Open Access
Table 2.
Best-fit spectral parameters to describe the first part (black points in Fig. 3), low luminosity state (blue points in Fig. 3), and high luminosity state (i.e., flares; red points in Fig. 3).
| First part | ||||
|---|---|---|---|---|
| Parameters | Model A (a) | |||
| NH (1022 cm−2) |
 |
|||
| Γ |
 |
|||
| normpow |
 |
|||
| constant (MOS1 wrt pn) |
 |
|||
| constant (MOS2 wrt pn) |
 |
|||
| constant (NuSTAR-A wrt pn) |
 |
|||
| χ2 (d.o.f.) | 44.31 (46) | |||
| Null hypothesis prob. | 0.543 | |||
| FX, 0.3 − 60 keV (erg cm−2 s−1) | 8.9 ± 1.8 × 10−13 | |||
| FX, 4 − 60 keV (erg cm−2 s−1) | 8.3 ± 1.8 × 10−13 | |||
| Low | ||||
| Parameters | Model A (a) | Model B (b) | ||
| NH (1022 cm−2) |
 |
< 48 (3σ) | ||
| Γ |
 |
 |
||
| normpow |
 |
 |
||
| Ecut (keV) |
 |
|||
| Efold (keV) |
 |
|||
| constant (B wrt A) |
 |
 |
||
| χ2 (d.o.f.) | 43.87 (39) | 34.92 (37) | ||
| Null hypothesis prob. | 0.273 | 0.567 | ||
| Fx, 4 − 60 keV (erg cm−2 s−1) | 8.8 ± 0.9 × 10−12 | 7.8 ± 0.7 × 10−12 | ||
| High | ||||
| Parameters | Model C (c) | Model D (d) | Model E (e) | |
| NH (1022 cm−2) |
 |
 |
 |
|
| Γ1 |
 |
 |
 |
|
| normpow1 |
 |
 |
 |
|
| Ecut (keV) |
 |
|||
| Efold (keV) |
 |
|||
| Egabs (keV) |
 |
|||
| σgabs (keV) |
 |
|||
| Strengthgabs |
 |
|||
| Γ2 |
 |
 |
||
| normpow2 |
 |
 |
||
| constant (B wrt A) |
 |
 |
 |
|
| χ2 (d.o.f.) | 106.62 (86) | 116.91 (87) | 103.79 (85) | |
| Null hypothesis prob. | 0.0653 | 0.0180 | 0.0812 | |
| FX, 4 − 60 keV (erg cm−2 s−1) | 1.81 ± 0.08 × 10−10 | 1.89 ± 0.09 × 10−10 | 1.79 ± 0.09 × 10−10 | |
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