Table 4.
Best-fit parameters of the ASCA spectra of NGC 7469 in the 0.45–10 keV range using the model: phabs*(bmc+N*Gaussian)*edge.
| Model | Parameter | 71028000 | 71028010 | 71028030 | 15030000 | 18931126 | |
|---|---|---|---|---|---|---|---|
| phabs | NH ( × 1021 cm−2) | 3.5 ± 0.6 | 3.0 ± 0.9 | 2.7 ± 0.1 | 3.0 ± 0.2 | 3.1 ± 0.1 | |
| bmc | Γbmc | 1.8 ± 0.1 | 1.86 ± 0.04 | 1.74 ± 0.07 | 1.81 ± 0.06 | 1.64 ± 0.09 | |
| Ts (eV) | 140 ± 30 | 160 ± 20 | 200 ± 40 | 220 ± 30 | 210 ± 20 | ||
| logA | 0.33 ± 0.05 | 0.35 ± 0.04 | 0.3 ± 0.1 | 0.35 ± 0.07 | 0.4 ± 0.1 | ||
| Nbmc†† | 7.5 ± 0.1 | 7.1 ± 0.2 | 6.0 ± 0.1 | 6.7 ± 0.2 | 6.4 ± 0.1 | ||
| Gaussian††† | Eline1 (keV) | Fe Kα | 6.4 ± 0.1 | 6.31 ± 0.09 | 6.4 ± 0.1 | 6.42 ± 0.04 | 6.38 ± 0.09 |
| σline1 (eV) | 200 ± 10 | 150 ± 60 | 170 ± 90 | 110 ± 30 | 160 ± 30 | ||
| Nline1 | 8.9 ± 0.3 | 3.7 ± 0.5 | 5.3 ± 0.1 | 1.6 ± 0.2 | 9.4 ± 0.5 | ||
| Eline2 (keV) | ··· | 1.5 ± 0.1 | 1.51 ± 0.08 | 1.52 ± 0.09 | 1.53 ± 0.06 | 1.50 ± 0.09 | |
| Eline3 (keV) | ··· | 1.13 ± 0.09 | 1.14 ± 0.07 | 1.14 ± 0.02 | 1.12 ± 0.03 | 1.12 ± 0.08 | |
| Eline4 (keV) | Ne X Ly α | 1.03 ± 0.07 | 1.03 ± 0.08 | 1.0 ± 0.1 | 1.04 ± 0.05 | 1.02 ± 0.07 | |
| Eline5 (keV) | ··· | 0.94 ± 0.06 | 0.93 ± 0.04 | 0.94 ± 0.09 | 0.94 ± 0.08 | 0.93 ± 0.09 | |
| Eline6 (keV) | Ne IX | 0.91 ± 0.08 | 0.90 ± 0.08 | 0.9 ± 0.1 | 0.91 ± 0.07 | 0.91 ± 0.08 | |
| Eline7 (keV) | O XIII Ly7 | 0.86 ± 0.09 | 0.87 ± 0.07 | 0.86 ± 0.07 | 0.86 ± 0.04 | 0.86 ± 0.09 | |
| Eline8 (keV) | O XIII Ly6 | 0.85 ± 0.07 | 0.85 ± 0.09 | 0.85 ± 0.06 | 0.84 ± 0.09 | 0.85 ± 0.07 | |
| Eline9 (keV) | O XIII Ly5 | 0.84 ± 0.08 | 0.84 ± 0.03 | 0.84 ± 0.02 | 0.84 ± 0.07 | 0.83 ± 0.08 | |
| Eline10 (keV) | ··· | 0.8 ± 0.1 | 0.81 ± 0.05 | 0.80 ± 0.06 | 0.81 ± 0.09 | 0.81 ± 0.09 | |
| Eline11 (keV) | ··· | 0.79 ± 0.05 | 0.79 ± 0.09 | 0.78 ± 0.06 | 0.77 ± 0.02 | 0.78 ± 0.08 | |
| Eline12 (keV) | O VII | 0.74 ± 0.03 | 0.75 ± 0.08 | 0.74 ± 0.05 | 0.74 ± 0.06 | 0.75 ± 0.09 | |
| Eline13 (keV) | ··· | 0.73 ± 0.02 | 0.73 ± 0.09 | 0.73 ± 0.02 | 0.73 ± 0.03 | 0.73 ± 0.08 | |
| Eline14 (keV) | ··· | 0.72 ± 0.08 | 0.72 ± 0.04 | 0.72 ± 0.08 | 0.72 ± 0.05 | 0.72 ± 0.09 | |
| Eline15 (keV) | ··· | 0.71 ± 0.04 | 0.71 ± 0.06 | 0.70 ± 0.09 | 0.69 ± 0.09 | 0.71 ± 0.07 | |
| Eline16 (keV) | ··· | 0.67 ± 0.09 | 0.66 ± 0.08 | 0.67 ± 0.02 | 0.68 ± 0.07 | 0.68 ± 0.09 | |
| Eline17 (keV) | O VIII Ly α | 0.65 ± 0.07 | 0.65 ± 0.04 | 0.64 ± 0.09 | 0.64 ± 0.06 | 0.65 ± 0.08 | |
| Eline18 (keV) | ··· | 0.61 ± 0.08 | 0.61 ± 0.04 | 0.6 ± 0.1 | 0.61 ± 0.05 | 0.60 ± 0.04 | |
| Eline19 (keV) | OVII | 0.62 ± 0.05 | 0.62 ± 0.07 | 0.62 ± 0.09 | 0.63 ± 0.07 | 0.62 ± 0.08 | |
| edge | Eedge (keV) | Si XIV Lyα | 2.0 ± 0.1 | 2.01 ± 0.06 | 2.0 ± 0.2 | 2.04 ± 0.06 | 2.03 ± 0.09 |
| τmax ( × 10−3) | 7.43 ± 0.06 | 6.1 ± 0.1 | 6.5 ± 0.2 | 5.1 ± 0.3 | 6.0 ± 0.1 | ||
| χ2 (d.o.f.) | 1.09 (137) | 1.01 (268) | 1.07 (116) | 1.09 (162) | 0.82 (94) | ||
Notes. Errors are given at the 90% confidence level.
Normalization parameters of BMC component is in units of 
erg s−1 kpc−2, where 
is soft photon luminosity in units of 1034 erg s−1, d10 is the distance to the source in units of 10 kpc, while the Gaussian component is in units of keV−1 cm−2 s−1 at 1 keV and 10−5 × total photons cm−2 s−1 at 1 keV. Ts is the temperature of the seed photon component (in keV), while Γbmc is the index of the BMC component.
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