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

@article{Webster1972CygnusXS,
  title={Cygnus X-1—a Spectroscopic Binary with a Heavy Companion ?},
  author={B. Webster and P. Murdin},
  journal={Nature},
  year={1972},
  volume={235},
  pages={37-38}
}
  • B. Webster, P. Murdin
  • Published 1972
  • Physics
  • Nature
  • 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 star2,3, 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. 
    223 Citations

    Paper Mentions

    References

    SHOWING 1-8 OF 8 REFERENCES