2006ApJ...653..137Z

Query : 2006ApJ...653..137Z

2006ApJ...653..137Z - Astrophys. J., 653, 137-151 (2006/December-2)

The unified model of active galactic nuclei. I. Non-hidden broad-line region Seyfert 2 and narrow-line Seyfert 1 galaxies.

ZHANG E.-P. and WANG J.-M.

Abstract (from CDS):

The unified model of Seyfert galaxies suggests that there are hidden broad-line regions (HBLRs) in Seyfert 2 galaxies (S2s). However, there is increasing evidence for the appearance of a subclass of S2s lacking HBLRs (non-HBLR S2s). An interesting issue arises as to the relations of non-HBLR S2s with other types of Seyfert galaxies and whether or not they can be included in the unified model. We assemble two subsamples consisting of 42 non-HBLR S2s and 44 narrow-line Seyfert 1 galaxies (NLS1s) with redshift z≤0.05 from published literatures to explore this issue. We compare black hole masses in the galactic centers, accretion rates, and infrared color ratio (f60µm/f25µm) as a potential indicator of the dusty torus orientation, [O III] λ5007, radio, and far-infrared luminosities. We find that non-HBLR S2s and NLS1s have (1) similar distributions of black hole masses [0.1-3x107 M☉] and Eddington ratios (LBol/LEdd∼1); (2) significantly different distributions of f60µm/f25µmratios; and (3) similar distributions of bulge magnitudes and luminosities of [O III], radio, and far-infrared emission. The similarities and differences can be understood naturally if they are intrinsically the same, but non-HBLR S2s are viewed at larger angles of the observer's sight than NLS1s. We thus suggest that non-HBLR S2s only have ``narrower'' broad-line regions and that they are the counterparts of NLS1s viewed at high inclination angles. The absence of the polarized emission line in non-HBLR S2s is caused by the less massive black holes and high accretion rate similar to NLS1s. The implications of the unification scheme of non-HBLR S2s and NLS1s are discussed.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Active - Galaxies: Seyfert - Polarization

Simbad objects: 95

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Number of rows : 95
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 Mrk 335 Sy1 00 06 19.5372339024 +20 12 10.617404076   14.19 13.85     ~ 1253 0
2 NGC 34 Sy2 00 11 06.612 -12 06 28.33   14.14 13.52     ~ 350 0
3 LEDA 87392 Sy1 00 39 15.8339634552 -51 17 01.481641692   15.77 15.28 15.66   ~ 130 0
4 ESO 12-21 Sy1 00 40 46.0771618200 -79 14 24.134025264   14.53 14.41 13.44   ~ 81 0
5 Mrk 359 Sy1 01 27 32.5217343720 +19 10 43.839069600   14.89 14.22     ~ 310 0
6 2MASS J01341690-4258262 Sy1 01 34 16.9072341600 -42 58 26.223391344   18.17 17.30 16.71   ~ 75 0
7 Mrk 573 Sy2 01 43 57.7777898304 +02 20 59.531401716   14.90 14.07     ~ 533 0
8 Mrk 1044 Sy1 02 30 05.5225590096 -08 59 53.207139372   14.74 14.29 13.981 13.585 ~ 292 0
9 M 77 Sy2 02 42 40.7091669408 -00 00 47.859690204 9.70 9.61 8.87 10.1 9.9 ~ 4602 2
10 NGC 1142 Sy2 02 55 12.2311509144 -00 11 00.807149472   15.42 14.41     ~ 330 1
11 Mrk 1066 Sy2 02 59 58.5970307633 +36 49 13.808979663   14.89 13.96     ~ 348 1
12 NGC 1241 Sy2 03 11 14.6195456232 -08 55 18.775959888 12.07 12.84 11.99 12.7 12.5 ~ 210 2
13 NGC 1320 Sy2 03 24 48.6886857672 -03 02 32.121533436   14.0 14.00     ~ 282 0
14 LEDA 3095641 Sy1 03 30 52.1821736640 +05 38 25.551906144   16.64 16.03     ~ 44 0
15 NGC 1358 Sy2 03 33 39.6807616872 -05 05 22.213915692   14.10 13.05 11.76   ~ 201 1
16 NGC 1386 Sy1 03 36 46.238 -35 59 57.39 12.42 12.16 11.23 10.76   ~ 520 1
17 LEDA 13422 Sy2 03 38 33.5520704184 -16 32 18.242798532   17.67 16.39 17.04   ~ 53 0
18 IRAS 03450+0055 Sy1 03 47 40.1887730832 +01 05 14.048016576   15.09 14.64     ~ 91 0
19 LEDA 15023 Sy2 04 23 40.7641669176 +04 08 01.820745852   16.8       ~ 92 0
20 2MASX J04250311-2521201 Sy2 04 25 03.1185964632 -25 21 20.383189416   18.5       ~ 28 0
21 FRL 303 Sy1 04 30 40.0329717936 -53 36 55.640614860 15.90 16.00 15.6 12.4   ~ 50 0
22 2MASX J04344151+4014219 Sy1 04 34 41.5362901632 +40 14 21.512204556     15.2     ~ 42 0
23 NGC 1667 Sy2 04 48 37.1804579280 -06 19 11.824427712   13.66 12.86 11.72   ~ 364 1
24 NGC 1685 Sy1 04 52 34.2987606264 -02 56 57.337701864   16.21 15.18     ~ 67 0
25 LEDA 165420 Sy1 05 00 20.7724870872 +09 16 55.683407928     16.58     ~ 32 0
26 LEDA 75257 Sy1 05 01 48.6160191134 -22 53 23.244856277   15.73 15.13     ~ 26 0
27 2MASX J05295547+4434388 Sy1 05 29 55.5107470680 +44 34 39.228129804           ~ 39 0
28 2MASS J05594739-5026519 Sy1 05 59 47.3916612936 -50 26 52.025952120   15.18 14.97     ~ 289 1
29 ESO 428-14 Sy2 07 16 31.2062162520 -29 19 28.882826364   13.28 13.52 11.61   ~ 263 4
30 Mrk 382 Sy1 07 55 25.2937526808 +39 11 09.913119252   16.45 16.11     ~ 199 0
31 2MASX J08301445-0252494 Sy2 08 30 14.4203624400 -02 52 49.847026224   15.5       ~ 36 0
32 Mrk 110 Sy1 09 25 12.8479065576 +52 17 10.386311208   16.82 16.41     ~ 604 0
33 Mrk 705 Sy1 09 26 03.2694421008 +12 44 03.732389268   15.15 14.60     ~ 326 0
34 Mrk 1239 Sy1 09 52 19.168 -01 36 44.10   14.99 14.39 11.2   ~ 322 0
35 NGC 3079 Sy2 10 01 57.8789863992 +55 40 47.449758324 11.57 11.54 10.86     ~ 1391 3
36 LEDA 142866 Sy1 10 17 18.2587283976 +29 14 34.097825904   17.09 16.79     ~ 44 0
37 Mrk 142 Sy1 10 25 31.2786898344 +51 40 34.867889004   16.33 16.12     ~ 290 0
38 NGC 3281 Sy2 10 31 52.086 -34 51 13.40   12.62 14.02 11.17   ~ 364 0
39 Z 212-25 Sy1 10 34 38.5982990352 +39 38 28.187042604   17.37 16.90     ~ 362 1
40 MCG+01-27-020 Sy2 10 36 35.7949609728 +05 54 38.079944820   14.7       ~ 42 0
41 NGC 3362 Sy2 10 44 51.7308466464 +06 35 48.665072040   17.58 16.96     ~ 159 0
42 NGC 3393 Sy2 10 48 23.4653152920 -25 09 43.487648784   13.10 13.95 11.67 12.2 ~ 424 1
43 UGC 6100 Sy2 11 01 33.9652636464 +45 39 13.917158280   14.1       ~ 121 0
44 IC 2746 Sy2 11 21 47.1179115936 +11 44 18.909849876   15.38 14.93     ~ 218 0
45 NGC 3660 Sy2 11 23 32.2781260536 -08 39 30.730097016   15.34 14.45     ~ 178 0
46 Mrk 739E Sy1 11 36 29.3 +21 35 45   14.86 14.08     ~ 54 0
47 Z 186-18 Sy1 11 39 13.9165085280 +33 55 51.148246188   17.38 16.98     ~ 92 0
48 Mrk 42 Sy1 11 53 41.7732361680 +46 12 42.174375120   16.24 15.45     ~ 209 0
49 NGC 3982 Sy1 11 56 28.1445516072 +55 07 30.859586652   12.20 11.70 11.18   ~ 550 1
50 NGC 4051 Sy1 12 03 09.6101337312 +44 31 52.682601288   11.08 12.92 9.94   ~ 2165 1
51 NGC 4117 Sy2 12 07 46.1195809200 +43 07 34.818483864   14.04       ~ 167 1
52 NGC 4253 Sy1 12 18 26.5163572920 +29 48 46.531535472   14.34 13.57     ~ 1040 1
53 M 88 Sy2 12 31 59.1525062448 +14 25 13.148971824   14.33 13.18     ~ 805 1
54 MCG+08-23-067 Sy1 12 36 51.1771780656 +45 39 04.167368784   17.64 17.16     ~ 82 0
55 IC 3599 Sy1 12 37 41.1939398400 +26 42 27.484266888   15.7 16.5     ~ 178 0
56 LEDA 42648 Sy1 12 42 10.6050409800 +33 17 02.662913436   16.45 15.65     ~ 116 0
57 NGC 4748 Sy1 12 52 12.4650934680 -13 24 53.262019944   14.73 14.03 12.82   ~ 258 0
58 NGC 4941 Sy2 13 04 13.1036380320 -05 33 05.752803672   13.18 12.23 10.74   ~ 369 0
59 NAME Centaurus A Sy2 13 25 27.61521044 -43 01 08.8050291   8.18 6.84 6.66   ~ 4486 3
60 NGC 5135 Sy2 13 25 44.059 -29 50 01.24   12.58 13.35 11.53 12.2 ~ 474 1
61 M 51 Sy2 13 29 52.698 +47 11 42.93   9.26 8.36 8.40   ~ 4330 4
62 NGC 5256 PaG 13 38 17.81 +48 16 41.2   14.1 13.42     ~ 430 1
63 NGC 5283 Sy2 13 41 05.7499712616 +67 40 19.967186280   14.97 14.05     ~ 257 0
64 LEDA 84044 Sy1 13 41 12.8835794640 -14 38 40.247801448   15.02 14.63 11.5   ~ 86 0
65 2MASX J13421004+5642106 Sy1 13 42 10.1160058272 +56 42 10.380467520   17.74 17.39     ~ 29 0
66 Mrk 1361 Sy2 13 47 04.3567576992 +11 06 22.663156500   15.5       ~ 65 0
67 ESO 325-22 Sy2 13 48 15.205 -42 10 19.79   15.36 16.17 14.02   ~ 39 0
68 NGC 5347 Sy2 13 53 17.7984934128 +33 29 27.011618196   13.46 12.70     ~ 353 1
69 NGC 5506 Sy2 14 13 14.8761010056 -03 12 27.556909272   15.25 14.38     ~ 1091 0
70 Mrk 684 Sy1 14 31 04.7823008520 +28 17 14.127735336   15.36 14.68     ~ 107 0
71 NGC 5643 Sy2 14 32 40.778 -44 10 28.60   11.03 13.60 9.92 10.6 ~ 572 0
72 NGC 5695 Sy2 14 37 22.1349838776 +36 34 04.201272336   14.55 13.60     ~ 201 0
73 NGC 5728 Sy2 14 42 23.8918506576 -17 15 11.240783784   14.34 13.40     ~ 595 0
74 IRAS 15091-2107 Sy1 15 11 59.8048834368 -21 19 01.536726288   15.73 14.83 11.6   ~ 146 0
75 NGC 5929 Sy1 15 26 06.1564333536 +41 40 14.384294616   13.0 14.00     ~ 440 0
76 NGC 5930 GiP 15 26 07.9964334517 +41 40 33.691556640   13.0       ~ 431 0
77 Mrk 486 Sy1 15 36 38.4011947776 +54 33 33.215039244   15.21 14.78     ~ 275 0
78 Mrk 493 Sy1 15 59 09.6231720696 +35 01 47.561352852   15.69 15.06     ~ 310 0
79 2MASX J16180940+3619580 Sy1 16 18 09.3737457456 +36 19 57.871902108   17.63 17.09     ~ 42 0
80 2MASX J16195129+4058472 Sy1 16 19 51.3112866864 +40 58 47.331025212   17.81 17.34     ~ 64 0
81 NGC 6300 Sy2 17 16 59.5418094960 -62 49 13.946588832   10.88 13.08 9.44 10.2 ~ 431 0
82 LEDA 2447627 Sy1 18 32 49.6958962344 +53 40 22.083581532   15.9       ~ 20 0
83 ICRF J200755.1-443444 Sy1 20 07 55.1842447944 -44 34 44.274118260   19.3 19.3 18   ~ 172 1
84 NGC 6890 Sy2 20 18 18.1057797216 -44 48 24.750633168   13.06 14.02 11.57   ~ 164 0
85 NGC 7172 Sy2 22 02 01.897 -31 52 11.60   12.72 13.61 11.15 25.10 ~ 529 1
86 NGC 7314 Sy2 22 35 46.1985355872 -26 03 01.564993476   11.62 13.11 10.61 11.4 ~ 565 0
87 UGC 12163 Sy1 22 42 39.3363009144 +29 43 31.302092640   14.86 14.16     ~ 697 1
88 LEDA 3096712 Sy1 22 57 39.0250746096 -36 56 06.528333048   16.59 16.0 15.64   ~ 75 0
89 LEDA 70195 Sy1 22 59 32.9151381120 +24 55 05.921986476   16.8       ~ 75 0
90 2dFGRS TGS538Z275 Sy1 23 04 37.4064839376 -35 01 13.606851468   16.755 16.6 15.558   ~ 16 0
91 ESO 148-2 Sy2 23 15 46.772 -59 03 15.94   14.94 14.73 13.95   ~ 265 1
92 IC 5298 Sy2 23 16 00.6756811155 +25 33 24.081139422   15.0       ~ 193 0
93 NGC 7582 Sy2 23 18 23.60 -42 22 13.3 11.62 10.92 10.62     ~ 906 2
94 NGC 7672 Sy2 23 27 31.4358992112 +12 23 06.832583628   15.05 14.21     ~ 90 0
95 Mrk 1667 G ~ ~           ~ 1 0

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