Table 2.
Results of the fit of the time-averaged EPIC spectra.
| Model | pl + bb + 3 Gaussian | pl + bb + apec + 2 Gaussian | pl + bb + apec + 2 Gaussian |
|---|---|---|---|
| parameter | (fixed abundance) | (free abundance) | |
 (10−21 cm−2) |
1.16 ± 0.13 |  |
 |
| Γ |  |
0.76 ± 0.01 | 0.76 ± 0.02 |
| FluxPL (0.2–12 keV, ×10−11erg cm−2 s−1) |  |
7.78 ± 0.06 | 7.78 ± 0.06 |
| kTBB (eV) |  |
 |
 |
| RBB (km) |  |
 |
 |
| FluxBB (0.2–12 keV, ×10−12erg cm−2 s−1) | 3.0 ± 0.3 | 2.8 ± 0.3 |  |
| kTAPEC (keV) | – |  |
 |
| Abundance (apec) | – | 0.2 (fixed) |  |
| NAPEC (×10−3 cm−5) | – |  |
 |
| FluxAPEC (0.2–12 keV, ×10−13erg cm−2 s−1) | – |  |
 |
| Emission lines | |||
| Eline1 (keV) | 0.97 ± 0.03 | – | – |
| σline1 (keV) |  |
– | – |
| Fluxline1 (×10−5 ph cm−2 s−1) |  |
– | – |
| EWline1 (eV) |  |
– | – |
| Eline2 (keV) |  |
 |
 |
| σline2 (keV) | <0.04 | 0 (fixed) | 0 (fixed) |
| Fluxline2 (×10−5 ph cm−2 s−1) |  |
 |
 |
| EWline2 (eV) |  |
 |
5 ± 3 |
| Eline3 (keV) |  |
 |
 |
| σline3 (keV) | 0 (fixed) | 0 (fixed) | 0 (fixed) |
| Fluxline3 (×10−5 ph cm−2 s−1) | 1.3 ± 0.7 | 1.2 ± 0.7 |  |
| EWline3 (eV) | 18 ± 11 | 18 ± 11 | 18 ± 9 |
| FluxBB/FluxTOT (0.01–12 keV) | 3.8% | 3.5% | 3.6% |
| FluxAPEC/FluxTOT (0.01–12 keV) | – | 1.4% | 1.3% |
| Unabsorbed flux (0.2–12 keV, ×10−11erg cm−2 s−1) |  |
 |
 |
| Luminosity (0.2–12 keV, ×10−37erg s−1) |  |
 |
 |
 /d.o.f. |
1.05/1204 | 1.05/1206 | 1.06/1205 |
Notes. The double-component continuum consists of a power-law and a black-body model, while the broad feature at 0.9–1 keV is described with either a broad Gaussian line or an APEC model. Both a fixed and a free value of the metal abundance are considered in the second case. In addition, two narrow Gaussian lines are needed to account for the positive residuals in the spectrum.
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