2010ApJ...725.2426B

Query : 2010ApJ...725.2426B

2010ApJ...725.2426B - Astrophys. J., 725, 2426-2443 (2010/December-3)

The 1.6 µm near-infrared nuclei of 3C radio galaxies: jets, thermal emission, or scattered light?

BALDI R.D., CHIABERGE M., CAPETTI A., SPARKS W., MACCHETTO F.D., O'DEA C.P., AXON D.J., BAUM S.A. and QUILLEN A.C.

Abstract (from CDS):

Using HST NICMOS 2 observations we have measured 1.6 µm near-infrared nuclear luminosities of 100 3CR radio galaxies with z < 0.3, by modeling and subtracting the extended emission from the host galaxy. We performed a multiwavelength statistical analysis (including optical and radio data) of the properties of the nuclei following classification of the objects into FR I and FR II, and low-ionization galaxies (LIGs), high-ionization galaxies (HIGs), and broad-line objects (BLOs) using the radio morphology and optical spectra, respectively. The correlations among near-infrared, optical, and radio nuclear luminosity support the idea that the near-infrared nuclear emission of FR Is has a non-thermal origin. Despite the difference in radio morphology, the multiwavelength properties of FR II LIG nuclei are statistically indistinguishable from those of FR Is, an indication of a common structure of the central engine. All BLOs show an unresolved near-infrared nucleus and a large near-infrared excess with respect to FR II LIGs and FR Is of equal radio core luminosity. This requires the presence of an additional (and dominant) component other than the non-thermal light. Considering the shape of their spectral energy distribution, we ascribe the origin of their near-infrared light to hot circumnuclear dust. A near-infrared excess is also found in HIGs, but their nuclei are substantially fainter than those of BLO. This result indicates that substantial obscuration along the line of sight to the nuclei is still present at 1.6 µm. Nonetheless, HIG nuclei cannot simply be explained in terms of dust obscuration: a significant contribution from light reflected in a circumnuclear scattering region is needed to account for their multiwavelength properties.

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Journal keyword(s): galaxies: active - galaxies: elliptical and lenticular, cD - galaxies: evolution - galaxies: nuclei - galaxies: photometry - galaxies: structure - infrared: galaxies

Simbad objects: 102

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Number of rows : 102
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 3C 15 SyG 00 37 04.1107321824 -01 09 08.407668996   15.34       ~ 232 1
2 ICRF J003820.5-020740 Sy1 00 38 20.52934376 -02 07 40.5469964   19.04 18.02 17.6   ~ 255 1
3 3C 20 Sy2 00 43 09.18053760 +52 03 36.1486440   19.0       ~ 221 1
4 3C 28 rG 00 55 50.583 +26 24 36.68   18.63 19.57 16.26   ~ 213 1
5 Z 384-48 rG 00 57 34.90446247 -01 23 27.5469897   14.07 15.10     ~ 269 1
6 NGC 383 AGN 01 07 24.9647814840 +32 24 45.132586200   13.6 12.14     ~ 821 3
7 2C 94 Sy2 01 08 52.8701830824 +13 20 14.262799812   15.19       ~ 494 2
8 8C 0106+729 Sy1 01 09 44.2610635193 +73 11 57.121454897   19.5       ~ 155 1
9 3C 35 QSO 01 12 02.2561727808 +49 28 34.990660524     15.6     ~ 146 0
10 3C 52 rG 01 48 28.884 +53 32 28.19   18.5       ~ 85 1
11 Z 538-57 Sy1 02 23 11.41124925 +42 59 31.3853324   15.71 14.81     ~ 582 2
12 3C 61.1 Sy2 02 23 13.4857575951 +86 19 13.422392083     19.0     ~ 210 1
13 NAME 3C 75A rG 02 57 41.5615453872 +06 01 36.883348716   14.7       ~ 65 2
14 3C 76.1 rG 03 03 15.0210658512 +16 26 18.881230884   16.00 14.86     ~ 182 2
15 3C 79.0 Sy2 03 10 00.0936589848 +17 05 58.599361932   19.54 18.75     ~ 268 3
16 NGC 1265 rG 03 18 15.674 +41 51 27.94   14.7       ~ 386 2
17 NGC 1275 Bla 03 19 48.1599902040 +41 30 42.108850836   13.10 12.48 11.09   ~ 4243 3
18 Z 390-93 QSO 03 27 54.19499480 +02 33 41.9824262   13.95       ~ 230 1
19 2C 349 Sy2 03 58 54.4370049840 +10 26 02.791855968   16.68 15.41     ~ 356 2
20 3C 105.0 Sy2 04 07 16.4671273272 +03 42 25.813809432   18.5       ~ 241 0
21 3C 111 Sy1 04 18 21.2772425736 +38 01 35.801359968   19.75 18.05     ~ 1002 2
22 MCG+01-12-009 Bla 04 33 11.0956735296 +05 21 15.619461552   15.72 15.05 10.08   ~ 2099 2
23 NAME Per B SyG 04 37 04.37535450 +29 40 13.8179631   21.7       ~ 533 2
24 3C 129 rG 04 49 09.064 +45 00 39.40   19       ~ 273 2
25 LEDA 16124 rG 04 50 06.685 +45 03 05.74   19       ~ 70 1
26 3C 130 rG 04 52 52.8370360032 +52 04 47.201456604   16.5       ~ 92 1
27 3C 132 rG 04 56 42.922 +22 49 23.06   18.5       ~ 157 1
28 ICRF J050258.4+251625 Sy2 05 02 58.47476282 +25 16 25.2757175   20       ~ 187 1
29 3C 135 Sy1 05 14 08.3684211120 +00 56 32.518880340   18.24 17.00     ~ 140 1
30 2C 524 Sy2 06 09 32.701768 +48 04 17.04207   21.198 18.00 18.767   ~ 182 1
31 3C 165 rG 06 43 07.401 +23 19 02.57   19.5       ~ 80 1
32 ICRF J064524.0+212151 Sy2 06 45 24.09954730 +21 21 51.2008841   19.5       ~ 139 1
33 3C 171.0 Sy2 06 55 14.7385158451 +54 08 57.427918985   19.94 19.08     ~ 264 1
34 3C 173.1 rG 07 09 18.2015614632 +74 49 31.815420780   19.982 18.9 17.540   ~ 138 1
35 3C 180 Sy2 07 27 04.70 -02 04 37.0   19       ~ 82 1
36 3C 184.1 Sy2 07 43 01.3778005643 +80 26 26.042651834     17.0     ~ 190 1
37 2XMM J080535.0+240951 Sy2 08 05 35.0054956728 +24 09 50.330022516   15.46       ~ 336 1
38 3C 196.1 Sy2 08 15 27.825 -03 08 27.67   18.490 16.940 16.797   ~ 124 1
39 3C 197.1 BLL 08 21 33.6000545232 +47 02 37.303572516   18.08 17.33     ~ 142 1
40 4C 06.30 rG 08 22 31.9510001544 +05 57 06.787089972   18.04 17.33     ~ 133 1
41 7C 085805.20+291331.00 Sy2 09 01 05.2614565176 +29 01 46.939089828   18.84 18.08 18.600   ~ 132 1
42 3C 219 Sy1 09 21 08.6258123424 +45 38 57.358202856   19.56 18.69     ~ 424 2
43 3C 223.0 Sy2 09 39 52.7594046216 +35 53 58.922078496   19.51 18.60     ~ 279 0
44 4C 36.16 Rad 09 39 55.08 +35 52 13.4           ~ 271 1
45 7C 093818.10+395820.00 Sy2 09 41 24.0268234920 +39 44 41.809159068   16.36 16.4     ~ 195 2
46 ATO J146.9381+07.4223 Sy1 09 47 45.1433922288 +07 25 20.595729756   17.37 16.95     ~ 389 1
47 7C 095855.9+290131 Sy2 10 01 49.5227371368 +28 47 08.943487440   18.21 17.27     ~ 447 1
48 3C 236.0 BLL 10 06 01.75023017 +34 54 10.4016113   15.97       ~ 473 2
49 3C 258 rG 11 24 43.69438 +19 19 28.1428   22.082 21.448 20.513   ~ 86 2
50 NGC 3862 Sy2 11 45 05.00904503 +19 36 22.7409909   14.98 13.97     ~ 646 1
51 NGC 4261 LIN 12 19 23.2160630 +05 49 29.700024   13.92 12.87     ~ 1290 0
52 M 84 Sy2 12 25 03.74333 +12 53 13.1393 12.67 12.09 10.49     ~ 1841 2
53 M 87 AGN 12 30 49.42338414 +12 23 28.0436859 10.16 9.59 8.63   7.49 ~ 7815 3
54 3C 277.3 BLL 12 54 12.0071453880 +27 37 33.952663740   15.94       ~ 379 1
55 2MASX J13110466+2728070 Sy2 13 11 04.6615315248 +27 28 07.229535420   18.93 18.00     ~ 200 1
56 6C 131905+425044 Sy2 13 21 17.813 +42 35 15.38   16.86 16.23     ~ 282 1
57 ICRF J133253.2+020045 Sy1 13 32 53.27053616 +02 00 45.6991690   19.08 18.49     ~ 219 1
58 3C 288 rG 13 38 49.9 +38 51 15   18.3       ~ 176 1
59 Z 162-21 BLL 13 52 17.8719816576 +31 26 46.487381604   16.10 15.10     ~ 502 3
60 NGC 5532 LIN 14 16 52.9370483073 +10 48 26.616631120   13.3 12.59     ~ 364 2
61 3C 300 Sy2 14 22 59.85648 +19 35 36.7152   19.66 18.73     ~ 206 2
62 ICRF J144302.7+520137 Sy1 14 43 02.76069031 +52 01 37.2985156   18.96 18.29     ~ 316 3
63 IC 1065 Sy2 14 49 21.5927137128 +63 16 13.799495280   17.30 16.39     ~ 378 1
64 VV 204 SyG 15 04 57.1195361592 +26 00 58.455780156   15.24       ~ 299 1
65 3C 314.1 rG 15 10 23.1 +70 45 54   17       ~ 92 0
66 7C 151131.1+261840 Sy2 15 13 40.0235447784 +26 07 23.749576572   16.30       ~ 239 1
67 Z 49-90 Sy2 15 16 44.4893939136 +07 01 17.825410740   15.19 14.17     ~ 463 4
68 3C 319.0 rG 15 24 05.499 +54 28 14.64   18.5       ~ 154 1
69 3C 321 Sy1 15 31 43.46520 +24 04 18.9948   16.0   15.40   ~ 341 1
70 ICRF J154743.5+205216 Sy1 15 47 43.5376371336 +20 52 16.612810320   16.80 16.69 15.70   ~ 521 1
71 3C 326 Rad 15 52 24.9 +20 05 57   17.87 17.08     ~ 226 3
72 3C 332.0 Sy1 16 17 42.5380089648 +32 22 34.372277976   18.25 17.45     ~ 268 1
73 NGC 6166 Sy2 16 28 38.24470063 +39 33 04.2335319   12.78 11.78     ~ 793 2
74 NGC 6251 Bla 16 32 31.96989253 +82 32 16.3999044 15.24 14.66 12.89 7.62   ~ 772 1
75 3C 346.0 BLL 16 43 48.605 +17 15 49.43   17.2       ~ 270 1
76 MCG+01-43-006 SyG 16 51 07.9886687784 +04 59 35.547131472     18.25     ~ 502 1
77 3C 349 rG 16 59 32.079 +47 02 16.56   19 19.0     ~ 163 1
78 4C -00.67 Sy2 17 20 28.1680537512 -00 58 46.582453920   15.36       ~ 345 1
79 4C 31.47 rG 17 28 20.1089243496 +31 46 02.604685584   15.5       ~ 131 1
80 Z 340-35 BLL 18 06 50.6802916920 +69 49 28.109609256   14.77 14.22 11.39   ~ 909 1
81 3C 379.1 QSO 18 24 32.9768304384 +74 20 59.004997872   18.0 18.0     ~ 87 1
82 3C 381.0 Sy2 18 33 46.2946146576 +47 27 02.566037088   18.64 17.24     ~ 209 1
83 Z 173-14 Sy1 18 35 03.3896172576 +32 41 46.855964616   16.50 15.39 10.50   ~ 688 1
84 3C 390.3 Bla 18 42 08.9904975672 +79 46 17.127835104   16.06 15.38     ~ 1381 1
85 3C 388.0 SyG 18 44 02.3840387736 +45 33 29.628672300   16.91 15.56     ~ 338 1
86 3C 401 SyG 19 40 25.116 +60 41 34.97   19.1       ~ 206 1
87 Z 257-7 LSB 19 41 45.9805683216 +50 35 45.372755328   14.9 14.0     ~ 113 1
88 3C 403.0 Sy2 19 52 15.7996999344 +02 30 24.238200816   15.42 16.5     ~ 353 1
89 4C -01.51 rG 19 52 35.0 -01 17 58     17.5     ~ 55 1
90 MCG+07-41-003 Bla 19 59 28.35656837 +40 44 02.0972325   16.22 15.10     ~ 2537 2
91 3C 410 QSO 20 20 06.5632764672 +29 42 14.180763312   19.5       ~ 125 0
92 3C 424 BLL 20 48 12.030 +07 01 17.48   18 18.40     ~ 149 1
93 3C 430 QSO 21 18 19.0965352800 +60 48 07.351475472   15       ~ 114 1
94 3C 433.0 Sy2 21 23 44.5778423928 +25 04 27.670672416   17.660 16.350     ~ 338 1
95 3C 436 Sy2 21 44 11.7308886192 +28 10 18.750481356   18.5       ~ 196 1
96 2C 1820 SyG 21 55 52.324 +38 00 28.51   19.20       ~ 234 1
97 NGC 7236 LIN 22 14 44.9886363216 +13 50 47.450963760   14.3 14.3     ~ 286 1
98 LEDA 68751 Sy1 22 23 49.5398449645 -02 06 12.856394895   16.93 15.77 16.02   ~ 511 2
99 Z 514-50 SyG 22 31 20.5885689288 +39 21 29.593072404   14.6       ~ 446 1
100 3C 452 Sy2 22 45 48.7616172744 +39 41 15.906782184   17.60 16.56     ~ 391 1
101 ICRF J231635.1+040518 Sy2 23 16 35.1933566880 +04 05 18.297101076   17.54 16.68 17.220   ~ 309 1
102 NGC 7720 Sy1 23 38 29.38324020 +27 01 53.2580084   13.9 13.3     ~ 565 4

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