Fast optical variability in supergiant X-ray binaries

Open Access

Table B.3.

Noise model parameters - BeXBs.

Source	Sector	α₀/10⁻³	f_c [d⁻¹]	γ	α_w/10⁻⁵	χ_red²
RX J0146.9+6121	58	0.52 ± 0.09	1.35 ± 0.28	1.80 ± 0.18	1.46 ± 0.17	1.10

X Per	18	0.28 ± 0.03	3.66 ± 0.35	2.55 ± 0.23	0.84 ± 0.12	0.98
X Per	43	0.46 ± 0.06	2.59 ± 0.33	2.16 ± 0.20	1.11 ± 0.17	0.94
X Per	44	0.64 ± 0.08	2.32 ± 0.29	2.17 ± 0.17	0.81 ± 0.15	0.83
X Per	70	0.31 ± 0.06	1.54 ± 0.40	1.45 ± 0.17	0.34 ± 0.20	1.08
X Per	71	0.28 ± 0.04	2.41 ± 0.37	1.81 ± 0.15	0.00 ± 0.11	1.26
X Per	Mean	0.42 ± 0.02	2.73 ± 0.12	2.14 ± 0.07	0.72 ± 0.06	1.50

4U 1036-56	10	0.99 ± 0.17	1.35 ± 0.28	1.70 ± 0.15	1.40 ± 0.28	1.07
4U 1036-56	36	0.86 ± 0.12	1.89 ± 0.29	2.04 ± 0.19	2.39 ± 0.27	0.94
4U 1036-56	37	1.29 ± 0.22	1.32 ± 0.25	1.83 ± 0.16	2.05 ± 0.28	0.99
4U 1036-56	63	1.11 ± 0.17	1.50 ± 0.24	1.95 ± 0.15	1.22 ± 0.19	1.13
4U 1036-56	64	1.25 ± 0.22	1.21 ± 0.24	1.78 ± 0.14	1.38 ± 0.24	1.08
4U 1036-56	Mean	1.25 ± 0.08	1.44 ± 0.10	1.85 ± 0.06	1.94 ± 0.11	1.19

4U 2206+543	16	1.04 ± 0.15	1.76 ± 0.28	1.85 ± 0.14	0.71 ± 0.25	0.96
4U 2206+543	17	1.03 ± 0.15	1.89 ± 0.27	2.08 ± 0.18	2.15 ± 0.26	0.84
4U 2206+543	56	0.75 ± 0.09	2.51 ± 0.31	2.09 ± 0.15	0.44 ± 0.20	1.07
4U 2206+543	57	0.91 ± 0.13	1.95 ± 0.30	1.84 ± 0.14	0.30 ± 0.24	1.04
4U 2206+543	Mean	1.06 ± 0.06	1.97 ± 0.12	1.94 ± 0.06	0.99 ± 0.11	1.15

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