2024ApJ...967...14C

Query : 2024ApJ...967...14C

2024ApJ...967...14C - Astrophys. J., 967, 14 (2024/May-3)

Optical Photometric Indicators of Galaxy Cluster Relaxation.

CASAS M.C., PUTNAM K., MANTZ A.B., ALLEN S.W. and SOMBOONPANYAKUL T.

Abstract (from CDS):

The most dynamically relaxed clusters of galaxies play a special role in cosmological studies as well as astrophysical studies of the intracluster medium (ICM) and active galactic nucleus feedback. While high-spatial-resolution imaging of the morphology of the ICM has long been the gold standard for establishing a cluster's dynamical state, such data are not available from current or planned surveys, and thus require separate, pointed follow-up observations. With optical and/or near-IR photometric imaging, and red-sequence cluster finding results from those data, expected to be ubiquitously available for clusters discovered in upcoming optical and millimeter-wavelength surveys, it is worth asking how effectively photometric data alone can identify relaxed cluster candidates, before investing in, e.g., high-resolution X-ray observations. Here we assess the ability of several simple photometric measurements, based on the redMaPPer cluster finder run on Sloan Digital Sky Survey data, to reproduce X-ray classifications of dynamical state for an X-ray selected sample of massive clusters. We find that two simple metrics contrasting the bright central galaxy (BCG) to other cluster members can identify a complete sample of relaxed clusters with a purity of ∼40% in our data set. Including minimal ICM information in the form of a center position increases the purity to ∼60%. However, all three metrics depend critically on correctly identifying the BCG, which is presently a challenge for optical red-sequence cluster finders.

Abstract Copyright: © 2024. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Galaxy clusters

Simbad objects: 100

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Number of rows : 100
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 ClG 0016+16 ClG 00 18 33.3 +16 26 36           ~ 517 0
2 BAX 006.9575+26.2739 ClG 00 27 45.90 +26 16 25.0           ~ 44 0
3 ClG J0030+2618 ClG 00 30 33.6 +26 18 16           ~ 65 0
4 ACO 68 ClG 00 37 06.2 +09 09 33           ~ 195 0
5 ACO 115 ClG 00 55 59 +26 23.2           ~ 295 1
6 MCS J0111.5+0855 ClG 01 11 31.4 +08 55 41           ~ 15 0
7 ACT-CL J0140.0-0554 ClG 01 40 00.823 -05 55 02.75           ~ 30 0
8 ACT-CL J0150.3-1005 ClG 01 50 21.24 -10 05 29.6           ~ 27 0
9 ACO 267 ClG 01 52 43.016 +00 59 58.90           ~ 241 0
10 ACT-CL J0159.8-0849 ClG 01 59 49.4 -08 50 00           ~ 98 0
11 ACO 383 ClG 02 48 03.3915 -03 31 45.228           ~ 389 0
12 ACO 586 ClG 07 32 20.3 +31 37 58           ~ 196 0
13 ACO 611 ClG 08 00 58.7 +36 02 49           ~ 275 0
14 ZwCl 0806+2822 ClG 08 09 41.0 +28 11 58           ~ 27 0
15 ACO 646 ClG 08 22 10.0 +47 05 58           ~ 102 1
16 ACO 697 ClG 08 42 57.6 +36 21 45           ~ 277 0
17 ZwCl 0847+3617 ClG 08 50 12.0 +36 03 36           ~ 75 0
18 ClG J0853+5759 ClG 08 53 13.4 +57 59 44           ~ 27 0
19 ClG J0900+3920 ClG 09 00 04.7 +39 20 24           ~ 11 0
20 ZwCl 0857+2107 ClG 09 00 36.90 +20 53 40.3           ~ 103 0
21 ACO 750 ClG 09 09 06.7 +11 01 48           ~ 105 1
22 ACT-CL J0911.1+1746 ClG 09 11 11.277 +17 46 31.94           ~ 79 0
23 RXC J0913.7+4056 ClG 09 13 46.0 +40 56 20           ~ 71 0
24 ACO 773 ClG 09 17 51.3 +51 43 20           ~ 308 0
25 ACO 781 ClG 09 20 25.4 +30 30 07           ~ 167 0
26 ACO 795 ClG 09 24 11.26 +14 09 03.5           ~ 120 0
27 ClG J0926+1242 ClG 09 26 36.6 +12 42 59           ~ 43 0
28 ACT-CL J0940.8+0744 ClG 09 40 53.0 +07 44 25           ~ 22 0
29 ZwCl 0947+1723 ClG 09 49 51.8 +17 07 05           ~ 92 0
30 ZwCl 0949+5207 ClG 09 52 49.1 +51 53 05           ~ 141 0
31 ClG J0956+4107 ClG 09 56 03.4 +41 07 14           ~ 44 0
32 ClG J0958+4702 ClG 09 58 19.3 +47 02 00   22       ~ 21 0
33 ClG J1003+3253 ClG 10 03 04.1 +32 54 28           ~ 34 0
34 MCS J1006.9+3200 ClG 10 06 55.7 +31 59 34           ~ 23 0
35 ACO 963 ClG 10 17 03.4 +39 02 56           ~ 414 0
36 ZwCl 1021+0426 ClG 10 23 39.0 +04 11 14   15.6 17.95     ~ 297 0
37 ACO 1068 ClG 10 40 47.1 +39 57 19           ~ 232 0
38 ACO 1132 ClG 10 58 32.05 +56 47 14.2           ~ 145 1
39 ACT-CL J1108.9+0906 ClG 11 08 55.3 +09 06 01           ~ 23 0
40 ACO 1201 ClG 11 12 54.4 +13 26 08           ~ 131 1
41 ACO 1204 ClG 11 13 32.2 +17 35 40           ~ 101 0
42 ClG J1115+5319 ClG 11 15 14.8 +53 19 54           ~ 56 0
43 ClG J1117+1744 ClG 11 17 30.2 +17 44 44           ~ 35 0
44 ACO 1246 ClG 11 23 57.4 +21 29 14           ~ 118 0
45 MCS J1149.5+2223 ClG 11 49 35.8 +22 23 55           ~ 546 0
46 ACO 1413 ClG 11 55 12.87 +23 23 46.9           ~ 456 0
47 ACO 1423 ClG 11 57 17.3206 +33 36 39.364           ~ 181 0
48 ACO 1489 ClG 12 12 19.2 +27 33 14           ~ 52 0
49 ClG J1213+0253 ClG 12 13 34.4 +02 53 57           ~ 34 0
50 MCXC J1218.4+4013 ClG 12 18 26.4 +40 13 28           ~ 23 0
51 SDSSCGB 65816 CGG 12 22 01.9 +27 09 19           ~ 18 0
52 MCS J1226.8+2153 ClG 12 26 51.69 +21 52 25.4           ~ 33 0
53 ACO 1553 ClG 12 30 48.000 +10 33 21.60           ~ 95 0
54 MCXC J1231.7+4137 ClG 12 31 45.6 +41 37 11           ~ 13 0
55 ZwCl 1231+1007 ClG 12 34 21.9 +09 47 02           ~ 72 0
56 ACO 1576 ClG 12 36 59.5 +63 11 18           ~ 116 0
57 ACO 1650 ClG 12 58 42.0 -01 45 45           ~ 325 0
58 ACO 1682 ClG 13 06 49.7 +46 32 59           ~ 149 1
59 ClG J1311-0311 ClG 13 11 01.7 -03 10 38           ~ 120 0
60 ACO 1689 ClG 13 11 29.5 -01 20 28           ~ 1178 0
61 ClG J1312+3900 ClG 13 12 19.4 +39 00 58           ~ 18 0
62 ACO 1758 ClG 13 32 32.1 +50 30 37           ~ 266 2
63 ACO 1763 ClG 13 35 20.1 +41 00 04           ~ 335 0
64 [BVH2007] 175 ClG 13 38 50.2 +38 51 18           ~ 6 0
65 ClG J1354-0221 ClG 13 54 17.00 -02 22 13.1           ~ 52 0
66 ZwCl 1358+6245 ClG 13 59 54.3 +62 30 36     18.5     ~ 370 0
67 ACO 1835 ClG 14 01 02.07 +02 52 43.2           ~ 727 1
68 [RRB2014] RM J141120.5+521210.1 ClG 14 11 20.5 +52 12 10           ~ 5 0
69 [VMF98] 158 ClG 14 16 28.1 +44 46 38           ~ 50 0
70 ClG J1423+2404 ClG 14 23 47.7 +24 04 40           ~ 231 0
71 ACO 1914 ClG 14 25 57.4 +37 49 54           ~ 338 0
72 MCS J1427.3+4408 ClG 14 27 16.2 +44 07 31           ~ 34 0
73 ZwCl 1455+2232 ClG 14 57 15.2 +22 20 30     18.62 20.04   ~ 309 0
74 ACO 2009 ClG 15 00 15.2 +21 22 09           ~ 113 0
75 ACO 2034 ClG 15 10 03.9 +33 30 57           ~ 248 1
76 ACO 2069 ClG 15 24 02.92 +29 53 20.3           ~ 165 0
77 ClG J1532+3021 ClG 15 32 53.8 +30 21 00           ~ 122 0
78 ACO 2111 ClG 15 39 40.9 +34 25 04           ~ 188 0
79 BAX 238.0513+20.2292 ClG 15 52 12.3 +20 13 42           ~ 48 0
80 ACO 2142 ClG 15 58 26.5 +27 13 52           ~ 825 0
81 ClG J1621+3810 ClG 16 21 25.5 +38 09 43           ~ 83 0
82 ACO 2219 ClG 16 40 22.1 +46 42 20           ~ 381 0
83 ClG J1641+4001 ClG 16 41 52.3 +40 01 29           ~ 43 0
84 ACO 2244 ClG 17 02 40.33 +34 02 58.7           ~ 301 0
85 ACO 2259 ClG 17 20 09.2 +27 40 09           ~ 131 0
86 ClG J1720+2638 ClG 17 20 09.6 +26 37 35           ~ 284 0
87 ACO 2261 ClG 17 22 26.9 +32 07 58           ~ 370 0
88 ClG J2129-0741 ClG 21 29 26.0 -07 41 28           ~ 189 0
89 ClG J2129+0005 ClG 21 29 40.5 +00 05 47           ~ 308 0
90 ClG J2135-0102 ClG 21 35 12.00 -01 03 00.1           ~ 70 0
91 ACO 2390 ClG 21 53 37.4 +17 41 46           ~ 732 2
92 ACO 2409 ClG 22 00 52.7 +20 58 27           ~ 101 0
93 ACT-CL J2211.7-0349 ClG 22 11 44.8 -03 49 33           ~ 96 0
94 BAX 337.1433+20.6131 ClG 22 28 32.6 +20 37 08           ~ 132 0
95 ClG J2243-0935 ClG 22 43 21.1 -09 35 43           ~ 96 0
96 MCS J2245.0+2637 ClG 22 45 04.5 +26 38 07           ~ 40 0
97 ACO 2537 ClG 23 08 22.3 -02 11 29           ~ 152 0
98 ACO 2552 ClG 23 11 31.7 +03 37 44           ~ 87 0
99 ACO 2631 ClG 23 37 40.7 +00 16 35           ~ 183 0
100 ACO 2645 ClG 23 41 17.0 -09 01 11           ~ 98 0

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