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Table 1
X-ray data analysis results.
| Satellite | XMM-Newton/PN | Swift/XRT1 | Swift/XRT2 | Swift/XRT3 | XMM-Swift | |
| Obs date | 2002-03-26 | 2007-04-06 | 2009-05-05 | 2009-06-05 | Combined fita | |
|
|
||||||
| kB T (keV) | 0.6 ± 0.2 | – | – | – | 0.8 |
|
| normkTbc (×10-5) | 3.0 ± 2.0 | – | – | – | 4 ± 2 | |
| NH (×1021 cm-2) | 0.54 ± 0.01 | 0.98 |
1.4 |
0.6 |
1.1 ± 0.1 | |
| Γ | 1.89 ± 0.04 | 2.00 |
2.20 |
2.03 |
1.89 ± 0.04 | |
norm ( × 10-3) |
1.18 ± 0.05 | 0.85 |
0.71 |
0.60 |
1.18 ± 0.05 | |
| nXMMd | – | – | – | – | 1 | |
| nSwift1d | – | – | – | – | 0.60 ± 0.04 | |
| nSwift2d | – | – | – | – | 0.45 ± 0.05 | |
| nSwift3d | – | – | – | – | 0.44 ± 0.04 | |
| χ2(d.o.f) | 410(372) | 21(29) | 9(11) | 15(14) | 455(430) | |
|
|
||||||
| Flux(0.5−2 keV)e | 2.7 × 10-12 | 1.9 × 10-12 | 1.6 × 10-12 | 1.33 × 10-12 | – | |
| Flux(2−10 keV)e | 3.6 × 10-12 | 2.11 × 10-12 | 1.42 × 10-12 | 1.45 × 10-12 | – | |
Notes.
(b)
Normalization for APEC model is 
dV with the abundance table set to Anders & Grevesse (1989).
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