Table 2
Best-fit parameters of the broad-band continuum model components for IC 4329A.
| Parameter | Value |
|---|---|
| Primary X-ray power-law component (pow): | |
| Normalisation | 1.77 ± 0.01 (2003) |
| 2.33 ± 0.01 (2017) | |
| Photon index Γ | 1.78 ± 0.01 |
| Disk component: optical-UV and the soft X-ray excess (comt): | |
| Normalisation | 1.4 ± 0.1 |
| Tseed (eV) | 0.8 ± 0.1 |
| Tseed (eV) | 75 ± 3 |
| Optical depth т | 33 ± 2 |
| X-ray reflection (refl): | |
| Incident power-law Norm. | 2.05 (f) |
| Incident power-law Γ | 1.78 (f) |
| Reflection scales | 0.43 ± 0.02 |
| σv (km s−1) | 3400 ± 500 |
| Thermal IR emission components (bb): | |
| BB 1: T (eV) | 0.0077 ± 0.0001 |
| BB 1: Flux | 1.59 ± 0.02 |
| BB 2: T (eV) | 0.042 ± 0.001 |
| BB 2: Flux | 2.3 ± 0.2 |
| BB 3: T (eV) | 0.121 ± 0.003 |
| BB 3: Flux | 3.4 ± 0.4 |
Notes. The power-law normalisation of the pow and refl components is in units of 1052 photons s−1 keV−1 at 1 keV. The normalisation of the Comptonised disk component (comt) is in units of 1057 photons s−1 keV−1. The flux of the bb components are in 10−10 erg cm−2 s−1. The high-energy exponential cut-off of the power-law for both pow and refl is fixed to 186 keV. The photon index Γ of the incident power-law for the reflection component (refl) is set to the Γ of the observed primary power-law continuum ( pow).
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