2021A&A...647A...3B


Query : 2021A&A...647A...3B

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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Number of rows : 71
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 ACO 399 ClG 02 57 56.4 +13 00 59           ~ 373 0
2 ACO 401 ClG 02 58 56.9 +13 34 56           ~ 540 0
3 MCS J0553.4-3342 ClG 05 53 27.200 -33 42 53.02           ~ 47 0
4 DES J060805.04-540918.2 ? 06 08 05.04 -54 09 18.2           ~ 1 0
5 DES J061042.30-541225.8 ? 06 10 42.30 -54 12 25.8           ~ 1 0
6 DES J061215.47-515738.1 ? 06 12 15.47 -51 57 38.1           ~ 1 0
7 DES J061337.62-562114.6 ? 06 13 37.62 -56 21 14.6           ~ 1 0
8 DES J061339.02-511703.5 ? 06 13 39.02 -51 17 03.5           ~ 1 0
9 DES J061518.25-550647.5 ? 06 15 18.25 -55 06 47.5           ~ 1 0
10 2MASX J06153812-5136193 G 06 15 38.1086288928 -51 36 19.481088204           ~ 1 0
11 DES J061722.22-515919.1 ? 06 17 22.22 -51 59 19.1           ~ 1 0
12 ACO 3385 ClG 06 17 44 -52 01.2           ~ 4 0
13 1RXS J061747.8-520132 X 06 17 47.8 -52 01 32           ~ 2 0
14 DES J061909.04-555843.7 ? 06 19 09.04 -55 58 43.7           ~ 1 0
15 LEDA 148729 G 06 21 12.8129490888 -52 17 00.724245720   16.62   14.90   ~ 11 0
16 DES J062133.55-563822.9 ? 06 21 33.55 -56 38 22.9           ~ 1 0
17 2MASX J06214330-5241333 AGN 06 21 43.3050812832 -52 41 33.280368216     15.5 19.34   ~ 78 1
18 2MASX J06215057-5647566 G 06 21 50.5378516968 -56 47 56.799725640   15.30   13.79   ~ 9 0
19 LEDA 148777 BiC 06 22 55.540 -53 34 34.37   17.83   14.54   ~ 9 0
20 ACO S 584 ClG 06 22 57 -53 35.6           ~ 4 0
21 WISEA J062447.61-540939.6 IR 06 24 47.61 -54 09 39.6           ~ 1 0
22 DES J062522.66-513750.1 ? 06 25 22.66 -51 37 50.1           ~ 1 0
23 ACO 3393 ClG 06 25 42 -62 53.9           ~ 2 0
24 LEDA 19029 LIN 06 25 57.0335184504 -54 27 50.338048644   16.40   14.88   ~ 14 0
25 ESO 161-6 IG 06 26 05.3 -54 02 03           ~ 8 0
26 2MASX J06261051-5432261 GiC 06 26 10.4982647544 -54 32 26.417604048           ~ 6 0
27 ACO 3391 ClG 06 26 15.4 -53 40 52           ~ 185 1
28 LEDA 19044 BiC 06 26 20.451 -53 41 35.89           ~ 9 0
29 LEDA 19057 LIN 06 26 49.5758024688 -54 32 34.581523416   15.83 16 13.52   ~ 40 1
30 ACO 3392 ClG 06 27 05.6 -35 29 30           ~ 33 2
31 DES J062719.20-542515.2 ? 06 27 19.20 -54 25 15.2           ~ 1 0
32 ACO 3395 ClG 06 27 31.1 -54 23 58           ~ 193 0
33 ESO 161-8 BiC 06 27 36.2649635808 -54 26 57.926377896   15.02   12.72   ~ 32 0
34 LEDA 2802271 GiC 06 27 43.8894185064 -54 24 26.614239012           ~ 6 0
35 LEDA 19090 GiC 06 27 44.6275911312 -54 26 45.239545392   16.99   15.55   ~ 9 0
36 ACO 3394 ClG 06 27 54 -22 14.0           ~ 2 0
37 DES J062935.40-534124.4 ? 06 29 35.40 -53 41 24.4           ~ 1 0
38 ACO 3397 ClG 06 29 38 -52 14.1           ~ 10 0
39 LEDA 446880 GiC 06 29 40.3500883800 -52 14 16.690176564           ~ 4 0
40 LEDA 446319 G 06 30 02.7227126832 -52 16 36.369327864           ~ 2 0
41 2MASS J06300394-5216339 IR 06 30 03.9458253744 -52 16 33.979424268           ~ 1 0
42 DES J063043.12-521821.2 ? 06 30 43.12 -52 18 21.2           ~ 1 0
43 SGRS J0631-5405 rG 06 31.0 -54 05           ~ 2 0
44 DES J063113.59-531719.6 ? 06 31 13.59 -53 17 19.6           ~ 1 0
45 GLEAM J063153-540527 Rad 06 31 53.0 -54 05 27           ~ 1 0
46 PMN J0631-5405 Rad 06 32 01.14 -54 04 57.7           ~ 2 0
47 2MASS J06320115-5404573 Sy1 06 32 01.1618672256 -54 04 57.471904236   18.15 18.7 17.06   ~ 28 0
48 2MASS J06333231-5424194 G 06 33 32.3134325688 -54 24 19.321943436           ~ 1 0
49 DES J063428.15-530928.4 ? 06 34 28.15 -53 09 28.4           ~ 1 0
50 WISEA J063429.02-564436.0 IR 06 34 29.02 -56 44 36.0           ~ 1 0
51 DES J063630.11-564617.7 ? 06 36 30.11 -56 46 17.7           ~ 1 0
52 DES J063633.92-561635.6 ? 06 36 33.92 -56 16 35.6           ~ 1 0
53 ACO S 592 ClG 06 38 49.40 -53 58 40.8           ~ 53 0
54 2MASS J06391002-5455152 G 06 39 10.0207562880 -54 55 15.368746296           ~ 1 0
55 VHS J063919.22-513652.1 NIR 06 39 19.22 -51 36 52.1           ~ 1 0
56 WISEA J064013.78-525702.2 IR 06 40 13.78 -52 57 02.2           ~ 1 0
57 WISEA J064024.95-535347.1 IR 06 40 24.95 -53 53 47.1           ~ 1 0
58 SMSS J064130.39-513602.7 ? 06 41 30.399113 -51 36 02.74667           ~ 1 0
59 SMSS J064437.48-515205.5 ? 06 44 37.488499 -51 52 05.58117           ~ 1 0
60 2MASX J06452948-5413365 BiC 06 45 29.489 -54 13 36.57   17.69   15.77   ~ 6 0
61 ACO 3404 ClG 06 45 29.50 -54 13 37.0           ~ 83 0
62 SMSS J064947.02-550109.6 ? 06 49 47.049351 -55 01 09.68164           ~ 1 0
63 ACO 1413 ClG 11 55 18.0 +23 24 19           ~ 400 0
64 ZwCl 1154+2435 ClG 11 56 55.8 +24 15 36           ~ 19 0
65 ACO 1656 ClG 12 59 48.7 +27 58 50           ~ 4528 2
66 ACO 1758 ClG 13 32 32.1 +50 30 37           ~ 238 2
67 NAME ACO 1758S ClG 13 32 32.8 +50 24 48           ~ 53 0
68 NAME ACO 1758N ClG 13 32 44.8 +50 32 24           ~ 88 0
69 ACO 2241 ClG 17 00 14.07 +32 34 27.2           ~ 74 0
70 ACO 2244 ClG 17 02 34.01 +34 04 41.1           ~ 256 0
71 ICRF J193925.0-634245 Sy2 19 39 25.0245304992 -63 42 45.640373400   18.87 18.37 17.64   ~ 1101 1

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2022.08.11-00:38:17

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