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Table 2

Results of absorbed power law fits to the 2.5–10 keV continuum.

N H,h Normh (at 1 keV) Γh N H,l Norml (at 1 keV) Γl χ2/d.o.f.
[1022 cm-2] [keV-1 cm-2 s-1] [1022 cm-2] [keV-1 cm-2 s-1]

Tied NH 1.68 ± 0.18 0.072 ± 0.004 0.507 ± 0.030 =NH,h 0.349 ± 0.017 1.115 ± 0.027 955/354
Tied Γ 5.76 ± 0.25 0.178 ± 0.009 0.989 ± 0.026 0.72 ± 0.18 0.277 ± 0.013 =Γh 473/354
No ties 6.7 ± 0.5 0.23 ± 0.03 1.13 ± 0.06 0.52 ± 0.19 0.261 ± 0.014 0.956 ± 0.029 454/353

Notes. The subscript “h” and “l” refer to model components applied to spectra taken during high- and low-hardness periods, respectively. We list best-fit results for three cases: no ties between parameters describing low- and high-hardness spectra (“no ties”), same equivalent hydrogen column width of absorption for low- and high-hardness spectra (“tied NH”), and same photon index for low- and high-hardness spectra (“tied Γ”).

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