2014A&A...570A..72K


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.03CEST21:47:33

2014A&A...570A..72K - Astronomy and Astrophysics, volume 570A, 72-72 (2014/10-1)

The dichotomy of Seyfert 2 galaxies: intrinsic differences and evolution.

KOULOURIDIS E.

Abstract (from CDS):

We present a study of the local environment (≤200h–1kpc) of 31 hidden broad line region (HBLR) and 43 non-HBLR Seyfert 2 (Sy2) galaxies in the nearby universe (z≤0.04). To compare our findings, we constructed two control samples that match the redshift and the morphological type distribution of the HBLR and non-HBLR samples. We used the NASA Extragalactic Database (NED) to find all neighboring galaxies within a projected radius of 200h–1kpc around each galaxy, and a radial velocity difference δu≤500km/s. Using the digitized Schmidt survey plates (DSS) and/or the Sloan Digital Sky Survey (SDSS), when available, we confirmed that our sample of Seyfert companions is complete. We find that, within a projected radius of at least 150h–1kpc around each Seyfert, the fraction of non-HBLR Sy2 galaxies with a close companion is significantly higher than that of their control sample, at the 96% confidence level. Interestingly, the difference is due to the high frequency of mergers in the non-HBLR sample, seven versus only one in the control sample, while they also present a high number of hosts with signs of peculiar morphology. In sharp contrast, the HBLR sample is consistent with its control sample. Furthermore, the number of the HBLR host galaxies that present peculiar morphology, which probably implies some level of interactions or merging in the past, is the lowest in all four galaxy samples. Given that the HBLR Sy2 galaxies are essentially Seyfert 1 (Sy1) with their broad line region (BLR) hidden because of the obscuring torus, while the non-HBLR Sy2 galaxies probably also include true Sy2s that lack the BLR as well as heavily obscured objects that prevent even the indirect detection of the BLR, our results are discussed within the context of an evolutionary sequence of activity triggered by close galaxy interactions and merging. We argue that the non-HBLR Sy2 galaxies may represent different stages of this sequence, possibly the beginning and the end of the nuclear activity.

Abstract Copyright:

Journal keyword(s): galaxies: active - galaxies: nuclei - galaxies: Seyfert - galaxies: evolution - galaxies: interactions

Simbad objects: 150

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Number of rows : 150

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 Mrk 334 Sy1 00 03 09.6101278378 +21 57 36.952809317   15.30 14.62     ~ 185 0
2 NGC 34 Sy2 00 11 06.612 -12 06 28.33   14.14 13.52     ~ 306 0
3 ESO 540-1 Sy1 00 34 13.637 -21 26 19.04   13.66   12.36 13.5 ~ 94 0
4 NGC 262 Sy2 00 48 47.1414900 +31 57 25.083955 14.04 13.90 13.06 8.53   ~ 672 3
5 NGC 424 Sy2 01 11 27.6374462713 -38 05 00.404099901   13.76 14.12 12.38 12.8 ~ 273 0
6 NGC 429 GiG 01 12 57.454 -00 20 41.69   14.4       ~ 45 0
7 NGC 527 GiG 01 23 58.122 -35 06 54.52   14.07   12.50   ~ 35 1
8 NGC 513 Sy2 01 24 26.8055185286 +33 47 58.225286599   13.4 13.40     ~ 157 2
9 NGC 591 Sy2 01 33 31.2334491603 +35 40 05.621946090   14.71 13.90     ~ 184 2
10 NGC 590 GiP 01 33 40.8886500119 +44 55 43.911788921   14.2       ~ 19 0
11 NGC 634 GiG 01 38 18.679 +35 21 53.47   14.0       ~ 52 0
12 MCG-01-05-031 Sy2 01 45 25.4697307890 -03 49 37.692407895   14 14 12.91   ~ 42 0
13 Mrk 575 GiG 01 48 33.0997962145 +12 36 49.806839861   14.0       ~ 58 0
14 NGC 691 GiG 01 50 41.7086928919 +21 45 35.895315871   13.5       ~ 125 0
15 Mrk 582 GiP 01 58 06.681 +03 05 15.29   14.0       ~ 38 0
16 NGC 776 GiG 01 59 54.5184600919 +23 38 39.437944570   13.4       ~ 98 0
17 NGC 788 Sy2 02 01 06.4622976350 -06 48 57.146217363   13.71 12.76 11.79   ~ 211 0
18 NGC 783 GiG 02 01 06.6091614004 +31 52 56.752906147   12.84       ~ 66 1
19 NGC 897 G 02 21 06.3844280452 -33 43 14.372507057   13.07   11.63   ~ 23 0
20 Mrk 1039 GiP 02 27 32.769 -10 09 56.33   14.56   13.5 14.0 ~ 78 0
21 M 77 GiP 02 42 40.771 -00 00 47.84 9.70 9.61 8.87 10.1 9.9 ~ 4089 2
22 NGC 1143 IG 02 55 09.715 -00 10 40.27   13.2       ~ 134 1
23 NGC 1142 Sy2 02 55 12.229 -00 11 00.77   15.42 14.41     ~ 292 1
24 Mrk 1066 Sy2 02 59 58.5970307633 +36 49 13.808979663   14.89 13.96     ~ 318 1
25 MCG-02-08-039 Sy2 03 00 30.6257296009 -11 24 57.016279252   14 14.3 13.45   ~ 96 0
26 NGC 1168 GiP 03 00 47.0093072359 +11 46 20.062666348   15.4       ~ 17 0
27 NGC 1160 GiP 03 01 13.259 +44 57 19.52   13.0       ~ 49 0
28 NGC 1244 GiG 03 06 31.1225794759 -66 46 32.433875979   13.91   12.36   ~ 31 0
29 NGC 1241 Sy2 03 11 14.636 -08 55 19.70 12.07 12.84 11.99 12.7 12.5 ~ 192 2
30 NGC 1320 Sy2 03 24 48.6903707574 -03 02 32.121207374   14.0 14.00     ~ 233 0
31 NGC 1341 EmG 03 27 58.3978450109 -37 09 00.300836646   12.86   11.82   ~ 65 0
32 NGC 1358 Sy2 03 33 39.6845285938 -05 05 22.226986857   14.10 13.05 11.76   ~ 183 1
33 NGC 1386 GiP 03 36 46.238 -35 59 57.39 12.42 12.16 11.23 10.76   ~ 458 1
34 NGC 1422 GiP 03 41 31.064 -21 40 53.38   13.99   12.93   ~ 66 0
35 NGC 1463 G 03 46 15.4198409338 -59 48 36.327291842   14.15   12.85 13.5 ~ 19 0
36 NGC 1459 G 03 46 57.948 -25 31 18.30   13.62   12.54 13.3 ~ 43 0
37 NGC 1486 G 03 56 18.725 -21 49 15.87   15.21   13.95   ~ 14 0
38 NGC 1511 GiP 03 59 36.98373 -67 38 03.3430   11.97   10.74 11.1 ~ 111 0
39 NGC 1667 Sy2 04 48 37.205 -06 19 11.47   13.66 12.86 11.72   ~ 335 1
40 NGC 1685 Sy1 04 52 34.2994150716 -02 56 57.334186946   16.21 15.18     ~ 61 0
41 NGC 1792 EmG 05 05 14.454 -37 58 50.70   10.68 10.18 9.53 10.4 ~ 197 1
42 NGC 1964 GiG 05 33 21.7894546695 -21 56 44.156746901 11.79 11.45 10.81 10.42 11.2 ~ 124 1
43 NGC 2110 Sy2 05 52 11.3760694860 -07 27 22.489931610   14.77 13.51 11.86   ~ 582 1
44 Mrk 3 Sy2 06 15 36.458 +71 02 15.24 14.21 14.03 12.97     ~ 842 3
45 NGC 2211 GiG 06 18 30.352 -18 32 13.96   13.70   12.19   ~ 18 0
46 NGC 2221 IG 06 20 15.718 -57 34 42.33   13.86   13.04   ~ 24 0
47 NGC 2273 Sy2 06 50 08.6724567505 +60 50 44.879789544   14.50 13.54     ~ 458 3
48 ESO 428-14 Sy2 07 16 31.2067043371 -29 19 28.898984517   13.28 13.52 11.61   ~ 215 4
49 NGC 2375 G 07 27 09.514 +33 49 54.45   14.7       ~ 20 0
50 Mrk 78 Sy2 07 42 41.7030525112 +65 10 37.433697338   15.57 14.58     ~ 329 2
51 Mrk 1210 Sy2 08 04 05.8618852704 +05 06 49.810938210   14.55 13.7     ~ 259 2
52 NGC 2785 GiP 09 15 15.326 +40 55 03.53   14.9       ~ 69 1
53 NGC 2992 Sy2 09 45 42.045 -14 19 34.90 13.54 13.14 12.18 12.6 12.2 ~ 785 3
54 ESO 434-40 Sy2 09 47 40.1345889569 -30 56 55.959492708   14.10 13.69 12.44   ~ 486 0
55 NGC 3038 EmG 09 51 15.4615250115 -32 45 09.244118167   12.50 11.60 12.5 11.9 ~ 61 0
56 NGC 3081 Sy2 09 59 29.5436045645 -22 49 34.748021329   13.06 13.55 11.67 12.1 ~ 411 0
57 NGC 3092 GiG 10 00 47.4348413892 -03 00 44.638829830   14.5       ~ 25 0
58 NGC 3079 Sy2 10 01 57.80342 +55 40 47.2428 11.57 11.54 10.86     ~ 1247 3
59 NGC 3066 GiP 10 02 10.9014314395 +72 07 30.850746153   12.8       ~ 71 0
60 NGC 3179 G 10 17 57.210 +41 06 51.05   14.2       ~ 28 0
61 NGC 3182 Sy2 10 19 33.0235828760 +58 12 20.583273094   13.0       ~ 93 0
62 NGC 3188 rG 10 19 42.8148398020 +57 25 24.353375798   14.7       ~ 43 0
63 NGC 3248 GiG 10 27 45.4388330114 +22 50 49.819461432   13.9       ~ 67 0
64 NGC 3281 Sy2 10 31 52.086 -34 51 13.40   12.62 14.02 11.17   ~ 313 0
65 NAME Great Attractor SCG 10 32 -46.0           ~ 461 0
66 NGC 3285 GiG 10 33 35.823 -27 27 16.02   12.96 12.08 11.47   ~ 54 0
67 NGC 3301 GiG 10 36 56.030 +21 52 55.80   12.2       ~ 126 0
68 NGC 3347 GiG 10 42 46.5016610330 -36 21 09.060440710   12.18 11.35 10.90   ~ 61 0
69 NGC 3362 Sy2 10 44 51.7309570891 +06 35 48.664200380   17.58 16.96     ~ 145 0
70 NGC 3393 Sy2 10 48 23.467 -25 09 43.30   13.10 13.95 11.67 12.2 ~ 346 3
71 NGC 3381 GiG 10 48 24.7993628769 +34 42 41.084421593   12.8       ~ 130 0
72 NGC 3462 GiG 10 55 21.083 +07 41 48.25   13.4       ~ 36 0
73 NGC 3465 GiG 10 59 31.256 +75 11 28.43   14.6       ~ 25 0
74 UGC 6100 Sy2 11 01 33.9655833698 +45 39 13.940147885   14.1       ~ 106 0
75 IC 673 EmG 11 09 25.279 -00 05 51.48   14.06   13.646 14.1 ~ 47 1
76 NGC 3600 GiG 11 15 51.980 +41 35 28.96   12.6       ~ 95 0
77 NGC 3660 Sy2 11 23 32.2791583222 -08 39 30.755681618   15.34 14.45     ~ 163 0
78 NGC 3725 LIN 11 33 40.5333190247 +61 53 16.863926115   13.6       ~ 66 0
79 IC 2943 GiC 11 36 42.3061437813 +54 50 45.590186356   15.0       ~ 29 0
80 NGC 3982 Sy1 11 56 28.169 +55 07 31.30   12.20 11.70 11.18   ~ 487 1
81 NGC 4082 LIN 12 05 11.4541101409 +10 40 14.392108687   15.5       ~ 18 0
82 NGC 4117 GiP 12 07 46.1189912728 +43 07 34.849492207   14.04       ~ 145 1
83 NGC 4217 GiG 12 15 50.900 +47 05 30.44   12.4       ~ 249 2
84 NGC 4369 GiG 12 24 36.204 +39 22 58.73   12.3       ~ 170 1
85 NGC 4388 Sy2 12 25 46.820 +12 39 43.45 11.91 11.76 11.02     ~ 1183 2
86 NGC 4488 GiG 12 30 51.3731630479 +08 21 35.991744073   13.8       ~ 85 0
87 M 88 Sy2 12 31 59.216 +14 25 13.48   14.33 13.18     ~ 727 1
88 NGC 4507 Sy2 12 35 36.6328010225 -39 54 33.661858548   12.95 13.54 11.70 12.4 ~ 437 0
89 NGC 4573 GiG 12 37 43.7693545977 -43 37 15.949948093   13.48   12.09   ~ 23 0
90 NGC 4601 GiG 12 40 46.7412260590 -40 53 34.933699218   14.58 14.20 12.97   ~ 25 0
91 IC 3639 Sy2 12 40 52.8357581136 -36 45 21.046225445   13.01 13.50 11.87 12.7 ~ 227 1
92 NGC 4608 GiP 12 41 13.2831566199 +10 09 20.342721675   12.6       ~ 176 0
93 NGC 4664 GiG 12 45 05.9996914142 +03 03 20.762799716   11.50 10.50     ~ 155 1
94 NGC 4679 EmG 12 47 30.249 -39 34 15.03   13.32 11.90 12.20 12.8 ~ 69 0
95 NGC 4800 GiG 12 54 37.7820832483 +46 31 52.281519420   12.0       ~ 131 0
96 NGC 4941 Sy2 13 04 13.1053484000 -05 33 05.754194531   13.18 12.23 10.74   ~ 303 0
97 NGC 5014 GiG 13 11 31.198 +36 16 55.63   13.5       ~ 127 0
98 MCG-03-34-064 Sy2 13 22 24.485 -16 43 42.09   14   13.16   ~ 259 2
99 NGC 5134 EmG 13 25 18.5249415866 -21 08 03.042646173   12.11   10.77 11.3 ~ 85 0
100 NAME Centaurus A Sy2 13 25 27.61509104 -43 01 08.8056025   8.18 6.84 6.66   ~ 3995 3
101 NGC 5135 Sy2 13 25 44.059 -29 50 01.24   12.58 13.35 11.53 12.2 ~ 423 1
102 M 51 GiP 13 29 52.698 +47 11 42.93   9.26 8.36 8.40   ~ 3781 4
103 NGC 5233 LIN 13 35 13.334 +34 40 38.37   14.8       ~ 25 0
104 NGC 5252 Sy2 13 38 15.8711551761 +04 32 33.525903711   15.21 14.21     ~ 419 0
105 NGC 5256 PaG 13 38 17.8 +48 16 41   14.1 13.42     ~ 396 2
106 NGC 5283 Sy2 13 41 05.7487638040 +67 40 19.995794737   14.97 14.05     ~ 226 0
107 Mrk 1361 Sy2 13 47 04.3557226298 +11 06 22.671644597   15.5       ~ 52 0
108 NGC 5347 Sy2 13 53 17.7993659226 +33 29 26.989049245   13.46 12.70     ~ 310 1
109 NGC 5352 rG 13 53 38.474 +36 08 03.18   14.4       ~ 32 1
110 NGC 5339 GiG 13 54 00.2662830562 -07 55 50.388134358   16.5       ~ 63 0
111 NGC 5383 GiG 13 57 04.975 +41 50 46.60   12.5   10.95   ~ 310 0
112 NGC 5506 AGN 14 13 14.901 -03 12 27.22   15.25 14.38     ~ 990 0
113 NGC 5607 G 14 19 26.693 +71 35 17.75   13.9       ~ 49 0
114 Mrk 677 G 14 19 36.0 +36 08 39   17.0       ~ 4 1
115 NGC 5643 Sy2 14 32 40.778 -44 10 28.60   11.03 13.60 9.92 10.6 ~ 450 0
116 NGC 5695 Sy2 14 37 22.1345295094 +36 34 04.194112119   14.55 13.60     ~ 191 0
117 Mrk 477 Sy2 14 40 38.098 +53 30 16.24   16.05 15.03     ~ 282 1
118 NGC 5728 Sy2 14 42 23.928 -17 15 11.41   14.34 13.40     ~ 496 0
119 NGC 5743 EmG 14 45 10.983 -20 54 48.81   13.85   12.54   ~ 37 1
120 NGC 5829 IG 15 02 42.005 +23 20 01.03   14.14   12.93   ~ 80 0
121 NGC 5929 GiP 15 26 06.158 +41 40 14.40   13.0 14.00     ~ 414 0
122 NGC 5930 GiP 15 26 07.9964334517 +41 40 33.691556640   13.0       ~ 411 0
123 NGC 5995 Sy2 15 48 24.9486951203 -13 45 27.258674402   14.66 13.69 13.17   ~ 128 0
124 NGC 6030 GiG 16 01 51.379 +17 57 26.64   14.5       ~ 33 0
125 NGC 6300 Sy2 17 16 59.473 -62 49 13.98   10.88 13.08 9.44 10.2 ~ 358 0
126 NGC 6403 GiG 17 43 23.569 -61 40 55.54   14.33   13.24   ~ 16 0
127 NGC 6552 Sy2 18 00 07.2507502885 +66 36 54.347573772   14.6       ~ 133 2
128 NGC 6660 GiG 18 34 36.665 +22 54 34.77   14.1       ~ 40 0
129 NGC 6890 Sy2 20 18 18.1048952350 -44 48 24.732671687   13.06 14.02 11.57   ~ 152 0
130 IC 5063 Sy2 20 52 02.329 -57 04 07.60   12.92 13.60 11.30   ~ 543 1
131 NGC 6990 G 20 59 56.9018854708 -55 33 42.390452822   13.99   12.99   ~ 19 0
132 NGC 7130 AGN 21 48 19.490 -34 57 04.73   12.86 13.87 11.57   ~ 381 0
133 NGC 7172 Sy2 22 02 01.897 -31 52 11.60   12.72 13.61 11.15   ~ 465 1
134 NGC 7212 Sy2 22 07 01.9866638486 +10 14 00.849716443   15.1       ~ 159 1
135 NGC 7272 G 22 24 31.7283872247 +16 35 17.464281971   15.0       ~ 17 0
136 NGC 7312 GiC 22 34 34.783 +05 49 02.53   14.5       ~ 22 0
137 NGC 7314 Sy1 22 35 46.1969940596 -26 03 01.574026329   11.62 13.11 10.61 11.4 ~ 504 0
138 MCG-03-58-007 Sy2 22 49 37.1463421968 -19 16 26.371480013   15.62 14.79     ~ 81 0
139 NGC 7415 G 22 54 53.628 +20 15 41.46   15.0       ~ 9 0
140 NGC 7496 AGN 23 09 47.2883721352 -43 25 40.268143410   11.92 13.90 10.95 11.5 ~ 224 1
141 IC 5298 Sy2 23 16 00.6756811155 +25 33 24.081139422   15.0       ~ 174 0
142 NGC 7582 GiP 23 18 23.621 -42 22 14.06 11.62 10.92 10.62     ~ 796 2
143 NGC 7600 G 23 18 53.8404957205 -07 34 49.704726237   13   11.68   ~ 65 0
144 NGC 7590 GiP 23 18 54.836 -42 14 20.64   12.12 13.76 11.06 11.8 ~ 258 1
145 NGC 7672 Sy2 23 27 31.435 +12 23 06.53   15.05 14.21     ~ 82 0
146 NGC 7674 Sy2 23 27 56.6974755223 +08 46 44.238278540 13.84 13.92 13.23 12.64   ~ 635 4
147 NGC 7683 GiG 23 29 03.809 +11 26 42.37   14.60       ~ 45 0
148 NGC 7682 Sy2 23 29 03.896 +03 32 00.00   14.3       ~ 203 0
149 NGC 7773 G 23 52 09.873 +31 16 35.68   14.5       ~ 21 0
150 NGC 7779 GiG 23 53 26.7797437240 +07 52 32.370758931   13.6       ~ 37 0

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2020.07.03-21:47:33

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