Cyg X-3: a low-mass black hole or a neutron star.

@article{Zdziarski2013CygXA,
  title={Cyg X-3: a low-mass black hole or a neutron star.},
  author={Andrzej A. Zdziarski and Joanna Mikołajewska and Krzysztof Belczynski},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2013},
  volume={429}
}
Cyg X-3 is a highly interesting accreting X-ray binary, emitting from the radio to high-energy gamma-rays. It consists of a compact object wind-fed by a Wolf-Rayet (WR) star, but the masses of the components and the mass-loss rate have been a subject of controversies. Here, we determine its masses, inclination, and the mass-loss rate using our derived relationship between the mass-loss rate and the mass for WR stars of the WN type, published infrared and X-ray data, and a relation between the… 

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