2022A&A...665A..60H

Query : 2022A&A...665A..60H

2022A&A...665A..60H - Astronomy and Astrophysics, volume 665A60-60 (2022/9-1)

Diffuse radio emission from non-Planck galaxy clusters in the LoTSS-DR2 fields.

HOANG D.N., BRUGGEN M., BOTTEON A., SHIMWELL T.W., ZHANG X., BONAFEDE A., BRUNO L., BONNASSIEUX E., CASSANO R., CUCITI V., DRABENT A., DE GASPERIN F., GASTALDELLO F., DI GENNARO G., HOEFT M., JONES A., PIGNATARO G.V., ROTTGERING H.J.A., SIMIONESCU A. and VAN WEEREN R.J.

Abstract (from CDS):


Context. The presence of large-scale magnetic fields and ultra-relativistic electrons in the intra-cluster medium (ICM) is confirmed through the detection of diffuse radio synchrotron sources, so-called radio halos and relics. Due to their steep-spectrum nature, these sources are rarely detected at frequencies above a few gigahertz, especially in low-mass systems.
Aims. The aim of this study is to discover and characterise diffuse radio sources in low-mass galaxy clusters in order to understand their origin and their scaling with host cluster properties.
Methods. We searched for cluster-scale radio emission from low-mass galaxy clusters in the Low Frequency Array (LOFAR) Two-metre Sky Survey - Data Release 2 (LoTSS-DR2) fields. We made use of existing optical (Abell, DESI, WHL) and X-ray (comPRASS, MCXC) catalogues. The LoTSS-DR2 data were processed further to improve the quality of the images that are used to detect and characterise diffuse sources.
Results. We detect diffuse radio emission in 28 galaxy clusters. The numbers of confirmed (candidates) halos and relics are six (seven) and 10 (three), respectively. Among these, 11 halos and 10 relics, including candidates, are newly discovered by LOFAR. In addition to these, five diffuse sources are detected in tailed radio galaxies and are probably associated with mergers during the formation of the host clusters. We are unable to classify a further 13 diffuse sources. We compare our newly detected, diffuse sources to known sources by placing them on the scaling relation between the radio power and the mass of the host clusters.

Abstract Copyright: © D. N. Hoang et al. 2022

Journal keyword(s): galaxies: clusters: general - galaxies: clusters: intracluster medium - large-scale structure of Universe - radiation mechanisms: non-thermal - X-rays: galaxies: clusters

Simbad objects: 57

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Number of rows : 57
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 ZwCl 0008+5215 ClG 00 11 37.197 +52 32 31.68           ~ 61 0
2 [WHL2012] J002056.4+221752 ClG 00 20 56.44 +22 17 51.6           ~ 1 0
3 [WHL2012] J002311.7+251510 ClG 00 23 11.68 +25 15 09.6           ~ 1 0
4 ACO 84 ClG 00 41 36.85 +21 24 25.7           ~ 64 0
5 ACO 168 ClG 01 15 07.58 +00 19 10.8           ~ 379 2
6 [ZGX2021] 296 ClG 02 32 55.68 +41 56 14.4           ~ 1 0
7 ACO 373 ClG 02 43 26 +27 59.7           ~ 8 0
8 ACO 3376 ClG 06 01 25.000 -39 59 51.00           ~ 334 0
9 ACO 579 ClG 07 21 20 +36 44.3           ~ 12 0
10 3C 196 Sy1 08 13 36.0561170112 +48 13 02.644966020   18.36 17.79     ~ 578 2
11 ACO 655 ClG 08 25 16.12 +47 09 34.2           ~ 118 0
12 [WHL2012] J085608.5+541855 ClG 08 56 08.51 +54 18 55.1           ~ 1 0
13 [WHL2012] J091721.4+524607 ClG 09 17 21.36 +52 46 07.0           ~ 1 0
14 ACO 800 ClG 09 28 29 +37 47.9           ~ 18 0
15 ACO 851 ClG 09 43 01.2 +46 59 54   18.9       ~ 334 0
16 [WHL2012] J101350.8+344251 ClG 10 13 50.78 +34 42 51.2           ~ 2 0
17 ACO 961 ClG 10 16 39.24 +33 39 44.4           ~ 61 0
18 WARPS J1020.5+3922 ClG 10 20 17.4 +39 26 28           ~ 6 0
19 ACO 990 ClG 10 23 39.46 +49 08 19.6           ~ 88 0
20 ACO S 636 ClG 10 29 41.0957 -35 19 32.908           ~ 248 0
21 ACO 1033 ClG 10 31 39.78 +35 05 34.4           ~ 97 0
22 BAX 159.0471+57.2253 ClG 10 36 11.3 +57 13 31           ~ 11 0
23 ACO 1068 ClG 10 40 47.1 +39 57 19           ~ 232 0
24 PSZRX G195.91+62.83 ClG 10 47 41.7 +31 39 03           ~ 5 0
25 ACO 1213 ClG 11 16 26.98 +29 16 23.9           ~ 155 0
26 Z 156-46 rG 11 16 34.6160545656 +29 15 17.112000564   15.02 14.90     ~ 133 1
27 ACO 1240 ClG 11 23 37.7 +43 03 28           ~ 113 0
28 ACO 1330 ClG 11 38 23 +49 31.4           ~ 4 0
29 PSZRX G116.06+80.14 ClG 12 57 25.9 +36 54 29           ~ 6 0
30 ACO 1656 ClG 12 59 44.40 +27 54 44.9           ~ 5141 2
31 [WHL2012] J130503.5+314255 ClG 13 05 03.46 +31 42 54.9           ~ 2 0
32 ACO 3562 ClG 13 33 31.8 -31 40 23           ~ 337 1
33 ACO 1767 ClG 13 36 06.92 +59 10 34.3           ~ 182 0
34 ACO 1775 ClG 13 41 50.60 +26 21 10.6           ~ 324 0
35 ACO 1800 ClG 13 49 27.19 +28 04 44.6           ~ 127 0
36 3C 295 Sy1 14 11 20.6 +52 12 09   22.34 20.80 18.54   ~ 1021 4
37 [ZGX2021] 201 ClG 14 13 29.53 +43 58 45.8           ~ 1 0
38 ACO 1889 ClG 14 16 38.8 +30 44 08           ~ 23 0
39 ACO 1904 ClG 14 22 13.21 +48 35 59.7           ~ 144 0
40 ACO 1925 ClG 14 28 22.39 +56 46 43.7           ~ 58 0
41 ACO 1943 ClG 14 37 39 +30 14.0           ~ 9 0
42 ACO 1963 ClG 14 44 57.0 +31 30 26           ~ 22 0
43 NSC J145442+625925 ClG 14 55 04.3 +62 59 27           ~ 6 0
44 ACO 2018 ClG 15 01 17.59 +47 16 30.2           ~ 66 0
45 ACO 2061 ClG 15 21 19.90 +30 37 13.0           ~ 214 1
46 NSC J152336+595124 ClG 15 23 46.4 +59 51 20           ~ 8 0
47 ACO 2146 ClG 15 56 04.7 +66 20 24           ~ 192 0
48 ACO 2175 ClG 16 20 30.70 +29 53 31.2           ~ 133 0
49 [WHL2012] J165540.4+334422 ClG 16 55 40.40 +33 44 22.0           ~ 1 0
50 PLCKESZ G018.7+23.6 ClG 17 02 13 -01 00.2           ~ 15 0
51 ACO 2249 ClG 17 09 36.76 +34 28 04.1           ~ 136 0
52 ACO 2250 ClG 17 11.0 +39 41           ~ 69 0
53 [SPD2011] 1512 ClG 17 21 26.3 +29 41 22           ~ 3 0
54 [WHL2012] J173424.0+332526 ClG 17 34 23.99 +33 25 26.2           ~ 1 0
55 CIZA J1825.3+3026 ClG 18 25 22.8 +30 26 32           ~ 58 0
56 ZwCl 1856+6616 ClG 18 56 38.4 +66 23 10           ~ 48 0
57 PLCKESZ G100.24-30.45 ClG 23 22 14.900 +28 31 13.50           ~ 8 0

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