2025ApJ...993..190C

Query : 2025ApJ...993..190C

2025ApJ...993..190C - Astrophys. J., 993, 190 (2025/November-2)

The Gamma-Ray Emission from Radio Galaxies and Their Contribution to the Isotropic Gamma-Ray Background.

CIRCIELLO A., McDANIEL A., DI MAURO M., KARWIN C., KHATIYA N.S., AJELLO M., DONATO F., HARTMANN D. and STRONG A.W.

Abstract (from CDS):

We evaluate the contribution to the isotropic gamma-ray background (IGRB) coming from radio galaxies (RGs), the subclass of radio-loud active galactic nuclei with the highest misalignment from the line of sight. Since only a small number of RGs are detected in γ-rays compared to the largest known radio population, the correlation between radio and γ-ray emission serves a crucial tool to characterize the γ-ray properties of these sources. We analyze the population of RGs using two samples. The first sample contains 26 sources individually detected by the Large Area Telescope (LAT) on board the Fermi Gamma-ray Space Telescope at γ-rays. The second sample contains 210 RGs for which the γ-ray emission is not significantly detected by the LAT. We use a stacking analysis to characterize the average properties of the γ-ray emission of the two samples, separately at first and then combined. We then evaluate the correlation between their γ-ray emission and the emission from their radio core at 5 GHz, and we use it to determine their contribution to the IGRB. Due to the limited number of RGs detected at the γ-rays, information on the γ-ray luminosity function is limited. The Lγ-LC,5GHz correlation allows us to characterize it starting from the luminosity function of the radio cores, which is modeled with greater accuracy due to the larger number of sources detected at these frequencies. We find that the diffuse emission as extrapolated from the properties of the subthreshold RGs is lower than the one inferred from detected RGs, showing that the contribution of the population of RGs to the IGRB is lower than the previous estimates and is around the ∼30% level of the IGRB intensity.

Abstract Copyright: © 2025. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Diffuse radiation - Radio galaxies - Gamma-ray astronomy

Status at CDS : Large table(s) will be appraised for possible ingestion in VizieR.

Simbad objects: 251

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Number of rows : 251
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 IC 1531 rG 00 09 35.5586611440 -32 16 36.924164364   13.48   11.90   ~ 93 1
2 4C 12.03 rG 00 09 52.6114659912 +12 44 04.661082672   17.8       ~ 79 1
3 PKS J0020-2014 rG 00 20 26.43 -20 14 21.0           ~ 16 1
4 LEDA 2822170 Sy2 00 24 30.1497156456 -29 28 54.448830876     20.0     ~ 67 1
5 PKS J0025-3303 Rad 00 25 30.45 -33 03 46.7           ~ 4 1
6 [VV98] J003150.4-265229 BLL 00 31 50.4963491544 -26 52 24.690911052     19.6     ~ 14 1
7 3C 15 SyG 00 37 04.1107321824 -01 09 08.407668996   15.34       ~ 232 1
8 3C 16 rG 00 37 44.570 +13 19 55.00   21       ~ 128 3
9 ICRF J003820.5-020740 Sy1 00 38 20.52934376 -02 07 40.5469964   19.04 18.02 17.6   ~ 255 1
10 3C 18.0 Sy1 00 40 50.5382453904 +10 03 26.625575952   18.5       ~ 160 1
11 4C 32.03 rG 00 40 54.9 +33 10 04   20       ~ 147 1
12 3C 20 Sy2 00 43 09.18053760 +52 03 36.1486440   19.0       ~ 221 1
13 Z 384-48 rG 00 57 34.90446247 -01 23 27.5469897   14.07 15.10     ~ 269 1
14 NGC 315 LIN 00 57 48.88334410 +30 21 08.8119345 12.80 12.20 11.16 11.26   ~ 869 2
15 PKS J0058-2401 rG 00 58 28.19 -24 01 21.7           ~ 9 1
16 NGC 383 AGN 01 07 24.9647814840 +32 24 45.132586200   13.6 12.14     ~ 821 3
17 2C 94 Sy2 01 08 52.8701830824 +13 20 14.262799812   15.19       ~ 494 2
18 8C 0106+729 Sy1 01 09 44.2610635193 +73 11 57.121454897   19.5       ~ 155 1
19 3C 35 QSO 01 12 02.2561727808 +49 28 34.990660524     15.6     ~ 146 0
20 PKS 0114-47 rG 01 16 25.0503696336 -47 22 41.107795248   16.5 16.5     ~ 65 1
21 PKS 0125-216 rG 01 28 08.708 -21 22 11.13     19.0     ~ 13 1
22 3C 42 rG 01 28 30.332 +29 02 59.45   20       ~ 145 1
23 NGC 612 Sy2 01 33 57.751 -36 29 35.80   13.90 13.15 12.33   ~ 252 0
24 3C 46 rG 01 35 24.67 +37 53 47.0   19.5       ~ 136 2
25 2E 437 Sy1 01 36 24.4208152464 +20 57 27.522990972   18.15 18.10     ~ 367 2
26 3C 48 QSO 01 37 41.2996631208 +33 09 35.080388820   16.62 16.20     ~ 2924 2
27 PKS 0148-297 rG 01 50 34.320 -29 32 43.63           ~ 26 1
28 8C 0149+710 BLL 01 53 25.85101910 +71 15 06.4633311     15.50     ~ 105 1
29 PKS J0157-2102 Rad 01 57 55.725 -21 03 06.77           ~ 5 1
30 ICRF J020213.6-762003 Sy1 02 02 13.6936269168 -76 20 03.062287464   16.95 16.90     ~ 111 1
31 3C 62 Sy2 02 15 37.4257228872 -12 59 30.243550020     18.0     ~ 112 1
32 ESO 198-1 rG 02 16 45.1215402888 -47 49 08.764340880   14.40   13.10   ~ 56 2
33 3C 63 BLL 02 20 54.3166497648 -01 56 50.431204212           ~ 149 1
34 Z 538-57 Sy1 02 23 11.41124925 +42 59 31.3853324   15.71 14.81     ~ 582 2
35 3C 61.1 Sy2 02 23 13.4857575951 +86 19 13.422392083     19.0     ~ 210 1
36 7C 022118.10+273638.00 Sy1 02 24 12.2865158736 +27 50 11.538285648   19.502 18 18.263   ~ 210 1
37 ICRF J022502.8-231248 Sy1 02 25 02.8213027584 -23 12 48.487774356   18.92 18.0 17.67   ~ 76 1
38 PKS J0231-2040 Rad 02 31 32.00 -20 39 37.8           ~ 5 1
39 NGC 1004 rG 02 37 41.7814621344 +01 58 31.117228536   14.3       ~ 67 1
40 PKS J0249-2030 Rad 02 49 37.91 -20 29 34.8           ~ 4 1
41 NVSS J025651-271756 rG 02 56 51.374 -27 17 56.33           ~ 13 1
42 3C 75 PaG 02 57 41.64 +06 01 28.0           ~ 312 1
43 3C 76.1 rG 03 03 15.0210658512 +16 26 18.881230884   16.00 14.86     ~ 182 2
44 PKS 0305-226 rG 03 07 31.4657 -22 25 14.822     18.5     ~ 15 1
45 NGC 1218 Sy1 03 08 26.22380005 +04 06 39.3007808   12.84       ~ 413 0
46 3C 79.0 Sy2 03 10 00.0936589848 +17 05 58.599361932   19.54 18.75     ~ 268 3
47 QSO B0309+411 Bla 03 13 01.96212044 +41 20 01.1834497   18.0   14.59   ~ 178 1
48 IC 310 AGN 03 16 42.9787569912 +41 19 29.615579544   14.3       ~ 311 2
49 NGC 1265 rG 03 18 15.674 +41 51 27.94   14.7       ~ 386 2
50 PKS 0319-454 rG 03 21 21.7 -45 09 33     18     ~ 25 0
51 NGC 1316 rG 03 22 41.789 -37 12 29.52 9.81 9.15 8.53 7.66   ~ 1491 1
52 4C 05.14 rG 03 23 20.2607119272 +05 34 11.891999568     19     ~ 82 1
53 Z 390-93 QSO 03 27 54.19499480 +02 33 41.9824262   13.95       ~ 230 1
54 LEDA 738553 Sy2 03 28 36.522 -28 41 55.47   17.064   15.943   ~ 69 1
55 PKS 0332-39 rG 03 34 03.32236 -39 00 36.2182   16.03 16.03     ~ 45 0
56 4C -01.12 LIN 03 34 15.5780017080 -01 10 56.306052300     16     ~ 137 1
57 Z 525-41 rG 03 34 18.4162545072 +39 21 24.413823900   14.2       ~ 109 1
58 [VV98] J034039.6-254734 QSO 03 40 40.5 -25 47 36           ~ 8 1
59 3C 93.0 BLL 03 43 29.9963486496 +04 57 48.612170988   18.49 18.14     ~ 155 1
60 LEDA 132162 AGN 03 46 30.5792409552 -34 22 46.230872124   16.26       ~ 43 1
61 PKS J0347-2900 rG 03 47 00.910 -29 00 46.37           ~ 13 1
62 LEDA 13982 Sy2 03 51 35.7643720392 -27 44 34.896912468   16.0       ~ 157 1
63 PKS J0356-2612 rG 03 56 51.7363398936 -26 12 42.971874768     18.5     ~ 11 1
64 2C 349 Sy2 03 58 54.4370049840 +10 26 02.791855968   16.68 15.41     ~ 356 2
65 PKS 0357-247 rG 03 59 56.397 -24 33 55.23     18.5     ~ 10 1
66 3C 99.0 Sy2 04 01 07.6007854294 +00 36 32.480076280   20.200 19.010 18.532   ~ 108 1
67 4C 03.08 Rad 04 07 25.357 +03 40 43.57           ~ 6 1
68 ICRF J041340.3+111214 Sy2 04 13 40.34100355 +11 12 14.7860055   18.96 18.01     ~ 334 1
69 4C 14.11 Rad 04 14 27.618 +14 16 55.66           ~ 18 1
70 3C 111 Sy1 04 18 21.2772425736 +38 01 35.801359968   19.75 18.05     ~ 1002 2
71 PKS J0423-7245 rG 04 23 56.5 -72 45 59           ~ 16 1
72 IC 2082 rG 04 29 08.1997552056 -53 49 40.208971800   13.9 12.79     ~ 91 1
73 PKS 0429-616 rG 04 30 14.9 -61 32 49           ~ 20 1
74 MCG+01-12-009 Bla 04 33 11.0956735296 +05 21 15.619461552   15.72 15.05 10.08   ~ 2099 2
75 ESO 484-37 rG 04 36 35.3483410128 -22 26 38.799639672   15.22 15.8 13.46   ~ 34 0
76 NAME Per B SyG 04 37 04.37535450 +29 40 13.8179631   21.7       ~ 533 2
77 LEDA 745026 Sy2 04 44 37.7077672896 -28 09 54.445127796   18.5       ~ 104 1
78 PKS 0446-20 rG 04 48 30.5629072752 -20 32 13.500255624   16.86   15.36   ~ 35 1
79 NGC 1692 rG 04 55 23.7155967168 -20 34 16.066069536   14.21 14.0 12.70   ~ 97 1
80 3C 132 rG 04 56 42.922 +22 49 23.06   18.5       ~ 157 1
81 PKS J0459-2439 rG 04 59 55.2490518768 -24 39 40.093485048           ~ 12 1
82 QSO B0508-220 BLL 05 11 00.5030720328 -22 01 54.703270776   16.9 18.5     ~ 29 1
83 LEDA 147136 Sy2 05 13 31.9712729664 -30 28 50.064973896   16.52 16.5 15.13   ~ 49 0
84 3C 135 Sy1 05 14 08.3684211120 +00 56 32.518880340   18.24 17.00     ~ 140 1
85 ESO 252-18A Sy1 05 19 49.7229323856 -45 46 43.852662732   15.73 15.77 14.85   ~ 714 0
86 QSO B0602-319 QSO 06 04 14.5249715184 -31 55 58.492829784     18.3     ~ 57 1
87 PKS J0620-3711 Rad 06 19 57.08 -37 11 47.7           ~ 8 1
88 PKS 0620-526 rG 06 21 43.30328 -52 41 33.2978     15.5 19.34   ~ 92 1
89 ESO 161-7 IG 06 26 21.49 -53 41 09.2   14.48 15.4 15.16   ~ 77 2
90 LEDA 19057 LIN 06 26 49.5758024688 -54 32 34.581523416   15.83 16 13.52   ~ 50 1
91 QSO B0625-354 BLL 06 27 06.7286533392 -35 29 15.363665088   14.93       ~ 206 1
92 LEDA 19313 Sy2 06 36 32.2509554376 -20 34 53.181243300   18.27 17.58     ~ 139 2
93 3C 171.0 Sy2 06 55 14.7385158451 +54 08 57.427918985   19.94 19.08     ~ 264 1
94 NGC 2329 rG 07 09 08.0049393360 +48 36 55.726108020   13.7 13.99     ~ 143 3
95 3C 173.1 rG 07 09 18.2015614632 +74 49 31.815420780   19.982 18.9 17.540   ~ 138 1
96 PKS 0707-35 rG 07 09 34.4976832896 -36 03 46.913660568           ~ 53 1
97 PKS J0717-3621 rG 07 17 08.1151208976 -36 21 58.725123120   15.47   13.64   ~ 36 1
98 3C 184.1 Sy2 07 43 01.3778005643 +80 26 26.042651834     17.0     ~ 190 1
99 4C 56.16 rG 07 49 48.077 +55 54 19.45           ~ 176 1
100 NGC 2484 Sy2 07 58 28.10812817 +37 47 11.8076475   14.15 14.9     ~ 284 1
101 2XMM J080535.0+240951 Sy2 08 05 35.0054956728 +24 09 50.330022516   15.46       ~ 336 1
102 3C 195 Sy1 08 08 53.6297647896 -10 27 39.744541656   17.14 18 15.76   ~ 112 1
103 3C 196.1 Sy2 08 15 27.825 -03 08 27.67   18.490 16.940 16.797   ~ 124 1
104 3C 200 rG 08 27 25.38019 +29 18 44.9601   20       ~ 178 1
105 LB 9308 Sy1 09 06 31.8732919056 +16 46 11.785679112   18.48 18.27     ~ 303 3
106 MCG-02-24-007 LIN 09 18 05.66848602 -12 05 43.8060823   14.38 14.8     ~ 1077 1
107 3C 219 Sy1 09 21 08.6258123424 +45 38 57.358202856   19.56 18.69     ~ 424 2
108 NGC 2892 rG 09 32 52.9316927952 +67 37 02.634719448   14.4       ~ 77 1
109 3C 223.0 Sy2 09 39 52.7594046216 +35 53 58.922078496   19.51 18.60     ~ 279 0
110 NVSS J094051-204800 rG 09 40 50.210 -20 47 27.87           ~ 10 1
111 ATO J146.9381+07.4223 Sy1 09 47 45.1433922288 +07 25 20.595729756   17.37 16.95     ~ 389 1
112 4C 73.08 Sy2 09 49 45.967 +73 14 23.25   16.00   11.7   ~ 127 0
113 NGC 3078 rG 09 58 24.59498715 -26 55 35.9552427   12.00 11.07 10.51   ~ 164 1
114 7C 095855.9+290131 Sy2 10 01 49.5227371368 +28 47 08.943487440   18.21 17.27     ~ 447 1
115 3C 236.0 BLL 10 06 01.75023017 +34 54 10.4016113   15.97       ~ 473 2
116 PKS J1008-2139 rG 10 08 34.28110320 -21 39 13.8170880           ~ 10 1
117 LEDA 2826208 Sy1 10 12 27.7058034600 -27 26 15.932844924           ~ 16 1
118 LEDA 2826215 Sy1 10 13 29.7115118112 -28 31 25.625892396   16.80 16.88 17.04   ~ 68 1
119 PKS J1025-2515 rG 10 25 17.665 -25 16 19.35           ~ 12 1
120 PKS J1027-2311 Rad 10 27 51.17 -23 11 00.6           ~ 5 1
121 3C 244.1 QSO 10 33 33.9860997312 +58 14 35.611906344   19.0 19.0     ~ 191 1
122 PKS J1050-2406 Rad 10 50 33.776 -24 05 12.44           ~ 4 1
123 3C 246 Sy1 10 51 29.9161672920 -09 18 10.191977064   16.85 16.79 16.5   ~ 197 1
124 LEDA 740618 Sy2 10 55 33.4026832680 -28 31 33.971827260   16.5       ~ 38 1
125 NVSS J105854-362047 Rad 10 58 54.31 -36 20 48.3           ~ 4 1
126 PMN J1058-2730 rG 10 58 56.697 -27 30 29.71           ~ 8 1
127 [OKM2018] SWIFT J1104.8+7689 Sy1 11 04 13.8611496720 +76 58 58.194549084   15.70 15.72 15.40   ~ 564 1
128 Z 156-46 rG 11 16 34.6160545656 +29 15 17.112000564   15.02 14.90     ~ 133 1
129 ICRF J112009.1-250807 Sy1 11 20 09.1125558984 -25 08 07.543310640   17.26 17.07     ~ 54 1
130 PKS J1125-3523 Rad 11 25 54.08 -35 23 22.1           ~ 6 1
131 PKS 1126-290 rG 11 28 54.430 -29 21 34.40           ~ 15 1
132 PKS J1129-2457 rG 11 29 03.8218154064 -24 57 41.137832700   17.90   15.59   ~ 9 1
133 NGC 3862 Sy2 11 45 05.00904503 +19 36 22.7409909   14.98 13.97     ~ 646 1
134 NGC 3894 Bla 11 48 50.35817663 +59 24 56.3822416   12.9   11.57   ~ 268 1
135 ICRF J115421.7-350529 Sy1 11 54 21.7842834888 -35 05 29.079469716   18.81 17.84     ~ 139 1
136 3C 268.3 Sy2 12 06 24.70656 +64 13 36.8760 22.74 21.847 20.790 19.910   ~ 196 1
137 NGC 4261 LIN 12 19 23.2160630 +05 49 29.700024   13.92 12.87     ~ 1290 0
138 M 84 Sy2 12 25 03.74333 +12 53 13.1393 12.67 12.09 10.49     ~ 1841 2
139 ACO 1552 ClG 12 29 46.18 +11 44 32.3           ~ 109 0
140 M 87 AGN 12 30 49.42338414 +12 23 28.0436859 10.16 9.59 8.63   7.49 ~ 7815 3
141 3C 274.1 rG 12 35 22.97 +21 20 18.3   20       ~ 144 0
142 6dFGS gJ123537.8-251217 Sy1 12 35 37.7721 -25 12 16.114   17.54 17.18     ~ 76 1
143 ESO 65-1 rG 12 37 11.73301 -72 35 31.3080   16.2       ~ 27 0
144 NGC 4696 rG 12 48 49.2724775784 -41 18 39.304053252   11.21   10.7   ~ 510 3
145 3C 278 QSO 12 54 36.96 -12 33 31.8     11.6     ~ 125 3
146 PKS J1259-2539 rG 12 59 48.9889345248 -25 39 38.743934544   16.04   14.93 14.55 ~ 29 1
147 LEDA 45364 LIN 13 06 19.2497943600 +11 13 39.761596200   15.0 13.0     ~ 39 1
148 LEDA 2827430 Sy2 13 06 42.0499185024 -21 47 50.988018192   17.5       ~ 28 2
149 PKS J1309-2634 rG 13 09 16.664 -26 34 02.26           ~ 10 1
150 2MASX J13110466+2728070 Sy2 13 11 04.6615315248 +27 28 07.229535420   18.93 18.00     ~ 200 1
151 NGC 5090 rG 13 21 12.84471811 -43 42 16.8452073   12.59 11.51 10.84   ~ 208 1
152 6C 131905+425044 Sy2 13 21 17.813 +42 35 15.38   16.86 16.23     ~ 282 1
153 NAME Centaurus A BLL 13 25 27.61521044 -43 01 08.8050291   8.18 6.84 6.66   ~ 4774 3
154 PKS J1326-2726 Rad 13 26 15.620 -27 26 02.24           ~ 5 1
155 PKS 1329-25 rG 13 32 31.9790268072 -25 59 45.023890488     18     ~ 21 1
156 ICRF J133253.2+020045 Sy1 13 32 53.27053616 +02 00 45.6991690   19.08 18.49     ~ 219 1
157 IC 4296 rG 13 36 39.03253319 -33 57 57.0730368   11.52 12.99 10.00 10.79 ~ 520 2
158 3C 288 rG 13 38 49.9 +38 51 15   18.3       ~ 176 1
159 PKS J1346-2537 Rad 13 46 41.77 -25 38 31.3           ~ 3 0
160 NAME Cen B QSO 13 46 49.04248361 -60 24 29.3553900         15.74 ~ 165 0
161 Z 162-21 BLL 13 52 17.8719816576 +31 26 46.487381604   16.10 15.10     ~ 502 3
162 ESO 510-23 rG 13 57 16.2183165144 -25 23 24.968739012   15.15   13.63 13.57 ~ 35 1
163 PKS J1359-4152 cm 13 58 58.00 -41 52 38.0           ~ 7 1
164 PMN J1401-2142 rG 14 01 34.595 -21 42 03.79           ~ 11 1
165 NGC 5419 rG 14 03 38.7225244848 -33 58 41.881842120   11.77 11.33 10.21 14.44 ~ 208 3
166 3C 295 Sy1 14 11 20.6 +52 12 09   22.34 20.80 18.54   ~ 1021 4
167 NGC 5532 LIN 14 16 52.9370483073 +10 48 26.616631120   13.3 12.59     ~ 364 2
168 PKS 1416-49 rG 14 20 03.6963774336 -49 35 42.181495800   15.63   15.71   ~ 38 1
169 3C 299 rG 14 21 05.6960 +41 44 49.260   20.496 19.330 18.560   ~ 187 1
170 3C 300 Sy2 14 22 59.85648 +19 35 36.7152   19.66 18.73     ~ 206 2
171 LEDA 2827972 Sy1 14 24 16.4729361336 -38 26 47.632428636   16.91 16.87     ~ 38 1
172 PMN J1428-4813 Rad 14 28 57.04 -48 11 59.9           ~ 7 1
173 ICRF J144302.7+520137 Sy1 14 43 02.76069031 +52 01 37.2985156   18.96 18.29     ~ 316 3
174 Z 164-31 rG 14 49 27.9240277488 +27 46 50.329531668   15.0       ~ 59 1
175 VV 204 SyG 15 04 57.1195361592 +26 00 58.455780156   15.24       ~ 299 1
176 Z 21-63 BLL 15 16 40.21905672 +00 15 01.9090936   17.28 16.64 10.53   ~ 217 1
177 Z 49-90 Sy2 15 16 44.4893939136 +07 01 17.825410740   15.19 14.17     ~ 463 4
178 PMN J1518+0613 Bla 15 18 45.7276771080 +06 13 56.112249504   16.65   15.37   ~ 66 1
179 Z 49-138 Sy2 15 21 22.54359760 +04 20 30.1367860   15.6 16     ~ 76 1
180 3C 321 Sy1 15 31 43.46520 +24 04 18.9948   16.0   15.40   ~ 341 1
181 3C 326 Rad 15 52 24.9 +20 05 57   17.87 17.08     ~ 226 3
182 IRAS 15599+0206 Sy1 16 02 27.3724911037 +01 57 56.238625559   17.70 16.31     ~ 250 1
183 3C 327.1 Sy1 16 04 45.4065607140 +01 17 50.317968747   20.5       ~ 138 1
184 4C 00.58 rG 16 06 12.6837900528 +00 00 27.196980048   16.85       ~ 72 1
185 NGC 6109 LIN 16 17 40.54006 +35 00 15.1861   14.9       ~ 193 1
186 3C 341 rG 16 28 04.049 +27 41 43.07   19       ~ 146 1
187 NGC 6166 Sy2 16 28 38.24470063 +39 33 04.2335319   12.78 11.78     ~ 793 2
188 NGC 6251 Bla 16 32 31.96989253 +82 32 16.3999044 15.24 14.66 12.89 7.62   ~ 772 1
189 3C 346.0 BLL 16 43 48.605 +17 15 49.43   17.2       ~ 270 1
190 MCG+01-43-006 SyG 16 51 07.9886687784 +04 59 35.547131472     18.25     ~ 502 1
191 3C 349 rG 16 59 32.079 +47 02 16.56   19 19.0     ~ 163 1
192 2MASX J17024095-7741569 BLL 17 02 41.0094738644 -77 41 57.365282514     17.5     ~ 29 1
193 8C 1704+608 Bla 17 04 41.3742408840 +60 44 30.520617000   15.65 15.40 15.30   ~ 782 1
194 4C -00.67 Sy2 17 20 28.1680537512 -00 58 46.582453920   15.36       ~ 345 1
195 NGC 6328 QSO 17 23 41.02933859 -65 00 36.6106377   13.17 13.2 11.45 12.2 ~ 270 1
196 ICRF J173735.7-563403 Sy2 17 37 35.7711421992 -56 34 03.153321552   17.0       ~ 96 0
197 NGC 6454 AGN 17 44 56.60706225 +55 42 17.1610560   13.0 13.5     ~ 83 1
198 PKS 1829-344 Rad 18 32 32.474 -34 22 37.76           ~ 8 1
199 3C 381.0 Sy2 18 33 46.2946146576 +47 27 02.566037088   18.64 17.24     ~ 209 1
200 Z 173-14 Sy1 18 35 03.3896172576 +32 41 46.855964616   16.50 15.39 10.50   ~ 688 1
201 Z 114-25 rG 18 38 26.25747 +17 11 49.6210           ~ 205 2
202 3C 390.3 Bla 18 42 08.9904975672 +79 46 17.127835104   16.06 15.38     ~ 1381 1
203 PKS 1839-48 rG 18 43 14.61807 -48 36 23.1997   16.79 17.5 15.25   ~ 64 1
204 3C 388.0 SyG 18 44 02.3840387736 +45 33 29.628672300   16.91 15.56     ~ 338 1
205 3C 401 SyG 19 40 25.116 +60 41 34.97   19.1       ~ 206 1
206 3C 403.0 Sy2 19 52 15.7996999344 +02 30 24.238200816   15.42 16.5     ~ 353 1
207 LEDA 63899 EmG 19 58 29.1197853864 -55 09 12.876222276   16.5       ~ 63 0
208 3C 411.0 BLL 20 22 08.4398793264 +10 01 11.315068752   19.70 19.4     ~ 113 2
209 RX J2024.3-5723 QSO 20 24 20.5420678872 -57 23 43.549295928     18.5     ~ 37 1
210 QSO B2024-217 QSO 20 27 04.38712414 -21 36 19.0317076     19     ~ 38 1
211 6dFGS gJ203316.6-225317 Sy1 20 33 16.6292274984 -22 53 17.002413708   17.2   17.2   ~ 48 1
212 [VV96] J203353.1-730359 QSO 20 33 52.8413606016 -73 03 58.221724644     18     ~ 17 1
213 MCG-06-45-007 rG 20 34 44.7316307880 -35 49 01.830697176   17.10   15.39   ~ 23 1
214 PMN J2041-2752 Rad 20 41 41.037 -27 52 40.63           ~ 4 1
215 PKS 2040-267 rG 20 43 43.44 -26 32 56.5           ~ 28 1
216 3C 424 BLL 20 48 12.030 +07 01 17.48   18 18.40     ~ 149 1
217 NGC 6998 rG 21 01 37.712 -28 01 54.35   15.21 15.6 13.61   ~ 96 1
218 PMN J2104-2112 rG 21 04 17.6818456128 -21 13 02.546717448   17.99   16.41   ~ 10 1
219 NVSS J210722-252615 Rad 21 07 22.40 -25 26 15.8           ~ 5 1
220 PMN J2110-2818 rG 21 10 31.692 -28 18 02.46           ~ 8 1
221 PMN J2119-2452 rG 21 19 02.493 -24 52 11.82           ~ 13 1
222 PMN J2121-2628 Rad 21 21 19.628 -26 28 22.31           ~ 4 1
223 3C 433.0 Sy2 21 23 44.5778423928 +25 04 27.670672416   17.660 16.350     ~ 338 1
224 ICRF J213745.1-143255 Sy1 21 37 45.1959922824 -14 32 55.695508728 15.41 15.63 15.53 15.0   ~ 390 1
225 3C 436 Sy2 21 44 11.7308886192 +28 10 18.750481356   18.5       ~ 196 1
226 SGC 214804-5534.2 rG 21 51 27.2 -55 20 32           ~ 7 0
227 2MASS J21515100-1946056 Sy1 21 51 51.0358412256 -19 46 05.524731516     17.90     ~ 37 1
228 2C 1820 SyG 21 55 52.324 +38 00 28.51   19.20       ~ 234 1
229 ESO 75-41 BLL 21 57 05.9801262624 -69 41 23.686042524   14.23 13.79 12.94   ~ 299 1
230 2dFGRS TGS005Z206 Sy2 22 09 20.1637016208 -23 31 53.883877692   17.0   15.983   ~ 48 1
231 NGC 7236 LIN 22 14 44.9886363216 +13 50 47.450963760   14.3 14.3     ~ 286 1
232 LEDA 68751 Sy1 22 23 49.5398449645 -02 06 12.856394895   16.93 15.77 16.02   ~ 511 2
233 PKS 2225-308 rG 22 27 54.4412209272 -30 34 31.727874288   15.63   13.850   ~ 46 1
234 QSO B2226-4106 QSO 22 29 18.6218863272 -40 51 32.828583744     18.1     ~ 39 1
235 PMN J2229-2210 rG 22 29 43.659 -22 10 46.36           ~ 14 1
236 Z 514-50 SyG 22 31 20.5885689288 +39 21 29.593072404   14.6       ~ 446 1
237 PKS 2236-264 rG 22 39 19.83 -26 10 12.6     19.0     ~ 11 1
238 3C 452 Sy2 22 45 48.7616172744 +39 41 15.906782184   17.60 16.56     ~ 391 1
239 NGC 7385 QSO 22 49 54.58599807 +11 36 30.8455760   14.4 13.01     ~ 183 1
240 QSO B2300-189 Bla 23 03 02.9760289032 -18 41 25.823118480   18.29 17.82 16.569   ~ 142 1
241 PKS 2308-214 rG 23 10 46.574 -21 08 32.87     18.0     ~ 10 1
242 3C 457 QSO 23 12 07.590 +18 45 41.51   19.5       ~ 95 1
243 3C 456 Sy2 23 12 28.0711694296 +09 19 26.469101543   18.54       ~ 116 2
244 PKS J2314-2155 rG 23 14 38.92 -21 55 54.8           ~ 14 1
245 ICRF J231635.1+040518 Sy2 23 16 35.1933566880 +04 05 18.297101076   17.54 16.68 17.220   ~ 309 1
246 ICRF J232653.7-020213 BLL 23 26 53.77670595 -02 02 13.7811657   18.3       ~ 60 1
247 NGC 7720 Sy1 23 38 29.38324020 +27 01 53.2580084   13.9 13.3     ~ 565 4
248 PKS J2340-2849 Rad 23 40 50.08 -28 48 55.1           ~ 6 1
249 MCG-05-55-032 rG 23 41 29.76236715 -29 19 15.0382726   15.58   13.394   ~ 42 1
250 MCG-06-01-008 QSO 23 57 00.7406438328 -34 45 32.994968292   13.89 13.26 12.19   ~ 131 2
251 LEDA 73132 Sy2 23 59 04.31090 -60 54 59.2180   16.61       ~ 155 1

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