Investigating the consistency of the shape and flux of X-ray reflection spectra in the hard state with an accretion disk reaching close to the black hole

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Volume 691 (November 2024)

A&A, 691 (2024) A85

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Table B.1.

Best-fit model parameters for model B.2.

Component	Parameter	Model B.2
	NuSTAR FPMA	1.0(f)
Constant	NuSTAR FPMB	0.990 $_{- 0.001}^{+ 0.001}$ $_{-0.001}^{+0.001}$
	NICER	1.092 $_{- 0.002}^{+ 0.002}$ $_{-0.002}^{+0.002}$

Gaussian absorption	Line E (keV)	0.614 $_{- 0.001}^{+ 0.001}$ $_{-0.001}^{+0.001}$
(NICER)	Width (σ) (keV)	0.059 $_{- 0.002}^{+ 0.002}$ $_{-0.002}^{+0.002}$
	Strength (keV)	0.124 $_{- 0.004}^{+ 0.004}$ $_{-0.004}^{+0.004}$

Edge	edge E (keV)	2.40 $_{- 0.03}^{+ 0.03}$ $_{-0.03}^{+0.03}$
(NICER)	Max Tau	0.072 $_{- 0.007}^{+ 0.007}$ $_{-0.007}^{+0.007}$

Interstellar absorption	N_H(10²² cm⁻²)	0.14(f)

	Photon Index	1.385 $_{- 0.007}^{+ 0.008}$ $_{-0.007}^{+0.008}$
Power law	cut-off(keV)	300(f)
	Norm	0.653 $_{- 0.013}^{+ 0.014}$ $_{-0.013}^{+0.014}$
	Flux	5.00×10⁻⁸

	r_in (R_g)	1.43 $_{- 0.16}^{+ 0.27}$ $_{-0.16}^{+0.27}$
	r_out (R_g)	1000(f)
	L (L_Edd)	3.70 $_{- 0.41}^{+ 0.58} \times 10^{- 4}$ $_{-0.41}^{+0.58}\times10^{-4}$
Inner reflection	ξ_in	6.35×10⁴
	n (10¹⁵ cm⁻³)	5.92 $_{- 0.48}^{+ 0.46} \times 10^{4}$ $_{-0.48}^{+0.46}\times10^{4}$
	Norm	1.11×10⁵(f)
	Flux	6.49×10⁻⁹

	r_in (R_g)	285 $_{- 30}^{+ 22}$ $_{-30}^{+22}$
	r_out (R_g)	1000(f)
	L (L_Edd)	1.09 $_{- 0.05}^{+ 0.05} \times 10^{- 3}$ $_{-0.05}^{+0.05}\times10^{-3}$
Outer reflection	ξ_in	388
	n (10¹⁵ cm⁻³)	1.00 $_{- 0.11}^{+ 0.19} \times 10^{3}$ $_{-0.11}^{+0.19}\times10^3$
	Norm	1.11×10⁵(f)
	Flux	2.42×10⁻⁸

	χ²/ν	4519/3904

Notes. Model B.2: i.e., model B with added Gaussian absorption, edge (for NICER), and a constant factor for cross-normalization across different instruments. The given errors for model B.2 represent 1 σ range of fitted parameters. Luminosity (L) is a free parameter from which ξ(r) is computed inside the model, and the value of which at inner radius (ξ_in) is presented. The tabulated flux is the unabsorbed one in units of ergs.cm⁻².sec⁻¹, calculated from XSPEC within energy range 1 eV - 1 MeV. The frozen parameters during fitting are indicated as (f).

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