2020A&A...636A..15M

Query : 2020A&A...636A..15M

2020A&A...636A..15M - Astronomy and Astrophysics, volume 636A15-15 (2020/4-1)

Probing cosmic isotropy with a new X-ray galaxy cluster sample through the LX-T scaling relation.

MIGKAS K., SCHELLENBERGER G., REIPRICH T.H., PACAUD F., RAMOS-CEJA M.E. and LOVISARI L.

Abstract (from CDS):

The isotropy of the late Universe and consequently of the X-ray galaxy cluster scaling relations is an assumption greatly used in astronomy. However, within the last decade, many studies have reported deviations from isotropy when using various cosmological probes; a definitive conclusion has yet to be made. New, effective and independent methods to robustly test the cosmic isotropy are of crucial importance. In this work, we use such a method. Specifically, we investigate the directional behavior of the X-ray luminosity-temperature (LX-T) relation of galaxy clusters. A tight correlation is known to exist between the luminosity and temperature of the X-ray-emitting intracluster medium of galaxy clusters. While the measured luminosity depends on the underlying cosmology through the luminosity distance DL, the temperature can be determined without any cosmological assumptions. By exploiting this property and the homogeneous sky coverage of X-ray galaxy cluster samples, one can effectively test the isotropy of cosmological parameters over the full extragalactic sky, which is perfectly mirrored in the behavior of the normalization A of the LX-T relation. To do so, we used 313 homogeneously selected X-ray galaxy clusters from the Meta-Catalogue of X-ray detected Clusters of galaxies. We thoroughly performed additional cleaning in the measured parameters and obtain core-excised temperature measurements for all of the 313 clusters. The behavior of the LX-T relation heavily depends on the direction of the sky, which is consistent with previous studies. Strong anisotropies are detected at a≥4σ confidence level toward the Galactic coordinates (l, b)~(280°, -20°), which is roughly consistent with the results of other probes, such as Supernovae Ia. Several effects that could potentially explain these strong anisotropies were examined. Such effects are, for example, the X-ray absorption treatment, the effect of galaxy groups and low redshift clusters, core metallicities, and apparent correlations with other cluster properties, but none is able to explain the obtained results. Analyzing 105 bootstrap realizations confirms the large statistical significance of the anisotropic behavior of this sky region. Interestingly, the two cluster samples previously used in the literature for this test appear to have a similar behavior throughout the sky, while being fully independent of each other and of our sample. Combining all three samples results in 842 different galaxy clusters with luminosity and temperature measurements. Performing a joint analysis, the final anisotropy is further intensified (∼5σ), toward (l, b)~(303°, -27°), which is in very good agreement with other cosmological probes. The maximum variation of DL seems to be ∼16±3% for different regions in the sky. This result demonstrates that X-ray studies that assume perfect isotropy in the properties of galaxy clusters and their scaling relations can produce strongly biased results whether the underlying reason is cosmological or related to X-rays. The identification of the exact nature of these anisotropies is therefore crucial for any statistical cluster physics or cosmology study.

Abstract Copyright: © ESO 2020

Journal keyword(s): cosmology: observations - X-rays: galaxies: clusters - large-scale structure of Universe - galaxies: clusters: general - methods: statistical - catalogs

VizieR on-line data: <Available at CDS (J/A+A/636/A15): tablec1.dat>

Simbad objects: 329

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Number of rows : 329
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 2717 ClG 00 03 12.9 -35 56 13           ~ 146 0
2 ACO 2721 ClG 00 05 57.0 -34 43 09           ~ 99 0
3 ACO 2734 ClG 00 11 21.60 -28 51 16.6           ~ 156 0
4 ACO 7 ClG 00 11 43.134 +32 24 46.55           ~ 82 0
5 NVSS J001145+322542 Rad 00 11 46.3 +32 25 46           ~ 67 1
6 ACO S 15 ClG 00 12 44 -17 13.3           ~ 3 0
7 ACO 13 ClG 00 13 38.5 -19 30 19           ~ 107 1
8 ACO 21 ClG 00 20 38.75 +28 41 40.5           ~ 122 0
9 ACO 22 ClG 00 20 41.4 -25 42 39           ~ 111 0
10 NAME Magellanic Stream HVC 00 32 -30.0           ~ 1079 1
11 ACO 76 ClG 00 40 16.1031 +06 52 46.226           ~ 138 2
12 ACO 85 ClG 00 41 36.21 -09 19 30.4           ~ 974 0
13 ACO 2811 ClG 00 42 08.82 -28 32 08.8           ~ 78 0
14 ZwCl 0040+2404 ClG 00 43 52.0 +24 24 21     17.2     ~ 42 0
15 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
16 ACO 2837 ClG 00 52 40.6 -80 15 43           ~ 20 0
17 ACO 119 ClG 00 56 08.57 -01 12 00.8           ~ 577 2
18 ACO S 112 ClG 00 57 52.9 -66 47 50           ~ 17 0
19 ACO 133 ClG 01 02 41.5 -21 52 53           ~ 391 1
20 NAME NGC 383 Group GrG 01 07 27.7 +32 23 59   11.1 14.1     ~ 85 0
21 ACO 2877 ClG 01 09 49.3 -45 54 02           ~ 160 2
22 ACO 168 ClG 01 15 07.58 +00 19 10.8           ~ 379 2
23 ZwCl 0118-1408 ClG 01 20 58.78 -13 51 07.0           ~ 28 0
24 BAX 020.7979+33.4606 ClG 01 23 11.3 +33 27 36           ~ 34 0
25 ZwCl 0120+3300 ClG 01 23 36.9 +33 15 03           ~ 80 0
26 ACO 189 ClG 01 23 40.4 +01 38 38           ~ 103 1
27 ACO 193 ClG 01 25 07.3 +08 41 36           ~ 192 0
28 ACO 194 ClG 01 26 01.3 -01 22 02           ~ 363 2
29 ACO 209 ClG 01 31 52.9 -13 36 53           ~ 326 0
30 ACO 2941 ClG 01 45 03.60 -53 01 23.4           ~ 61 0
31 ACO 262 ClG 01 52 50.4 +36 08 46           ~ 727 1
32 BAX 037.0388+28.1825 ClG 02 28 09.6 +28 11 39           ~ 16 0
33 ACO 376 ClG 02 45 48 +36 51.6           B8.5 161 1
34 ACO S 301 ClG 02 49 33.72 -31 11 23.2           ~ 70 2
35 NGC 1132 EmG 02 52 51.82 -01 16 29.0   13.9   12.16   ~ 180 0
36 ACO 400 ClG 02 57 37.4 +06 00 45           ~ 408 3
37 ACO 399 ClG 02 57 56.4 +13 00 59           ~ 420 0
38 ACO 401 ClG 02 58 50.3 +13 34 07           ~ 592 0
39 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7988 0
40 ACO 407 ClG 03 01 43.7 +35 49 48           ~ 113 0
41 NAME Magellanic Bridge HI 03 11 -77.5           ~ 522 1
42 ACO 3104 ClG 03 14 24.48 -45 25 25.5           ~ 43 0
43 ACO 3112 ClG 03 17 52.9 -44 15 06           ~ 329 1
44 ACO 3122 ClG 03 22 10.9 -41 20 15           ~ 62 0
45 ACO 3126 ClG 03 28 43.7 -55 42 44           ~ 64 0
46 ACO 3128 ClG 03 29 50.6 -52 34 48           ~ 183 3
47 ACO 3140 ClG 03 36 17.8 -40 37 21           ~ 30 0
48 ZwCl 0335+0956 ClG 03 38 35.3 +09 57 54           ~ 402 1
49 MCXC J0340.6-0239 ClG 03 40 41.8 -02 39 57     12.50     ~ 10 0
50 BAX 055.3242+15.3961 ClG 03 41 16.9 +15 24 27           ~ 45 0
51 ACO 3158 ClG 03 43 07.5 -53 38 09           ~ 327 0
52 ACO S 384 ClG 03 45 45.0 -41 10 42           ~ 40 0
53 ACO 458 ClG 03 45 50.6 -24 16 42           ~ 56 0
54 ACO S 405 ClG 03 51 32.8 -82 13 15           ~ 50 0
55 BAX 058.2454+19.6830 ClG 03 52 58.9 +19 40 58           ~ 39 0
56 ACO 478 ClG 04 13 24.8 +10 27 52           ~ 522 0
57 NGC 1550 BiC 04 19 37.9450450152 +02 24 35.918168940   14.0       ~ 183 1
58 ClG 0422-09 ClG 04 25 51.02 -08 33 38.5           ~ 97 0
59 ACO 3266 ClG 04 31 26.4 -61 25 17           ~ 447 0
60 ACO 496 ClG 04 33 40.8 -13 14 34           ~ 728 2
61 ACO 500 ClG 04 38 55.0 -22 05 55           ~ 89 0
62 NGC 1650 GiC 04 45 11.5094503608 -15 52 12.075799512   14   12.38   ~ 35 0
63 ACO 514 ClG 04 48 18 -20 28.7           ~ 149 0
64 ACO 520 ClG 04 54 10.1 +02 55 38           ~ 465 0
65 CAN 28 ClG 04 54 52.318 -18 06 56.52           ~ 32 0
66 ACO 3301 ClG 05 01 05.8 -38 43 58           ~ 44 0
67 ACT-CL J0510.7-0801 ClG 05 10 43.85 -08 01 13.0           ~ 38 0
68 ACO S 520 ClG 05 16 37.40 -54 30 01.5           ~ 114 0
69 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
70 ACO 3341 ClG 05 25 31.859 -31 35 56.05           ~ 57 0
71 ACT-CL J0528.8-3927 ClG 05 28 56.2 -39 27 49           ~ 78 0
72 ACO 543 ClG 05 30 36.1584 -22 27 33.665           ~ 34 0
73 ACO 545 ClG 05 32 24.4152 -11 32 35.080           ~ 102 0
74 ACO S 540 ClG 05 40 06.2 -40 50 29           ~ 60 0
75 CAN 36 ClG 05 42 09.3 -26 07 25           ~ 12 0
76 ACO 548 ClG 05 47 01.7 -25 36 59           B8 209 2
77 ACO 3364 ClG 05 47 38.1 -31 52 15           ~ 86 0
78 ACO 550 ClG 05 52 54.0 -21 03 59           ~ 57 0
79 ACO S 555 ClG 05 57 12 -37 28.7           ~ 18 0
80 ACO 3376 ClG 06 01 25.000 -39 59 51.00           ~ 334 0
81 ACO 3378 ClG 06 05 53.7 -35 18 06           ~ 90 1
82 ACO 3391 ClG 06 26 15.4 -53 40 52           ~ 222 1
83 ACO 3392 ClG 06 27 05.6 -35 29 30           ~ 36 2
84 ACO 3396 ClG 06 28 46.9063 -41 42 42.833           ~ 29 1
85 ACO S 592 ClG 06 38 49.40 -53 58 40.8           ~ 75 0
86 ACO 3404 ClG 06 45 29.50 -54 13 37.0           ~ 109 0
87 ClG 0657-56 ClG 06 58 26.9 -55 58 21           ~ 1077 1
88 ACO 576 ClG 07 21 24.1 +55 44 20           ~ 312 1
89 ACO 586 ClG 07 32 20.3 +31 37 58           ~ 196 0
90 Z 262-19 BiC 07 40 58.2309667896 +55 25 37.870473828   14.2       ~ 52 1
91 ACO 602 ClG 07 53 23.51 +29 20 20.3           ~ 80 0
92 ACO 646 ClG 08 22 10.0 +47 05 58           ~ 102 1
93 ZwCl 0820+0436 ClG 08 23 05.35 +04 21 48.2           ~ 31 0
94 ACO 655 ClG 08 25 16.12 +47 09 34.2           ~ 118 0
95 ACO 665 ClG 08 30 45.2 +65 52 55           ~ 457 0
96 ACO 697 ClG 08 42 57.6 +36 21 45           ~ 277 0
97 ACO 750 ClG 09 09 06.7 +11 01 48           ~ 105 1
98 ACO 761 ClG 09 10 36.0 -10 34 59           ~ 35 0
99 ACO 773 ClG 09 17 51.3 +51 43 20           ~ 308 0
100 ACO 780 ClG 09 18 30 -12 15.7           ~ 469 0
101 ACO 795 ClG 09 24 11.26 +14 09 03.5           ~ 120 0
102 ZwCl 0949+5207 ClG 09 52 49.1 +51 53 05           ~ 141 0
103 ACO 901 ClG 09 56 09.7 -09 56 17           ~ 113 1
104 ACO 907 ClG 09 58 21.84 -11 03 47.5           ~ 137 0
105 ZwCl 0959+3257 ClG 10 02 42.16 +32 43 37.2           ~ 41 0
106 ACO 957 ClG 10 14 02.35 -00 53 30.0           ~ 225 2
107 ACO 970 ClG 10 17 34.3 -10 42 01           ~ 93 0
108 ACO 980 ClG 10 22 30.6 +50 06 06           ~ 70 0
109 ZwCl 1021+0426 ClG 10 23 39.0 +04 11 14   15.6 17.95     ~ 297 0
110 ACO 990 ClG 10 23 39.46 +49 08 19.6           ~ 88 0
111 ACO 3444 ClG 10 23 53.1540 -27 15 07.840           ~ 97 0
112 ZwCl 1023+1257 ClG 10 25 55.9 +12 41 07           ~ 54 0
113 ACO 1033 ClG 10 31 39.78 +35 05 34.4           ~ 97 0
114 ACO 1035 ClG 10 32 05.91 +40 17 25.9           ~ 88 0
115 NAME Hydra I Cluster ClG 10 36 36.0 -27 31 04           ~ 905 1
116 ACO 1068 ClG 10 40 47.1 +39 57 19           ~ 232 0
117 ACO 1084 ClG 10 44 37.1 -07 04 47           ~ 78 0
118 NAME NGC 3411 Group GrG 10 50 26.9 -12 50 26           ~ 50 0
119 ACO 1132 ClG 10 58 32.05 +56 47 14.2           ~ 145 1
120 ACO 1142 ClG 11 00 56.74 +10 30 15.2           ~ 157 1
121 ACO 1185 ClG 11 10 32.15 +28 35 50.4           ~ 271 1
122 ACO 1190 ClG 11 11 43.83 +40 51 43.5           ~ 145 0
123 ACO 1205 ClG 11 13 23.41 +02 30 42.8           ~ 74 0
124 ACO 1204 ClG 11 13 32.2 +17 35 40           ~ 101 0
125 ACO 1285 ClG 11 30 25.4 -14 33 33           ~ 66 0
126 ACO 1307 ClG 11 32 42.59 +14 26 16.3           ~ 100 0
127 ACO 1348 ClG 11 41 24.0 -12 16 00           ~ 70 0
128 ACO 1367 ClG 11 44 44.6 +19 41 59           ~ 1127 1
129 ACO 3490 ClG 11 45 19.6 -34 25 59           ~ 55 1
130 ACO 1413 ClG 11 55 12.87 +23 23 46.9           ~ 456 0
131 ACO 3497 ClG 12 00 03 -31 23.7           ~ 42 0
132 ACO 1437 ClG 12 00 24.5 +03 19 52           ~ 93 0
133 ACO 1451 ClG 12 03 17.3 -21 32 05           ~ 50 0
134 NAME NGC 4073 Group GrG 12 04 44.08 +01 48 40.9     13.53     ~ 292 0
135 BAX 181.2934+39.3467 ClG 12 05 10.4 +39 20 48           ~ 23 0
136 ZwCl 1207+0542 ClG 12 10 29.06 +05 21 49.7           ~ 41 0
137 MCXC J1215.4-3900 ClG 12 15 33.8003 -38 59 34.580           ~ 22 0
138 ZwCl 1215+0400 ClG 12 17 43.62 +03 38 51.5           ~ 169 0
139 NGC 4325 BiC 12 23 06.662 +10 37 16.45   15.0       ~ 140 1
140 NAME Virgo Cluster ClG 12 30 47.8 +12 23 07           ~ 7107 0
141 ACO 1553 ClG 12 30 48.000 +10 33 21.60           ~ 95 0
142 NGC 4636 LIN 12 42 49.8333280080 +02 41 15.951929028   12.62 11.84     ~ 1156 1
143 ACO 3526 ClG 12 48 49.2 -41 18 17           ~ 1154 2
144 MCXC J1252.5-3116 ClG 12 52 34.93 -31 15 56.8           ~ 25 0
145 ACO 1631 ClG 12 52 50.6 -15 25 37           ~ 176 1
146 HCG 62 CGG 12 53 05.6 -09 12 21           ~ 313 0
147 BAX 193.5900-29.0100 ClG 12 54 22.1 -29 00 46           ~ 45 0
148 BAX 193.6700-29.2254 ClG 12 54 40.6 -29 13 44           ~ 76 0
149 ACO 3530 ClG 12 55 36.0 -30 20 49           ~ 109 0
150 ACO 1644 ClG 12 57 11.6 -17 24 34           ~ 391 1
151 ACO 3532 ClG 12 57 19.2 -30 22 13           ~ 185 2
152 ACO 1650 ClG 12 58 42.0 -01 45 45           ~ 325 0
153 ACO 1648 ClG 12 59 00 -26 37.2           ~ 29 0
154 ACO 1651 ClG 12 59 27.3 -04 10 49           ~ 307 0
155 ACO 1656 ClG 12 59 44.40 +27 54 44.9           ~ 5141 2
156 ACO 3541 ClG 13 03 41.8 -24 15 06           ~ 26 0
157 ACO 1668 ClG 13 04 00.60 +19 17 09.6           ~ 132 0
158 MCXC J1304.2-3030 ClG 13 04 17.3 -30 31 34           ~ 17 0
159 NAME Shapley Supercluster SCG 13 06.0 -33 04           ~ 677 0
160 BAX 197.3253-01.6227 GrG 13 09 17.14 -01 35 36.3     16.09     ~ 43 0
161 ACO 1689 ClG 13 11 29.5 -01 20 28           ~ 1178 0
162 BAX 199.3086-25.5133 ClG 13 14 25.4 -25 15 44           ~ 118 0
163 NGC 5044 BiC 13 15 23.9607836592 -16 23 07.547751744   11.9   10.74   ~ 531 0
164 ACO 1735 ClG 13 26 05.0 +12 23 16           ~ 29 0
165 ACO 1736 ClG 13 26 52.1 -27 06 33           ~ 268 2
166 ACO 3558 ClG 13 28 03.2 -31 31 35           ~ 476 2
167 NAME NGC 5171 Group GrG 13 29 05.10 +11 45 04.8     4.7     ~ 78 0
168 ACO 1750 ClG 13 30 50.44 -01 51 27.1           ~ 190 2
169 ACO 3560 ClG 13 32 23.7 -33 08 21           ~ 145 1
170 ACO 1758 ClG 13 32 32.1 +50 30 37           ~ 266 2
171 ACO 3562 ClG 13 33 31.8 -31 40 23           ~ 337 1
172 ACO 1757 ClG 13 33 40.8403 -23 18 15.029           ~ 32 1
173 ACO 1763 ClG 13 35 20.1 +41 00 04           ~ 335 0
174 ACO 1767 ClG 13 36 06.92 +59 10 34.3           ~ 182 0
175 MCXC J1337.4-4120 ClG 13 37 28.2 -41 20 01           ~ 10 0
176 ACO 1775 ClG 13 41 50.60 +26 21 10.6           ~ 324 0
177 ACO 3570 ClG 13 46 50 -37 55.0           ~ 57 3
178 ClG J1347-1145 ClG 13 47 30.5 -11 45 07           ~ 577 0
179 ACO 3571 ClG 13 47 32.4 -32 50 12           ~ 308 2
180 NAME IC 4329 Group GrG 13 48 36.4 -30 30 13           ~ 147 2
181 ACO 1795 ClG 13 48 47.4 +26 34 55           ~ 1330 0
182 IC 4329A Sy1 13 49 19.2601801224 -30 18 34.213815504   13.81 13.66 12.18 12.35 ~ 876 1
183 ACO 1800 ClG 13 49 27.19 +28 04 44.6           ~ 127 0
184 MCXC J1353.4-2753 ClG 13 53 29.3 -27 53 19           ~ 8 0
185 ACO 1831 ClG 13 59 19.42 +27 58 08.2           ~ 166 0
186 ACO 1835 ClG 14 01 02.07 +02 52 43.2           ~ 727 1
187 ACO 1837 ClG 14 01 36.2 -11 07 48           ~ 106 0
188 ACO S 753 ClG 14 03 35.9 -33 59 16           ~ 91 1
189 ACO 3581 ClG 14 07 29.8 -27 01 04           ~ 197 3
190 ACO 1907 ClG 14 21 39.91 +49 30 38.4           ~ 29 0
191 ACO 1918 ClG 14 25 22.7 +63 11 14           ~ 71 0
192 ACO 1914 ClG 14 25 57.4 +37 49 54           ~ 338 0
193 ACO 1927 ClG 14 31 06.80 +25 38 01.3           ~ 103 0
194 BAX 220.1796+03.4530 ClG 14 40 34.37 +03 29 49.7     14.31     ~ 131 0
195 Z 134-18 AG? 14 42 22.3816703016 +22 19 57.956797200   14.8       ~ 27 0
196 ACO 1991 ClG 14 54 41.53 +18 38 08.4           ~ 349 1
197 ACO S 780 ClG 14 59 29.1 -18 10 45           ~ 93 0
198 ACO 2009 ClG 15 00 15.2 +21 22 09           ~ 113 0
199 ClG J1504-0248 ClG 15 04 07.4 -02 48 15           ~ 186 0
200 NGC 5846 rG 15 06 29.253 +01 36 20.29   11.9   9.74   ~ 891 2
201 ACO 2034 ClG 15 10 03.9 +33 30 57           ~ 248 1
202 ACO 2029 ClG 15 10 54.2 +05 44 23           ~ 1020 0
203 ACO 2033 ClG 15 11 23.50 +06 19 08.4           ~ 110 0
204 ACO 2052 ClG 15 16 41.64 +07 01 45.5           ~ 756 1
205 ACO 2055 ClG 15 18 46.29 +06 13 42.9           ~ 113 0
206 ACO 2064 ClG 15 20 59.4 +48 38 17           ~ 53 0
207 ACO 2061 ClG 15 21 19.90 +30 37 13.0           ~ 214 1
208 ACT-CL J1521.8+0742 ClG 15 21 48.8 +07 43 41     15.13     ~ 326 0
209 ACO 2065 ClG 15 22 22.7 +27 44 20           ~ 398 0
210 ACO 2063 ClG 15 23 01.8 +08 38 22           ~ 414 2
211 ACO 2069 ClG 15 24 02.92 +29 53 20.3           ~ 165 0
212 MCXC J1524.2-3154 ClG 15 24 12.9 -31 54 25           ~ 34 0
213 2MAXI J1546-834 ClG 15 39 37.0 -83 35 03           ~ 33 0
214 ACO 2107 ClG 15 39 39.04 +21 46 57.8           ~ 270 0
215 ACO 2110 ClG 15 39 39.82 +30 42 27.9           ~ 83 0
216 ACO 2104 ClG 15 40 06.8 -03 17 39           ~ 113 0
217 ACO 2122 ClG 15 44 55.93 +36 06 05.2           ~ 243 0
218 MCXC J1558.3-1410 ClG 15 58 22.0 -14 09 59           ~ 44 0
219 ACO 2142 ClG 15 58 26.5 +27 13 52           ~ 825 0
220 ACO 2147 ClG 16 02 11.96 +15 55 11.5           ~ 416 0
221 AWM 4 ClG 16 04 52.01 +23 56 26.9     14.38     ~ 141 0
222 ACO 2151 ClG 16 05 15.0 +17 44 55           ~ 594 3
223 ACO 2163 ClG 16 15 46.1 -06 08 50           ~ 586 0
224 ACO 2175 ClG 16 20 30.70 +29 53 31.2           ~ 133 0
225 ACO 2199 ClG 16 28 34.5 +39 32 26           ~ 1206 1
226 ACO 2204 ClG 16 32 47.7 +05 34 18           ~ 457 0
227 ACO 2218 ClG 16 35 54.0 +66 13 00           ~ 827 1
228 ACO 2219 ClG 16 40 22.1 +46 42 20           ~ 381 0
229 MCG+01-43-006 SyG 16 51 07.9886687784 +04 59 35.547131472     18.25     ~ 502 1
230 AWM 5 ClG 16 58 00.8 +27 51 16     14.00     ~ 66 0
231 ACO 2244 ClG 17 02 40.33 +34 02 58.7           ~ 301 0
232 ACO 2256 ClG 17 03 37.5 +78 37 23           ~ 928 1
233 ZwCl 1703-0129 ClG 17 06 18.2 -01 31 00           ~ 15 0
234 ACO 2249 ClG 17 09 36.76 +34 28 04.1           ~ 136 0
235 ACO 2255 ClG 17 12 56.0 +64 04 06           ~ 605 0
236 NGC 6338 Bla 17 15 22.9842192344 +57 24 40.346559927   14.2   8   ~ 205 2
237 ACO 2254 ClG 17 17 45.90 +19 40 22.8           ~ 79 0
238 ZwCl 1717+5636 ClG 17 18 09.272 +56 40 00.02           ~ 53 1
239 ACO 2259 ClG 17 20 09.2 +27 40 09           ~ 131 0
240 ClG J1720+2638 ClG 17 20 09.6 +26 37 35           ~ 284 0
241 ACO 2261 ClG 17 22 26.9 +32 07 58           ~ 370 0
242 IC 1262 rG 17 33 02.0176600056 +43 45 34.803150516   14.9       ~ 79 0
243 BAX 265.1346+35.6492 ClG 17 40 32.7 +35 38 51           ~ 36 0
244 MCXC J1742.8+3900 ClG 17 42 48.3 +39 00 35           ~ 14 0
245 ZwCl 1742+3306 ClG 17 44 16.2753 +32 59 55.115           ~ 93 0
246 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
247 ZwCl 1810+4949 ClG 18 11 00.1 +49 54 40     14.8     ~ 60 0
248 MCXC J1840.6-7709 ClG 18 40 37.2 -77 09 20           ~ 11 0
249 ACO S 805 ClG 18 47 14.4 -63 19 45           ~ 137 3
250 ACO 2312 ClG 18 53 54.7 +68 22 53           ~ 67 0
251 ACO S 810 ClG 19 12 43.9 -75 17 52           ~ 17 0
252 ACO 3638 ClG 19 25 31 -42 57.0           ~ 21 1
253 MCXC J1926.9-5342 ClG 19 26 58.3 -53 42 11           ~ 7 0
254 ACO 3651 ClG 19 52 10.9 -55 05 16           ~ 74 0
255 ACO 3653 ClG 19 53 00.9 -52 01 51           ~ 23 0
256 ACO S 851 ClG 20 09 55 -48 23.1           ~ 17 1
257 ACO 3667 ClG 20 12 33.68 -56 50 26.3           ~ 676 1
258 ACT-CL J2014.8-2430 ClG 20 14 49.7 -24 30 30           ~ 93 0
259 ACO S 861 ClG 20 18 49.0083 -52 42 54.736           ~ 17 0
260 ACO S 868 ClG 20 22 59.5 -20 56 40           ~ 35 1
261 ACO 3694 ClG 20 34 39.4 -34 04 39           ~ 32 0
262 ACO 3695 ClG 20 34 47.7 -35 49 39           ~ 96 2
263 ACO 2328 ClG 20 48 09.8 -17 50 14           ~ 78 0
264 ACO 3733 ClG 21 01 50.0 -28 06 54           ~ 64 3
265 ACO 3739 ClG 21 04 18.817 -41 20 45.65           ~ 40 0
266 RXC J2104.9-5149 ClG 21 04 54.7 -51 49 35           ~ 8 0
267 ACO 3744 ClG 21 07 13.8 -25 28 54           ~ 80 1
268 IC 1365 GrG 21 14 03.6958 +02 34 14.568           ~ 52 0
269 MCXC J2124.3-7446 ClG 21 24 22.8 -74 46 25           ~ 7 0
270 ClG J2129+0005 ClG 21 29 40.5 +00 05 47           ~ 308 0
271 ACO 2351 ClG 21 34 25 -13 23.6           ~ 18 0
272 ACO 2377 ClG 21 45 56.4 -10 06 33           ~ 59 0
273 ACO 3806 ClG 21 46 37.9 -57 17 07           ~ 59 0
274 ACO 3809 ClG 21 46 57.5 -43 54 06           ~ 99 0
275 ACO 3814 ClG 21 49 07.24 -30 42 06.4           ~ 60 0
276 ACO 2384 ClG 21 52 20.9 -19 32 53           ~ 117 0
277 ACO 2390 ClG 21 53 37.4 +17 41 46           ~ 732 2
278 ACO 3822 ClG 21 54 06.2 -57 50 49           ~ 98 0
279 ACO 2399 ClG 21 57 19.01 -07 50 57.5           ~ 197 0
280 ACO 3825 ClG 21 58 22.4 -60 23 39           ~ 66 0
281 ACO 2402 ClG 21 58 28.9 -09 47 49           ~ 40 0
282 ACO 2409 ClG 22 00 52.7 +20 58 27           ~ 101 0
283 ACO 3827 ClG 22 01 49.1 -59 57 15           ~ 178 0
284 ACO S 987 ClG 22 02 23.5 -22 30 15           ~ 27 0
285 ACO 2415 ClG 22 05 25.0 -05 35 23           ~ 124 1
286 ACO 3836 ClG 22 09 35.9 -51 50 30           ~ 35 0
287 ACO 2420 ClG 22 10 22.5 -12 11 13           ~ 126 0
288 ACO 2426 ClG 22 14 27.3 -10 22 05           ~ 91 0
289 ACO 2428 ClG 22 16 07.01 -09 20 19.5           ~ 62 0
290 ACT-CL J2216.9-1725 ClG 22 16 56.23 -17 25 25.5           ~ 26 0
291 ACO 3854 ClG 22 17 45.72 -35 43 31.4           ~ 75 0
292 2MAXI J2216-647 ClG 22 18 00.7 -65 10 52           ~ 43 0
293 ACO 3856 ClG 22 18 45.2 -38 53 57           ~ 87 2
294 ACO 3866 ClG 22 20 29.9 -35 09 53           ~ 30 0
295 APMCC 772 ClG 22 24 09.2 -55 14 19           ~ 15 0
296 ACO 2442 ClG 22 25 51.4 -06 35 52           ~ 19 0
297 ACO 2443 ClG 22 26 14.09 +17 25 13.5           ~ 126 0
298 ACO 3880 ClG 22 27 49.5 -30 34 40           ~ 104 2
299 ACO 3888 ClG 22 34 26.3 -37 44 29           ~ 151 1
300 ACO 2457 ClG 22 35 40.30 +01 31 33.6           ~ 139 0
301 ACO 3911 ClG 22 46 22.6 -52 44 21           ~ 73 0
302 ACO S 1063 ClG 22 48 45.4 -44 31 42           ~ 395 0
303 ACO 3921 ClG 22 49 59.0 -64 25 48           ~ 165 1
304 ACO 2495 ClG 22 50 17.10 +10 55 01.2           ~ 87 0
305 ACO 2496 ClG 22 50 57.8 -16 24 05           ~ 43 0
306 ACO 2533 ClG 23 07 14.02 -15 13 26.0           ~ 31 0
307 ZwCl 2307+0713 ClG 23 10 26.6 +07 35 13           ~ 60 0
308 ACO 2556 ClG 23 13 03.3 -21 37 40           ~ 83 0
309 ACO S 1101 ClG 23 13 58.5 -42 43 39           ~ 272 1
310 ACO 3984 ClG 23 15 43.3 -37 47 09           ~ 37 0
311 NGC 7556 GiG 23 15 44.473 -02 22 53.55   14   12.78   ~ 42 0
312 ACO 2566 ClG 23 16 03.2 -20 27 41           ~ 50 0
313 ACO 2572 ClG 23 18 31.2 +18 41 52           ~ 142 1
314 ACO 3998 ClG 23 21 38.1 -41 53 33           ~ 35 0
315 ACO 2589 ClG 23 24 00.5 +16 49 29           ~ 327 1
316 ACO 2593 ClG 23 24 27.15 +14 33 40.2           ~ 231 0
317 ACO 2597 ClG 23 25 19.70 -12 07 27.7           ~ 572 0
318 ACO 4010 ClG 23 31 10.3 -36 30 26           ~ 63 0
319 ACO 2622 ClG 23 34 53 +27 25.6           ~ 93 0
320 ACO S 1136 ClG 23 36 14.3 -31 36 24           ~ 27 0
321 ACO 2626 ClG 23 36 31.0 +21 09 36           ~ 265 0
322 ACO 2634 ClG 23 38 18.4 +27 01 37           ~ 515 2
323 ACT-CL J2344.3-0422 ClG 23 44 15.98 -04 22 24.5           ~ 53 0
324 ACO 2657 ClG 23 44 51.0 +09 08 40           ~ 280 3
325 ACO 4038 ClG 23 47 31.1 -28 12 10           ~ 349 3
326 ACO 2665 ClG 23 50 50.6 +06 09 00           ~ 106 0
327 ACO 2667 ClG 23 51 39.37 -26 05 02.7           ~ 190 0
328 ACO 2670 ClG 23 54 10.51 -10 23 06.8           ~ 364 0
329 ACO 4059 ClG 23 57 02.2 -34 45 58           ~ 400 1

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