2013MNRAS.434..772B

Query : 2013MNRAS.434..772B

2013MNRAS.434..772B - Mon. Not. R. Astron. Soc., 434, 772-783 (2013/September-1)

The dynamical status of ZwCl 2341.1+0000: a very elongated galaxy structure with a complex radio emission.

BOSCHIN W., GIRARDI M. and BARRENA R.

Abstract (from CDS):

We study the dynamical status of the galaxy system ZwCl 2341.1+0000, a filamentary multi-Mpc galaxy structure associated with a complex diffuse radio emission.

Our analysis is mainly based on new spectroscopic data for 128 galaxies acquired at the Italian Telescopio Nazionale Galileo. We also use optical data available in the Sloan Digital Sky Survey and X-ray data from the Chandra archive.

We select 101 cluster member galaxies and compute the cluster redshift <z> ∼ 0.2693 and the global line-of-sight velocity dispersion σV ∼ 1000 km s-1.

Our optical analysis agrees with the presence of at least three, likely four or more, optical subclusters causing the south-south-east-north-north-west (SSE-NNW) elongation of the galaxy distribution and a significant velocity gradient in the south-north direction. In particular, we detect an important low-velocity subclump in the southern region, roughly coincident with the brightest peak of the diffuse radio emission but with a clear offset between the optical and radio peaks. We also detect one (or two) optical subcluster(s) at north, in correspondence with the second brightest radio emission, and another one in the central cluster region, where a third diffuse radio source has been recently detected. A more refined analysis involving the study of the 2D galaxy distribution suggests an even more complex structure. Depending on the adopted model, we obtain a mass estimate Msys ∼ 1-3 × 10^15 h_70^-1 M_☉ for the whole system.

As for the X-ray analysis, we confirm the SSE-NNW elongation of the intracluster medium and detect four significant peaks. The X-ray emission is strongly asymmetric and offsetted with respect to the galaxy distribution, thus suggesting a merger caught in the phase of post-core-core passage.

Our findings support two possible hypotheses for the nature of the diffuse radio emission of ZwCl 2341.1+0000: a two relics + halo scenario or diffuse emission associated with the infall and merging of several galaxy groups during the first phase of the cluster formation.


Abstract Copyright: © 2013 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2013)

Journal keyword(s): galaxies: clusters: general - galaxies: clusters: individual: ZwCl 2341.1+0000 - galaxies: kinematics and dynamics - X-rays: galaxies: clusters

VizieR on-line data: <Available at CDS (J/MNRAS/434/772): table1.dat>

Nomenclature: Table 1: [BGB2013b] NNN (Nos 1-128).

Simbad objects: 140

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Number of rows : 140
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 2744 ClG 00 14 20.03 -30 23 17.8           ~ 813 0
2 ACO 399 ClG 02 57 56.4 +13 00 59           ~ 396 0
3 ACO 1656 ClG 12 59 44.40 +27 54 44.9           ~ 4803 2
4 ACO 2256 ClG 17 03 09.4 +78 39 36           ~ 885 1
5 ACO 2255 ClG 17 12 50.04 +64 03 10.6           ~ 568 0
6 ACO 3667 ClG 20 12 33.68 -56 50 26.3           ~ 627 1
7 SDSS CE 355.744965-00.175613 ClG 23 42 58.792 -00 10 32.21           ~ 3 0
8 SDSS J234321.19+001847.1 G 23 43 21.196 +00 18 47.15           ~ 2 0
9 [BEM2002] G4 BiC 23 43 21.6960160584 +00 19 33.061751580           ~ 8 0
10 DES J234322.48+001851.2 GiC 23 43 22.483 +00 18 51.24           ~ 3 0
11 SDSS J234326.84+002011.9 G 23 43 26.847 +00 20 11.90           ~ 2 0
12 SDSS J234326.93+001949.3 G 23 43 26.938 +00 19 49.30           ~ 2 0
13 DES J234327.12+001858.7 GiC 23 43 27.127 +00 18 58.71           ~ 3 0
14 [BGB2013b] 7 G 23 43 28.03 +00 21 29.3           ~ 1 0
15 DES J234328.18+001952.4 GiC 23 43 28.182 +00 19 52.45           ~ 3 0
16 DES J234328.74+001835.4 GiC 23 43 28.747 +00 18 35.50           ~ 3 0
17 [BGB2013b] 10 G 23 43 29.00945 +00 19 49.3566           ~ 2 0
18 SDSS J234330.81+002044.9 G 23 43 30.814 +00 20 44.95           ~ 2 0
19 SDSS J234331.02+002136.1 G 23 43 31.0250095272 +00 21 36.074109420           ~ 3 0
20 [BGB2013b] 13 G 23 43 31.50 +00 20 41.8           ~ 1 0
21 DES J234331.61+001913.3 GiC 23 43 31.612 +00 19 13.32           ~ 4 0
22 [BGB2013b] 15 G 23 43 32.21810 +00 21 08.4872           ~ 2 0
23 DES J234332.63+002138.4 GiC 23 43 32.6283028560 +00 21 38.437261668           ~ 4 0
24 DES J234332.67+001542.8 GiC 23 43 32.672 +00 15 42.83           ~ 3 0
25 [BGB2013b] 18 G 23 43 32.97 +00 14 57.6           ~ 1 0
26 DES J234333.06+002126.9 GiC 23 43 33.068 +00 21 26.94           ~ 4 0
27 [BGB2013b] 20 GiC 23 43 34.6661407392 +00 20 37.398278148           ~ 5 0
28 DES J234335.16+002126.9 GiC 23 43 35.163 +00 21 26.98           ~ 4 0
29 SDSS J234335.52+001502.4 G 23 43 35.520 +00 15 02.44           ~ 3 0
30 SDSS J234335.66+001951.3 BiC 23 43 35.6657746968 +00 19 51.356482860           ~ 6 0
31 [BGB2013b] 24 G 23 43 35.68178 +00 20 59.6000           ~ 2 0
32 SDSS J234335.81+002144.7 G 23 43 35.814 +00 21 44.78           ~ 3 0
33 [BGB2013b] 26 G 23 43 35.83 +00 14 23.0           ~ 1 0
34 DES J234335.85+001934.6 GiC 23 43 35.856 +00 19 34.67           ~ 4 0
35 [BGB2013b] 28 G 23 43 36.56299 +00 18 39.9569           ~ 2 0
36 [BGB2013b] 29 G 23 43 36.97 +00 21 41.2           ~ 1 0
37 DES J234337.48+001712.5 GiC 23 43 37.4790150672 +00 17 12.607935036           ~ 4 0
38 SDSS J234337.84+001709.6 G 23 43 37.8404964312 +00 17 09.611723112           ~ 3 0
39 DES J234338.26+001945.5 GiC 23 43 38.2648740672 +00 19 45.517843920           ~ 5 0
40 DES J234338.27+001810.7 GiC 23 43 38.271 +00 18 10.72           ~ 4 0
41 [BGB2013b] 34 G 23 43 38.45 +00 12 54.2           ~ 1 0
42 [VRB2009b] A Rad 23 43 39.30 +00 18 43.6           ~ 2 0
43 SDSS J234339.37+001404.1 G 23 43 39.378 +00 14 04.17           ~ 3 0
44 SDSS J234339.83+001839.4 G 23 43 39.830 +00 18 39.42           ~ 3 0
45 DES J234340.07+001822.2 GiC 23 43 40.0707224040 +00 18 22.266772632           ~ 4 0
46 [VRB2009b] B Rad 23 43 40.30 +00 20 52.8           ~ 2 0
47 SDSS J234340.33+001612.2 G 23 43 40.333 +00 16 12.23           ~ 3 0
48 DES J234340.37+002053.6 GiC 23 43 40.3729824672 +00 20 53.640760668           ~ 4 0
49 ZwCl 2341+0000 ClG 23 43 40.566 +00 18 18.94           ~ 70 0
50 SDSS J234340.60+001953.5 G 23 43 40.607 +00 19 53.53           ~ 2 0
51 2XMM J234340.7+002030 Sy1 23 43 40.745 +00 20 30.08   20.27 19.51     ~ 9 0
52 DES J234340.82+001844.7 GiC 23 43 40.821 +00 18 44.76           ~ 4 0
53 SDSS J234341.07+001346.5 G 23 43 41.079 +00 13 46.54           ~ 3 0
54 SDSS J234341.22+001634.9 G 23 43 41.227 +00 16 34.92           ~ 2 0
55 DES J234341.24+001652.6 GiC 23 43 41.2422664128 +00 16 52.602188124           ~ 4 0
56 SDSS J234341.28+001705.2 G 23 43 41.289 +00 17 05.25           ~ 2 0
57 SDSS J234341.42+001821.1 G 23 43 41.428 +00 18 21.13           ~ 2 0
58 SDSS J234341.57+001918.5 G 23 43 41.570 +00 19 18.50           ~ 3 0
59 DES J234341.60+001715.2 GiC 23 43 41.601 +00 17 15.23           ~ 4 0
60 SDSS J234341.79+001726.0 G 23 43 41.797 +00 17 26.04           ~ 3 0
61 DES J234341.86+001803.2 GiC 23 43 41.866 +00 18 03.25           ~ 4 0
62 DES J234341.94+001757.2 GiC 23 43 41.944 +00 17 57.21           ~ 4 0
63 SDSS J234342.01+001809.8 G 23 43 42.019 +00 18 09.84           ~ 2 0
64 SDSS J234342.14+001614.8 G 23 43 42.148 +00 16 14.81           ~ 3 0
65 DES J234342.49+001943.8 GiC 23 43 42.498 +00 19 43.85           ~ 4 0
66 SDSS J234342.75+001407.9 G 23 43 42.752 +00 14 07.93           ~ 3 0
67 DES J234343.08+002027.1 GiC 23 43 43.087 +00 20 27.20           ~ 3 0
68 SDSS J234343.55+001148.0 G 23 43 43.555 +00 11 48.06           ~ 3 0
69 SDSS J234343.88+002037.8 G 23 43 43.884 +00 20 37.83           ~ 3 0
70 DES J234343.97+001804.1 GiC 23 43 43.972 +00 18 04.12           ~ 4 0
71 SDSS J234344.02+002042.5 G 23 43 44.025 +00 20 42.54           ~ 3 0
72 SDSS J234344.13+001548.7 G 23 43 44.134 +00 15 48.72           ~ 3 0
73 SDSS J234344.44+001300.9 G 23 43 44.448 +00 13 00.94           ~ 3 0
74 SDSS J234344.60+001556.5 G 23 43 44.605 +00 15 56.52           ~ 3 0
75 DES J234345.14+001934.3 GiC 23 43 45.1405294416 +00 19 34.285272708           ~ 4 0
76 [BGB2013b] 66 G 23 43 45.26431 +00 12 19.7245           ~ 2 0
77 DES J234345.38+001739.8 GiC 23 43 45.383 +00 17 39.88           ~ 4 0
78 DES J234345.39+001442.0 GiC 23 43 45.396 +00 14 42.08           ~ 4 0
79 [BGB2013b] 69 G 23 43 45.49658 +00 14 23.3860           ~ 2 0
80 DES J234345.60+001444.4 GiC 23 43 45.6066904272 +00 14 44.460844080           ~ 4 0
81 SDSS J234345.67+001245.8 G 23 43 45.672 +00 12 45.84           ~ 3 0
82 [VRB2009b] G Rad 23 43 45.80 +00 16 05.8           ~ 2 0
83 SDSS J234345.96+001534.3 BiC 23 43 45.960 +00 15 34.23           ~ 3 0
84 SDSS J234345.96+001615.5 G 23 43 45.9678815880 +00 16 15.504125196           ~ 3 0
85 DES J234346.03+001645.9 GiC 23 43 46.038 +00 16 45.92           ~ 4 0
86 SDSS J234346.17+001500.3 G 23 43 46.172 +00 15 00.38           ~ 2 0
87 SDSS J234346.46+001437.0 G 23 43 46.469 +00 14 37.08           ~ 3 0
88 DES J234346.49+001724.8 GiC 23 43 46.497 +00 17 24.82           ~ 4 0
89 SDSS J234346.60+001758.8 G 23 43 46.606 +00 17 58.85           ~ 3 0
90 [BGB2013b] 79 G 23 43 46.84452 +00 11 55.0027           ~ 2 0
91 DES J234346.88+001453.9 GiC 23 43 46.883 +00 14 53.92           ~ 4 0
92 DES J234347.00+001807.1 GiC 23 43 47.002 +00 18 07.17           ~ 4 0
93 [BGB2013b] 82 G 23 43 47.02193 +00 12 47.1439           ~ 2 0
94 SDSS J234347.10+001600.2 G 23 43 47.106 +00 16 00.20           ~ 3 0
95 SDSS J234347.21+001805.3 G 23 43 47.211 +00 18 05.30           ~ 2 0
96 SDSS J234347.27+001520.2 G 23 43 47.277 +00 15 20.22           ~ 3 0
97 SDSS J234347.29+001053.1 G 23 43 47.2958214384 +00 10 53.136024384           ~ 3 0
98 SDSS J234347.31+001655.9 G 23 43 47.310 +00 16 55.99           ~ 3 0
99 SDSS J234347.36+001607.5 G 23 43 47.364 +00 16 07.55           ~ 3 0
100 SDSS J234347.42+001953.4 G 23 43 47.423 +00 19 53.49           ~ 3 0
101 [BGB2013b] 90 G 23 43 47.47056 +00 11 52.2630           ~ 2 0
102 SDSS J234347.53+001524.0 rG 23 43 47.535 +00 15 23.99           ~ 5 0
103 [BGB2013b] 92 G 23 43 47.57 +00 14 21.8           ~ 1 0
104 SDSS J234347.65+001548.6 G 23 43 47.656 +00 15 48.67           ~ 2 0
105 SDSS J234347.81+001633.8 G 23 43 47.8149847776 +00 16 33.770162640           ~ 3 0
106 SDSS J234347.96+001556.1 G 23 43 47.969 +00 15 56.19           ~ 3 0
107 SDSS J234347.98+001401.2 G 23 43 47.982 +00 14 01.27           ~ 3 0
108 SDSS J234348.14+001414.3 G 23 43 48.142 +00 14 14.36           ~ 3 0
109 DES J234348.14+001846.0 GiC 23 43 48.144 +00 18 46.08           ~ 4 0
110 SDSS J234348.28+002010.1 G 23 43 48.287 +00 20 10.10           ~ 3 0
111 SDSS J234348.49+001248.5 G 23 43 48.492 +00 12 48.52           ~ 2 0
112 DES J234348.53+001507.5 GiC 23 43 48.5344131936 +00 15 07.522697844           ~ 3 0
113 SDSS J234349.03+001548.3 G 23 43 49.034 +00 15 48.38           ~ 3 0
114 SDSS J234349.08+001537.4 G 23 43 49.0808573328 +00 15 37.472115276           ~ 3 0
115 SDSS J234349.28+002017.4 G 23 43 49.286 +00 20 17.43           ~ 2 0
116 SDSS J234349.40+001606.6 G 23 43 49.407 +00 16 06.68           ~ 3 0
117 [BGB2013b] 106 G 23 43 50.74 +00 15 47.4           ~ 2 0
118 SDSS J234350.85+002005.2 G 23 43 50.851 +00 20 05.24           ~ 2 0
119 SDSS J234351.14+001137.0 G 23 43 51.147 +00 11 37.05           ~ 3 0
120 [BGB2013b] 109 G 23 43 51.45 +00 17 18.1           ~ 1 0
121 SDSS J234352.23+002045.7 G 23 43 52.238 +00 20 45.74           ~ 3 0
122 [BGB2013b] 110 G 23 43 52.25 +00 11 21.5           ~ 1 0
123 [BGB2013b] 112 G 23 43 52.47396 +00 20 18.8663           ~ 2 0
124 [BGB2013b] 113 G 23 43 52.73 +00 17 08.8           ~ 1 0
125 DES J234353.25+001725.8 GiC 23 43 53.250 +00 17 25.90           ~ 3 0
126 SDSS J234353.84+001716.6 G 23 43 53.843 +00 17 16.63           ~ 2 0
127 SDSS J234354.59+001728.0 G 23 43 54.592 +00 17 28.05           ~ 3 0
128 SDSS J234354.60+001450.8 G 23 43 54.606 +00 14 50.83           ~ 2 0
129 [BGB2013b] 118 G 23 43 54.87 +00 15 14.6           ~ 1 0
130 SDSS J234355.00+001436.2 G 23 43 55.009 +00 14 36.21           ~ 3 0
131 SDSS J234355.79+001425.6 G 23 43 55.7885106840 +00 14 25.745173512           ~ 3 0
132 [BGB2013b] 121 G 23 43 55.82 +00 17 23.8           ~ 1 0
133 [BGB2013b] 122 G 23 43 55.97 +00 12 29.2           ~ 1 0
134 SDSS J234357.10+001723.2 G 23 43 57.108 +00 17 23.27           ~ 2 0
135 [BGB2013b] 124 G 23 43 58.56101 +00 14 59.3454           ~ 2 0
136 [BGB2013b] 125 G 23 44 00.77 +00 17 20.6           ~ 1 0
137 SDSS J234401.02+001555.2 G 23 44 01.024 +00 15 55.23           ~ 2 0
138 [BGB2013b] 127 G 23 44 01.54 +00 17 23.8           ~ 1 0
139 SDSS J234404.61+001456.6 G 23 44 04.617 +00 14 56.66           ~ 2 0
140 SDSS CE 356.199097-00.084485 ClG 23 44 47.783 -00 05 04.15           ~ 2 0

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