Table 4.
Spectral-fit results for the [(partcov*xstar500)*(fast32*pow)] model.
2004 | 2008A | 2008B | 2009 | 2014A | 2014B | 2014C | 2015 | |
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Power law emission: pow | ||||||||
Γ |
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N1 keV/10−4 |
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Partially covering absorber: partcov*xstar500 | ||||||||
NH/1022 |
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log ξ |
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Cf (%) |
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Disk wind: fast32 | ||||||||
LX/LEdd (%) |
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0.311t | 0.471t | 0.243t | 0.104t | 0.311t | 0.228t | 0.323t |
υ∞/c |
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μ |
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MOS cross-calibration constant | ||||||||
C | 1.11 ± 0.02 | 1.05 ± 0.04 |
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1.07 ± 0.01 |
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1.05 ± 0.03 | 1.00 ± 0.03 | 1.08 ± 0.03 |
Fit statistics | χ2/ν | 2322/1912 | ||||||
Pnull | 3 × 10−10 | |||||||
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Notes. The accretion disk wind inclination angle and mass outflow rate are kept constant between epochs, while the ionizing hard X-ray luminosity Lx/LEdd is tied to the unabsorbed 2 − 10 keV flux for each epoch. Units: power-law normalization N1 keV [10−4 photons keV−1 cm−2 s−1]; column density NH [1022 cm−2]; ionization parameter ξ [erg cm s−1]; terminal velocity υ∞ [c]; flux f [10−12 erg s−1 cm−2]; luminosity L [1043 erg s−1]. The unabsorbed flux is corrected for both intrinsic and Galactic absorption, as is the luminosity.
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