GRO J1008−57: an (almost) predictable transient X-ray binary

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Table 3

Best-fit continuum parameters of GRO J1008−57 determined from the simultaneous 2007 Suzaku and RXTE data (, 1935 d.o.f.) and the quasi-simultaneous 2007 Swift-XRT and RXTE data (, 160 d.o.f.).

Component		Suzaku	Swift	Unit
		RXTE	RXTE

`TBnew`	N _H			10²² cm^-2
`CUTOFFPL` ^a	Γ
	E _fold			keV
	F _PL			10^-9 erg s^-1 cm^-2
`BBODY` ^a	kT			keV
	F _BB			10^-9 erg s^-1 cm^-2
Iron line	E	6.4 (fix)		keV
	σ	10^-6 (fix)		keV
	W			eV
Constants^b	c _HEXTE
	c _XRT	–
	c _XIS0		–
	c _XIS1		–
	c _XIS3		–
	c _PIN		–
	c _GSO		–
	b _PCA

Notes.The fit takes Galactic ridge emission applied to RXTE-PCA into account. The given uncertainties are at the 90%-confidence limit. See Table 4 for the parameters of the Galactic ridge emission model.

^(a)

F_PL and F_BB are unabsorbed fluxes, F_PL is the power-law flux in 15–50 keV, F_BB is the bolometric black-body flux.

^(b)

Detector flux calibration constants, c, are given relative to the RXTE-PCA; the PCA background is multiplied by b_PCA.

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