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GINGA All‐Sky Monitor Observations of Cygnus X‐1

  • Authors: Shunji Kitamoto, Wataru Egoshi, Sigenori Miyamoto, Hiroshi Tsunemi, James C. Ling, Wm. A. Wheaton, and B. Paul

Kitamoto et al. 2000 The Astrophysical Journal 531 546.

  • Provider: AAS Journals

Caption: Fig. 2.

Energy spectrum of Cyg X‐1 from 1 keV to 500 keV. The 1–20 keV data are from the Ginga ASM averaged over 4.5 yr. The 20–500 keV data are from SMM HXRBS observations in 1987–1988. The best‐fit unsaturated Comptonization model is also plotted by a histogram.

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