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 1.

Best-fit continuum parameters with empirical models. Both models also include the line components described in Table 2, and the statistical fit value refers to the final model with all line components.

	TBabs		diskbb			thcomp		constant
Model	N_H	kT_in	Norm	R_in^(a)	Γ	C_frac	kT_e	C_rsl^(b)	F_1 − 10	L_1 − 10^(c)	Fit statistic
	[10²²								[erg s⁻¹	10⁻⁴	C-stat
	cm⁻²]	[keV]		[km]			[keV]		cm⁻²]	[L/L_Edd]	/d.o.f.

Pure	0.15	1.77	0.14	0.41	/	/	/	$1 . 0_{- 0.04}^{+ 0.03}$ $Mathematical equation: $ 1.0_{-0.04}^{+0.03} $$	2.55 ⋅ 10⁻¹¹	1.45	3212/3698
disk	±0.01	±0.03	±0.01	±0.01

Compt.	0.16	$1 . 65_{- 0.12}^{+ 0.11}$ $Mathematical equation: $ 1.65_{-0.12}^{+0.11} $$	$0 . 18_{- 0.04}^{+ 0.05}$ $Mathematical equation: $ 0.18_{-0.04}^{+0.05} $$	$0 . 47_{- 0.05}^{+ 0.06}$ $Mathematical equation: $ 0.47_{-0.05}^{+0.06} $$	$3 . 5_{- 1.5}^{+ 0.0} †$ $Mathematical equation: $ 3.5_{-1.5}^{+0.0}\dagger $$	$0 . 57_{- 0.5}^{+ 0.16}$ $Mathematical equation: $ 0.57_{-0.5}^{+0.16} $$	100^‡	$1 . 0_{- 0.03}^{+ 0.04}$ $Mathematical equation: $ 1.0_{-0.03}^{+0.04} $$	2.55 ⋅ 10⁻¹¹	1.45	3207/3696
disk	±0.01

Notes. The energy bands used for the flux and luminosity calculations are given in keV. † Parameters unconstrained within the allowed parameter space (2−3.5). ‡ Frozen parameter. (a) Computed from diskbb normalization assuming a distance of 6.2 kpc and an inclination of 72° (MacDonald et al. 2014). (b) Due to the broader energy band of Xtend and the potential uncertainty in the Ls events in Resolve, we froze the Xtend constant factor to 1 and allowed that of Resolve to vary freely. (c) Computed using the orbital parameters of MacDonald et al. (2014) (see Sect. 1).

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