2001ApJ...548..639K

Query : 2001ApJ...548..639K

2001ApJ...548..639K - Astrophys. J., 548, 639-651 (2001/February-3)

Radio halo and relic candidates from the Westerbork northern sky survey.

KEMPNER J.C. and SARAZIN C.L.

Abstract (from CDS):

We have undertaken a systematic search for diffuse radio halos and relics in all of the Abell clusters that are visible in the Westerbork Northern Sky Survey. In this survey we found 18 candidates, 11 of which are already known from the literature and seven for which we provide the first evidence of diffuse radio emission. All the clusters in this sample show other evidence for a recent or ongoing merger. We also investigate the correlation between cluster X-ray luminosity and radio power of halos. We develop a very simple model for merger shocks that reproduce the sense of this correlation, although it is probably not as steep as the correlation in the data. We discuss the implications of X-ray-radio correlations for future detections of radio halos.

Abstract Copyright: ∼

Journal keyword(s): ISM: Cosmic Rays - Galaxies: Clusters: General - Galaxies: Intergalactic Medium - Magnetic Fields - Radio Continuum: Galaxies - X-Rays: General

Nomenclature: Table 2: [KS2001] JHHMMSS+DDMM N=19.

Simbad objects: 37

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Number of rows : 37
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 ACO 665 ClG 08 30 45.2 +65 52 55           ~ 437 0
2 [KS2001] J083058+6550 Rad 08 31.0 +65 50           ~ 1 0
3 [KS2001] J084256+3622 Rad 08 42.9 +36 22           ~ 1 0
4 ACO 697 ClG 08 42 57.6 +36 21 45           ~ 253 0
5 ACO 725 ClG 09 01 10.10 +62 37 19.7           ~ 28 0
6 [KS2001] J090129+6238 Rad 09 01.5 +62 38           ~ 1 0
7 ACO 773 ClG 09 17 51.3 +51 43 20           ~ 295 0
8 [KS2001] J091804+5142 Rad 09 18.1 +51 42           ~ 1 0
9 [KS2001] J092216+7500 Rad 09 22.3 +75 00           ~ 1 0
10 Rood 27 ClG 09 25.7 +74 31           ~ 9 0
11 [KS2001] J092738+6023 Rad 09 27.6 +60 23           ~ 1 0
12 ACO 796 ClG 09 27 59 +60 23.9           ~ 10 0
13 ACO 786 ClG 09 28 04.9 +74 46 58           ~ 43 0
14 [KS2001] J112328+4310 Rad 11 23.5 +43 10           ~ 1 0
15 ACO 1240 ClG 11 23 37.7 +43 03 28           ~ 98 0
16 [KS2001] J112347+4301 Rad 11 23.8 +43 01           ~ 1 0
17 [KS2001] J120318+5145 Rad 12 03.3 +51 45           ~ 1 0
18 ACO 1452 ClG 12 03 32.23 +51 43 34.9           ~ 77 0
19 ACO 1758 ClG 13 32 32.1 +50 30 37           ~ 251 2
20 [KS2001] J133244+5032 Rad 13 32.7 +50 32           ~ 1 0
21 [KS2001] J142558+3748 Rad 14 26.0 +37 48           ~ 1 0
22 ACO 1914 ClG 14 26 03.32 +37 49 58.7           ~ 314 0
23 ACO 2034 ClG 15 10 12.96 +33 29 53.2           ~ 215 1
24 [KS2001] J151017+3331 Rad 15 10.3 +33 31           ~ 1 0
25 [KS2001] J152006+3029 Rad 15 20.1 +30 29           ~ 1 0
26 ACO 2061 ClG 15 21 19.90 +30 37 13.0           ~ 191 1
27 [KS2001] J163546+6612 Rad 16 35.8 +66 12           ~ 1 0
28 ACO 2218 ClG 16 35 54.0 +66 13 00           ~ 809 1
29 [KS2001] J164011+4644 Rad 16 40.2 +46 44           ~ 1 0
30 ACO 2219 ClG 16 40 22.1 +46 42 20           ~ 359 0
31 [KS2001] J170257+7843 Rad 17 03.0 +78 43           ~ 1 0
32 ACO 2256 ClG 17 03 09.4 +78 39 36           ~ 885 1
33 [KS2001] J170446+7839 Rad 17 04.8 +78 39           ~ 1 0
34 ACO 2255 ClG 17 12 50.04 +64 03 10.6           ~ 568 0
35 [KS2001] J171254+6404 Rad 17 12.9 +64 04           ~ 1 0
36 ACO 2319 ClG 19 20 45.3 +43 57 43           ~ 461 1
37 [KS2001] J192111+4356 Rad 19 21.2 +43 56           ~ 1 0

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