An X-ray study of changing-look active galactic nuclei

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Table 3.

General properties of the Sy1 (left), Sy2 (right), and CL-AGN (indicated in yellow) sample galaxies.

Sy1, CL-AGN	D ^( † )	M_BH	L_x, 44^{( † †)}	$\bar{Γ}$ $\bar\Gamma$	Sy2 AGN	D ^( † )	M_BH	L_x, 40^{( † †)}	$\bar{Γ}$ $\bar\Gamma$
source	(Mpc)	(×10⁶ M_⊙)			source	(Mpc)	(×10⁶M_⊙)
NGC 7314 ⁽¹⁾	15.4	0.87	0.11	1.80 ± 0.15	NGC 7679	58.6	8.4	3200	1.60±0.06
NGC 3227 ^(2, 3)	20.4	42.2	0.19	1.65±0.12	Mrk 348 ⁽¹³⁾	63.90	38.01	575.4	1.50±1.56
NGC 3516 ^(2, 3)	37.5	42.7	0.62	1.63±0.12	NGC 424 ⁽¹³⁾	47.60	60.5	54.95	1.49±0.90
NGC 4593 ^(2, 3)	42.0	5.36	0.8	1.79±0.14	Mrk 573 ⁽¹³⁾	71.30	23.44	44.6	2.50±2.78
NGC 3783 ^(2, 3)	44.7	29.8	1.7	1.68±0.08	NGC 788 ⁽¹³⁾	56.10	26.91	128.8	1.41±1.67
NGC 7469 ^{(2, 3, 4)}	62.7	12.2	1.47	1.84±0.10	ESO 417–G06 ⁽¹³⁾	65.60	27.54	288.4	1.03±1.25
IC 4329A ^(2, 3)	70.5	9.9	1.06	1.76±0.03	Mrk 1066 ⁽¹³⁾	51.70	16.98	25.11	2.17±2.40
NGC 5548 ⁽⁵⁾	74.5	52.2	2.9	1.69±0.12	3C 98.0 ⁽¹³⁾	124.90	56.23	1348.9	1.04±0.81
Mrk 79 ^(2, 6)	94.3	52.4	2.2	1.71±0.21	Mrk 3 ⁽¹³⁾	63.20	549.54	173.7	1.25±1.33
Ark 120 ^(2, 6)	138	150	7.6	1.73±0.17	Mrk 1210 ⁽¹³⁾	53.60	50.12	204.4	1.01±1.40
Mrk 509 ^(2, 3)	141	143	2.41	1.72±0.08	IC 2560 ⁽¹³⁾	34.80	2.88	3.7	1.32±1.50
Fairall 9 ^(2, 3)	198	255	10.1	1.84±0.18	NGC 3393 ⁽¹³⁾	48.70	125.89	43.6	2.67±3.04
MR 2251-178 ⁽⁷⁾	271	240	46.6	1.75±0.11	NGC 4507 ⁽¹³⁾	46.00	181.97	109.6	1.62±1.70
NGC 4051 ^{(2, 3, 8)}	12.7	1.91	0.05	1.90±0.10	NGC 4698 ⁽¹³⁾	23.40	33.88	1.38	2.16±1.98
NGC 5506 ^(3, 9)	29.1	5.1	1.29	1.85±0.06	NGC 5194 ⁽¹³⁾	7.85	5.37	0.34	2.68±3.01
MCG 63015 ⁽¹⁰⁾	35.8	3.26	0.78	1.76±0.09	Mrk 268 ⁽¹³⁾	161.50	89.12	21.8	2.11±3.07
Mrk 766 ⁽¹¹⁾	57.6	1.76	1.15	2.02±0.20	Circinus ⁽¹³⁾	4.21	51.28	0.63	0.98±0.75
Ark 564 ⁽¹²⁾	98.5	2.6	2.8	2.51±0.09	NGC 5643 ⁽¹³⁾	16.90	1.99	2.75	0.99±1.42
Mrk 335 ^(2, 6)	103	14.2	1.24	1.97±0.51	Mrk 477 ⁽¹³⁾	156.70	15.84	398.1	1.10±1.48
Mrk 110 ^(2, 6)	151	25.1	8.71	1.81±0.16	IC 4518A ⁽¹³⁾	65.20	30.19	114.8	1.94±1.66
1H 0707-495	160	6.8	1.38	2.00±1.06	ESO 138–G01 ⁽¹³⁾	36.00	0.31	169.8	2.31±2.40
	21.3	0.19	0.06	1.60±0.06	NGC 6300 ⁽¹³⁾	14.43	15.13	20.89	1.00±0.99
	156.70	54.95	0.002	1.91±0.07	NGC 7172 ⁽¹³⁾	33.90	158.48	316.2	1.52±1.58
	77.25	726.91	0.098	1.29±1.20	NGC 7212 ⁽¹³⁾	111.80	34.67	64.56	1.07±0.47

Notes. ^( † ) Luminosity distance (D) values are taken from the NED data base. ^{( † †)}L_x, 44 and L_x, 40 are the soft photon luminosities in 2–10 keV energy range in units of 10⁴⁴ and 10⁴⁰ erg/s, respectively. ⁽¹⁾Gu et al. (2006), Elvis et al. (1994); ⁽²⁾Peterson et al. (2004); ⁽³⁾Ricci et al. (2013); ⁽⁴⁾Seifina et al. (2018a); ⁽⁵⁾Bentz & Katz (2015); ⁽⁶⁾Woo & Urry (2002); ⁽⁷⁾Dunn et al. (2008); ⁽⁸⁾Titarchuk et al. (2020); ⁽⁹⁾Nikołajuk et al. (2009); ⁽¹⁰⁾Hu et al. (2016); ⁽¹¹⁾Bentz et al. (2009); ⁽¹²⁾Botte et al. (2004); and ⁽¹³⁾Hernández-García et al. (2015).

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