2002A&A...394..791C

Query : 2002A&A...394..791C

2002A&A...394..791C - Astronomy and Astrophysics, volume 394, 791-800 (2002/11-2)

Understanding the nature of FR II optical nuclei: A new diagnostic plane for radio galaxies.

CHIABERGE M., CAPETTI A. and CELOTTI A.

Abstract (from CDS):

We extend our study of the nuclei of 3CR FR II radio galaxies through HST optical images up to z=0.3. In the majority of them an unresolved nucleus (central compact core, CCC) is found. We analyze their position in the plane formed by the radio and optical nuclear luminosities in relation to their optical spectral properties. The broad-lined objects (BLO) have the brightest nuclei: they are present only at optical luminosities νLν>4x1042erg/s which we suggest might represent a threshold in the radiative efficiency combined with a small range of black hole masses. About 40% of the high and low excitation galaxies (HEG and LEG) show CCC which resemble those previously detected in FR I galaxies, in apparent contrast to the unification model. The equivalent width of the [OIII] emission line (with respect to the nuclear luminosity) reveals the nature of these nuclei, indicating that the nuclei of HEG are obscured to our line of sight and only scattered radiation is observed. This implies that the population of FR II is composed of objects with different nuclear properties, and only a fraction of them can be unified with quasars.

Abstract Copyright: ∼

Journal keyword(s): galaxies: active - galaxies: nuclei - galaxies: jets - quasars: general

Simbad objects: 76

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Number of rows : 76
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 3C 15 BiC 00 37 04.1107321824 -01 09 08.407668996   15.34       ~ 223 1
2 ICRF J003820.5-020740 Sy1 00 38 20.52934376 -02 07 40.5469964   19.04 18.02 17.6   ~ 236 1
3 3C 18.0 Sy2 00 40 50.5382453904 +10 03 26.625575952   18.5       ~ 152 2
4 2C 94 Sy2 01 08 52.8701830824 +13 20 14.262799812   15.19       ~ 477 2
5 3C 33.1 Sy1 01 09 42.2 +73 11 53   19.5       ~ 144 1
6 3C 35 QSO 01 12 02.2561727808 +49 28 34.990660524     15.6     ~ 143 0
7 NGC 547 AGN 01 26 00.6208982520 -01 20 42.432452268   13.16 13.34     ~ 349 4
8 3C 63 BLL 02 20 54.3166497648 -01 56 50.431204212           ~ 146 0
9 3C 61.1 Sy2 02 22 42.6 +86 18 46     19.0     ~ 199 1
10 UGC 1841 Sy1 02 23 11.41124925 +42 59 31.3853324   15.71 14.81     ~ 561 2
11 3C 79.0 Sy2 03 10 00.0936589848 +17 05 58.599361932   19.54 18.75     ~ 257 3
12 3C 84 Sy2 03 19 48.1599902040 +41 30 42.108850836   13.10 12.48 11.09   ~ 4006 3
13 3C 88 QSO 03 27 54.19499480 +02 33 41.9824262   13.95       ~ 222 1
14 2C 349 Sy2 03 58 54.4370049840 +10 26 02.791855968   16.68 15.41     ~ 342 2
15 3C 105.0 Sy2 04 07 16.4671273272 +03 42 25.813809432   18.5       ~ 229 1
16 3C 111 Sy1 04 18 21.2772425736 +38 01 35.801359968   19.75 18.05     ~ 950 1
17 NAME Per B AGN 04 37 04.37535450 +29 40 13.8179631   21.7       ~ 514 2
18 3C 132 rG 04 56 42.922 +22 49 23.06   18.5       ~ 153 1
19 ICRF J050258.4+251625 AGN 05 02 58.47476282 +25 16 25.2757175   20       ~ 178 1
20 2MASX J05140834+0056316 Sy2 05 14 08.3684211120 +00 56 32.518880340   18.24 17.00     ~ 137 2
21 2MASX J05160313+2458254 AGN 05 16 03.133 +24 58 25.47   17       ~ 86 1
22 2C 524 Sy2 06 09 32.701768 +48 04 17.04207   21.198 18.00 18.767   ~ 177 1
23 3C 165 rG 06 43 07.4 +23 19 03   19.5       ~ 76 1
24 ICRF J064524.0+212151 AGN 06 45 24.09954730 +21 21 51.2008841   19.5       ~ 134 1
25 3C 171.0 Sy2 06 55 14.8 +54 09 00   19.94 19.08     ~ 256 0
26 3C 173.1 rG 07 09 18.2015614632 +74 49 31.815420780   19.982 18.9 17.540   ~ 134 1
27 3C 180 AGN 07 27 04.7 -02 04 37   19       ~ 81 1
28 3C 184.1 Sy2 07 42 56.3 +80 26 36     17.0     ~ 184 1
29 2XMM J080535.0+240951 Sy2 08 05 35.0054956728 +24 09 50.330022516   15.46       ~ 327 1
30 3C 197.1 BLL 08 21 33.6000545232 +47 02 37.303572516   18.08 17.33     ~ 138 1
31 3C 198.0 AGN 08 22 31.9510001544 +05 57 06.787089972   18.04 17.33     ~ 130 0
32 3C 219 Sy1 09 21 08.6258123424 +45 38 57.358202856   19.56 18.69     ~ 409 2
33 4C 36.16 Rad 09 39 52.5 +35 54 13           ~ 271 0
34 3C 223.0 Sy2 09 39 52.7594046216 +35 53 58.922078496   19.51 18.60     ~ 270 1
35 7C 093818.10+395820.00 Sy2 09 41 24.0268234920 +39 44 41.809159068   16.36 16.4     ~ 189 2
36 ATO J146.9381+07.4223 Sy1 09 47 45.1433922288 +07 25 20.595729756   17.37 16.95     ~ 375 0
37 3C 234.0 Sy1 10 01 49.5227371368 +28 47 08.943487440   18.21 17.27     ~ 431 1
38 ICRF J100601.7+345410 Sy2 10 06 01.75023017 +34 54 10.4016113   15.97       ~ 450 2
39 NGC 4395 Sy2 12 25 48.8633109888 +33 32 48.700168152 10.84 10.54 10.11 9.98   ~ 1177 1
40 M 87 AGN 12 30 49.42338414 +12 23 28.0436859 10.16 9.59 8.63   7.49 ~ 7189 3
41 M 58 Sy2 12 37 43.5 +11 49 06 10.80 10.48 9.66     ~ 1078 2
42 2MASX J13110466+2728070 Sy2 13 11 04.6615315248 +27 28 07.229535420   18.93 18.00     ~ 197 1
43 6C 131905+425044 Sy2 13 21 17.813 +42 35 15.38   16.86 16.23     ~ 276 1
44 ICRF J133253.2+020045 Sy1 13 32 53.27053616 +02 00 45.6991690   19.08 18.49     ~ 211 1
45 3C 300 SyG 14 22 59.85648 +19 35 36.7152   19.66 18.73     ~ 198 2
46 ICRF J144302.7+520137 Sy1 14 43 02.76069031 +52 01 37.2985156   18.96 18.29     ~ 300 3
47 NGC 5920 LIN 15 21 51.870 +07 42 31.97   15.5       ~ 131 1
48 3C 319.0 rG 15 24 05.5 +54 28 15   18.5       ~ 152 1
49 3C 321 Sy2 15 31 43.473 +24 04 18.93   16.0   15.40   ~ 326 1
50 ICRF J154743.5+205216 Sy1 15 47 43.5376371336 +20 52 16.612810320   16.80 16.69 15.70   ~ 502 0
51 2MASX J15520913+2005477 G 15 52 09.1120432368 +20 05 48.211598760   17.87 17.08     ~ 139 1
52 2MASX J15520920+2005237 rG 15 52 09.1938375312 +20 05 23.180614152   17.87 17.08     ~ 126 2
53 3C 326 Rad 15 52 24.9 +20 05 57   17.87 17.08     ~ 219 3
54 3C 327 Sy2 16 02 28.1 +01 57 56   17.70 16.31     ~ 239 0
55 3C 332.0 Sy1 16 17 42.5380089648 +32 22 34.372277976   18.25 17.45     ~ 253 1
56 3C 346.0 BLL 16 43 48.605 +17 15 49.43   17.2       ~ 264 0
57 3C 349 rG 16 59 32.1 +47 02 16   19 19.0     ~ 158 1
58 2C 1473 AGN 17 20 28.1680537512 -00 58 46.582453920   15.36       ~ 324 1
59 4C 31.47 rG 17 28 20.1089243496 +31 46 02.604685584   15.5       ~ 129 1
60 3C 379.1 QSO 18 24 32.9768304384 +74 20 59.004997872   18.0 18.0     ~ 86 1
61 2MASX J18334627+4727027 Sy1 18 33 46.2946146576 +47 27 02.566037088   18.64 17.24     ~ 201 1
62 ICRF J183503.3+324146 Sy1 18 35 03.3896172576 +32 41 46.855964616   16.50 15.39 10.50   ~ 652 1
63 ICRF J184208.9+794617 Sy1 18 42 08.9904975672 +79 46 17.127835104   16.06 15.38     ~ 1316 0
64 3C 388.0 SyG 18 44 02.3840387736 +45 33 29.628672300   16.91 15.56     ~ 325 1
65 3C 401 SyG 19 40 25.1 +60 41 35   19.1       ~ 201 1
66 MCG+08-36-003 LSB 19 41 45.9805683216 +50 35 45.372755328   14.9 14.0     ~ 112 1
67 3C 403.0 Sy2 19 52 15.7996999344 +02 30 24.238200816   15.42 16.5     ~ 338 1
68 NAME Cyg A Sy2 19 59 28.35656837 +40 44 02.0972325   16.22 15.10     ~ 2366 2
69 3C 430 QSO 21 18 19.0965352800 +60 48 07.351475472   15       ~ 111 1
70 3C 436 AGN 21 44 11.7308886192 +28 10 18.750481356   18.5       ~ 187 1
71 LEDA 68751 Sy1 22 23 49.5400938871 -02 06 12.859452336   16.93 15.77 16.02   ~ 484 2
72 UGC 12064 AGN 22 31 20.5885689288 +39 21 29.593072404   14.6       ~ 437 1
73 3C 452 Sy2 22 45 48.7616172744 +39 41 15.906782184   17.60 16.56     ~ 376 1
74 3C 456 AGN 23 12 28.0711694296 +09 19 26.469101543   18.54       ~ 110 2
75 3C 458 rG 23 12 54.5 +05 16 24   20       ~ 93 1
76 3C 460 AGN 23 21 28.5 +23 46 48   20.315   18.468   ~ 88 2

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