Corpus ID: 16569251

Identification of the soft X-ray excess in Cygnus X-1 with disc emission

@article{BauciskaChurch1995IdentificationOT,
  title={Identification of the soft X-ray excess in Cygnus X-1 with disc emission},
  author={Monika Bałucińska-Church and Tomaso Belloni and Mike J. Church and G. Hasinger},
  journal={Astronomy and Astrophysics},
  year={1995},
  volume={302}
}
We present results of a study of the soft X-ray excess in the black hole candidate Cygnus X-1 made with the {\it Rosat PSPC}, using observations taken during persistent emission at orbital phases close to 0.5. The soft excess can be well fitted as a blackbody with temperature $\rm {kT_{bb}}$ = $\rm {0.13\pm 0.02}$ keV. $\rm {kT_{bb}}$ did not vary appreciably with intensity of the source. By assuming that the distance of the source is its lower limit of 2.5 kpc, a luminosity of the soft excess… Expand

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This article was processed by the author using Springer-Verlag L A T E X A&A style file L-AA version 3
  • This article was processed by the author using Springer-Verlag L A T E X A&A style file L-AA version 3