SIMBAD references

2021A&A...647A...3B - Astronomy and Astrophysics, volume 647A, 3-3 (2021/3-1)

Radio observations of the merging galaxy cluster system Abell 3391-Abell 3395.

BRUGGEN M., REIPRICH T.H., BULBUL E., KORIBALSKI B.S., ANDERNACH H., RUDNICK L., HOANG D.N., WILBER A.G., DUCHESNE S.W., VERONICA A., PACAUD F., HOPKINS A.M., NORRIS R.P., JOHNSTON-HOLLITT M., BROWN M.J.I., BONAFEDE A., BRUNETTI G., COLLIER J.D., SANDERS J.S., VARDOULAKI E., VENTURI T., KAPINSKA A.D. and MARVIL J.

Abstract (from CDS):

The pre-merging system of galaxy clusters Abell 3391-Abell 3395 located at a mean redshift of 0.053 has been observed at 1 GHz in an ASKAP/EMU Early Science observation as well as in X-rays with eROSITA. The projected separation of the X-ray peaks of the two clusters is ∼50' or ∼3.1Mpc. Here we present an inventory of interesting radio sources in this field around this cluster merger. While the eROSITA observations provide clear indications of a bridge of thermal gas between the clusters, neither ASKAP nor MWA observations show any diffuse radio emission coinciding with the X-ray bridge. We derive an upper limit on the radio emissivity in the bridge region of <J>1GHz<1.2x10–44W/Hz/m3. A non-detection of diffuse radio emission in the X-ray bridge between these two clusters has implications for particle-acceleration mechanisms in cosmological large-scale structure. We also report extended or otherwise noteworthy radio sources in the 30 deg2 field around Abell 3391-Abell 3395. We identified 20 Giant Radio Galaxies, plus 7 candidates, with linear projected sizes greater than 1Mpc. The sky density of field radio galaxies with largest linear sizes of >0.7Mpc is ≃1.7deg–2, three times higher than previously reported. We find no evidence for a cosmological evolution of the population of Giant Radio Galaxies. Moreover, we find seven candidates for cluster radio relics and radio halos.

Abstract Copyright: © ESO 2021

Journal keyword(s): X-rays: galaxies: clusters - radio continuum: galaxies - galaxies: clusters: intracluster medium

VizieR on-line data: <Available at CDS (J/A+A/647/A3): list.dat fits/*>

Status at CDS : Examining the need for a new acronym.

CDS comments: Table 2 PMN 0622-5334 not in SIMBAD. SPT CL J0553-3342 not in SIMBAD.

Simbad objects: 71

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2022.11.30-04:05:24

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