XRISM reveals a variable, multi-phase outflow-inflow structure during the 2024 X-ray obscured outburst of black hole transient V4641 Sgr

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Table 4.

Best-fit continuum parameters for the individual orbits using a partially covered disk model.

Component	Parameter [unit]	Disk-only model
Component	Parameter [unit]	Orbit 1	Orbit 2	Orbit 3	Orbit 4	Orbit 5
`TBabs`	N_H [10²² cm⁻²]	0.15^†
`cabs*pcfabs`	N_H [10²² cm⁻²]	$8 . 5_{- 1.7}^{+ 2.1}$ $Mathematical equation: $ 8.5_{-1.7}^{+2.1} $$	$63_{- 22}^{+ 50}$ $Mathematical equation: $ 63_{-22}^{+50} $$	$94_{- 38}^{+ 106 †}$ $Mathematical equation: $ 94_{-38}^{+106\dagger} $$	$101_{- 65}^{+ 99 †}$ $Mathematical equation: $ 101_{-65}^{+99\dagger} $$	0^†
`cabs*pcfabs`	f	$0 . 56_{- 0.03}^{+ 0.02}$ $Mathematical equation: $ 0.56_{-0.03}^{+0.02} $$	$0 . 34_{- 0.03}^{+ 0.02}$ $Mathematical equation: $ 0.34_{-0.03}^{+0.02} $$	$0 . 27_{- 0.03}^{+ 0.02}$ $Mathematical equation: $ 0.27_{-0.03}^{+0.02} $$	0.16 ± 0.04	0^†
`diskbb`	kT_in [keV]	1.66 ± 0.03
`diskbb`	norm	0.23 ± 0.02

F_X^(a)	[10⁻¹¹ erg s⁻¹ cm⁻²]	2.19	2.17	2.33	2.65	3.13
L_X^(a)	[10⁻⁴ L_Edd]	1.25	1.24	1.33	1.51	1.79

HR^(b)	/	2.18	1.43	1.37	1.36	1.33
Fit statistic	Xtend	97/71	98/70	93/70	53/66	72/66
Fit statistic	Resolve	1180/1345	1208/1346	975/1342	864/1341	1251/1350

Notes. ^( † )parameter frozen or at the limit of its allowable interval.

^(a)

1−10 keV flux and luminosity after removal of the ISM contribution (TBabs). The Eddington ratio is calculated according to the orbital parameters of MacDonald et al. (2014).

^(b)

3−10/1−3 keV flux hardness ratio after removal of the ISM contribution.

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