Table 1: Best fit parameters for a single power law of MOS and MECS. The values given in the first section are for the spatially integrated analysis, while those of the second section are for the MOS annular regions.
  Radius $\Gamma^a$ Kab Fac $\chi^2_r$ (d.o.f.)
MOS  0 $.\mkern-4mu^\prime$5   1.50 $\pm$ 0.02    0.39 $\pm$ 0.01    1.785 $\pm$ 0.009   1.16 (253)
MOS  1'     1.55 $\pm$ 0.01   0.95 $\pm$ 0.02    3.98 $\pm$ 0.01   1.08 (324)
MOS  1 $.\mkern-4mu^\prime$5   1.56 $\pm$ 0.01   1.09 $\pm$ 0.02    4.49 $\pm$ 0.01   1.11 (331)
MOS  2'     1.55 $\pm$ 0.01   1.18 $\pm$ 0.02    4.95 $\pm$ 0.01   1.07 (337)
MECS  4'     1.61 $\pm$ 0.02   1.50 $\pm$ 0.04    5.66 $\pm$ 0.03   0.96 (66)
MECS  8'     1.67 $\pm$ 0.02   1.88 $\pm$ 0.05    6.39 $\pm$ 0.03   0.93 (66)
MECS 12'     1.66 $\pm$ 0.02   2.17 $\pm$ 0.05    7.50 $\pm$ 0.03   1.02 (66)
MECS 15'    1.66 $\pm$ 0.01   2.62 $\pm$ 0.09    9.06 $\pm$ 0.04   1.02 (66)
PDS FOV   2.00 $\pm$ 0.05    6.19 $\pm$ 0.95d    15.9 $\pm$ 0.4e   0.73 (16)
MOS  0 $.\mkern-4mu^\prime$5-1'   1.60 $\pm$ 0.02   0.56 $\pm$ 0.02   2.150 $\pm$ 0.009   1.05 (209)
MOS  1'-1 $.\mkern-4mu^\prime$5   1.61 $\pm$ 0.03   0.14 $\pm$ 0.01   0.528 $\pm$ 0.005   0.88 (72)
MOS  1 $.\mkern-4mu^\prime$5-2'   1.50 $\pm$ 0.05   0.08 $\pm$ 0.01   0.361 $\pm$ 0.004   0.77 (49)
MOS  8'-12'   1.90 $\pm$ 0.06   0.51 $\pm$ 0.05   1.165 $\pm$ 0.02   1.13 (231)
a Errors correspond to 1 standard deviation for one interesting parameter.
b Power law normalisation K is expressed in units of 10-2 photons cm-2 s-1 keV-1 at 1 keV.
c Flux is in units of 10-11 erg cm-2 s-1. It is relative to the 3-10 keV band for the MOS/MECS and to the 20-100 keV band for the PDS. The reported errors are statistical. Systematical errors amount to 5% for MOS flux values and 10% for the MECS.
d The PDS normalisation is obtained dividing the single power law fit result ($5.2\pm0.8$) by the intercalibration factor fMP=0.84 obtained in the combined fit with the MECS spectrum extracted from the circle of 15' radius.
e The PDS flux value is that obtained from the single power law fit ( $13.39\pm0.34$) divided by the intercalibration factor fMP=0.84.

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