2004A&A...423...57V


C.D.S. - SIMBAD4 rel 1.7 - 2019.11.14CET09:00:27

2004A&A...423...57V - Astronomy and Astrophysics, volume 423, 57-64 (2004/8-3)

Detection of a radio halo in the Virgo cluster.

VOLLMER B., REICH W. and WIELEBINSKI R.

Abstract (from CDS):

New Effelsberg 1.4 GHz observations of the central 10°x10° of the Virgo cluster are presented. NVSS data are used to subtract point sources from our map. During the data reduction process special care is taken (I) to disentangle emission from the North Polar Spur from emission from the Virgo cluster, (II) to disentangle emission from the strong M 87 sidelobes from emission from the Virgo cluster, and (III) to correct for non-linear ground emission due to the long scans. We detect a low surface brightness radio halo with a flux density of 5±1.5Jy centered close to the elliptical galaxy M 86. This halo is much weaker than that observed in the Coma cluster. It is reminiscent of a past interaction between the intracluster medium of M 86 and a low density gas, belonging most probably to the Virgo cluster.

Abstract Copyright:

Journal keyword(s): galaxies: clusters: individual: Virgo - galaxies: intergalactic medium - radio continuum: general

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 V* CM Tau Psr 05 34 31.93830 +22 00 52.1758           F 4717 1
2 M 1 SNR 05 34 31.94 +22 00 52.2           ~ 5488 4
3 NAME North Polar Spur ISM 12 00 +00.0           ~ 297 1
4 NGC 4261 LIN 12 19 23.21607184 +05 49 29.7000920   13.92 12.87     ~ 1090 0
5 M 86 GiG 12 26 11.814 +12 56 45.49 10.32 9.83 8.90   7.50 ~ 997 1
6 NAME Vir I ClG 12 26 32.1 +12 43 24   10.00 8.49     ~ 5660 0
7 3C 273 BLL 12 29 06.6996828061 +02 03 08.598846466   13.05 14.830 14.11   ~ 5244 1
8 M 49 Sy2 12 29 46.798 +08 00 01.48   13.21 12.17     ~ 1925 2
9 M 87 BiC 12 30 49.42338230 +12 23 28.0438581 10.16 9.59 8.63   7.49 ~ 6036 3
10 NAME Virgo A Cluster ClG 12 30.8 +12 23           ~ 118 0
11 3C 286 Sy1 13 31 08.2885060664 +30 30 32.960825108   17.51 17.25     ~ 3617 1
12 NAME Cyg A Sy2 19 59 28.35645829 +40 44 02.0966496   16.22 15.10     ~ 2058 2
13 NAME Cas A SNR 23 23 24.000 +58 48 54.00           ~ 2337 1

    Equat.    Gal    SGal    Ecl

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2019.11.14-09:00:27

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