THE MASS OF THE BLACK HOLE IN CYGNUS X-1

@article{Orosz2011THEMO,
  title={THE MASS OF THE BLACK HOLE IN CYGNUS X-1},
  author={Jerome A. Orosz and Jeffrey E. McClintock and Jason Paul Aufdenberg and Ronald A. Remillard and Mark J. Reid and Ramesh Narayan and Lijun Gou},
  journal={The Astrophysical Journal},
  year={2011},
  volume={742},
  pages={84}
}
Cygnus X-1 is a binary star system that is comprised of a black hole and a massive giant companion star in a tight orbit. Building on our accurate distance measurement reported in the preceding paper, we first determine the radius of the companion star, thereby constraining the scale of the binary system. To obtain a full dynamical model of the binary, we use an extensive collection of optical photometric and spectroscopic data taken from the literature. By… 

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