2020A&A...640A.108G


C.D.S. - SIMBAD4 rel 1.7 - 2020.10.26CET13:15:50

2020A&A...640A.108G - Astronomy and Astrophysics, volume 640A, 108-108 (2020/8-1)

Diffuse radio sources in a statistically complete sample of high-redshift galaxy clusters.

GIOVANNINI G., CAU M., BONAFEDE A., EBELING H., FERETTI L., GIRARDI M., GITTI M., GOVONI F., IGNESTI A., MURGIA M., TAYLOR G.B. and VACCA V.

Abstract (from CDS):


Aims. Non-thermal properties of galaxy clusters have been studied using detailed and deep radio images in comparison with X-ray data. While much progress has been made in this area, most of the studied clusters are at a relatively low redshift (z<0.3). Here we investigate the evolutionary properties of the non-thermal cluster emission using two statistically complete samples at z>0.3.
Methods. We obtained short JVLA observations at the L-band of the statistically complete sample of very X-ray luminous clusters from the Massive Cluster Survey (MACS), namely 34 clusters in the redshift range of 0.3-0.5 and with nominal X-ray fluxes in excess of 2x10–12erg/s/cm2 (0.1-2.4keV) in the ROSAT Bright Source Catalogue. We add to this list the complete sample of the 12 most distant MACS clusters (z>0.5).
Results. Most clusters show evidence of emission in the radio regime. We present the radio properties of all clusters in our sample and show images of newly detected diffuse sources. A radio halo is detected in 19 clusters and five clusters contain a relic source. Most of the brightest cluster galaxies (BCG) in relaxed clusters show radio emission with powers typical of FRII radio galaxies and some are surrounded by a radio mini-halo.
Conclusions. The high frequency of radio emission from the BCG in relaxed clusters suggests that BCG feedback mechanisms are already in place at z∼0.6. The properties of radio halos and the small number of detected relics suggest redshift evolution in the properties of diffuse sources. The radio power (and size) of radio halos could be related to the number of past merger events in the history of the system. In this scenario, the presence of a giant and high-power radio halo is indicative of an evolved system with a large number of past major mergers, whereas small low-power halos are found in less evolved clusters.

Abstract Copyright: © ESO 2020

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

CDS comments: Table 2 : Z8201 not identified.

Simbad objects: 55

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Number of rows : 55

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 2MAXI J0012-152 ClG 00 11 42.9 -15 23 22           ~ 29 0
2 ACO 2744 ClG 00 14 20.03 -30 23 17.8           ~ 582 0
3 ClG 0016+16 ClG 00 18 33.3 +16 26 36           ~ 475 0
4 MCS J0025.4-1222 ClG 00 25 29.381 -12 22 37.06           ~ 119 0
5 RXC J0035.4-2015 ClG 00 35 26.5 -20 15 46           ~ 27 0
6 ACT-CL J0102-4915 ClG 01 02 52.50 -49 14 58.0           ~ 156 0
7 PSZ2 G224.03-76.42 ClG 01 52 32.8 -28 53 32           ~ 24 0
8 PSZ2 G167.66-65.59 ClG 01 59 49.4 -08 50 00           ~ 67 0
9 ClG J0242-2132 ClG 02 42 35.9 -21 32 26           ~ 44 0
10 MCS J0257.1-2325 ClG 02 57 09.151 -23 26 05.83           ~ 54 0
11 ACO 402 ClG 02 57 41.33 -22 09 14.4           ~ 36 0
12 RXC J0308.9+2645 ClG 03 08 55.9 +26 45 38           ~ 35 0
13 ACO 3192 ClG 03 58 42.5 -29 54 30           ~ 18 0
14 RXC J0358.9-2955 ClG 03 58 49.3811 -29 56 04.943           ~ 23 0
15 1RXS J040438.5+110921 ClG 04 04 37.4 +11 09 57           ~ 30 0
16 RXC J0417.5-1154 ClG 04 17 34.6 -11 54 32           ~ 62 0
17 ClG J0429-0253 ClG 04 29 36.0 -02 53 09           ~ 99 0
18 ClG 0451-03 ClG 04 54 10.9 -03 01 07     20.0     ~ 331 0
19 MCS J0520.7-1328 ClG 05 20 42.0 -13 28 49           ~ 28 0
20 1WGA J0521.0-1333 X 05 21 01.2 -13 33 40           ~ 2 0
21 MCXC J0547.0-3904 ClG 05 47 01.5 -39 04 28           ~ 30 0
22 ClG J0647+7015 ClG 06 47 50.0 +70 14 55           ~ 129 0
23 ClG J0717+3745 ClG 07 17 36.50 +37 45 23.0           ~ 370 0
24 ClG J0744+3927 ClG 07 44 52.5 +39 27 30           ~ 163 0
25 ACO 3411 ClG 08 41 47.7 -17 28 46           ~ 53 0
26 ACO 3412 ClG 08 42 05 -17 35.8           ~ 14 0
27 RXC J0911.1+1746 ClG 09 11 11.277 +17 46 31.94           ~ 55 0
28 ClG J0947+7623 ClG 09 47 12.9 +76 23 13           ~ 133 1
29 ZwCl 0947+1723 ClG 09 49 51.8 +17 07 05           ~ 63 0
30 MCS J1115.8+0129 ClG 11 15 52.1 +01 29 53           ~ 103 0
31 ACO 1300 ClG 11 32 00.7 -19 53 34           ~ 133 0
32 MCS J1149.5+2223 ClG 11 49 35.8 +22 23 55           ~ 333 0
33 MCS J1206.2-0847 ClG 12 06 12.2 -08 48 02           ~ 186 0
34 [K94] 125317.48+273302.1 Rad 12 55 43.3 +27 16 33           ~ 9 0
35 NGC 4839 rG 12 57 24.353 +27 29 51.80 13.56 13.02 12.06     ~ 430 3
36 ACO 1656 ClG 12 59 48.7 +27 58 50           ~ 4267 2
37 ACO 1722 ClG 13 20 08.3 +70 04 33           ~ 59 0
38 ClG J1347-1145 ClG 13 47 33.5 -11 45 42           ~ 477 0
39 ClG J1423+2404 ClG 14 23 47.7 +24 04 40           ~ 180 0
40 MCS J1427.6-2521 ClG 14 27 39.4 -25 21 02           ~ 21 0
41 LEDA 1900245 Bla 15 32 53.780 +30 20 59.41   19.1   15.7   ~ 132 0
42 ClG J1532+3021 ClG 15 32 53.8 +30 21 00           ~ 94 0
43 ClG J1720+3536 ClG 17 20 16.8 +35 36 27           ~ 117 1
44 RXC J1731.6+2251 ClG 17 31 39.2 +22 51 50           ~ 36 0
45 ClG J1931-2635 ClG 19 31 49.6 -26 34 33           ~ 126 0
46 MCS J2049.9-3217 ClG 20 49 56.2 -32 16 52           ~ 17 0
47 ClG J2129-0741 ClG 21 29 26.0 -07 41 28           ~ 139 0
48 ClG 2137-2353 ClG 21 40 12.8 -23 39 27     18.5     ~ 350 0
49 MCXC J2211.7-0349 ClG 22 11 43.4 -03 50 07           ~ 55 0
50 RXC J2214.9-1400 ClG 22 14 57.3 -14 00 12           ~ 73 0
51 1RXS J222834.4+203647 ClG 22 28 37.1 +20 36 31           ~ 103 0
52 ClG J2229-2756 ClG 22 29 45.36 -27 55 36.5           ~ 40 0
53 MCS J2243.3-0935 ClG 22 43 21.1 -09 35 43           ~ 60 0
54 RXC J2245.0+2637 ClG 22 45 04.5 +26 38 07           ~ 32 0
55 ACO 2552 ClG 23 11 33.1 +03 38 37           ~ 62 0

    Equat.    Gal    SGal    Ecl

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2020.10.26-13:15:50

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