Table 3.
Results of the fitting of NuSTAR and XMM-Newton spectra of Apep using different models.
| Parameter | Units | TBabs*apec | TBabs*vphabs*vpshock | TBabs*vphabs*(vpshock+po) |
|---|---|---|---|---|
| NH | 1022 cm−2 | 2.67 ± 0.02 | 1.63 (fixed),  |
1.63 (fixed),  |
| k T | keV | 5.15 ± 0.07 |
 |
4.91 ± 0.11 |
| norm1 | 10−2 cm−5 |
 |
 |
 |
| A | 0.52 ± 0.02 | – | – | |
| Fe | – | 0.54 ± 0.02 | 0.58 ± 0.02 | |
| Ne | – |
 |
 |
|
| S | – | 0.47 ± 0.07 |
 |
|
| Ca | – |
 |
 |
|
| τu | 1011 s cm3 | – |
 |
 |
| Γ | – | – | 1.72 (fixed) | |
| norm2 | 10−4 keV−1 cm−2 s−1 | – | – |
 |
| Cstat/bins (PN) | 234.3/112 | 136.6/112 | 137.4/112 | |
| Cstat/bins (MOS2) | 206.9/115 | 134.6/115 | 141.0/115 | |
| Cstat/bins (FPMA) | 125.7/91 | 124.8/91 | 112.1/91 | |
| Cstat/bins (FPMB) | 122.6/95 | 114.5/95 | 101.4/95 | |
| Cstat/d.o.f. (total) | 689.5/406 | 510.5/402 | 491.2/401 | |
Notes. C-statistics were used. The errors at the 1σ level are specified for all parameters. A multiplicative constant was also added, with a value set to 1 for FPMA, and fitted for the other instruments to CFPMB = 0.957 ± 0.015, CPN = 0.849 ± 0.010, and CMOS2 = 0.902 ± 0.011. The best model is highlighted in boldface.
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