Table 1.
Best-fit parameters of the spectral empirical models.
| Model | cPL | cPL+dBB | PC*cPL | PC*(cPL+dBB) | PC*(cPL+dBB) | ||
|---|---|---|---|---|---|---|---|
| Parameter | Value | Units | |||||
| NH Gal (a) | 4 (fixed) | 4 (fixed) | 4 (fixed) | 4 (fixed) | 4 (fixed) | 1020 cm−2 | |
| NH SMC (a) | →0 | →0 | →0 | →0 | < 3 | 1020 cm−2 | |
| TBpcf | NH | − | − |
 |
 |
 |
1022 cm−2 |
| cov. frac. | − | − | 45 ± 3 |
 |
45 ± 3 | % | |
| dBB (b) | kTBB | − |
 |
− |
 |
0.07 (fix) | keV |
| NormBB | − | 6.3−0.6+5.3 | − |
 |
 |
sin θ (RBB/D10)2 | |
| cPL (c) | Γ | 0.85 ± 0.02 |
 |
1.05 ± 0.03 |
 |
 |
− |
| Ec | 20.6 ± 0.9 |
 |
 |
 |
 |
keV | |
| Norm (c) | 101 ± 2 |
 |
 |
 |
 |
10−12 erg cm−2 s−1 | |
| Other information | |||||||
| Total fit stat./d.o.f. | 1399.56/1035 | 954.11/1033 | 940.51/1033 | 923.36/1031 | 940.47/1032 | ||
| Goodness (d) | 100% | 4% | 1% | 0% | 4% | ||
| LX(e) | 4.67 ± 0.08 | 4.13 ± 0.08 | 5.03 ± 0.08 | 4.6 ± 0.2 | 5.03 ± 0.10 | 1037 erg s−1 | |
| Ṁ(e) | 2.60 ± 0.03 | 2.30 ± 0.04 | 2.80 ± 0.04 | 2.55 ± 0.13 | 2.8 ± 0.05 | 1017 g s−1 | |
Notes.
The disk blackbody (diskbb in xspec) radius may be estimated from the normalisation of the model and a distance of 62 kpc (i.e., D10 = 6.2) assuming a disk inclination angle θ.
Cut-off power law (cut-offpl in xspec), where the normalisation is the unabsorbed X-ray flux in the 0.3–80 keV band.
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