2018MNRAS.480.1187B

Query : 2018MNRAS.480.1187B

2018MNRAS.480.1187B - Mon. Not. R. Astron. Soc., 480, 1187-1196 (2018/October-2)

Multi-object spectroscopy of CL1821+643: a dynamically relaxed cluster with a giant radio halo?

BOSCHIN W. and GIRARDI M.

Abstract (from CDS):

We present the study of the dynamical status of the galaxy cluster CL1821+643, a rare and intriguing cool-core cluster hosting a giant radio halo. We base our analysis on new spectroscopic data for 129 galaxies acquired at the Italian Telescopio Nazionale Galileo. We also use spectroscopic data available from the literature and photometric data from the Sloan Digital Sky Survey. We select 120 cluster member galaxies and compute the cluster redshift <z> ∼ 0.296 and the global line-of-sight velocity dispersion σV ∼ 1100 km s–1. The results of our analysis are consistent with CL1821+643 being a massive (M > 1015 M☉) dynamically relaxed cluster dominated by a big and luminous elliptical at the centre of the cluster potential well. None of the tests employed to study the cluster galaxies kinematics in the 1D (velocity information), 2D (spatial information), and 3D (combined velocity and spatial information) domains is able to detect significant substructures. While this picture is in agreement with previous results based on X-ray data and on the existence of the central cool core, we do not find any evidence of a merging process responsible for the radio halo discovered in this cluster. Thus, this radio halo remains an open problem that raises doubts about our understanding of diffuse radio sources in clusters.

Abstract Copyright: © 2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): galaxies: clusters: general - galaxies: clusters: individual: CL1821+643 - galaxies: kinematics and dynamics

VizieR on-line data: <Available at CDS (J/MNRAS/480/1187): table1.dat table2.dat table3.dat>

Simbad objects: 198

goto Full paper

goto View the references in ADS

Number of rows : 198
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 ACO 2744 ClG 00 14 20.03 -30 23 17.8           ~ 1077 0
2 PSZ1 G139.61+24.20 ClG 06 22 13.9 +74 41 39           ~ 34 0
3 ACO 1351 ClG 11 42 24.7795 +58 32 05.558           ~ 90 0
4 MCXC J1332.7+5032 ClG 13 32 44.8 +50 32 24           ~ 134 0
5 ACO 1995 ClG 14 52 55.0 +58 02 59           ~ 140 0
6 ACO 2142 ClG 15 58 26.5 +27 13 52           ~ 825 0
7 ACO 2254 ClG 17 17 45.90 +19 40 22.8           ~ 79 0
8 ACO 2261 ClG 17 22 26.9 +32 07 58           ~ 370 0
9 SDSS J182031.58+642024.1 G 18 20 31.589 +64 20 24.10   19.8       ~ 3 0
10 SDSS J182032.09+642219.0 G 18 20 32.09272 +64 22 18.9804   20.1       ~ 2 0
11 SDSS J182033.25+642212.2 G 18 20 33.26463 +64 22 12.2596   20.3       ~ 2 0
12 SDSS J182043.06+641945.8 G 18 20 43.0562165304 +64 19 45.805981692   19.4       ~ 3 0
13 SDSS J182053.43+641936.9 G 18 20 53.436 +64 19 36.94   18.6       ~ 4 0
14 SDSS J182056.87+642755.5 G 18 20 56.878 +64 27 55.52   18.3       ~ 4 0
15 SDSS J182106.38+642456.4 G 18 21 06.37940 +64 24 56.4176           ~ 1 0
16 SDSS J182107.51+642203.7 G 18 21 07.51560 +64 22 03.7236           ~ 1 0
17 SDSS J182108.58+642450.0 G 18 21 08.58451 +64 24 50.0975           ~ 1 0
18 SDSS J182113.24+642240.7 G 18 21 13.26885 +64 22 40.7383           ~ 1 0
19 SDSS J182113.80+642905.2 G 18 21 13.80096 +64 29 05.2044           ~ 1 0
20 SDSS J182114.78+641215.2 G 18 21 14.78640 +64 12 15.2676   20.9       ~ 2 0
21 SDSS J182116.22+642856.4 G 18 21 16.22088 +64 28 56.4168           ~ 1 0
22 SDSS J182116.58+642234.8 G 18 21 16.58988 +64 22 34.8243           ~ 1 0
23 SDSS J182117.89+642118.8 G 18 21 17.896 +64 21 18.85           ~ 2 0
24 SDSS J182120.04+642256.7 G 18 21 20.04620 +64 22 56.7489   20.2       ~ 2 0
25 SDSS J182121.15+642143.5 G 18 21 21.14691 +64 21 43.7092           ~ 1 0
26 SDSS J182121.99+642215.9 G 18 21 22.00234 +64 22 15.9670           ~ 1 0
27 SDSS J182122.38+642151.0 G 18 21 22.39217 +64 21 51.1282           ~ 1 0
28 SDSS J182122.47+642829.0 G 18 21 22.4629895352 +64 28 29.106230196   18.5       ~ 4 0
29 SDSS J182122.67+642729.8 G 18 21 22.67376 +64 27 29.8800           ~ 1 0
30 SDSS J182123.89+642143.7 G 18 21 23.89680 +64 21 43.7580           ~ 1 0
31 SDSS J182124.72+642839.5 G 18 21 24.72744 +64 28 39.5472           ~ 1 0
32 SDSS J182125.39+642921.6 G 18 21 25.39032 +64 29 21.6924           ~ 1 0
33 SDSS J182126.19+642306.3 G 18 21 26.19192 +64 23 06.3852           ~ 1 0
34 SDSS J182127.30+642052.7 G 18 21 27.30648 +64 20 52.7064           ~ 1 0
35 SDSS J182127.41+641210.4 G 18 21 27.42142 +64 12 10.4874   20.60       ~ 3 0
36 SDSS J182127.43+642155.9 G 18 21 27.43968 +64 21 55.9512           ~ 2 0
37 SDSS J182129.79+642740.9 G 18 21 29.81733 +64 27 40.9861   21.0       ~ 2 0
38 SDSS J182130.34+642041.7 G 18 21 30.34379 +64 20 41.7819   20.8       ~ 2 0
39 SDSS J182131.09+642816.5 G 18 21 31.09440 +64 28 16.5864           ~ 1 0
40 SDSS J182131.93+641758.5 G 18 21 31.93080 +64 17 58.5024           ~ 1 0
41 SDSS J182132.55+641832.0 G 18 21 32.55480 +64 18 32.0076           ~ 1 0
42 SDSS J182132.97+641940.7 G 18 21 32.97696 +64 19 40.7388           ~ 1 0
43 SDSS J182133.16+642018.6 G 18 21 33.16800 +64 20 18.6144           ~ 1 0
44 SDSS J182133.42+642602.9 G 18 21 33.43833 +64 26 02.9589           ~ 1 0
45 SDSS J182134.23+642058.1 G 18 21 34.23960 +64 20 58.1856           ~ 2 0
46 SDSS J182134.48+642030.2 G 18 21 34.48392 +64 20 30.2244   21.4       ~ 2 0
47 SDSS J182135.39+642524.6 G 18 21 35.393 +64 25 24.61           ~ 4 0
48 SDSS J182135.99+642548.2 G 18 21 35.9895802176 +64 25 48.219053592           ~ 2 0
49 SDSS J182136.37+641931.3 G 18 21 36.37392 +64 19 31.3896           ~ 1 0
50 SDSS J182136.71+642124.5 G 18 21 36.710 +64 21 24.58   19.10       ~ 4 0
51 SDSS J182136.73+642531.0 G 18 21 36.7182129336 +64 25 30.997354944           ~ 2 0
52 SDSS J182136.76+641838.4 G 18 21 36.76209 +64 18 38.4792           ~ 1 0
53 SDSS J182137.07+642328.4 G 18 21 37.07405 +64 23 28.3532   20.7       ~ 2 0
54 PSO J275.4045+64.3655 G 18 21 37.08126000 +64 21 55.9870560           ~ 1 0
55 SDSS J182137.50+642523.8 G 18 21 37.50576 +64 25 23.8728           ~ 1 0
56 SDSS J182137.72+642234.9 G 18 21 37.73068 +64 22 35.0453           ~ 1 0
57 SDSS J182137.99+642751.8 G 18 21 37.99398 +64 27 51.8292           ~ 1 0
58 SDSS J182138.79+642257.8 G 18 21 38.78789 +64 22 57.7954           ~ 1 0
59 SDSS J182138.90+642030.9 G 18 21 38.90631 +64 20 30.9271   19.8       ~ 3 0
60 SDSS J182139.36+642204.3 G 18 21 39.36813 +64 22 04.4029   20.5       ~ 2 0
61 SDSS J182139.57+641520.2 G 18 21 39.57714 +64 15 20.2974   20.7       ~ 2 0
62 SDSS J182139.99+642427.6 G 18 21 39.99480 +64 24 27.6840           ~ 1 0
63 SDSS J182140.01+642442.5 G 18 21 40.01736 +64 24 42.5052           ~ 1 0
64 SDSS J182140.71+641942.1 G 18 21 40.71329 +64 19 42.1828           ~ 1 0
65 SDSS J182141.12+641956.6 G 18 21 41.12664 +64 19 56.6436           ~ 1 0
66 SDSS J182141.25+642313.3 G 18 21 41.24656 +64 23 13.3816           ~ 1 0
67 SDSS J182141.87+642324.0 G 18 21 41.87160 +64 23 24.0432           ~ 1 0
68 SDSS J182142.89+642134.9 G 18 21 42.89880 +64 21 34.9956           ~ 1 0
69 SDSS J182143.18+642130.0 G 18 21 43.19039 +64 21 30.0120           ~ 2 0
70 SDSS J182143.37+642104.9 G 18 21 43.36692 +64 21 04.9279           ~ 2 0
71 SDSS J182143.71+642403.9 G 18 21 43.71264 +64 24 03.9672           ~ 1 0
72 SDSS J182144.45+642117.1 G 18 21 44.44437 +64 21 17.1785   19.9       ~ 3 0
73 SDSS J182144.69+642513.2 G 18 21 44.68841 +64 25 13.2605           ~ 1 0
74 SDSS J182144.86+642411.1 G 18 21 44.85898 +64 24 11.1397   20.3       ~ 2 0
75 SDSS J182145.32+641749.1 G 18 21 45.32688 +64 17 49.1748           ~ 1 0
76 SDSS J182146.01+642211.0 G 18 21 46.01886 +64 22 10.9686           ~ 2 0
77 SDSS J182147.70+642255.0 G 18 21 47.70840 +64 22 55.0776           ~ 1 0
78 SDSS J182147.78+642007.9 G 18 21 47.77417 +64 20 07.9091           ~ 3 0
79 SDSS J182148.32+641800.0 G 18 21 48.32097 +64 17 59.9975           ~ 1 0
80 SDSS J182148.41+641701.1 G 18 21 48.41160 +64 17 01.1904           ~ 1 0
81 SDSS J182148.75+642420.3 G 18 21 48.74462 +64 24 20.3228   20.9       ~ 2 0
82 SDSS J182149.53+642103.1 G 18 21 49.53624 +64 21 03.1068           ~ 2 0
83 SDSS J182150.10+641922.6 G 18 21 50.10528 +64 19 22.6812           ~ 1 0
84 SDSS J182150.58+641711.3 G 18 21 50.58120 +64 17 11.3568           ~ 1 0
85 SDSS J182151.16+642051.5 G 18 21 51.16128 +64 20 51.5112           ~ 3 0
86 PN K 1-16 PN 18 21 52.1086837968 +64 21 53.406292104   14.44 14.96 15.26   PG1159 258 0
87 SDSS J182152.81+642043.9 GiC 18 21 52.81464 +64 20 43.9260   21.3       ~ 4 0
88 SDSS J182153.13+642032.0 G 18 21 53.13768 +64 20 32.0208           ~ 2 0
89 SDSS J182153.38+642022.7 GiC 18 21 53.38104 +64 20 22.7796           ~ 4 0
90 SDSS J182154.06+642240.4 G 18 21 54.05965 +64 22 40.4989           ~ 1 0
91 SDSS J182154.27+642013.3 GiC 18 21 54.27360 +64 20 13.3728           ~ 4 0
92 SDSS J182154.33+641916.5 G 18 21 54.33912 +64 19 16.5828           ~ 1 0
93 LEDA 84884 G 18 21 54.45536 +64 20 09.4561   19.50       ~ 8 0
94 8C 1821+643B rG 18 21 54.95945 +64 21 17.2976   19.0       ~ 10 0
95 SDSS J182155.10+642004.4 G 18 21 55.12178 +64 20 04.3798           ~ 3 0
96 SDSS J182155.20+642341.2 G 18 21 55.20048 +64 23 41.2116           ~ 1 0
97 SDSS J182155.55+642010.4 G 18 21 55.55664 +64 20 10.4172           ~ 2 0
98 SDSS J182155.81+642002.4 G 18 21 55.81512 +64 20 02.4540           ~ 3 0
99 SDSS J182155.99+642100.8 GiC 18 21 55.99284 +64 21 00.8222   19.8       ~ 4 0
100 SDSS J182156.34+642250.2 G 18 21 56.34510 +64 22 50.2745   20.2       ~ 2 0
101 ClG 1821+64 ClG 18 21 56.7276 +64 20 55.841           ~ 511 1
102 SDSS J182156.92+642255.8 G 18 21 56.86714 +64 22 55.6474           ~ 1 0
103 SDSS J182157.09+642229.4 G 18 21 57.09816 +64 22 29.4528           ~ 1 0
104 7C 1821+6419 Sy1 18 21 57.2130271440 +64 20 36.221312076   14.23 14.24     ~ 632 1
105 [KSS94] J182157.2+642036 49 G 18 21 57.96 +64 20 44.1   20.9       ~ 3 0
106 SDSS J182158.05+642316.2 G 18 21 58.03960 +64 23 16.1109           ~ 1 0
107 SDSS J182158.26+642023.3 G 18 21 58.26336 +64 20 23.3520           ~ 2 0
108 SDSS J182158.52+641823.2 G 18 21 58.53160 +64 18 23.2741   20.9       ~ 2 0
109 SDSS J182158.72+642644.1 G 18 21 58.71822 +64 26 44.2763   21.3       ~ 2 0
110 SDSS J182158.83+642403.1 G 18 21 58.83312 +64 24 03.1716           ~ 1 0
111 SDSS J182158.86+642308.4 G 18 21 58.86179 +64 23 08.4295           ~ 1 0
112 SDSS J182159.35+642329.2 G 18 21 59.34576 +64 23 29.2392           ~ 1 0
113 SDSS J182159.41+641949.3 GiC 18 21 59.42931 +64 19 49.3949   21.4       ~ 5 0
114 SDSS J182159.99+641931.1 G 18 21 59.99280 +64 19 31.1988           ~ 2 0
115 SDSS J182200.02+641926.2 G 18 22 00.02472 +64 19 26.2272           ~ 2 0
116 SDSS J182200.35+641848.1 G 18 22 00.35342 +64 18 48.1483   21.1       ~ 2 0
117 SDSS J182200.35+642241.6 G 18 22 00.35520 +64 22 41.6028           ~ 1 0
118 SDSS J182201.09+642029.5 G 18 22 01.09536 +64 20 29.5224           ~ 3 0
119 SDSS J182201.13+641700.5 G 18 22 01.13208 +64 17 00.5676           ~ 1 0
120 SDSS J182201.21+641702.4 G 18 22 01.21573 +64 17 02.3991           ~ 1 0
121 SDSS J182201.48+642803.7 G 18 22 01.48320 +64 28 03.7236           ~ 1 0
122 SDSS J182202.14+641903.3 G 18 22 02.14224 +64 19 03.3924           ~ 1 0
123 SDSS J182202.39+642143.7 G 18 22 02.39640 +64 21 43.7112           ~ 2 0
124 SDSS J182202.68+642713.7 G 18 22 02.68820 +64 27 13.7251           ~ 1 0
125 SDSS J182202.70+642138.8 G 18 22 02.706 +64 21 38.88   18.30       ~ 10 0
126 SDSS J182202.85+642644.5 G 18 22 02.85048 +64 26 44.5308           ~ 1 0
127 SDSS J182203.13+642040.3 G 18 22 03.13248 +64 20 40.3152           ~ 2 0
128 SDSS J182203.25+642032.6 G 18 22 03.25920 +64 20 32.6508           ~ 2 0
129 SDSS J182203.53+642300.8 G 18 22 03.53576 +64 23 00.7376   19.8       ~ 2 0
130 SDSS J182203.63+642445.2 G 18 22 03.63504 +64 24 45.2916           ~ 1 0
131 SDSS J182203.94+642220.0 G 18 22 03.93775 +64 22 20.0845           ~ 2 0
132 SDSS J182204.54+642053.5 G 18 22 04.54776 +64 20 53.5308   22.20       ~ 4 0
133 SDSS J182204.95+642148.6 G 18 22 04.95864 +64 21 48.6036           ~ 2 0
134 SDSS J182205.23+641953.8 G 18 22 05.22841 +64 19 53.8037           ~ 2 0
135 SDSS J182206.20+642414.0 G 18 22 06.20472 +64 24 14.0976           ~ 1 0
136 SDSS J182206.72+641951.3 G 18 22 06.72384 +64 19 51.3696           ~ 3 0
137 SDSS J182207.43+642414.0 G 18 22 07.43640 +64 24 14.0400           ~ 1 0
138 SDSS J182207.57+642614.3 G 18 22 07.57032 +64 26 14.3520           ~ 1 0
139 SDSS J182207.86+642150.6 G 18 22 07.86480 +64 21 50.6196           ~ 2 0
140 SDSS J182208.14+641845.5 G 18 22 08.14632 +64 18 45.5400           ~ 1 0
141 SDSS J182209.19+641734.7 G 18 22 09.19107 +64 17 34.7639           ~ 1 0
142 SDSS J182210.36+641714.8 G 18 22 10.35727 +64 17 14.8055           ~ 2 0
143 SDSS J182210.63+642030.6 G 18 22 10.63386 +64 20 30.6265           ~ 2 0
144 SDSS J182210.97+642049.8 G 18 22 10.97669 +64 20 49.7902           ~ 1 0
145 SDSS J182211.18+642120.3 G 18 22 11.19111 +64 21 20.3197           ~ 1 0
146 SDSS J182211.33+642850.3 G 18 22 11.33256 +64 28 50.3076   20.8       ~ 2 0
147 SDSS J182212.33+642007.9 G 18 22 12.33456 +64 20 07.9188           ~ 1 0
148 SDSS J182212.41+642210.8 G 18 22 12.41112 +64 22 10.8804           ~ 1 0
149 SDSS J182212.61+642631.3 G 18 22 12.62764 +64 26 31.4123   20.2       ~ 2 0
150 SDSS J182213.67+642016.4 G 18 22 13.67136 +64 20 16.4796           ~ 2 0
151 SDSS J182213.78+641811.3 G 18 22 13.78872 +64 18 11.3112           ~ 1 0
152 SDSS J182217.41+642042.2 G 18 22 17.40902 +64 20 42.3025           ~ 1 0
153 SDSS J182219.21+641843.1 G 18 22 19.21464 +64 18 43.1424   20.8       ~ 2 0
154 SDSS J182219.92+642334.6 G 18 22 19.92654 +64 23 34.6609   20.7       ~ 2 0
155 SDSS J182219.97+642149.4 G 18 22 19.97328 +64 21 49.4244   20.8       ~ 2 0
156 SDSS J182220.58+641820.8 G 18 22 20.58714 +64 18 20.8156           ~ 1 0
157 LEDA 2668170 G 18 22 20.9474915328 +64 26 51.007973604   18.1       ~ 5 0
158 SDSS J182221.24+641721.1 G 18 22 21.22012 +64 17 21.1944           ~ 1 0
159 SDSS J182221.38+641333.7 G 18 22 21.38784 +64 13 33.7548           ~ 1 0
160 SDSS J182221.93+642126.3 G 18 22 21.93624 +64 21 26.3952           ~ 1 0
161 SDSS J182225.20+642244.9 G 18 22 25.20591 +64 22 44.8828   19.9       ~ 2 0
162 SDSS J182226.95+641535.3 G 18 22 26.96017 +64 15 35.4577           ~ 1 0
163 SDSS J182227.37+641819.6 G 18 22 27.37032 +64 18 19.6524           ~ 2 0
164 SDSS J182228.21+642043.1 G 18 22 28.25867 +64 20 43.0033           ~ 2 0
165 SDSS J182229.74+642308.1 G 18 22 29.748 +64 23 08.18   19.1       ~ 3 0
166 SDSS J182230.13+641315.6 G 18 22 30.12574 +64 13 15.6658   20.6       ~ 2 0
167 SDSS J182230.35+642001.8 G 18 22 30.34098 +64 20 01.8723           ~ 1 0
168 SDSS J182231.94+641938.9 G 18 22 31.94091 +64 19 38.9605           ~ 2 0
169 SDSS J182232.36+641438.1 G 18 22 32.36472 +64 14 38.1912           ~ 1 0
170 SDSS J182232.60+641245.2 G 18 22 32.60568 +64 12 45.2124           ~ 1 0
171 SDSS J182232.87+641822.0 G 18 22 32.87784 +64 18 22.0392           ~ 1 0
172 SDSS J182233.20+641850.3 G 18 22 33.20244 +64 18 50.2727   21.1       ~ 2 0
173 SDSS J182233.21+641432.9 G 18 22 33.21000 +64 14 32.9532           ~ 1 0
174 SDSS J182234.61+642055.8 G 18 22 34.61520 +64 20 55.8636           ~ 2 0
175 SDSS J182235.62+641859.7 G 18 22 35.62608 +64 18 59.7816           ~ 1 0
176 SDSS J182235.69+641640.6 G 18 22 35.69897 +64 16 40.5911           ~ 1 0
177 SDSS J182236.39+641449.5 G 18 22 36.39408 +64 14 49.5996           ~ 1 0
178 SDSS J182240.09+641921.2 G 18 22 40.09934 +64 19 21.2523           ~ 1 0
179 SDSS J182241.05+641953.2 G 18 22 41.05728 +64 19 53.2164           ~ 1 0
180 SDSS J182241.15+641459.7 G 18 22 41.15228 +64 14 59.7498           ~ 1 0
181 SDSS J182241.21+641851.9 G 18 22 41.21448 +64 18 51.9624           ~ 1 0
182 SDSS J182242.50+641715.0 G 18 22 42.51465 +64 17 15.0595           ~ 1 0
183 SDSS J182243.12+641319.0 G 18 22 43.12320 +64 13 19.0056           ~ 1 0
184 SDSS J182243.89+641624.0 G 18 22 43.89192 +64 16 24.0960           ~ 1 0
185 SDSS J182248.41+641759.4 G 18 22 48.41304 +64 17 59.4816           ~ 1 0
186 SDSS J182249.09+641411.6 G 18 22 49.09194 +64 14 11.5746           ~ 1 0
187 SDSS J182249.59+641944.4 G 18 22 49.59840 +64 19 44.4216           ~ 1 0
188 SDSS J182249.63+641606.9 G 18 22 49.61281 +64 16 07.0259           ~ 1 0
189 SDSS J182249.85+641928.1 G 18 22 49.855 +64 19 28.12           ~ 3 0
190 SDSS J182252.49+641738.6 G 18 22 52.49544 +64 17 38.6736           ~ 1 0
191 SDSS J182255.74+641401.7 G 18 22 55.74679 +64 14 01.7694           ~ 1 0
192 SDSS J182257.05+641507.5 G 18 22 57.05736 +64 15 07.5600           ~ 1 0
193 SDSS J182302.99+641346.1 G 18 23 02.99112 +64 13 46.1964           ~ 1 0
194 SDSS J182303.59+641301.2 G 18 23 03.59751 +64 13 01.2499           ~ 1 0
195 SDSS J182306.64+641809.9 G 18 23 06.64416 +64 18 09.9036           ~ 1 0
196 SDSS J182316.49+641722.6 G 18 23 16.48540 +64 17 22.7061           ~ 1 0
197 [VV2006] J182319.2+641931 QSO 18 23 19.2823161576 +64 19 31.000310184   18.2   18.5   ~ 8 0
198 ACO 2390 ClG 21 53 37.4 +17 41 46           ~ 732 2

To bookmark this query, right click on this link: simbad:objects in 2018MNRAS.480.1187B and select 'bookmark this link' or equivalent in the popup menu