Table 7.
X-ray model parameters.
Model | Parameter | Reflection | Disk wind | Hybrid | Description (unit) |
---|---|---|---|---|---|
TBABS | NH | 1.58 × 1020 | 1.58 × 1020 | 1.58 × 1020 | Galactic column (cm−2) |
XILLVER | N |
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![]() |
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Normalization (2) |
GABS | E | 7.6 ± 0.1 | – | – | Line energy (keV) |
N |
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– | – | Line depth | |
NTHCOMP | Γ |
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2.7 ± 0.1 |
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Photon index |
kTe |
![]() |
> 95 |
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Electron temperature (keV) | |
N | (3 ± 1)×10−4 |
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![]() |
Normalization | |
RELXILL | q | < 4.5 | – | < 5 | Emissivity index |
a | < − 0.45 | – |
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Spin | |
i |
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– |
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Inclination (degrees) | |
log(ξ) |
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- |
![]() |
Ionization (erg cm s−1) | |
AFe | > 8.4 | – |
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Iron abundance (solar) | |
N | (6 ± 1) × 10−6 | – |
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Normalization (2) | |
DISKWIND | Ṁ | – |
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![]() |
Mass outflow rate (ṀEdd) |
fv | – | 1.25 (1) | 2.0 (1) | Terminal velocity parameter | |
LX/LEdd | – | < 0.11 | < 0.04 | X-ray luminosity | |
i | – | 62 (1) | 74 (1) | Inclination (degrees) | |
POWERLAW | Γ |
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1.71 ± 0.05 |
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Photon index |
N | (11 ± 1)×10−4 |
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(17 ± 1)×10−4 | norm. (keV−1 cm−2 s−1) | |
CONSTANT | CFPM | 1.08 ± 0.02 |
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1.07 ± 0.02 | FPM/EPIC-pn ratio |
χ(2)/d.o.f. | 287/277 = 1.03 | 306/281 = 1.09 | 276/275 = 1.00 | Fit statistic |
Notes. (1)In this version of the disk wind model the fv and μ = cos(i) parameters do not interpolate well between grid points, so we fix these parameters to the closest grid point after the intial fit, and do not calculate errors. This issue is fixed in the new version of the model (Matzeu et al. 2022). (2)The normalizations of the XILLVER and RELXILL MODELS are defined based on the flux of the incident spectrum, see Dauser et al. (2016).
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