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Table 2.
Best-fit parameters derived in this work for the August 2016 spectra of NGC 3783 and the ASCA spectra taken in 1993, 1996, and 2000.
| Date | 12-1993 | 7-1996 | 1-2000 | 22-8-2016 | 25-8-2016 | 11-12-2016 | 21-12-2016 |
|---|---|---|---|---|---|---|---|
| Component 1 | |||||||
| NH (1027 m−2) | – | – | – | – | – | 1.5 ± 0.2 | 2.0 ± 0.2 |
| Cf | – | – | – | – | – | 0.47 ± 0.10 | 0.38 ± 0.03 |
| Component 2 | |||||||
| NH (1027 m−2) | 0.17 ± 0.02 | 0.11 ± 0.02 | 0.036 ± 0.003 | 0.18 ± 0.02 | 0.44 ± 0.06 | 0.8 ± 0.2 | 0.3 ± 0.1 |
| Cf | 0.69 ± 0.02 | 0.27 ± 0.03 | 1.00 ± 0.05 | 0.63 ± 0.05 | 0.45 ± 0.02 | 0.51 ± 0.10 | 0.48 ± 0.03 |
| Power law | |||||||
| 1.91 | 1.78 | 1.86 | 1.81 | 1.78 | 1.71 | 1.75 | |
| L2−10 keV (1036 W) | 2.56 | 3.17 | 3.21 | 1.31 | 1.10 | 0.95 | 1.16 |
| Comptonised disk | |||||||
| L (1036 W) | 20.3 | 8.7 | 7.6 | 11.8 | 8.0 | 15.7 | 17.7 |
| T0 (eV) | 2.3 | 1.3 | 1.5 | 1.5 | 1.3 | 1.1 | 1.1 |
| T1 (eV) | 142 | 141 | 132 | 145 | 129 | 128 | 131 |
| Goodness of fit | |||||||
| C-stat | 539 | 520 | 283 | 5077 | 4721 | 2288 | 2285 |
| Expected C-stat | 228 | 184 | 140 | 4706 | 4497 | 1539 | 1542 |
Notes. For comparison we also list the best-fit parameters as obtained by Mehdipour et al. (2017) for the December 2016 spectra.
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