2006MNRAS.368..544F


C.D.S. - SIMBAD4 rel 1.7 - 2020.03.31CEST15:30:27

2006MNRAS.368..544F - Mon. Not. R. Astron. Soc., 368, 544-552 (2006/May-2)

Diffuse radio sources in the cluster of galaxies Abell 548b.

FERETTI L., BACCHI M., SLEE O.B., GIOVANNINI G., GOVONI F., ANDERNACH H. and TSAREVSKY G.

Abstract (from CDS):

We report extensive Very Large Array (VLA) and Australia Telescope Compact Array (ATCA) observations of the two diffuse radio sources in the cluster of galaxies Abell 548b, which confirm their classification as relics. The two relics (named A and B) show similar flux density, extent, shape, polarization and spectral index and are located at projected distances of about 430 and 500kpc from the cluster centre, on the same side of the cluster's X-ray peak. On the basis of spectral indices of discrete radio sources embedded within the diffuse features, we have attempted to distinguish emission peaks of the diffuse sources from unrelated sources. We have found that both relics, in particular the B relic, show possible fine structure, when observed at high resolution. Another diffuse source (named C) is detected close in projection to the cluster centre. High-resolution images show that it contains two discrete radio sources and a diffuse component, which might be a candidate for a small relic source. The nature and properties of the diffuse radio sources are discussed. We conclude that they are likely related to the merger activity in the cluster.

Abstract Copyright: 2006 The Authors. Journal compilation © 2006 RAS

Journal keyword(s): galaxies: clusters: general - galaxies: clusters: individual: A548b - diffuse radiation - radio continuum: general

Nomenclature: Fig.1, Table 2: [FBS2006] A (Nos A-C). Table 3: [FBS2006] NNa (Nos 1-12, 7a-7c).

Status at CDS:  

Simbad objects: 31

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Number of rows : 31

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 13 ClG 00 13 38.5 -19 30 19           ~ 91 1
2 ACO 85 ClG 00 41 37.8 -09 20 33           ~ 778 0
3 ACO 133 ClG 01 02 39.0 -21 57 15           ~ 328 1
4 3C 48 QSO 01 37 41.2995845985 +33 09 35.079126038   16.62 16.20     ~ 2469 2
5 ICRF J052109.8+163822 Sy1 05 21 09.88592749 +16 38 22.0517668   19.37 18.84 18.480   ~ 731 1
6 QSO B0528-2505 QSO 05 30 07.96279681 -25 03 29.8994010   18.17 17.34 17.7   ~ 388 0
7 [FBS2006] 1 Rad 05 44 43.16 -25 49 51.5           ~ 1 0
8 [FBS2006] 2 Rad 05 44 49.59 -25 49 28.1           ~ 1 0
9 [FBS2006] 3 Rad 05 44 49.59 -25 49 10.0           ~ 1 0
10 [FBS2006] 4 Rad 05 44 49.70 -25 52 17.6           ~ 1 0
11 [FBS2006] A Rad 05 44 50.0 -25 51 00           ~ 2 0
12 [FBS2006] 5 Rad 05 45 00.60 -25 51 38.5           ~ 1 0
13 2MASX J05450494-2547400 GiC 05 45 04.9317454769 -25 47 40.393889862   14   14.57   ~ 15 0
14 [FBS2006] 8 Rad 05 45 19.61 -25 47 59.2           ~ 1 0
15 [FBS2006] 7a Rad 05 45 20.76 -25 55 54.5           ~ 1 0
16 [FBS2006] B Rad 05 45 22.0 -25 47 30           ~ 4 0
17 ESO 488-6 LIN 05 45 22.0987459036 -25 47 29.805039420   14.71   13.34   ~ 25 0
18 [FBS2006] 7b Rad 05 45 25.79 -25 55 16.0           ~ 1 0
19 [FBS2006] C Rad 05 45 26.0 -25 55 16           ~ 2 0
20 [FBS2006] 7c Rad 05 45 27.47 -25 55 09.6           ~ 1 0
21 2MASXI J0545274-255509 GiC 05 45 27.4802202952 -25 55 09.466969273   15       ~ 3 0
22 ESO 488-7 GiC 05 45 27.601 -25 55 50.53   13.89   12.44   ~ 18 0
23 ESO 488-8 GiC 05 45 28.56 -25 55 53.3   14.14   12.87   ~ 7 0
24 ESO 488-9 BiC 05 45 29.5 -25 55 57   14.11       ~ 21 0
25 [FBS2006] 12 Rad 05 45 30.91 -25 48 07.1           ~ 1 0
26 ACO 548 ClG 05 47 01.7 -25 36 59           B8 194 2
27 QSO B0606-223 QSO 06 08 59.68683826 -22 20 20.9566813   21.14 20.0 20.5   ~ 58 1
28 ICRF J193925.0-634245 Sy2 19 39 25.02671 -63 42 45.6255   18.87 18.37 17.64   ~ 941 1
29 ACO 4038 ClG 23 47 31.1 -28 12 10           ~ 309 3
30 [FBS2006] 10 Rad ~ ~           ~ 1 0
31 [FBS2006] 9 Rad ~ ~           ~ 1 0

    Equat.    Gal    SGal    Ecl

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2020.03.31-15:30:27

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