2000MNRAS.314..594V

Query : 2000MNRAS.314..594V

2000MNRAS.314..594V - Mon. Not. R. Astron. Soc., 314, 594-610 (2000/May-3)

Radio properties of the Shapley Concentration - III. Merging clusters in the A3558 complex.

VENTURI T., BARDELLI S., MORGANTI R. and HUNSTEAD R.W.

Abstract (from CDS):

We present the results of a 22-cm radio survey carried out with the Australia Telescope Compact Array (ATCA) covering the A3558 complex, a chain formed by the merging ACO clusters A3556-A3558-A3562 and the two groups SC 1327-312 and SC 1323-313, located in the central region of the Shapley Concentration. The purpose of our survey is to study the effects of cluster mergers on the statistical properties of radio galaxies and to investigate the connection between mergers and the presence of radio haloes and relic sources.

We found that the radio source counts in the A3558 complex are consistent with the background source counts. The much higher optical density compared with the background is not reflected as a higher density of radio sources. Furthermore, we found that no correlation exists between the local density and the radio source power, and that steep-spectrum radio galaxies are not segregated in denser optical regions.

The radio luminosity function for elliptical and S0 galaxies is significantly lower than for cluster early-type galaxies and for those not selected to be in clusters at radio powers logP1.4≳22.5, implying that the probability of a galaxy becoming a radio source above this power limit is lower in the Shapley Concentration compared with any other environment. Possible explanations will be presented.

The detection of a head-tail source in the centre of A3562, coupled with careful inspection of the 20-cm NRAO VLA Sky Survey (NVSS) and of 36-cm MOST observations, allowed us to spot two extended sources in the region between A3562 and SC 1329-313, i.e. a candidate radio halo at the centre of A3562 and low brightness extended emission around a 14.96-mag Shapley galaxy. The relation between these two extended galaxies and the ongoing group merger in this region of the Shapley Concentration are discussed.


Abstract Copyright: 2000, Royal Astronomical Society

Journal keyword(s): galaxies: clusters: general - galaxies: clusters: individual: A3556 - galaxies: clusters: individual: A3558 - galaxies: clusters: individual: A3562 - galaxies: clusters: individual: SC 1329-313 (read: SC 1327-31.3) - radio continuum: galaxies

Nomenclature: Table 3: [VBM2000] JHHMM-DDMMa N=157.

Simbad objects: 163

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Number of rows : 163
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 NAME Shapley Supercluster SCG 13 06.0 -33 04           ~ 677 0
2 ACO 3556 ClG 13 24 06.2 -31 39 38           ~ 159 0
3 [VBM2000] J1325-3157 Rad 13 25 40.7 -31 57 35           ~ 1 0
4 [VBM2000] J1325-3141b Rad 13 25 56.2 -31 41 33           ~ 1 0
5 [VBM2000] J1326-3140a Rad 13 26 25.5 -31 40 57           ~ 1 0
6 [VBM2000] J1326-3155 Rad 13 26 30.4 -31 55 35           ~ 1 0
7 [VBM2000] J1326-3156 Rad 13 26 48.7 -31 56 43           ~ 1 0
8 LEDA 98069 GiC 13 26 53.980 -31 18 38.89   18.61   16.56 16.36 ~ 11 0
9 [VBM2000] J1326-3123b Rad 13 26 56.9 -31 23 09           ~ 1 0
10 [VBM2000] J1327-3210 Rad 13 27 10.1 -32 10 31           ~ 1 0
11 [VBM2000] J1327-3135 Rad 13 27 12.7 -31 35 00           ~ 1 0
12 [VBM2000] J1327-3202 Rad 13 27 19.8 -32 02 36           ~ 1 0
13 NVSS J132724-320939 Rad 13 27 24.71 -32 09 41.5           ~ 2 1
14 [VBM2000] J1327-3158 Rad 13 27 26.3 -31 58 15           ~ 1 0
15 [VBM2000] J1327-3157 Rad 13 27 28.3 -31 57 08           ~ 1 0
16 NVSS J132729-312327 rG 13 27 29.6320274928 -31 23 24.218517660   15.55   13.69 13.30 ~ 44 0
17 [VBM2000] J1327-3159 Rad 13 27 38.5 -31 59 01           ~ 1 0
18 [VBM2000] J1327-3201a Rad 13 27 43.1 -32 01 09           ~ 1 0
19 [VBM2000] J1327-3201b Rad 13 27 46.7 -32 01 40           ~ 1 0
20 [VBM2000] J1327-3200 Rad 13 27 46.8 -32 00 30           ~ 1 0
21 [VBM2000] J1327-3153 Rad 13 27 48.7 -31 53 17           ~ 1 0
22 NVSS J132750-312103 Rad 13 27 49.74 -31 21 06.4           ~ 2 1
23 [VBM2000] J1327-3129a Rad 13 27 50.1 -31 29 20           ~ 1 0
24 [VBM2000] J1327-3152 Rad 13 27 50.9 -31 52 22           ~ 1 0
25 [VBM2000] J1327-3208a Rad 13 27 51.2 -32 08 30           ~ 1 0
26 [VBM2000] J1327-3151 Rad 13 27 51.6 -31 51 16           ~ 1 0
27 [VBM2000] J1327-3208b Rad 13 27 53.1 -32 08 52           ~ 1 0
28 LEDA 47197 rG 13 27 54.9677532648 -31 32 18.771659844   15.81   13.87   ~ 36 0
29 MCG-05-32-026 rG 13 27 56.884 -31 29 43.71   13.88 15 12.24 12.76 ~ 88 2
30 [VBM2000] J1328-3133 Rad 13 28 00.9 -31 33 09           ~ 1 0
31 LEDA 88857 rG 13 28 02.6293992312 -31 45 20.684288484   16.05   14.23 13.97 ~ 35 0
32 [VBM2000] J1328-3127 Rad 13 28 03.1 -31 27 43           ~ 1 0
33 ACO 3558 ClG 13 28 03.2 -31 31 35           ~ 476 2
34 [VBM2000] J1328-3129 Rad 13 28 10.1 -31 29 19           ~ 1 0
35 NVSS J132811-320402 Rad 13 28 11.28 -32 04 02.6           ~ 2 1
36 [VBM2000] J1328-3206 Rad 13 28 11.8 -32 06 38           ~ 1 0
37 [VBM2000] J1325-3202b Rad 13 28 14.7 -32 18 18           ~ 1 0
38 NVSS J132816-314818 Rad 13 28 16.26 -31 48 18.8           ~ 2 1
39 [VBM2000] J1328-3210 Rad 13 28 20.7 -32 10 56           ~ 1 0
40 [VBM2000] J1328-3134 Rad 13 28 21.2 -31 34 39           ~ 1 0
41 [VBM2000] J1328-3111a Rad 13 28 25.5 -31 11 20           ~ 1 0
42 [VBM2000] J1328-3119 Rad 13 28 29.3 -31 19 30           ~ 1 0
43 NVSS J132831-313503 Rad 13 28 31.29 -31 35 05.0           ~ 2 1
44 [VBM2000] J1328-3111b Rad 13 28 34.8 -31 11 55           ~ 1 0
45 [VBM2000] J1328-3139 Rad 13 28 36.1 -31 39 42           ~ 1 0
46 [VBM2000] J1328-3124 Rad 13 28 36.2 -31 24 07           ~ 1 0
47 [VBM2000] J1328-3146 Rad 13 28 44.2 -31 46 27           ~ 1 0
48 [VBM2000] J1328-3157 Q? 13 28 49.7 -31 57 02           ~ 1 0
49 2MASX J13285231-3209458 EmG 13 28 52.3442673144 -32 09 45.534607128   16.83   14.99 14.55 ~ 24 0
50 [VBM2000] J1328-3155 Rad 13 28 56.5 -31 55 24           ~ 1 0
51 LEDA 98593 rG 13 28 57.7050524712 -31 51 34.927763436   17.04   15.50 15.38 ~ 10 0
52 LEDA 98600 rG 13 28 59.282 -31 44 15.79   17.60   16.18 16.02 ~ 8 0
53 [VBM2000] J1329-3126 Q? 13 29 00.5 -31 26 45           ~ 1 0
54 NVSS J132904-313107 Rad 13 29 04.45 -31 31 09.3           ~ 2 1
55 [VBM2000] J1329-3129a Rad 13 29 05.6 -31 29 41           ~ 1 0
56 [VBM2000] J1329-3113 Rad 13 29 08.5 -31 13 05           ~ 1 0
57 [VBM2000] J1329-3133 Rad 13 29 13.0 -31 33 22           ~ 1 0
58 NVSS J132913-312155 Rad 13 29 13.03 -31 21 53.7           ~ 2 1
59 LEDA 98708 rG 13 29 28.5836 -31 39 25.460   16.80   15.99 16.12 ~ 24 0
60 NVSS J132929-312944 Rad 13 29 29.34 -31 29 46.4           ~ 2 1
61 [VBM2000] J1329-3116a Rad 13 29 30.9 -31 16 50           ~ 1 0
62 [VBM2000] J1329-3116b Rad 13 29 31.9 -31 16 55           ~ 1 0
63 [VBM2000] J1329-3117 Rad 13 29 33.5 -31 17 00           ~ 1 0
64 NVSS J132941-315841 Rad 13 29 41.69 -31 58 41.7           ~ 2 1
65 [VBM2000] J1329-3154 Rad 13 29 41.9 -31 54 14           ~ 1 0
66 [VBM2000] J1329-3200 Q? 13 29 43.7 -32 00 42           ~ 1 0
67 BAX 202.4458-31.6081 ClG 13 29 47.0 -31 36 29           ~ 80 1
68 [VBM2000] J1329-3122 Rad 13 29 49.3 -31 22 20           ~ 1 0
69 LEDA 98775 rG 13 29 50.9144171448 -31 22 58.335038976   18.94   17.02 16.88 ~ 6 0
70 [VBM2000] J1329-3129 Rad 13 29 55.3 -31 29 40           ~ 1 0
71 [VBM2000] J1330-3145 Rad 13 30 04.8 -31 45 13           ~ 1 0
72 [VBM2000] J1330-3144a Rad 13 30 05.3 -31 44 57           ~ 1 0
73 [VBM2000] J1330-3143 Rad 13 30 05.7 -31 43 50           ~ 1 0
74 [VBM2000] J1330-3144b Rad 13 30 08.8 -31 44 17           ~ 1 0
75 QSO B1327-311 Bla 13 30 19.08405157 -31 22 59.1356578   18.5 17.4 18.70   ~ 47 1
76 [VBM2000] J1330-3156 Rad 13 30 26.9 -31 56 51           ~ 1 0
77 NVSS J133030-312959 Rad 13 30 31.00 -31 30 01.3           ~ 2 1
78 [VBM2000] J1330-3138 Rad 13 30 37.2 -31 38 31           ~ 1 0
79 [VBM2000] J1330-3134 Rad 13 30 38.7 -31 34 56           ~ 1 0
80 [VBM2000] J1330-3141 Rad 13 30 53.5 -31 41 34           ~ 1 0
81 [VBM2000] J1330-3204 Rad 13 30 55.9 -32 04 06           ~ 1 0
82 [VBM2000] J1330-3122b Rad 13 30 59.1 -31 22 54           ~ 1 0
83 LEDA 99018 rG 13 31 00.7533580824 -31 44 54.699523620   16.73 12.7 15.55 15.59 ~ 14 0
84 [VBM2000] J1331-3155 Rad 13 31 06.5 -31 55 08           ~ 1 0
85 [VBM2000] J1331-3139a Q? 13 31 11.3 -31 39 38           ~ 1 0
86 [VBM2000] J1331-3139b Rad 13 31 12.1 -31 39 26           ~ 1 0
87 [VBM2000] J1331-3138a Rad 13 31 14.4 -31 38 04           ~ 1 0
88 [VBM2000] J1331-3210 Rad 13 31 16.9 -32 10 05           ~ 1 0
89 GLEAM J133114-312822 Q? 13 31 17.09 -31 28 21.6           ~ 2 1
90 [VBM2000] J1331-3143 Rad 13 31 19.7 -31 43 37           ~ 1 0
91 [VBM2000] J1331-3149 Rad 13 31 21.4 -31 49 03           ~ 1 0
92 [VBM2000] J1331-3145 Rad 13 31 22.9 -31 45 27           ~ 1 0
93 [VBM2000] J1331-3137 Rad 13 31 22.9 -31 37 39           ~ 1 0
94 [VBM2000] J1331-3121 Rad 13 31 29.8 -31 21 51           ~ 1 0
95 [VBM2000] J1331-3138b Rad 13 31 31.6 -31 38 36           ~ 1 0
96 [VBM2000] J1331-3125 Q? 13 31 31.6 -31 25 11           ~ 1 0
97 [VBM2000] J1331-3206 Q? 13 31 42.7 -32 06 38           ~ 1 0
98 [VBM2000] J1331-3147a Rad 13 31 43.9 -31 47 39           ~ 1 0
99 [VBM2000] J1331-3201 Rad 13 31 48.9 -32 01 14           ~ 1 0
100 [VBM2000] J1331-3142 Rad 13 31 51.0 -31 42 48           ~ 1 0
101 [VBM2000] J1331-3156 Rad 13 31 53.7 -31 56 09           ~ 1 0
102 LEDA 47590 rG 13 32 03.1619332728 -31 46 48.527873652   15.65   13.99 13.43 ~ 36 0
103 [VBM2000] J1332-3141a Rad 13 32 04.6 -31 41 34           ~ 1 0
104 [VBM2000] J1332-3153a Rad 13 32 16.0 -31 53 02           ~ 1 0
105 [VBM2000] J1332-3215 Rad 13 32 17.1 -32 15 35           ~ 1 0
106 NVSS J133217-315251 Rad 13 32 17.83 -31 52 49.7           ~ 2 1
107 [VBM2000] J1332-3123 Rad 13 32 27.5 -31 23 55           ~ 1 0
108 [VBM2000] J1332-3141b Rad 13 32 31.8 -31 41 54           ~ 1 0
109 [VBM2000] J1332-3153b Rad 13 32 33.7 -31 53 14           ~ 1 0
110 [VBM2000] J1332-3202 Rad 13 32 40.0 -32 02 03           ~ 1 0
111 [VBM2000] J1332-3201 Rad 13 32 42.5 -32 01 43           ~ 1 0
112 [VBM2000] J1332-3158a Rad 13 32 44.0 -31 58 18           ~ 1 0
113 NVSS J133245-315828 Rad 13 32 45.36 -31 58 25.5           ~ 2 1
114 [VBM2000] J1333-3117 Rad 13 33 05.3 -31 17 48           ~ 1 0
115 2MASX J13333164-3140589 rG 13 33 31.6328323296 -31 40 58.565066592   17.33   15.39 15.05 ~ 17 0
116 ACO 3562 ClG 13 33 31.8 -31 40 23           ~ 337 1
117 [VBM2000] J1333-3130 Rad 13 33 37.4 -31 30 45           ~ 1 0
118 [VBM2000] J1333-3118 Rad 13 33 37.9 -31 18 05           ~ 1 0
119 [VBM2000] J1333-3135 Rad 13 33 41.4 -31 35 47           ~ 1 0
120 [VBM2000] J1333-3120 Rad 13 33 53.1 -31 20 02           ~ 1 0
121 [VBM2000] J1334-3146 Rad 13 34 04.0 -31 46 32           ~ 1 0
122 LEDA 99546 rG 13 34 06.6 -31 43 37   17.4   16.4 17.08 ~ 5 0
123 NVSS J133408-312839 Rad 13 34 08.26 -31 28 40.0           ~ 2 1
124 [VBM2000] J1334-3136 Rad 13 34 09.1 -31 36 58           ~ 1 0
125 [VBM2000] J1334-3123 Rad 13 34 12.6 -31 23 58           ~ 1 0
126 [VBM2000] J1334-3149 Rad 13 34 13.9 -31 49 51           ~ 1 0
127 NVSS J133422-311916 Rad 13 34 22.46 -31 19 15.3           ~ 2 1
128 NVSS J133422-313908 Rad 13 34 22.77 -31 39 07.1           ~ 2 1
129 [VBM2000] J1334-3137 Rad 13 34 30.8 -31 37 45           ~ 1 0
130 LEDA 99606 rG 13 34 35.8814965368 -31 41 06.133944840   14.89   13.81 14.29 ~ 11 0
131 [VBM2000] J1334-3132a Rad 13 34 36.7 -31 32 42           ~ 1 0
132 [VBM2000] J1334-3132b Rad 13 34 37.4 -31 32 49           ~ 1 0
133 [VBM2000] J1334-3132c rG 13 34 40.5 -31 32 45           ~ 1 0
134 [VBM2000] J1334-3125 Rad 13 34 51.2 -31 25 35           ~ 1 0
135 [VBM2000] J1334-3151 Rad 13 34 52.2 -31 51 15           ~ 1 0
136 LEDA 99666 rG 13 35 03.0540210168 -31 39 18.639281160   15.85   14.00 13.83 ~ 23 0
137 [VBM2000] J1335-3118 Rad 13 35 07.3 -31 18 07           ~ 1 0
138 [VBM2000] J1335-3130 Rad 13 35 07.9 -31 30 42           ~ 1 0
139 LEDA 99695 GiC 13 35 12.6230353440 -31 33 44.832000168   16.33   15.22 15.34 ~ 11 0
140 [VBM2000] J1335-3124 Rad 13 35 16.4 -31 24 57           ~ 1 0
141 [VBM2000] J1335-3125 Rad 13 35 17.8 -31 25 08           ~ 1 0
142 LEDA 99703 rG 13 35 18.9005115288 -31 34 57.173609244   19.70   16.28 16.01 ~ 6 0
143 [VBM2000] J1335-3126 Rad 13 35 20.4 -31 26 20           ~ 1 0
144 [VBM2000] J1335-3143a Rad 13 35 27.3 -31 43 05           ~ 1 0
145 NVSS J133541-315346 rG 13 35 42.5120242608 -31 53 54.624697836   16.26   14.45 14.21 ~ 20 0
146 [VBM2000] J1335-3117 Rad 13 35 42.6 -31 17 52           ~ 1 0
147 [VBM2000] J1335-3140 Rad 13 35 43.5 -31 40 58           ~ 1 0
148 [VBM2000] J1335-3143b Rad 13 35 49.1 -31 43 44           ~ 1 0
149 [VBM2000] J1335-3153b Rad 13 35 49.5 -31 53 45           ~ 2 0
150 [VBM2000] J1335-3146 Rad 13 35 54.3 -31 46 34           ~ 1 0
151 [VBM2000] J1335-3200 Rad 13 35 54.6 -32 00 06           ~ 1 0
152 [VBM2000] J1336-3144 Rad 13 36 01.3 -31 44 00           ~ 1 0
153 [VBM2000] J1336-3146a Rad 13 36 02.8 -31 46 52           ~ 1 0
154 [VBM2000] J1336-3122a Rad 13 36 05.4 -31 22 28           ~ 1 0
155 [VBM2000] J1336-3140 Rad 13 36 09.6 -31 40 07           ~ 1 0
156 LEDA 3810640 Sy2 13 36 17.977 -31 46 45.80   15.73   14.26 14.29 ~ 16 0
157 LEDA 3082283 rG 13 36 18.6806470536 -31 48 31.354717968   16.15   15.01 14.99 ~ 9 0
158 [VBM2000] J1336-3205 Rad 13 36 28.2 -32 05 45           ~ 1 0
159 [VBM2000] J1336-3122b Rad 13 36 45.6 -31 22 26           ~ 1 0
160 [VBM2000] J1337-3204 Rad 13 37 17.5 -32 04 30           ~ 1 0
161 [VBM2000] J1337-3145 Rad 13 37 26.6 -31 45 24           ~ 1 0
162 NVSS J133746-314000 Rad 13 37 46.75 -31 39 59.7           ~ 2 1
163 NAME ACO 3558 Complex SCG ~ ~           ~ 10 1

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