lloyd Evans, T., Observatory, 90, 186 (1970).

   ADS  Google Scholar 

5. Slettebak, A., and Howard, R. E., Astrophys. J., 120, 102 (1955).

   Article  ADS  Google Scholar 

6. Allen, C. W., Astrophysical Quantities (second ed.) (University of London Press, 1964).

   Book  Google Scholar 

7. Dolan, J. F., Space Sci. Rev., 10, 830 (1971).

   Article  ADS  Google Scholar 

8. Dolan, J. F., Nature, 233, 109 (1971).

   Article  ADS  CAS  Google Scholar 

9. Agrawal, P. C., Gokhale, G. S., Iyengar, V. S., Kunte, P. K., Manchanda, R. K., and Sreekantan, B. V., Nature, 232, 38 (1971).

   Article  ADS  CAS  Google Scholar 

10. Plavec, M., Bull. Astron. Inst. Czech., 18, 253 (1967).

    ADS  Google Scholar 

11. Oda, M., Gorenstein, P., Gursky, H., Kellogg, E., Schreier, E., Tannanbaum, H., and Giacconi, R., Astrophys. J. Lett., 166, L1 (1971).

    Article  ADS  Google Scholar 

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1. Royal Greenwich Observatory, Herstmonceux Castle, Hailsham, Sussex

   B. LOUISE WEBSTER & PAUL MURDIN

1. B. LOUISE WEBSTER
2. PAUL MURDIN

WEBSTER, B., MURDIN, P. Cygnus X-1—a Spectroscopic Binary with a Heavy Companion ?. Nature 235, 37–38 (1972). https://doi.org/10.1038/235037a0

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• Received: 17 November 1971

• Issue Date: 07 January 1972

• DOI: https://doi.org/10.1038/235037a0

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