Table 2
Comparison of the fitting results between minimum and maximum brightness cases.
| Parameter | Min | Max | Min | Max | |
| NH(1) (1022 cm-2) | 0.203 ± 0.041 | 0.258 ± 0.025 | 0.230 ± 0.006 | 0.240 ± 0.005 | |
| kT(1) (keV) | 0.0808 ± 0.0345 | 0.0808 ± 0.0212 | 0.0808 (fixed) | ||
| norm(1) (cm-5) | 0.111 ± 0.150 | 0.295 ± 0.238 | 0.162 ± 0.012 | 0.229 ± 0.014 | |
| NH(2) (1022 cm-2) | 0.283 ± 0.022 | 0.372 ± 0.016 | 0.331 ± 0.016 | 0.342 ± 0.012 | |
| kT(2) (keV) | 0.259 ± 0.006 | 0.288 ± 0.002 | 0.273 (fixed) | ||
| norm(2) (10-2 cm-5) | 1.487 ± 0.162 | 3.064 ± 0.245 | 1.814 ± 0.146 | 2.732 ± 0.162 | |
| NH(3) (1022 cm-2) | 0.674 ± 0.023 | 0.852 ± 0.038 | 0.742 ± 0.021 | 0.740 ± 0.019 | |
| kT(3) (keV) | 0.609 ± 0.006 | 0.679 ± 0.016 | 0.644 (fixed) | ||
| norm(3) (10-2 cm-5) | 1.152 ± 0.027 | 1.089 ± 0.059 | 1.028 ± 0.016 | 1.249 ± 0.017 | |
 (dof) |
4.2 (109) | 5.0 (114) | 4.3 (112) | 5.2 (117) | |
 (T) (10-12 erg cm-2 s-1) |
12.00 ± 1.30 | 15.95 ± 1.60 | 12.01 ± 0.04 | 15.94 ± 0.04 | |
| (S) (10-12 erg cm-2 s-1) |
3.28 ± 1.33 | 4.24 ± 1.35 | 3.28 ± 0.02 | 4.23 ± 0.02 | |
| (M) (10-12 erg cm-2 s-1) |
6.29 ± 0.15 | 8.58 ± 0.20 | 6.26 ± 0.02 | 8.60 ± 0.02 | |
| (H) (10-12 erg cm-2 s-1) |
2.43 ± 0.02 | 3.13 ± 0.02 | 2.43 ± 0.02 | 3.11 ± 0.02 | |
Notes. For the last two columns, the flux ratios max/min are 1.327 ± 0.006, 1.289 ± 0.010, 1.375 ± 0.005, and 1.282 ± 0.013 for the total (0.3–4. keV), soft (0.3–0.6 keV), medium (0.6–1.2 keV), and hard (1.2–4. keV) bands, respectively. As explained in Nazé et al. (2012), the reduced χ2 values are large mostly because of remaining calibration uncertainties (both in the atomic and instrumental sides), which become particularly visible for such a bright object for which Poissonian errors are very small. Flux errors correspond to 1σ and were derived using the “flux err” command under Xspec – if asymmetric, the highest value is reported here.
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