The Swift-BAT survey reveals the orbital period of three high-mass X-ray binaries

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Table 2

Spectral fitting results.

	IGR J05007−7047	IGR J13186−6257	IGR J17354−3255

N_H (10²² cm^-2)	< 0.17	6	7 ± 2
Γ	0.3 ± 0.2	0.5 ± 0.5	1.7
E_cut (keV)	12 ± 2	16^a	> 18
Flux^b 0.2–10 keV	0.86	5.7	1.1
Flux^b 10–100 keV	1.9	1.6 ± 0.4	2.6
χ²/d.o.f.	25.4/32	21.5/20	23.2/26
C_BAT	0.8	0.06	1.4

Notes. Summary of spectral fits using the cutoffpl model for the combined Swift-XRT and Swift-BAT datasets.

^(a)

Parameter frozen in the fitting.

^(b)

Flux in units of 10^-11 erg cm^-2 s^-1 .

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