2004ApJ...601..142C

Query : 2004ApJ...601..142C

2004ApJ...601..142C - Astrophys. J., 601, 142-150 (2004/January-3)

Stacking searches for gamma-ray emission above 100 MeV from radio and Seyfert galaxies.

CILLIS A.N., HARTMAN R.C. and BERTSCH D.L.

Abstract (from CDS):

The EGRET telescope on board Compton Gamma Ray Observatory detected more than 60 sources of high-energy gamma radiation associated with active galactic nuclei (AGNs). All but one of those belong to the blazar subclass; the only exception is the nearby radio galaxy Centaurus A. Since there is no obvious reason other than proximity to expect Cen A to be the only nonblazar AGN emitting in high-energy gamma rays, we have utilized the ``stacking'' technique to search for emission above 100 MeV from two nonblazar AGN subclasses, radio galaxies and Seyfert galaxies. Maps of gamma-ray counts, exposure, and diffuse background have been created, then co-added in varying numbers based on sorts by redshift, 5 GHz flux density, and optical brightness, and finally tested for gamma-ray emission. No detection significance greater than 2 σ has been found for any subclass, sorting parameter, or number of objects co-added. Monte Carlo simulations have also been performed to validate the technique and estimate the significance of the results.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Active - Galaxies: Seyfert - Gamma Rays: Observations

CDS comments: table 2 : NGC 1235 is a misprint for NGC 1233

Simbad objects: 144

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Number of rows : 144
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 ICRF J003820.5-020740 Sy1 00 38 20.52934376 -02 07 40.5469964   19.04 18.02 17.6   ~ 255 1
2 NGC 193 rG 00 39 18.5878961880 +03 19 52.605787764   14.3       ~ 149 1
3 3C 20 Sy2 00 43 09.18053760 +52 03 36.1486440   19.0       ~ 221 1
4 LEDA 2702 Sy2 00 46 17.7417441048 -42 07 51.432348432   17   15.78   ~ 93 0
5 8C 0052+681 Sy2 00 56 01.122 +68 22 29.53           ~ 74 1
6 Z 384-48 rG 00 57 34.90446247 -01 23 27.5469897   14.07 15.10     ~ 269 1
7 NGC 315 LIN 00 57 48.88334410 +30 21 08.8119345 12.80 12.20 11.16 11.26   ~ 869 2
8 NGC 383 AGN 01 07 24.9647814840 +32 24 45.132586200   13.6 12.14     ~ 821 3
9 2C 92 Sy2 01 08 16.9314 -16 04 21.477     20     ~ 73 1
10 2C 94 Sy2 01 08 52.8701830824 +13 20 14.262799812   15.19       ~ 494 2
11 NGC 547 rG 01 26 00.6208982520 -01 20 42.432452268   13.16 13.34     ~ 363 4
12 NGC 612 Sy2 01 33 57.751 -36 29 35.80   13.90 13.15 12.33   ~ 252 0
13 NGC 741 rG 01 56 23.2 +05 37 35   13.2       ~ 309 2
14 3C 62 Sy2 02 15 37.4257228872 -12 59 30.243550020     18.0     ~ 112 1
15 3C 66A BLL 02 22 39.6114771888 +43 02 07.799534304   15.71 15.21 14.5   ~ 942 2
16 Z 538-57 Sy1 02 23 11.41124925 +42 59 31.3853324   15.71 14.81     ~ 582 2
17 3C 61.1 Sy2 02 23 13.4857575951 +86 19 13.422392083     19.0     ~ 210 1
18 7C 022118.10+273638.00 Sy1 02 24 12.2865158736 +27 50 11.538285648   19.502 18 18.263   ~ 210 1
19 2EG J0239+2818 gam 02 40 +28.3           ~ 15 1
20 M 77 Sy2 02 42 40.7091669408 -00 00 47.859690204 9.70 9.61 8.87 10.1 9.9 ~ 4897 2
21 3C 75 PaG 02 57 41.64 +06 01 28.0           ~ 312 1
22 NGC 1167 LIN 03 01 42.3322774176 +35 12 20.300948892   13.84 12.77     ~ 382 1
23 MCG+06-07-034 rG 03 01 51.4 +35 50 23           ~ 179 1
24 NGC 1233 GiG 03 12 33.1051354128 +39 19 08.081207976   13.9       ~ 54 1
25 NGC 1265 rG 03 18 15.674 +41 51 27.94   14.7       ~ 386 2
26 NGC 1275 Bla 03 19 48.1599902040 +41 30 42.108850836   13.10 12.48 11.09   ~ 4243 3
27 NGC 1316 rG 03 22 41.789 -37 12 29.52 9.81 9.15 8.53 7.66   ~ 1491 1
28 2EG J0323+5126 gam 03 24 +51.4           ~ 12 0
29 NVSS J032719+552029 BLL 03 27 19.27584 +55 20 28.4640           ~ 71 1
30 Z 390-93 QSO 03 27 54.19499480 +02 33 41.9824262   13.95       ~ 230 1
31 LEDA 13982 Sy2 03 51 35.7643720392 -27 44 34.896912468   16.0       ~ 157 1
32 3C 105.0 Sy2 04 07 16.4671273272 +03 42 25.813809432   18.5       ~ 241 0
33 PKS 0409-75 rG 04 08 48.66331 -75 07 20.6247   21.40 21.7     ~ 84 1
34 4C 76.03 rG 04 10 45.61079426 +76 56 45.3130641   21 22.0 21.200   ~ 164 1
35 NGC 1566 Sy1 04 20 00.3968473248 -54 56 16.624708764 10.29 10.19 9.73 9.21 10.1 ~ 1051 2
36 2EG J0426+1636 gam 04 23 56.5 +16 56 27           ~ 15 1
37 PKS 0428+205 rG 04 31 03.76141386 +20 37 34.2648470   22.174   19.085   ~ 198 1
38 2C 396 QSO 04 32 36.50262174 +41 38 28.4497778     20.0     ~ 231 1
39 RX J0433.6+2906 BLL 04 33 37.82985981 +29 05 55.4770576   19.0 17.80 17.06   ~ 181 1
40 NAME Per B SyG 04 37 04.37535450 +29 40 13.8179631   21.7       ~ 533 2
41 LEDA 745026 Sy2 04 44 37.7077672896 -28 09 54.445127796   18.5       ~ 104 1
42 NGC 1667 Sy2 04 48 37.1804579280 -06 19 11.824427712   13.66 12.86 11.72   ~ 384 2
43 3C 129 rG 04 49 09.064 +45 00 39.40   19       ~ 273 2
44 ICRF J050258.4+251625 Sy2 05 02 58.47476282 +25 16 25.2757175   20       ~ 187 1
45 2EG J0521+2206 gam 05 22 +21.8           ~ 14 0
46 M 1 SNR 05 34 31.8 +22 01 03           ~ 6516 1
47 V* CM Tau Psr 05 34 31.9474694616 +22 00 52.153698024           ~ 5476 0
48 PKS 0531+19 rG 05 34 44.51221055 +19 27 21.4860450   17.7       ~ 57 1
49 PSR J0614-3329 Psr 06 14 10.3479 -33 29 54.116           ~ 134 1
50 ESO 161-7 IG 06 26 21.49 -53 41 09.2   14.48 15.4 15.16   ~ 77 2
51 QSO B0625-354 BLL 06 27 06.7286533392 -35 29 15.363665088   14.93       ~ 206 1
52 LEDA 19313 Sy2 06 36 32.2509554376 -20 34 53.181243300   18.27 17.58     ~ 139 2
53 NGC 2273 Sy1 06 50 08.6691789600 +60 50 44.864645136   14.50 13.54     ~ 566 2
54 NGC 2329 rG 07 09 08.0049393360 +48 36 55.726108020   13.7 13.99     ~ 143 3
55 6C 073840+545153 BLL 07 42 39.79069953 +54 44 24.6671050     16.90     ~ 138 1
56 QSO B0742+103 Bla 07 45 33.05952486 +10 11 12.6922178     24.00 23.72   ~ 200 1
57 4C 56.16 rG 07 49 48.077 +55 54 19.45           ~ 176 1
58 3C 195 Sy1 08 08 53.6297647896 -10 27 39.744541656   17.14 18 15.76   ~ 112 1
59 2EG J0812-0648 gam 08 13 -06.8           ~ 20 1
60 4C 55.16 Bla 08 34 54.90398776 +55 34 21.0703409   20.75 19.45 17.180   ~ 297 2
61 NGC 2639 Sy2 08 43 38.0682469032 +50 12 19.942091604 12.90 12.56 11.65     ~ 451 2
62 NGC 2655 Sy2 08 55 37.731 +78 13 23.10   12.03 11.08     ~ 318 2
63 4C 73.08 Sy2 09 49 45.967 +73 14 23.25   16.00   11.7   ~ 127 0
64 M 81 Sy2 09 55 33.1726556496 +69 03 55.062505368   7.89 6.94     ~ 4725 3
65 NGC 3079 Sy2 10 01 57.8789863992 +55 40 47.449758324 11.57 11.54 10.86     ~ 1476 3
66 NGC 3147 Sy2 10 16 53.6388580752 +73 24 02.641798224   11.43 10.61     ~ 533 2
67 NGC 3227 Sy1 10 23 30.5765149296 +19 51 54.282206700   12.61 11.79     ~ 1807 2
68 NGC 3516 Sy1 11 06 47.4632200800 +72 34 07.298374656   13.12 12.40     ~ 1638 0
69 NGC 3783 Sy1 11 39 01.7096819040 -37 44 19.009642992   12.46 13.43 11.33 12.1 ~ 1765 1
70 NGC 3801 LIN 11 40 16.9446846648 +17 43 40.575768960   13.3       ~ 214 1
71 NGC 3862 Sy2 11 45 05.00904503 +19 36 22.7409909   14.98 13.97     ~ 646 1
72 3C 268.1 rG 12 00 20.53 +73 00 45.7   22       ~ 149 1
73 NGC 4051 Sy1 12 03 09.6101337312 +44 31 52.682601288   11.08 12.92 9.94   ~ 2270 1
74 NGC 4138 Sy2 12 09 29.8011417048 +43 41 06.864140004 12.46 12.29 11.32 10.82   ~ 436 1
75 NGC 4151 Sy1 12 10 32.5759813872 +39 24 21.063527532   12.18 11.48     ~ 3938 2
76 NGC 4203 LIN 12 15 05.0549203560 +33 11 50.383965120   12.98 11.99     ~ 514 2
77 NGC 4235 Sy1 12 17 09.8818997904 +07 11 29.673389004   14.70 13.60     ~ 441 0
78 M 106 Sy2 12 18 57.620 +47 18 13.39   9.14 8.41 8.11   ~ 2512 4
79 NGC 4261 LIN 12 19 23.2160630 +05 49 29.700024   13.92 12.87     ~ 1290 0
80 GRO J1220+046 gam 12 20 +04.6           ~ 1 0
81 4C 04.42 Bla 12 22 22.54962606 +04 13 15.7760715   17.88 17.98 17.06   ~ 354 1
82 M 84 Sy2 12 25 03.74333 +12 53 13.1393 12.67 12.09 10.49     ~ 1841 2
83 NGC 4388 Sy2 12 25 46.820 +12 39 43.45 11.91 11.76 11.02     ~ 1433 2
84 NGC 4395 Sy2 12 25 48.8633109888 +33 32 48.700168152 10.84 10.54 10.11 9.98   ~ 1286 1
85 3C 273 BLL 12 29 06.6998257176 +02 03 08.597629980   13.05 14.830 14.11   ~ 6022 1
86 M 49 Sy2 12 29 46.8 +08 00 01   13.21 12.17     ~ 2174 2
87 3EG J1235+0233 gam 12 35 +02.6           ~ 12 0
88 NGC 4565 Sy2 12 36 20.804 +25 59 14.61   13.61 12.43     ~ 991 0
89 [VV2006] J123932.7+044305 Bla 12 39 32.75568115 +04 43 05.2330218   20.81 20.56 18.1   ~ 191 2
90 QSO B1245-197 QSO 12 48 23.89808243 -19 59 18.5899475   21.52 20.5     ~ 145 1
91 NGC 4696 rG 12 48 49.2724775784 -41 18 39.304053252   11.21   10.7   ~ 510 3
92 3C 277.3 BLL 12 54 12.0071453880 +27 37 33.952663740   15.94       ~ 379 1
93 3C 278 QSO 12 54 36.96 -12 33 31.8     11.6     ~ 125 3
94 3C 279 Bla 12 56 11.16657958 -05 47 21.5251510   18.01 17.75 15.87   ~ 3205 2
95 1RXS J130421.2-435308 BLL 13 04 21.0058097184 -43 53 10.199729472 16.09 15.84 15.71     ~ 72 1
96 NGC 5033 Sy2 13 13 27.535 +36 35 37.14   11.01 12.03 9.73   ~ 909 1
97 QSO B1313-333 Bla 13 16 07.98594757 -33 38 59.1726741   18.04 20.0 17.23   ~ 267 1
98 NGC 5090 rG 13 21 12.84471811 -43 42 16.8452073   12.59 11.51 10.84   ~ 208 1
99 NGC 5141 Sy2 13 24 51.44109717 +36 22 42.7725745   13.9       ~ 192 1
100 NAME Centaurus A BLL 13 25 27.61521044 -43 01 08.8050291   8.18 6.84 6.66   ~ 4774 3
101 4C 32.44 QSO 13 26 16.5142 +31 54 09.522   21.367 19.822 18.882   ~ 181 1
102 M 51 Sy2 13 29 52.698 +47 11 42.93   9.26 8.36 8.40   ~ 4565 4
103 3EG J1329-4602 gam 13 30 -46.0           ~ 5 0
104 IC 4296 rG 13 36 39.03253319 -33 57 57.0730368   11.52 12.99 10.00 10.79 ~ 520 2
105 NGC 5490 GiG 14 09 57.330 +17 32 43.53   13.4 15.5     ~ 178 1
106 3C 295 Sy1 14 11 20.6 +52 12 09   22.34 20.80 18.54   ~ 1021 4
107 NGC 5532 LIN 14 16 52.9370483073 +10 48 26.616631120   13.3 12.59     ~ 364 2
108 ICRF J144302.7+520137 Sy1 14 43 02.76069031 +52 01 37.2985156   18.96 18.29     ~ 316 3
109 3C 327.1 Sy1 16 04 45.4065607140 +01 17 50.317968747   20.5       ~ 138 1
110 NAME 3C 330G2 Sy2 16 09 34.92456720 +65 56 37.8351240   20.33       ~ 280 1
111 ESO 137-6 rG 16 15 03.864 -60 54 26.14   13.08 12.83 11.33   ~ 119 0
112 NGC 6251 Bla 16 32 31.96989253 +82 32 16.3999044 15.24 14.66 12.89 7.62   ~ 772 1
113 PKS 1637-77 rG 16 44 16.1207820000 -77 15 48.822593256   15.30 15.5 14.75   ~ 86 1
114 MCG+01-43-006 SyG 16 51 07.9886687784 +04 59 35.547131472     18.25     ~ 502 1
115 ICRF J170336.5-621240 BLL 17 03 36.54121471 -62 12 40.0085591   18.73   17.58   ~ 111 1
116 3EG J1719-0430 Bz? 17 20 23 -04 28.4           ~ 13 0
117 4C -00.67 Sy2 17 20 28.1680537512 -00 58 46.582453920   15.36       ~ 345 1
118 NGC 6328 QSO 17 23 41.02933859 -65 00 36.6106377   13.17 13.2 11.45 12.2 ~ 270 1
119 PKS 1740-51 rG 17 44 25.45488279 -51 44 43.7403710     20.2     ~ 99 2
120 Z 114-25 rG 18 38 26.25747 +17 11 49.6210           ~ 205 2
121 NGC 6764 LIN 19 08 16.4036066688 +50 55 59.519979084   15.00 14.32     ~ 307 1
122 3EG J1940-0121 gam 19 41 -01.4           ~ 8 0
123 NGC 6814 Sy1 19 42 40.5862186152 -10 19 25.108718844   15.33 14.21 11.7 11.3 ~ 866 0
124 3C 403.0 Sy2 19 52 15.7996999344 +02 30 24.238200816   15.42 16.5     ~ 353 1
125 LEDA 63899 EmG 19 58 29.1197853864 -55 09 12.876222276   16.5       ~ 63 0
126 PSR J1958+2846 Psr 19 58 40.1015582448 +28 45 54.108736344           ~ 81 0
127 MCG+07-41-003 Bla 19 59 28.35656837 +40 44 02.0972325   16.22 15.10     ~ 2537 2
128 3C 410 QSO 20 20 06.5632764672 +29 42 14.180763312   19.5       ~ 125 0
129 GRO J2019+40 gam 20 21.5 +40 26           ~ 131 1
130 PSR J2021+4026 Psr 20 21 30.496 +40 26 53.56           ~ 300 2
131 3EG J2022+4317 gam 20 22 +43.3           ~ 20 0
132 NGC 6951 Sy2 20 37 14.1228088488 +66 06 20.049916392   11.64 10.65     ~ 553 2
133 3C 418.0 Bla 20 38 37.03472279 +51 19 12.6624988   21.30 21.00 18.9   ~ 333 1
134 3EG J2100+6012 gam 21 01 +60.2           ~ 9 1
135 NGC 6998 rG 21 01 37.712 -28 01 54.35   15.21 15.6 13.61   ~ 96 1
136 NGC 7018 IG 21 07 25.7 -25 25 46   14.37 16.8     ~ 76 0
137 3C 430 QSO 21 18 19.0965352800 +60 48 07.351475472   15       ~ 114 1
138 3C 433.0 Sy2 21 23 44.5778423928 +25 04 27.670672416   17.660 16.350     ~ 338 1
139 3C 444 rG 22 14 25.752 -17 01 36.29     17.8     ~ 171 1
140 Z 514-50 SyG 22 31 20.5885689288 +39 21 29.593072404   14.6       ~ 446 1
141 NGC 7626 rG 23 20 42.524 +08 13 01.43   12.8       ~ 438 1
142 NGC 7720 Sy1 23 38 29.38324020 +27 01 53.2580084   13.9 13.3     ~ 565 4
143 NGC 7743 Sy2 23 44 21.1607807112 +09 56 02.970989664   14.19 13.28     ~ 334 0
144 LEDA 73132 Sy2 23 59 04.31090 -60 54 59.2180   16.61       ~ 155 1

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