Table 5
Results of the X-ray spectral fitting for Cyg OB2 #12.
| Facility | Observation ID | norm1 | norm2 |
|
|
 (d.o.f.) |
||||||||||
| (10-12 erg cm-2 s-1) | (10-12 erg cm-2 s-1) | |||||||||||||||
|
|
|
|||||||||||||||
| (10-3 cm-5) | (10-3 cm-5) | Total | Soft | Hard | Total | Soft | Hard | |||||||||
|
|
||||||||||||||||
| XMM-Newton | 0200450201 | 7.24 |
2.41 |
2.52 ± 0.03 | 0.81 ± 0.01 | 1.71 ± 0.04 | 25.1 ± 0.3 | 22.7 ± 0.4 | 2.42 ± 0.05 | 1.23(218) | ||||||
| 0200450301 | 7.13 |
2.49 |
2.54 ± 0.03 | 0.82 ± 0.01 | 1.72 ± 0.03 | 24.9 ± 0.2 | 22.4 ± 0.3 | 2.43 ± 0.04 | 1.14(257) | |||||||
| 0200450401 | 8.32 |
2.61 |
2.82 ± 0.03 | 0.94 ± 0.01 | 1.88 ± 0.02 | 28.6 ± 0.3 | 25.9 ± 0.3 | 2.67 ± 0.03 | 1.36(266) | |||||||
| 0200450501 | 8.80 |
1.35 |
2.27 ± 0.03 | 0.88 ± 0.01 | 1.39 ± 0.03 | 28.2 ± 0.4 | 26.2 ± 0.4 | 2.04 ± 0.05 | 1.07(207) | |||||||
| 0505110301 | 5.11 |
1.46 |
1.66 ± 0.03 | 0.56 ± 0.01 | 1.10 ± 0.03 | 17.4 ± 0.3 | 15.8 ± 0.4 | 1.56 ± 0.05 | 1.29(206) | |||||||
| 0505110401 | 5.35 |
1.67 |
1.81 ± 0.03 | 0.60 ± 0.01 | 1.21 ± 0.03 | 18.4 ± 0.3 | 16.7 ± 0.3 | 1.71 ± 0.05 | 1.18(243) | |||||||
| 0677980601 | 5.10 |
1.35 |
1.60 ± 0.03 | 0.56 ± 0.01 | 1.04 ± 0.03 | 17.2 ± 0.3 | 15.7 ± 0.2 | 1.48 ± 0.04 | 1.13(110) | |||||||
|
|
||||||||||||||||
| Swift | 00031904001–5 | 6.04 |
2.03 ± 0.06 | 0.67 ± 0.02 | 1.36 ± 0.06 | 20.7 ± 0.6 | 18.8 ± 0.7 | 1.94 ± 0.09 | 0.97(105) | |||||||
| 00032767001+2 | 4.38 |
1.47 ± 0.10 | 0.48 ± 0.04 | 0.99 ± 0.11 | 15.0 ± 1.0 | 13.6 ± 1.2 | 1.41 ± 0.16 | 1.23(23) | ||||||||
|
|
||||||||||||||||
| ROSAT | 200109 | 6.88 |
/ | 0.76 ± 0.06 | / | / | 21.4 ± 1.7 | / | 1.25(17) | |||||||
| 900314 | 7.33 |
/ | 0.81 ± 0.03 | / | / | 22.8 ± 0.8 | / | 0.87(78) | ||||||||
|
|
||||||||||||||||
| Suzaku | 402030010 | 7.78 |
2.61 ± 0.03 | 0.86 ± 0.01 | 1.75 ± 0.03 | 26.7 ± 0.3 | 24.2 ± 0.3 | 2.50 ± 0.04 | 1.07(728) | |||||||
Notes. The fitted model has the form wabs ∗ (apec + apec), with the absorption fixed to 1.97 × 1022 cm-2, the temperatures fixed to 0.86 and 2.11 keV, and the ratio of normalization factors norm1/norm2 fixed at 3.26 for the Swift, Suzaku, and ROSAT data. Error bars and energy bands are the same as in Table 2. The MOS2 detector data of Cyg OB2 #12 from three observations of 2004 (Revs. 0901, 0906, and 0911) were not taken into account as small differences between these data and the corresponding MOS1 and pn detectors data in a small zone around 1.3 keV were noticed.
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