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Table 3

Best-fit results for the four XMM-Newton extraction regions.

Parameter Reg 1 Reg 2 Reg 3 Reg 4

kTdbb[keV] 1.00 1.00 0.98 0.91
k dbb 147 157 172 211

kTbb[keV] 2.04 2.06 1.99 1.85
kbb [10-2] 5.8 6.4 6.3 5.9

Egau[keV] 6.79 6.82 6.77 6.70
σgau[keV] 0.39 0.39 0.37 0.43
kgau[10-3] 1.64 2.01 2.38 2.81
EW[eV] 32.4 36.8 43.2 53.2

χ 2 1528 1503 1421 1401
d.o.f. 1512 1512 1512 1485
red. χ2 1.011 0.994 0.94 0.941

Notes.The spectra were extracted from region 1 (all columns), region 2 (without one column), region 3 (without three columns) and region 4 (without five columns). The absorption was frozen to 0.3    ×    1022 cm-2.

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