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Table 3.

Best-fit parameters for the joint NuSTAR and Swift/XRT spectrum approximation with CONSTANT × PHABS(COMPTT + GAUSSIAN) model.

Model Parameters Unit Value
Constant NuSTARa 0.968 ± 0.003
Swift/XRTb 0.63 ± 0.02

Phabs NH 1022 cm−2 6.3 ± 0.5

CompTT T0 keV 1.17 ± 0.02
kT keV 6.82 ± 0.04
τp 5.77 ± 0.06

Gaussian EFe keV 6.44 ± 0.03
σFe keV 0.21 ± 0.04
norm 10−4 ph s−1 cm−2 1.0 ± 0.1

F0.5−79 10−10 erg s−1 cm−2 4.65 ± 0.03
F0.5−10 10−10 erg s−1 cm−2 1.26 ± 0.02

C-value 1477
d.o.f. 1572

Notes.

(a)

Cross-calibration normalization factor between FPMA and FMPB instruments on board NuSTAR.

(b)

Cross-calibration normalization factor between the Swift/XRT and NuSTAR/FPMA instruments.

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