2003ApJ...588..155R

Query : 2003ApJ...588..155R

2003ApJ...588..155R - Astrophys. J., 588, 155-164 (2003/May-1)

EGRET upper limits on the high-energy gamma-ray emission of galaxy clusters.

REIMER O., POHL M., SREEKUMAR P. and MATTOX J.R.

Abstract (from CDS):

We report EGRET upper limits on the high-energy gamma-ray emission from clusters of galaxies. EGRET observations between 1991 and 2000 were analyzed at positions of 58 individual clusters from a flux-limited sample of nearby X-ray-bright galaxy clusters. Subsequently, a co-added image from individual galaxy clusters has been analyzed using an adequately adapted diffuse gamma-ray foreground model. The resulting upper 2 σ limit for the average cluster is ∼6x10–9 cm–2 s–1 for E>100 MeV. Implications of the nondetection of prominent individual clusters and of the general inability to detect the X-ray-brightest galaxy clusters as a class of gamma-ray emitters are discussed. We compare our results with model predictions on the high-energy gamma-ray emission from galaxy clusters as well as with recent claims of an association between unidentified or unresolved gamma-ray sources and Abell clusters of galaxies and find these contradictory.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Clusters: General - Gamma Rays: Observations - X-Rays: Galaxies: Clusters

Simbad objects: 67

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Number of rows : 67
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 [VV2006] J003906.3-094247 QSO 00 39 06.29166353 -09 42 46.8896508   21.40 20.87     ~ 62 1
2 ACO 85 ClG 00 41 36.21 -09 19 30.4           ~ 974 0
3 ACO 119 ClG 00 56 08.57 -01 12 00.8           ~ 577 2
4 ACO 262 ClG 01 52 50.4 +36 08 46           ~ 727 1
5 2A 0251+413 ClG 02 54 26.6 +41 33 25           ~ 328 1
6 ACO 400 ClG 02 57 37.4 +06 00 45           ~ 408 3
7 ACO 399 ClG 02 57 56.4 +13 00 59           ~ 420 0
8 ACO 401 ClG 02 58 50.3 +13 34 07           ~ 592 0
9 ACO 3112 ClG 03 17 52.9 -44 15 06           ~ 329 1
10 ACO 426 ClG 03 19 47.6 +41 30 54           ~ 2508 1
11 ACO S 373 ClG 03 38 29.4 -35 27 08           ~ 2029 0
12 ZwCl 0335+0956 ClG 03 38 35.3 +09 57 54           ~ 402 1
13 ACO 3158 ClG 03 43 07.5 -53 38 09           ~ 327 0
14 ACO 478 ClG 04 13 24.8 +10 27 52           ~ 522 0
15 ACO 3266 ClG 04 31 26.4 -61 25 17           ~ 447 0
16 ACO 496 ClG 04 33 40.8 -13 14 34           ~ 728 2
17 RXC J0450.0+4501 ClG 04 50 13.9 +45 03 17           ~ 45 1
18 ACO 3395 ClG 06 27 31.1 -54 23 58           ~ 229 0
19 ACO 576 ClG 07 21 24.1 +55 44 20           ~ 312 1
20 PKS 0745-19 rG 07 47 31.3247085936 -19 17 40.013334276   19.60       ~ 422 1
21 ClG 0745-1910 ClG 07 47 32.4 -19 18 23           ~ 378 0
22 2EG J0812-0648 gam 08 13 -06.8           ~ 20 1
23 ACO 644 ClG 08 17 26.1 -07 31 13           ~ 241 0
24 ACO 754 ClG 09 09 14.8 -09 40 35           ~ 695 1
25 ACO 780 ClG 09 18 30 -12 15.7           ~ 469 0
26 NAME Hydra I Cluster ClG 10 36 36.0 -27 31 04           ~ 905 1
27 ACO 1367 ClG 11 44 44.6 +19 41 59           ~ 1127 1
28 NAME Virgo Cluster ClG 12 30 47.8 +12 23 07           ~ 7107 0
29 ACO 3526 ClG 12 48 49.2 -41 18 17           ~ 1154 2
30 3C 279 Bla 12 56 11.16657958 -05 47 21.5251510   18.01 17.75 15.87   ~ 3205 2
31 ACO 1644 ClG 12 57 11.6 -17 24 34           ~ 391 1
32 ACO 3532 ClG 12 57 19.2 -30 22 13           ~ 185 2
33 ACO 1650 ClG 12 58 42.0 -01 45 45           ~ 325 0
34 ACO 1651 ClG 12 59 27.3 -04 10 49           ~ 307 0
35 ACO 1656 ClG 12 59 44.40 +27 54 44.9           ~ 5141 2
36 ACO 1689 ClG 13 11 29.5 -01 20 28           ~ 1178 0
37 ACO 1736 ClG 13 26 52.1 -27 06 33           ~ 268 2
38 ACO 3558 ClG 13 28 03.2 -31 31 35           ~ 476 2
39 ACO 3562 ClG 13 33 31.8 -31 40 23           ~ 337 1
40 ACO 1775 ClG 13 41 50.60 +26 21 10.6           ~ 324 0
41 2EG J1346+2942 gam 13 47 12.0 +29 32 24           ~ 21 0
42 ACO 3571 ClG 13 47 32.4 -32 50 12           ~ 308 2
43 ACO 1795 ClG 13 48 47.4 +26 34 55           ~ 1330 0
44 ACO 1989 ClG 14 54 23 +05 41.8           ~ 5 0
45 ACO 2029 ClG 15 10 54.2 +05 44 23           ~ 1020 0
46 ACO 2052 ClG 15 16 41.64 +07 01 45.5           ~ 756 1
47 ACT-CL J1521.8+0742 ClG 15 21 48.8 +07 43 41     15.13     ~ 326 0
48 ACO 2065 ClG 15 22 22.7 +27 44 20           ~ 398 0
49 ACO 2063 ClG 15 23 01.8 +08 38 22           ~ 414 2
50 ACO 2142 ClG 15 58 26.5 +27 13 52           ~ 825 0
51 ACO 2147 ClG 16 02 11.96 +15 55 11.5           ~ 416 0
52 4C 15.54 BLL 16 07 06.43046256 +15 51 34.4855829   20.15 19.49 17.5   ~ 181 2
53 ACO 2199 ClG 16 28 34.5 +39 32 26           ~ 1206 1
54 ACO 2204 ClG 16 32 47.7 +05 34 18           ~ 457 0
55 4C 38.41 Bla 16 35 15.49297809 +38 08 04.5005995   18.14 17.97 17.25   ~ 906 1
56 BAX 249.5848-64.5165 ClG 16 38 13.2 -64 21 21           ~ 123 0
57 ACO 2244 ClG 17 02 40.33 +34 02 58.7           ~ 301 0
58 ACO 2256 ClG 17 03 37.5 +78 37 23           ~ 928 1
59 BAX 258.1082-23.3759 ClG 17 12 26.3 -23 21 38           ~ 303 0
60 ACO 2255 ClG 17 12 56.0 +64 04 06           ~ 605 0
61 ACO 2319 ClG 19 21 14.0 +43 56 57           ~ 495 1
62 BAX 299.8681+40.7339 ClG 19 59 30.3 +40 44 11           ~ 143 0
63 ACO 3667 ClG 20 12 33.68 -56 50 26.3           ~ 676 1
64 ACO 2597 ClG 23 25 19.70 -12 07 27.7           ~ 572 0
65 ACO 2657 ClG 23 44 51.0 +09 08 40           ~ 280 3
66 ACO 4038 ClG 23 47 31.1 -28 12 10           ~ 349 3
67 ACO 4059 ClG 23 57 02.2 -34 45 58           ~ 400 1

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