2021A&A...651A.115V

Query : 2021A&A...651A.115V

2021A&A...651A.115V - Astronomy and Astrophysics, volume 651A, 115-115 (2021/7-1)

LOFAR observations of galaxy clusters in HETDEX. Extraction and self-calibration of individual LOFAR targets.

VAN WEEREN R.J., SHIMWELL T.W., BOTTEON A., BRUNETTI G., BRUGGEN M., BOXELAAR J.M., CASSANO R., DI GENNARO G., ANDRADE-SANTOS F., BONNASSIEUX E., BONAFEDE A., CUCITI V., DALLACASA D., DE GASPERIN F., GASTALDELLO F., HARDCASTLE M.J., HOEFT M., KRAFT R.P., MANDAL S., ROSSETTI M., ROTTGERING H.J.A., TASSE C. and WILBER A.G.

Abstract (from CDS):

Diffuse cluster radio sources, in the form of radio halos and relics, reveal the presence of cosmic rays and magnetic fields in the intracluster medium (ICM). These cosmic rays are thought to be (re)accelerated through the ICM turbulence and shock waves generated by cluster merger events. Here we characterize the presence of diffuse radio emission in known galaxy clusters in the HETDEX Spring Field, covering 424 deg2. For this, we developed a method to extract individual targets from LOFAR observations processed with the LoTSS DDF-pipeline software. This procedure enables improved calibration as well as the joint imaging and deconvolution of multiple pointings of selected targets. The calibration strategy can also be used for LOFAR low-band antenna and international-baseline observations. The fraction of Planck PSZ2 catalog clusters with any diffuse radio emission apparently associated with the ICM is 73±17%. We detect a total of ten radio halos and twelve candidate halos in the HETDEX Spring Field. Of these ten radio halos, four are new discoveries, two of which are located in PSZ2 clusters. Five clusters host radio relics, two of which are new discoveries. The fraction of radio halos in Planck PSZ2 clusters is 31±11%, or 62±15% when including the candidate radio halos. Based on these numbers, we expect that there will be at least 183±65 radio halos found in the LoTSS survey in PSZ2 clusters, in agreement with past predictions. The integrated flux densities for the radio halos were computed by fitting exponential models to the radio images. From these flux densities, we determine the cluster mass (M500) and Compton Y parameter (Y500) 150MHz radio power (P150MHz) scaling relations for Planck PSZ2-detected radio halos. Using bivariate correlated errors and intrinsic scatter orthogonal regression, we find slopes of 6.13±1.11 and 3.32±0.65 for the M500-P150MHz and M500-P150MHz relations, respectively. These values are consistent with the results of previous works.

Abstract Copyright: © ESO 2021

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: 74

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Number of rows : 74
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 ZwCl 0008+5215 ClG 00 11 37.197 +52 32 31.68           ~ 52 0
2 ACO 2744 ClG 00 14 20.03 -30 23 17.8           ~ 816 0
3 ACO 141 ClG 01 05 37.183 -24 40 49.95           ~ 79 0
4 ClG J0142+2131 ClG 01 42 03.1 +21 30 39           ~ 56 1
5 ACO 521 ClG 04 54 08.6 -10 14 39           ~ 249 0
6 ACO 520 ClG 04 54 10.1 +02 55 38           ~ 436 0
7 PSZ1 G139.61+24.20 ClG 06 22 13.9 +74 41 39           ~ 26 0
8 ClG J0717+3745 ClG 07 17 36.50 +37 45 23.0           ~ 463 0
9 ACO 697 ClG 08 42 57.6 +36 21 45           ~ 253 0
10 ACO 959 ClG 10 17 35.0 +59 33 28           ~ 68 0
11 BAX 163.4480+54.8499 ClG 10 53 50.83 +54 49 55.1           ~ 50 0
12 PSZ1 G151.62+54.78 ClG 10 54 52.0 +55 21 12           ~ 21 0
13 ACO 1132 ClG 10 58 32.05 +56 47 14.2           ~ 129 1
14 ACO 1156 ClG 11 04 57 +47 24.8           ~ 5 0
15 PSZ2 G156.26+59.64 ClG 11 08 24.5665 +50 16 52.004           ~ 8 0
16 ClG J1115+5319 ClG 11 15 14.8 +53 19 54           ~ 49 0
17 [SPD2011] 28284 ClG 11 32 15.4 +47 49 15           ~ 2 0
18 ACO 1294 ClG 11 32 41.8 +54 13 10           ~ 19 0
19 IC 708 SyG 11 33 59.2259098704 +49 03 43.440038784   14.2       ~ 141 0
20 IC 711 LIN 11 34 46.5591867192 +48 57 22.009458600   15.2       ~ 79 1
21 IC 712 BiC 11 34 49.2945748128 +49 04 39.576182052   14.8       ~ 86 1
22 ACO 1314 ClG 11 34 53.0 +49 05 18           ~ 218 1
23 ACO 1387 ClG 11 48 58.25 +51 35 05.4           ~ 30 0
24 ACO 1413 ClG 11 55 12.87 +23 23 46.9           ~ 430 0
25 ACO 1430 ClG 11 59 17.5 +49 47 46           ~ 44 0
26 ACO 1436 ClG 12 00 20.04 +56 17 10.1           ~ 116 0
27 PSZ1 G135.24+65.43 ClG 12 19 17.5 +50 54 32           ~ 12 0
28 [AWK2020] 1548 ClG 12 24 15.18 +49 06 34.5           ~ 2 0
29 LEDA 2333420 BiC 12 24 18.5834655984 +49 05 49.783586928           ~ 4 0
30 ACO 1550 ClG 12 29 02.5 +47 37 20           ~ 46 0
31 PSZRX G127.13+67.98 ClG 12 41 43.1 +49 05 10           ~ 5 0
32 ACO 1615 ClG 12 47 42 +48 52.6           ~ 5 0
33 ACO 1622 ClG 12 49 41.3535 +49 52 18.344           ~ 19 0
34 [RRB2014] RM J125836.8+440111.0 ClG 12 58 36.8 +44 01 11           ~ 5 0
35 ACO 1656 ClG 12 59 44.40 +27 54 44.9           ~ 4809 2
36 PSZ2 G118.34+68.79 ClG 13 01 22.0 +48 15 44           ~ 11 0
37 ACO 1682 ClG 13 06 49.7 +46 32 59           ~ 141 1
38 ACO 1697 ClG 13 12 59.63 +46 15 39.5           ~ 48 0
39 UGC 8308 AG? 13 13 22.839 +46 19 21.71   17       ~ 131 1
40 ACO 1703 ClG 13 15 05.2 +51 49 02           ~ 146 0
41 [RRB2014] RM J132226.8+464630.2 ClG 13 22 26.7 +46 46 30           ~ 4 0
42 [KMA2007] 201.56601+48.87476 ClG 13 26 15.8 +48 52 29           ~ 4 0
43 PSZ1 G106.60+66.70 ClG 13 30 29.4 +49 08 47           ~ 14 0
44 ACO 1758 ClG 13 32 32.1 +50 30 37           ~ 252 2
45 NAME ACO 1758S GrG 13 32 32.8 +50 24 48           ~ 64 0
46 MCXC J1332.7+5032 ClG 13 32 44.8 +50 32 24           ~ 107 0
47 [RRB2014] RM J133936.0+484859.2 ClG 13 39 36.0 +48 48 59           ~ 5 0
48 [KMA2007] 206.94498+47.87074 ClG 13 47 46.7 +47 52 14           ~ 5 0
49 MCXC J1351.7+4622 ClG 13 51 45.6 +46 22 00           ~ 26 0
50 MCG+08-25-051 BiC 13 52 38.5459989000 +46 20 59.408865708   15.7       ~ 19 0
51 [KMA2007] 211.72968+55.06742 ClG 14 06 55.1 +55 04 02           ~ 4 0
52 PSZ1 G099.84+58.45 ClG 14 14 48.09 +54 46 42.2           ~ 27 0
53 RX J1422.1+4831 X 14 22 11.00 +48 31 18.0           ~ 3 0
54 ACO 1904 ClG 14 22 13.21 +48 35 59.7           ~ 134 0
55 ACO 1920 ClG 14 27 25.25 +55 45 13.5           ~ 41 0
56 RX J1427.4+5545 X 14 27 27.499 +55 45 20.99           ~ 3 0
57 ACO 1931 ClG 14 31 59 +44 15.8           ~ 7 0
58 ACO 1940 ClG 14 35 30.56 +55 09 33.9           ~ 92 0
59 NGC 5714 GiG 14 38 11.5257329928 +46 38 18.035624940   14.2       ~ 103 0
60 NSC J143825+463744 ClG 14 38 24.98 +46 37 44.1           ~ 2 0
61 NGC 5717 G 14 38 37.7021463288 +46 39 47.141428500   14.3       ~ 17 0
62 NGC 5722 Sy2 14 38 54.4152591576 +46 39 56.144711448   15       ~ 26 0
63 MLCG 1495 CGG 14 38 55.096 +46 40 35.60           ~ 5 0
64 MOO J1448+4833 ClG 14 48 57.9 +48 33 19           ~ 12 0
65 PSZ1 G089.04+55.07 C?G 14 59 00.5 +52 49 36           ~ 9 0
66 ACO 2018 ClG 15 01 17.59 +47 16 30.2           ~ 53 0
67 ZwCl 1459+4240 ClG 15 01 23.0 +42 20 47           ~ 56 0
68 PSZ1 G086.93+53.18 ClG 15 13 54.8967 +52 47 54.300           ~ 16 0
69 PSZ1 G087.32+50.92 ClG 15 26 16.5628 +54 08 35.069           ~ 12 0
70 ACO 2146 ClG 15 56 04.7 +66 20 24           ~ 177 0
71 ClG J1720+2638 ClG 17 20 09.6 +26 37 35           ~ 255 0
72 ACO 2261 ClG 17 22 26.9 +32 07 58           ~ 342 0
73 CIZA J1825.3+3026 ClG 18 25 22.8 +30 26 32           ~ 49 0
74 PSZ1 G108.18-11.53 ClG 23 22 28.2499 +48 44 29.172           ~ 29 0

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