Revealing the state transition of Cen X-3 at high spectral resolution with Chandra

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Table A.1.

Phase-resolved spectral parameters for the continuum for each interval.

Spectra	Orb. phase	χ²	$N_{H}^{LOC}$ $N_{\mathrm{H}}^{\mathrm{LOC}}$	C	$N_{H}^{ISM}$ $N_{\mathrm{H}}^{\mathrm{ISM}}$	K_bb	kT_bb
			(×10²² cm⁻²)		(×10²² cm⁻²)	(×10⁻³)	(keV)
1.1	0.14	1.2	27 $_{- 6}^{+ 7}$ $^{+7}_{-6}$	1.00 $_{- 0.10}^{+ 0.01}$ $^{+0.01}_{-0.10}$	1.9 $_{- 0.08}^{+ 0.0}$ $^{+0.0}_{-0.08}$	2.7 ± 0.2	1.80 $_{- 0.05}^{+ 0.06}$ $^{+0.06}_{-0.05}$
1.2	0.18	1.2	38 $_{- 8}^{+ 10}$ $^{+10}_{-8}$	1.00 $_{- 0.10}^{+ 0.01}$ $^{+0.01}_{-0.10}$	1.5 $_{- 0.1}^{+ 0.2}$ $^{+0.2}_{-0.1}$	3.40 $_{- 0.24}^{+ 0.27}$ $^{+0.27}_{-0.24}$	1.60 ± 0.05
1.3	0.21	1.2	47 $_{- 7}^{+ 9}$ $^{+9}_{-7}$	1.00 $_{- 0.06}^{+ 0.01}$ $^{+0.01}_{-0.06}$	1.30 $_{- 0.02}^{+ 0.10}$ $^{+0.10}_{-0.02}$	4.10 $_{- 0.24}^{+ 0.26}$ $^{+0.26}_{-0.24}$	1.60 ± 0.05
1.4	0.23	1.5	40 $_{- 4}^{+ 5}$ $^{+5}_{-4}$	1.00 $_{- 0.02}^{+ 0.01}$ $^{+0.01}_{-0.02}$	1.30 $_{- 0.01}^{+ 0.03}$ $^{+0.03}_{-0.01}$	7.0 ± 0.4	2.00 ± 0.05
1.5	0.26	1.4	50 $_{- 5}^{+ 6}$ $^{+6}_{-5}$	1.00 $_{- 0.03}^{+ 0.01}$ $^{+0.01}_{-0.03}$	1.30 $_{- 0.01}^{+ 0.01}$ $^{+0.01}_{-0.01}$	11.0 $_{- 0.8}^{+ 1.0}$ $^{+1.0}_{-0.8}$	2.4 ± 0.1
1.6	0.29	1.5	26±3	1.00 $_{- 0.02}^{+ 0.01}$ $^{+0.01}_{-0.02}$	1.4 ± 0.1	11.0 ± 0.5	2.00 ± 0.05
1.7	0.31	1.1	100 $_{- 13}^{+ 0}$ $^{+0}_{-13}$	1.00 $_{- 0.16}^{+ 0.01}$ $^{+0.01}_{-0.16}$	1.30 $_{- 0.01}^{+ 0.04}$ $^{+0.04}_{-0.01}$	25.0 ± 0.7	1.50 $_{- 0.03}^{+ 0.02}$ $^{+0.02}_{-0.03}$
2.1	0.33	1.3	69 $_{- 8}^{+ 9}$ $^{+9}_{-8}$	1.00 $_{- 0.04}^{+ 0.01}$ $^{+0.01}_{-0.04}$	1.30 $_{- 0.01}^{+ 0.01}$ $^{+0.01}_{-0.01}$	26.0 ± 0.7	1.20 ± 0.02
2.2	0.35	1.2	69 $_{- 9}^{+ 11}$ $^{+11}_{-9}$	1.00 $_{- 0.07}^{+ 0.01}$ $^{+0.01}_{-0.07}$	1.30 $_{- 0.01}^{+ 0.03}$ $^{+0.03}_{-0.01}$	26.0 ± 0.8	1.20 ± 0.02
2.3	0.36	1.1	69 $_{- 8}^{+ 9}$ $^{+9}_{-8}$	1.00 $_{- 0.05}^{+ 0.01}$ $^{+0.01}_{-0.05}$	1.30 $_{- 0.01}^{+ 0.01}$ $^{+0.01}_{-0.01}$	27.0 ± 0.7	1.20 ± 0.02
2.4	0.37	1.2	61 $_{- 6}^{+ 7}$ $^{+7}_{-6}$	1.00 $_{- 0.03}^{+ 0.01}$ $^{+0.01}_{-0.03}$	1.30 $_{- 0.01}^{+ 0.01}$ $^{+0.01}_{-0.01}$	26.0 ± 0.6	1.20 ± 0.02
2.5	0.39	1.1	66 $_{- 7}^{+ 8}$ $^{+8}_{-7}$	1.00 $_{- 0.03}^{+ 0.01}$ $^{+0.01}_{-0.03}$	1.30 $_{- 0.01}^{+ 0.01}$ $^{+0.01}_{-0.01}$	27.0 ± 0.6	1.20 ± 0.02
2.6	0.4	1.1	75 $_{- 8}^{+ 9}$ $^{+9}_{-8}$	1.00 $_{- 0.03}^{+ 0.01}$ $^{+0.01}_{-0.03}$	1.30 $_{- 0.01}^{+ 0.01}$ $^{+0.01}_{-0.01}$	29.0 ± 0.67	1.20 ± 0.02
2.7	0.41	1.2	68 $_{- 7}^{+ 8}$ $^{+8}_{-7}$	1.00 $_{- 0.03}^{+ 0.01}$ $^{+0.01}_{-0.03}$	1.30 $_{- 0.01}^{+ 0.01}$ $^{+0.01}_{-0.01}$	27.0 ± 0.6	1.20 ± 0.02
2.8	0.43	1.1	68 $_{- 7}^{+ 8}$ $^{+8}_{-7}$	1.00 $_{- 0.03}^{+ 0.01}$ $^{+0.01}_{-0.03}$	1.30 $_{- 0.01}^{+ 0.01}$ $^{+0.01}_{-0.01}$	27.0 ± 0.7	1.20 ± 0.02
2.9	0.44	1.2	77 $_{- 8}^{+ 9}$ $^{+9}_{-8}$	1.00 $_{- 0.03}^{+ 0.01}$ $^{+0.01}_{-0.03}$	1.30 $_{- 0.01}^{+ 0.01}$ $^{+0.01}_{-0.01}$	27.0 ± 0.66	1.20 ± 0.02
2.1	0.46	1.2	65 $_{- 7}^{+ 8}$ $^{+8}_{-7}$	1.00 $_{- 0.03}^{+ 0.01}$ $^{+0.01}_{-0.03}$	1.30 $_{- 0.01}^{+ 0.01}$ $^{+0.01}_{-0.01}$	27.0 ± 0.6	1.20 ± 0.02
2.11	0.47	1.1	61 $_{- 6}^{+ 7}$ $^{+7}_{-6}$	1.00 $_{- 0.03}^{+ 0.01}$ $^{+0.01}_{-0.03}$	1.30 $_{- 0.01}^{+ 0.01}$ $^{+0.01}_{-0.01}$	24.0 ± 0.6	1.20 ± 0.02
2.12	0.48	1.1	63 $_{- 7}^{+ 9}$ $^{+9}_{-7}$	1.00 $_{- 0.04}^{+ 0.01}$ $^{+0.01}_{-0.04}$	1.30 $_{- 0.01}^{+ 0.01}$ $^{+0.01}_{-0.01}$	24.0 ± 0.7	1.20 ± 0.02
2.13	0.5	1.1	74 $_{- 8}^{+ 10}$ $^{+10}_{-8}$	1.00 $_{- 0.04}^{+ 0.01}$ $^{+0.01}_{-0.04}$	1.30 $_{- 0.01}^{+ 0.01}$ $^{+0.01}_{-0.01}$	26.0 ± 0.62	1.20 ± 0.02
2.14	0.51	1.2	71 $_{- 8}^{+ 10}$ $^{+10}_{-8}$	1.00 $_{- 0.03}^{+ 0.01}$ $^{+0.01}_{-0.03}$	1.30 $_{- 0.01}^{+ 0.01}$ $^{+0.01}_{-0.01}$	25.0 ± 0.7	1.20 ± 0.02
2.15	0.53	1.1	66 $_{- 7}^{+ 8}$ $^{+8}_{-7}$	1.00 $_{- 0.03}^{+ 0.01}$ $^{+0.01}_{-0.03}$	1.30 $_{- 0.01}^{+ 0.01}$ $^{+0.01}_{-0.01}$	25.0 ± 0.6	1.20 ± 0.02
2.16	0.54	0.8	69 $_{- 18}^{+ 27}$ $^{+27}_{-18}$	1.00 $_{- 0.21}^{+ 0.001}$ $^{+0.001}_{-0.21}$	1.30 $_{- 0.01}^{+ 0.06}$ $^{+0.06}_{-0.01}$	23.0 $_{- 1.5}^{+ 1.6}$ $^{+1.6}_{-1.5}$	1.20 ± 0.05
3.1	0.55	1.1	52 $_{- 6}^{+ 8}$ $^{+8}_{-6}$	0.99 $_{- 0.20}^{+ 0.01}$ $^{+0.01}_{-0.20}$	1.30 $_{- 0.01}^{+ 0.04}$ $^{+0.04}_{-0.01}$	18.0 $_{- 0.7}^{+ 1.0}$ $^{+1.0}_{-0.7}$	1.40 $_{- 0.024}^{+ 0.04}$ $^{+0.04}_{-0.024}$
3.2	0.58	1.2	22 $_{- 2}^{+ 3}$ $^{+3}_{-2}$	1.0 $_{- 0.04}^{+ 0.01}$ $^{+0.01}_{-0.04}$	1.30 $_{- 0.01}^{+ 0.08}$ $^{+0.08}_{-0.01}$	12.0 $_{- 0.3}^{+ 0.4}$ $^{+0.4}_{-0.3}$	1.60 ± 0.02
3.3	0.6	1.1	85 ± 15	1.00 $_{- 0.20}^{+ 0.01}$ $^{+0.01}_{-0.20}$	1.30 $_{- 0.01}^{+ 0.07}$ $^{+0.07}_{-0.01}$	23 ± 1	1.30 $_{- 0.04}^{+ 0.03}$ $^{+0.03}_{-0.04}$

Notes. The first column refers to intervals as shown in Fig. 3.

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