2013A&A...555A.147W

Query : 2013A&A...555A.147W

2013A&A...555A.147W - Astronomy and Astrophysics, volume 555A147-147 (2013/7-1)

Probing the evolution of the substructure frequency in galaxy clusters up to z ∼ 1.

WEISSMANN A., BOEHRINGER H. and CHON G.

Abstract (from CDS):

Galaxy clusters are the last and largest objects to form in the standard hierarchical structure formation scenario through merging of smaller systems. The substructure frequency in the past and present epoch provides excellent means for studying the underlying cosmological model. Using X-ray observations, we study the substructure frequency as a function of redshift by quantifying and comparing the fraction of dynamically young clusters at different redshifts up to z=1.08. We are especially interested in possible biases due to the inconsistent data quality of the low-z and high-z samples. Two well-studied morphology estimators, power ratio P3/P0and center shift w, were used to quantify the dynamical state of 129 galaxy clusters, taking into account the different observational depth and noise levels of the observations. Owing to the sensitivity of P3/P0 to Poisson noise, it is essential to use datasets with similar photon statistics when studying the P3/P0-z relation. We degraded the high-quality data of the low-redshift sample to the low data quality of the high-z observations and found a shallow positive slope that is, however, not significant, indicating a slightly larger fraction of dynamically young objects at higher redshift. The w-z relation shows no significant dependence on the data quality and gives a similar result. We find a similar trend for P3/P0and w, namely a very mild increase of the disturbed cluster fraction with increasing redshifts. Within the significance limits, our findings are also consistent with no evolution.

Abstract Copyright: ∼

Journal keyword(s): X-rays: galaxies: clusters - galaxies: clusters: intracluster medium

Simbad objects: 133

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Number of rows : 133
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 ACT-CL J0000.9-5748 ClG 00 01 00 -57 48.5           ~ 57 0
2 ACO 2717 ClG 00 03 12.9 -35 56 13           ~ 146 0
3 ACO 2700 ClG 00 03 49.7 +02 03 59           ~ 94 0
4 ACO 2721 ClG 00 05 57.0 -34 43 09           ~ 99 0
5 ACO 13 ClG 00 13 38.5 -19 30 19           ~ 107 1
6 ACO 2744 ClG 00 14 20.03 -30 23 17.8           ~ 1077 0
7 ACO 22 ClG 00 20 41.4 -25 42 39           ~ 111 0
8 ClG J0030+2618 ClG 00 30 33.6 +26 18 16           ~ 65 0
9 ACO 68 ClG 00 37 06.2 +09 09 33           ~ 195 0
10 ACO S 84 ClG 00 49 23.2 -29 31 33           ~ 89 0
11 ACO 115 ClG 00 55 59 +26 23.2           ~ 295 1
12 ACO 133 ClG 01 02 41.5 -21 52 53           ~ 391 1
13 ACO 209 ClG 01 31 52.9 -13 36 53           ~ 326 0
14 ClG J0141-3034 ClG 01 41 32.3 -30 34 42           ~ 11 1
15 ACO 2941 ClG 01 45 03.60 -53 01 23.4           ~ 61 0
16 ClG J0152-1358 ClG 01 52 41.3 -13 58 13           ~ 262 3
17 ACO 267 ClG 01 52 43.016 +00 59 58.90           ~ 241 0
18 ClG J0159+0030 ClG 01 59 18.2 +00 30 09           ~ 36 0
19 ACO 2984 ClG 02 11 25.1 -40 17 29           ~ 53 0
20 BAX 036.2925-29.4731 ClG 02 25 08.6 -29 28 34           ~ 36 0
21 ClG J0230+1836 ClG 02 30 26.6 +18 36 22           ~ 22 0
22 ACT-CL J0232.2-4421 ClG 02 32 18.69 -44 20 41.5           ~ 130 0
23 ACO 383 ClG 02 48 03.3915 -03 31 45.228           ~ 389 0
24 ClG J0302-0423 ClG 03 02 21.3 -04 23 29           ~ 17 0
25 ACO 3088 ClG 03 07 02.12 -28 39 57.3           ~ 78 0
26 ACO 3112 ClG 03 17 52.9 -44 15 06           ~ 329 1
27 ClG J0318-0302 ClG 03 18 16.61 -03 01 59.4           ~ 27 0
28 ClG J0328-2140 ClG 03 28 36.1 -21 40 04           ~ 23 0
29 ClG J0333-2456 ClG 03 33 10.2 -24 56 41           ~ 17 0
30 ACO S 384 ClG 03 45 45.0 -41 10 42           ~ 40 0
31 ClG J0350-3801 ClG 03 50 43.9 -38 01 25           ~ 14 0
32 ClG J0355-3741 ClG 03 55 59.3 -37 41 46           ~ 19 0
33 ClG J0405-4100 ClG 04 05 24.3 -41 00 15           ~ 17 0
34 ACO 520 ClG 04 54 10.1 +02 55 38           ~ 465 0
35 ACT-CL J0509.3-5342 ClG 05 09 21.40 -53 42 12.3           ~ 62 0
36 ACO S 520 ClG 05 16 37.40 -54 30 01.5           ~ 114 0
37 ClG J0522-3624 ClG 05 22 13.8 -36 24 49           ~ 41 0
38 ACT-CL J0528-5259 ClG 05 28 05.30 -52 59 52.8           ~ 52 0
39 ACT-CL J0528.8-3927 ClG 05 28 56.2 -39 27 49           ~ 78 0
40 ACT-CL J0532.9-3701 ClG 05 32 56.4 -37 01 34           ~ 57 0
41 SPT-CL J0533-5005 ClG 05 33 37 -50 05.8           ~ 37 0
42 ClG J0542-4100 ClG 05 42 49.9 -40 59 58           ~ 67 0
43 ACT-CL J0546.6-5345 ClG 05 46 37.6557 -53 45 33.242           ~ 98 0
44 ACO 3364 ClG 05 47 38.1 -31 52 15           ~ 86 0
45 ACT-CL J0551.6-5709 ClG 05 51 36.000 -57 09 22.00           ~ 37 0
46 ACT-CL J0559.7-5249 ClG 05 59 43.20 -52 49 27.1           ~ 63 0
47 ACO 3378 ClG 06 05 53.7 -35 18 06           ~ 90 1
48 MARD J061720.6-475002 ClG 06 16 51.4 -47 47 41           ~ 39 0
49 ACO 3404 ClG 06 45 29.50 -54 13 37.0           ~ 109 0
50 ClG 0657-56 ClG 06 58 26.9 -55 58 21           ~ 1077 1
51 PKS 0745-19 rG 07 47 31.3247085936 -19 17 40.013334276   19.60       ~ 422 1
52 ClG 0745-1910 ClG 07 47 32.4 -19 18 23           ~ 378 0
53 ZwCl 0806+2822 ClG 08 09 41.0 +28 11 58           ~ 27 0
54 ACO 653 ClG 08 21 50.6 +01 11 49           ~ 47 0
55 ACO 665 ClG 08 30 45.2 +65 52 55           ~ 457 0
56 ClG J0853+5759 ClG 08 53 13.4 +57 59 44           ~ 27 0
57 ACO 773 ClG 09 17 51.3 +51 43 20           ~ 308 0
58 ClG J0926+1242 ClG 09 26 36.6 +12 42 59           ~ 43 0
59 ACO 868 ClG 09 45 28.1 -08 38 51           ~ 67 0
60 ClG J0956+4107 ClG 09 56 03.4 +41 07 14           ~ 44 0
61 ClG J0958+4702 ClG 09 58 19.3 +47 02 00   22       ~ 21 0
62 ACO 907 ClG 09 58 21.84 -11 03 47.5           ~ 137 0
63 ClG J1002+6858 ClG 10 02 07.7 +68 58 48           ~ 19 0
64 ClG J1003+3253 ClG 10 03 04.1 +32 54 28           ~ 34 0
65 ACO 963 ClG 10 17 03.4 +39 02 56           ~ 414 0
66 ZwCl 1021+0426 ClG 10 23 39.0 +04 11 14   15.6 17.95     ~ 297 0
67 ACO 1068 ClG 10 40 47.1 +39 57 19           ~ 232 0
68 ACO 1084 ClG 10 44 37.1 -07 04 47           ~ 78 0
69 ClG J1120+4318 ClG 11 20 07.6 +43 18 07           ~ 65 0
70 ClG J1120+2326 ClG 11 20 57.9 +23 26 41           ~ 42 0
71 ACO 1300 ClG 11 32 00.7 -19 53 34           ~ 168 0
72 ACO 1348 ClG 11 41 24.0 -12 16 00           ~ 70 0
73 ACO 1413 ClG 11 55 12.87 +23 23 46.9           ~ 456 0
74 ClG J1202+5751 ClG 12 02 13.7 +57 51 53           ~ 16 0
75 ACO 1489 ClG 12 12 19.2 +27 33 14           ~ 52 0
76 ClG J1221+4918 ClG 12 21 25.0 +49 18 07           ~ 60 0
77 SDSSCGB 65816 CGG 12 22 01.9 +27 09 19           ~ 18 0
78 ClG J1226+3332 ClG 12 26 57.7 +33 32 50           ~ 228 0
79 NAME Virgo A Cluster GrG 12 30 49.2 +12 23 30           ~ 154 0
80 ACO S 700 ClG 12 36 41.8 -33 55 01           ~ 33 0
81 ACO 1589 ClG 12 41 08.09 +18 33 18.5           ~ 112 0
82 ACO 1651 ClG 12 59 27.3 -04 10 49           ~ 307 0
83 ACO 1663 ClG 13 02 52.55 -02 31 04.0           ~ 112 0
84 ACO 1689 ClG 13 11 29.5 -01 20 28           ~ 1178 0
85 ClG J1312+3900 ClG 13 12 19.4 +39 00 58           ~ 18 0
86 ClG J1334+5031 ClG 13 34.0 +50 31           ~ 9 0
87 ZwCl 1332+5043 ClG 13 34 20.0 +50 30 54           ~ 42 0
88 ACO 1763 ClG 13 35 20.1 +41 00 04           ~ 335 0
89 ACO 1775 ClG 13 41 50.60 +26 21 10.6           ~ 324 0
90 ClG J1347-1145 ClG 13 47 30.5 -11 45 07           ~ 577 0
91 ClG J1354-0221 ClG 13 54 17.00 -02 22 13.1           ~ 52 0
92 ClG J1357+6232 ClG 13 57 19.4 +62 32 42           ~ 21 0
93 ACO 1837 ClG 14 01 36.2 -11 07 48           ~ 106 0
94 [VMF98] 158 ClG 14 16 28.1 +44 46 38           ~ 50 0
95 ACO 1914 ClG 14 25 57.4 +37 49 54           ~ 338 0
96 ZwCl 1455+2232 ClG 14 57 15.2 +22 20 30     18.62 20.04   ~ 309 0
97 ACO 2050 ClG 15 16 18.7 +00 05 31           ~ 122 0
98 ACO 2051 ClG 15 16 47.15 -01 00 32.8           ~ 68 0
99 ACO 2065 ClG 15 22 22.7 +27 44 20           ~ 398 0
100 ClG J1524+0957 ClG 15 24 40.3 +09 57 35           ~ 64 0
101 ACO 2163 ClG 16 15 46.1 -06 08 50           ~ 586 0
102 ACO 2204 ClG 16 32 47.7 +05 34 18           ~ 457 0
103 ACO 2218 ClG 16 35 54.0 +66 13 00           ~ 827 1
104 ClG J1641+4001 ClG 16 41 52.3 +40 01 29           ~ 43 0
105 ClG J1701+6414 ClG 17 01 22.6 +64 14 09           ~ 78 0
106 ACT-CL J2014.8-2430 ClG 20 14 49.7 -24 30 30           ~ 93 0
107 ACO S 868 ClG 20 22 59.5 -20 56 40           ~ 35 1
108 ACO 2328 ClG 20 48 09.8 -17 50 14           ~ 78 0
109 ClG J2129+0005 ClG 21 29 40.5 +00 05 47           ~ 308 0
110 ACO 3771 ClG 21 29 43.2 -50 48 34           ~ 50 0
111 ACO 3814 ClG 21 49 07.24 -30 42 06.4           ~ 60 0
112 ACO 2390 ClG 21 53 37.4 +17 41 46           ~ 732 2
113 ACO 2399 ClG 21 57 19.01 -07 50 57.5           ~ 197 0
114 ACO 3827 ClG 22 01 49.1 -59 57 15           ~ 178 0
115 ACO 3854 ClG 22 17 45.72 -35 43 31.4           ~ 75 0
116 ACO 3856 ClG 22 18 45.2 -38 53 57           ~ 87 2
117 ACO 3888 ClG 22 34 26.3 -37 44 29           ~ 151 1
118 ACO 3911 ClG 22 46 22.6 -52 44 21           ~ 73 0
119 ACO 3921 ClG 22 49 59.0 -64 25 48           ~ 165 1
120 ACO 2537 ClG 23 08 22.3 -02 11 29           ~ 152 0
121 ACO S 1101 ClG 23 13 58.5 -42 43 39           ~ 272 1
122 ACO 3992 ClG 23 19 41.8 -73 13 51           ~ 38 0
123 ACO 2597 ClG 23 25 19.70 -12 07 27.7           ~ 572 0
124 PSZSPT J2331-5052 ClG 23 31 51 -50 51.9           ~ 53 0
125 ACT-CL J2332.4-5358 ClG 23 32 26.70 -53 58 20.4           ~ 52 0
126 ACO 2626 ClG 23 36 31.0 +21 09 36           ~ 265 0
127 ACT-CL J2337.4-5942 ClG 23 37 24.2 -59 42 17           ~ 52 0
128 ACO 2631 ClG 23 37 40.7 +00 16 35           ~ 183 0
129 ACT-CL J2341.2-5119 ClG 23 41 12.3 -51 19 43           ~ 52 0
130 ACT-CL J2342.7-5411 ClG 23 42 45.6153 -54 11 11.527           ~ 44 0
131 ACO 2667 ClG 23 51 39.37 -26 05 02.7           ~ 190 0
132 ACT-CL J2355.7-5055 ClG 23 55 49.000 -50 56 13.00           ~ 37 0
133 ACT-CL J2359.7-5010 ClG 23 59 44 -50 10.2           ~ 38 0

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