Investigating the nature of the 2.4 h-period eclipsing cataclysmic variable W2 in 47 Tuc

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Table B.1.

Best-fit values of the seven data sets 955, 2735, 2736, 2737, 2738, 15747, 16527 with the power law model.

(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)
Obs.	$N_{H}^{47 Tuc + local}$ $N_{\mathrm{H}}^{\mathrm{47 Tuc + local}}$	Γ	F_abs	$χ_{red}^{2}$ $\chi^2_{\rm red}$ (d.o.f.)^a	n.h.p.^b	Γ	F_abs
	(10²¹ cm⁻²)		(10⁻¹⁴ erg cm⁻² s⁻¹)				(10⁻¹⁴ erg cm⁻² s⁻¹)

955	2.0 $_{- 2.0}^{+ 14.2}$ $^{+14.2}_{-2.0}$	1.3 $_{- 0.5}^{+ 1.1}$ $^{+1.1}_{-0.5}$	8 ± 4	0.18(2)	0.84	1.3 $_{- 0.4}^{+ 0.5}$ $^{+0.5}_{-0.4}$	7 $_{- 2}^{+ 4}$ $^{+4}_{-2}$
2735	1.7 $_{- 1.7}^{+ 2.2}$ $^{+2.2}_{-1.7}$	1.4 $_{- 0.2}^{+ 0.3}$ $^{+0.3}_{-0.2}$	7 ±1	1.03(15)	0.42	1.5 ± 0.2	6.4 $_{- 0.8}^{+ 1.2}$ $^{+1.2}_{-0.8}$
2736	4.0 $_{- 2.9}^{+ 3.7}$ $^{+3.7}_{-2.9}$	1.6 ± 0.3	6 ± 1	1.31(14)	0.19	1.5 ± 0.2	6.2 $_{- 0.8}^{+ 1.0}$ $^{+1.0}_{-0.8}$
2737	3.8 $_{- 2.2}^{+ 2.6}$ $^{+2.6}_{-2.2}$	1.5 $_{- 0.2}^{+ 0.3}$ $^{+0.3}_{-0.2}$	8 ± 1	2.02(18)	0.01	1.4 ± 0.2	8 ± 1
2738	2.7 $_{- 2.3}^{+ 2.5}$ $^{+2.5}_{-2.3}$	1.8 ± 0.3	7 ± 1	0.93(18)	0.54	1.75 ± 0.2	7.0 $_{- 0.8}^{+ 1.2}$ $^{+1.2}_{-0.8}$
15747	2.9 (frozen)	1.7 ± 0.3	5 ± 1	0.47(7)	0.86	1.65 ± 0.3	5.1 $_{- 0.8}^{+ 1.1}$ $^{+1.1}_{-0.8}$
16527	2.9 (frozen)	1.3 $_{- 0.4}^{+ 0.5}$ $^{+0.5}_{-0.4}$	4 $_{- 1}^{+ 2}$ $^{+2}_{-1}$	2.33(3)	0.07	1.3 $_{- 0.4}^{+ 0.5}$ $^{+0.5}_{-0.4}$	4 $_{- 1}^{+ 2}$ $^{+2}_{-1}$

Notes. The fit was performed assuming $N_{H}^{GAL} = 5.5 \times 10^{20}$ $N_{\mathrm{H}}^{\mathrm{GAL}} = 5.5 \times 10^{20}$ cm⁻² and for two different cases: independent fits for each spectrum (columns 2–6) and simultaneous fit with the same local absorption (columns 7–8). The latter fit resulted in $N_{H}^{47 Tuc + local} = (2 . 6_{- 1.1}^{+ 1.2}) \times 10^{21}$ $N_{\mathrm{H}}^{\mathrm{47 Tuc + local}}=(2.6^{+1.2}_{-1.1})\times 10^{21}$ cm⁻², with $χ_{red}^{2}$ $\chi^2_{\rm red}$ (d.o.f.) = 1.22(81) and n.h.p. = 0.08. Fluxes are computed in the energy range 0.5–6 keV. ^(a)Degrees of freedom (d.o.f). ^(b)Null hypothesis probability (n.h.p.).

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