2015A&A...579A..92K

Query : 2015A&A...579A..92K

2015A&A...579A..92K - Astronomy and Astrophysics, volume 579A, 92-92 (2015/7-1)

The Extended GMRT Radio Halo Survey. II. Further results and analysis of the full sample.

KALE R., VENTURI T., GIACINTUCCI S., DALLACASA D., CASSANO R., BRUNETTI G., CUCITI V., MACARIO G. and ATHREYA R.

Abstract (from CDS):

The intra-cluster medium contains cosmic rays and magnetic fields that are manifested through the large scale synchrotron sources, termed radio haloes, relics, and mini-haloes. The Extended Giant Metrewave Radio Telescope (GMRT) Radio Halo Survey (EGRHS) is an extension of the GMRT Radio Halo Survey (GRHS) designed to search for radio haloes using GMRT 610/235MHz observations. The GRHS and EGRHS consists of 64 clusters in the redshift range 0.2-0.4 that have an X-ray luminosity larger than 5x1044erg/s in the 0.1-2.4keV band and declination, δ>-31° in the REFLEX and eBCS X-ray cluster catalogues. In this second paper in the series, GMRT 610/235MHz data on the last batch of 11 galaxy clusters and the statistical analysis of the full sample are presented. A new mini-halo in RXJ2129.6+0005 and candidate diffuse sources in Z5247, A2552, and Z1953 have been discovered. A unique feature of this survey are the upper limits on the detections of 1Mpc sized radio haloes; 4 new are presented here, making a total of 31 in the survey. Of the sample, 58 clusters with adequately sensitive radio information were used to obtain the most accurate occurrence fractions so far. The occurrence fractions of radio haloes, mini-haloes and relics in our sample are ∼22%, ∼16% and ∼5%, respectively. The P1.4GHz-LX diagrams for the radio haloes and mini-haloes are presented. The morphological estimators - centroid shift (w), concentration parameter (c), and power ratios (P3/P0) derived from the Chandra X-ray images - are used as proxies for the dynamical states of the GRHS and EGRHS clusters. The clusters with radio haloes and mini-haloes occupy distinct quadrants in the c-w, c-P3/P0 and w-P3/P0 planes, corresponding to the more and less morphological disturbance, respectively. The non-detections span both the quadrants.

Abstract Copyright: ∼

Journal keyword(s): galaxies: clusters: general - radio continuum: galaxies

Simbad objects: 68

goto Full paper

goto View the references in ADS

Number of rows : 68
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 ACO 2697 ClG 00 03 11.5 -06 05 30           ~ 47 0
2 ACO 2744 ClG 00 14 20.03 -30 23 17.8           ~ 813 0
3 BAX 006.9575+26.2739 ClG 00 27 45.90 +26 16 25.0           ~ 39 0
4 ACO 68 ClG 00 37 06.2 +09 09 33           ~ 186 0
5 ACO 2813 ClG 00 43 32.377 -20 35 23.51           ~ 96 0
6 ACO 141 ClG 01 05 37.183 -24 40 49.95           ~ 79 0
7 ZwCl 0104+0048 ClG 01 06 50.5 +01 04 10           ~ 61 0
8 ACO 2895 ClG 01 18 04.48 -27 00 13.4           ~ 42 0
9 ACO 209 ClG 01 31 52.9 -13 36 53           ~ 295 0
10 ClG J0142+2131 ClG 01 42 03.1 +21 30 39           ~ 56 1
11 ACO 267 ClG 01 52 43.016 +00 59 58.90           ~ 229 0
12 ACO 3088 ClG 03 07 02.12 -28 39 57.3           ~ 70 0
13 ACT-CL J0437.1+0043 ClG 04 37 12.0820 +00 43 37.737           ~ 42 0
14 ACT-CL J0438.9+0716 ClG 04 39 00.7 +07 15 45           ~ 58 0
15 BAX 069.7593+05.3453 ClG 04 39 02.2 +05 20 43           ~ 78 0
16 ACO 521 ClG 04 54 08.6 -10 14 39           ~ 249 0
17 ACO 520 ClG 04 54 10.1 +02 55 38           ~ 436 0
18 ACT-CL J0510.7-0801 ClG 05 10 43.85 -08 01 13.0           ~ 29 0
19 ACO 611 ClG 08 00 58.7 +36 02 49           ~ 258 0
20 ACO 689 ClG 08 37 29 +14 59.5           ~ 51 0
21 ACO 697 ClG 08 42 57.6 +36 21 45           ~ 253 0
22 ZwCl 0847+3617 ClG 08 50 12.0 +36 03 36           ~ 67 0
23 ZwCl 0857+2107 ClG 09 00 36.90 +20 53 40.3           ~ 93 0
24 ACO 773 ClG 09 17 51.3 +51 43 20           ~ 295 0
25 ACO 781 ClG 09 20 25.4 +30 30 07           ~ 153 0
26 ZwCl 0947+1723 ClG 09 49 51.8 +17 07 05           ~ 79 0
27 ZwCl 0949+5207 ClG 09 52 49.1 +51 53 05           ~ 135 0
28 ACO 963 ClG 10 17 03.4 +39 02 56           ~ 400 0
29 ZwCl 1021+0426 ClG 10 23 39.0 +04 11 14   15.6 17.95     ~ 282 0
30 ACO 3444 ClG 10 23 53.1540 -27 15 07.840           ~ 87 0
31 ZwCl 1113+0144 ClG 11 15 54.0 +01 29 44           ~ 37 0
32 ACO 1300 ClG 11 32 00.7 -19 53 34           ~ 151 0
33 ACO 1423 ClG 11 57 17.3206 +33 36 39.364           ~ 168 0
34 RXC J1212.3-1816 ClG 12 12 18.9 -18 16 43           ~ 15 0
35 ZwCl 1231+1007 ClG 12 34 21.9 +09 47 02           ~ 66 0
36 ACO 1576 ClG 12 36 59.5 +63 11 18           ~ 108 0
37 ZwCl 1303+2647 ClG 13 05 58.0 +26 30 53   20.1       ~ 25 0
38 ACO 1682 ClG 13 06 49.7 +46 32 59           ~ 141 1
39 ZwCl 1309+2216 ClG 13 11.5 +22 00           ~ 23 0
40 BAX 199.3086-25.5133 ClG 13 14 25.4 -25 15 44           ~ 102 0
41 ACO 1722 ClG 13 20 08.3 +70 04 33           ~ 60 0
42 ACO 1758 ClG 13 32 32.1 +50 30 37           ~ 251 2
43 ACO 1763 ClG 13 35 20.1 +41 00 04           ~ 312 0
44 ACO 1835 ClG 14 01 02.07 +02 52 43.2           ~ 688 1
45 ZwCl 1455+2232 ClG 14 57 15.2 +22 20 30     18.62 20.04   ~ 294 0
46 ACO S 780 ClG 14 59 29.1 -18 10 45           ~ 82 0
47 ZwCl 1459+4240 ClG 15 01 23.0 +42 20 47           ~ 56 0
48 ClG J1504-0248 ClG 15 04 07.4 -02 48 15           ~ 175 0
49 RXC J1512.2-2254 ClG 15 12 12.6 -22 54 59           ~ 12 0
50 2MASX J15150305-1521537 ClG 15 14.9 -15 23           ~ 46 0
51 LEDA 1900245 Bla 15 32 53.780 +30 20 59.41   19.1   15.7 17.819 ~ 145 0
52 ClG J1532+3021 ClG 15 32 53.8 +30 21 00           ~ 113 0
53 ACO 2111 ClG 15 39 40.9 +34 25 04           ~ 180 0
54 ACO 2146 ClG 15 56 04.7 +66 20 24           ~ 176 0
55 ACO 2163 ClG 16 15 46.1 -06 08 50           ~ 562 0
56 ACO 2219 ClG 16 40 22.1 +46 42 20           ~ 359 0
57 ACO 2261 ClG 17 22 26.9 +32 07 58           ~ 342 0
58 ACT-CL J2003.5-2323 ClG 20 03 32.3 -23 23 30           ~ 59 0
59 ClG J2129+0005 ClG 21 29 40.5 +00 05 47           ~ 270 0
60 ACO 2390 ClG 21 53 37.4 +17 41 46           ~ 688 2
61 ACT-CL J2211.7-0349 ClG 22 11 43.4 -03 50 07           ~ 78 0
62 BAX 337.1433+20.6131 ClG 22 28 32.6 +20 37 08           ~ 117 0
63 ACO 2485 ClG 22 48 33 -16 07.1           ~ 48 0
64 ACO 2537 ClG 23 08 22.3 -02 11 29           ~ 137 0
65 ACO 2552 ClG 23 11 31.7 +03 37 44           ~ 78 0
66 ACO 2631 ClG 23 37 40.7 +00 16 35           ~ 170 0
67 ACO 2645 ClG 23 41 17.0 -09 01 11           ~ 89 0
68 ACO 2667 ClG 23 51 39.37 -26 05 02.7           ~ 174 0

To bookmark this query, right click on this link: simbad:objects in 2015A&A...579A..92K and select 'bookmark this link' or equivalent in the popup menu