2001A&A...373..106F


C.D.S. - SIMBAD4 rel 1.7 - 2020.10.23CEST01:13:05

2001A&A...373..106F - Astronomy and Astrophysics, volume 373, 106-112 (2001/7-1)

The giant radio halo in Abell 2163.

FERETTI L., FUSCO-FEMIANO R., GIOVANNINI G. and GOVONI F.

Abstract (from CDS):

New radio data is presented for the rich cluster Abell 2163. The cluster radio emission is characterized by the presence of a radio halo, which is one of the most powerful and extended halos known so far. In the NE peripheral cluster region, we also detect diffuse elongated emission, which we classify as a cluster relic. The cluster A2163 is very hot and luminous in X-ray. Its central region is probably in a highly non relaxed state, suggesting that this cluster is likely to be a recent merger. The existence of a radio halo in this cluster confirms that halos are associated with hot massive clusters, and confirms the connection between radio halos and cluster merger processes. The comparison between the radio emission of the halo and the cluster X-ray emission shows a close structural similarity. A power law correlation is found between the radio and X-ray brightness, with index =0.64. We also report the upper limit to the hard X-ray emission, obtained from a BeppoSAX observation. We discuss the implications of our results.

Abstract Copyright:

Journal keyword(s): radio continuum: general - galaxies: clusters: general - galaxies: clusters: individual: A2163 - intergalactic medium - X-rays: galaxies: clusters

Nomenclature: Fig.2: [FFG2001] DN (Nos D1-D4). Fig.2, Table 3: [FFG2001] TN (Nos T1-T3) = [FFG2001] JHHMM+DDd N=3. p.107: [FFG2001] JHHMMSS.s+DDMMSS N=1.

Simbad objects: 16

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Number of rows : 16

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 ACO 2744 ClG 00 14 20.03 -30 23 17.8           ~ 582 0
2 NAME Coma Relic Rad 12 55 +27.2           ~ 53 0
3 NAME Coma C Rad 12 59.3 +27 47           ~ 53 1
4 ACO 1656 ClG 12 59 48.7 +27 58 50           ~ 4266 2
5 ACO 2163 ClG 16 15 34.1 -06 07 26           ~ 521 0
6 [FFG2001] T1 rG 16 15 40.68 -06 13 48.0           ~ 4 0
7 2MASX J16154140-0609076 rG 16 15 41.404 -06 09 07.65           ~ 5 0
8 [FFG2001] T3 rG 16 16 05.6 -06 14 56           ~ 3 0
9 2MASX J16162228-0606338 GiC 16 16 22.284 -06 06 33.84           ~ 3 0
10 ACO 2256 ClG 17 03 43.5 +78 43 03           ~ 832 1
11 ACO 2255 ClG 17 12 50.04 +64 03 10.6           ~ 504 0
12 ACO 2319 ClG 19 20 45.3 +43 57 43           ~ 417 1
13 [FFG2001] D1 G ~ ~           ~ 2 0
14 [FFG2001] D4 Rad ~ ~           ~ 2 0
15 [FFG2001] D3 Rad ~ ~           ~ 2 0
16 [FFG2001] D2 Rad ~ ~           ~ 1 0

    Equat.    Gal    SGal    Ecl

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2020.10.23-01:13:05

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