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Table 2:

Parameters of the spectral fit of Cyg X-1. $\chi ^2_{\rm r}$ is the reduced chi square, the uncertainties are at 90% confidence level and include a 5% systematic error.

Normalized rate
Photon index Flux $\chi ^2_{\rm r}$ Degrees of freedom
$[{\rm cts \; cm^{-2} \; s^{-1}}]$   $[{\rm erg \; cm^{-2} \; s^{-1}}]$    

0.12
$\rm 1.63^{+0.09}_{-0.08}$ $(7.6 \pm 0.3) \times 10^{-9}$ 1.159 31
0.17 $1.60 \pm 0.11$ $(8.3 \pm 0.4) \times 10^{-9}$ 1.113 32
0.08 $1.74 \pm 0.09$ $(4.6 \pm 0.4) \times 10^{-9}$ 0.986 29

Source LaTeX | All tables | In the text

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