Table 2.
Best-fit parameters of the intrinsic broadband SED of NGC 3783 in 2000–2001 and December 2016.
| Date | 2000–2001 | 11 DEC 2016 | 21 DEC 2016 |
|---|---|---|---|
| COMT | |||
| Norm | 0.95 ± 0.05 | 9.7 ± 0.3 | 10.3 ± 0.4 |
| Tseed | 1.47 ± 0.05 | 1.08 ± 0.03 | 1.08 ± 0.02 |
| Tc | 0.54 ± 0.02 | 0.13 ± 0.02 | 0.14 ± 0.03 |
| τ | 9.9 ± 0.2 | 22.0 (f) | 22.0 (f) |
| POW | |||
| Norm | 2.40 ± 0.03 | 2.42 ± 0.16 | 3.03 ± 0.19 |
| Γ | 1.61 ± 0.01 | 1.73 ± 0.02 | 1.75 ± 0.02 |
| C-stat / C-expt. | 6092 / 2563 | 2335 / 1552 | 2340 / 1555 |
| L0.3–2 keV | 1.20 | 1.28 | 1.52 |
| L2–10 keV | 1.16 | 0.94 | 1.11 |
| L0.001–10 keV | 10.6 | 18.8 | 21.1 |
| L1–1000 Ryd | 7.01 | 10.2 | 11.9 |
Notes. Parameters followed by (f) are fixed in the fit. The temperature of seed photons is in units of eV, the warm corona temperature in keV, the normalization of the warm comptonization (COMT) component in 1055 ph s−1 keV−1, and the normalization of the power-law (POW) component in 1051 ph s−1 keV−1 at 1 keV. The C-stat refer to the final best-fit, where all obscuration, absorption, emission and extinction effects are taken into account. The luminosities of COMT plus POW in different energy ranges are in units of 1036 W with uncertainties about 3–5%. All quoted errors refer to the statistical uncertainties at the 68.3% confidence level.
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