Table 1
Best-fit results for the analysis of the overall tail and the five sub-tails shown in Fig. 2.
| Index | Normalisation (10−6 ph keV−1 s−1 cm−2) | Area normalisation (ph keV−1 s−1 cm−2 sr−1) | χ2 (d.o.f.) | |
|---|---|---|---|---|
| Total | 1.76 ± 0.06 | 3.49 ± 0.14 | 33.1 ± 1.3 | 70.57 (75) |
| Tail 1 | 1.77 ± 0.08 | 9.5 ± 0.5 | 58 ± 3 | 20.78 (20) |
| Tail 2 | 1.76 ± 0.11 | 7.2 ± 0.5 | 33 ± 2 | 29.92 (22) |
| Tail 3 | 1.76 ± 0.12 | 6.5 ± 0.5 | 30 ± 2 | 17.32 (23) |
| Tail 4 | 1.79 ± 0.13 | 6.8 ± 0.6 | 29 ± 2 | 20.37 (24) |
| Tail 5 | 1.6 ± 0.2 | 4.3 ± 0.6 | 24 ± 3 | 10.07 (14) |
Notes. Tail 1 represents the innermost region and Tail 5 the outermost. We report the spectral index, along with both the flux normalisation at 1 keV and the normalisation obtained by dividing the spectrum by the AREASCAL parameter. We also show the value of the χ2 of the fit and the number of degrees of freedom. The uncertainties are computed at 1σ level.
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