2001A&A...379..807G


C.D.S. - SIMBAD4 rel 1.7 - 2020.06.04CEST23:09:20

2001A&A...379..807G - Astronomy and Astrophysics, volume 379, 807-822 (2001/12-1)

Radio galaxies and magnetic fields in A514.

GOVONI F., TAYLOR G.B., DALLACASA D., FERETTI L. and GIOVANNINI G.

Abstract (from CDS):

A514 contains six extended and polarized radio sources located at various projected distances from the cluster center. Here we present a detailed study of these six radio sources in total intensity and polarization using the Very Large Array at 3.6 and 6 cm. Since the radio sources sample different lines of sight across the cluster, an analysis of the Faraday Rotation Measures (RMs) provides information on the strength and the structure of the cluster magnetic field. These sources show a decreasing Faraday Rotation Measure with increasing distance from the cluster center. We estimate the strength of the magnetic field to be ∼3-7µG in the cluster center. From the RM structure across the stronger and more extended sources we estimate the coherence length of the magnetic field to be about 9 kpc at the cluster center.

Abstract Copyright:

Journal keyword(s): galaxies: clusters: general - intergalactic medium - magnetic fields - radio continuum: general

Nomenclature: Table 1: [GTD2001] AN (Nos A, B1-B2, C-E) = [GTD2001] JHHMM+DDMM N=6.

Status at CDS:  

Simbad objects: 13

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Number of rows : 13

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 119 ClG 00 56 16.8 -01 15 00           ~ 514 2
2 [OWG93] ACO 0514-F GiC 04 47 13.11 -20 14 01.0     18.5     ~ 9 1
3 ACO 514 ClG 04 47 40.0 -20 25 44           ~ 135 0
4 2MASX J04480299-2026384 rG 04 48 02.997 -20 26 38.44   16.93   15.49   ~ 11 0
5 2MASX J04481046-2024574 GiC 04 48 10.4468626772 -20 24 57.104928869   16.99   15.38   ~ 17 0
6 [GTD2001] C rG 04 48 21.7 -20 04 48           ~ 2 0
7 PKS 0446-206 rG 04 48 30.588 -20 32 13.85   16.86   15.36   ~ 30 1
8 QSO B0446-208 QSO 04 48 58.8150873856 -20 44 46.011013874     17     ~ 46 0
9 [GTD2001] E rG 04 48 59.0 -20 44 51           ~ 2 0
10 3C 129 rG 04 49 09.064 +45 00 39.40   19       ~ 243 2
11 NAME Hya A LIN 09 18 05.651 -12 05 43.99   14.38 14.8     ~ 902 1
12 NAME Coma C Rad 12 59.3 +27 47           ~ 50 1
13 3C 295 Sy2 14 11 20.467 +52 12 09.52   22.34 20.80 18.54   ~ 893 5

    Equat.    Gal    SGal    Ecl

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2020.06.04-23:09:20

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