2004ApJ...617..879L

Query : 2004ApJ...617..879L

2004ApJ...617..879L - Astrophys. J., 617, 879-895 (2004/December-3)

K-band properties of galaxy clusters and groups: brightest cluster galaxies and intracluster light.

LIN Y.-T. and MOHR J.J.

Abstract (from CDS):

We investigate the near-infrared K-band properties of the brightest cluster galaxies (BCGs) in a sample of 93 X-ray galaxy clusters and groups, using data from the Two Micron All Sky Survey. Our cluster sample spans a factor of 70 in mass, making it sensitive to any cluster mass-related trends. We derive the cumulative radial distribution for the BCGs in the ensemble and find that 70% of the BCGs are centered in the cluster to within 5% of the virial radius r200; this quantifies earlier findings that BCG position coincides with the cluster center as defined by the X-ray emission peak. We study the correlations between the luminosity of the BCGs (Lb) and the mass and the luminosity of the host clusters, finding that BCGs in more massive clusters are more luminous than their counterparts in less massive systems and that the BCGs become less important in the overall cluster light (L200) as cluster mass increases. By examining a large sample of optically selected groups, we find that these correlations hold for galactic systems less massive than our clusters (<3x1013 M☉). From the differences between luminosity functions in high- and low-mass clusters, we argue that BCGs grow in luminosity mainly by merging with other luminous galaxies as the host clusters grow hierarchically; the decreasing BCG luminosity fraction (Lb/L200) with cluster mass indicates that the rate of luminosity growth in BCGs is slow compared to the rate at which clusters acquire galaxy light from the field or other merging clusters. Utilizing the observed correlation between the cluster luminosity and mass and a merger tree model for cluster formation, we estimate that the amount of intracluster light (ICL) increases with cluster mass; our calculations suggest that in 1015 M☉ clusters more than 50% of total stellar mass is in ICL, making the role of ICL very important in the evolution and thermodynamic history of clusters. The cluster baryon fraction accounting for the ICL is in good agreement with the value derived from cosmic microwave background observations. The inclusion of ICL reduces the discrepancy between the observed cluster cold baryon fraction and that found in hydrodynamical simulations. Based on the observed iron abundance in the intracluster medium, we find that the ICL predicted by our model, together with the observed galaxy light, match the iron mass-to-light ratio expected from simple stellar population models, provided that the Salpeter initial mass function is adopted. The ICL also makes it easier to produce the ``iron excess'' found in the central regions of cool-core clusters.

Abstract Copyright: ∼

Journal keyword(s): Cosmology: Observations - Galaxies: Clusters: General - Galaxies: Elliptical and Lenticular, cD - Infrared: Galaxies

Simbad objects: 193

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Number of rows : 193
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 2734 ClG 00 11 21.60 -28 51 16.6           ~ 142 0
2 ESO 409-25 Sy1 00 11 21.667 -28 51 15.85   14.30 10.08 12.77   ~ 37 1
3 ZwCl 0024+1652 ClG 00 26 35.6 +17 09 32     18.35     ~ 634 1
4 IC 1565 BiC 00 39 26.2834752624 +06 44 03.262118424   14.41       ~ 53 2
5 ACO 76 ClG 00 40 16.1031 +06 52 46.226           ~ 132 2
6 ACO 85 ClG 00 41 36.21 -09 19 30.4           ~ 909 0
7 MCG-02-02-086 BiC 00 41 50.451 -09 18 11.46   14 13.52 12.94   ~ 139 1
8 ACO 119 ClG 00 56 08.57 -01 12 00.8           ~ 555 2
9 UGC 579 BiC 00 56 16.101 -01 15 19.77   14.40 14.45     ~ 78 1
10 ACO 133 ClG 01 02 41.5 -21 52 53           ~ 368 1
11 ESO 541-13 BiC 01 02 42.026 -21 52 34.50   14.54 15.1 12.94   ~ 76 3
12 NGC 383 rG 01 07 24.9647814840 +32 24 45.132586200   13.6 12.14     ~ 777 3
13 UGC 797 BiC 01 14 57.5962100328 +00 25 50.962053144   15.5 13.9     ~ 73 1
14 ACO 168 ClG 01 15 07.58 +00 19 10.8           ~ 360 2
15 ZwCl 0120+3300 ClG 01 23 36.9 +33 15 03           ~ 78 0
16 NGC 507 BiC 01 23 39.950 +33 15 22.22   13.0       ~ 439 3
17 ACO 193 ClG 01 25 07.3 +08 41 36           ~ 186 0
18 IC 1695 BiC 01 25 07.645 +08 41 57.68   14.87       ~ 64 1
19 NGC 547 AGN 01 26 00.6208982520 -01 20 42.432452268   13.16 13.34     ~ 348 4
20 ACO 194 ClG 01 26 01.3 -01 22 02           ~ 350 2
21 NGC 708 BiC 01 52 46.482 +36 09 06.53 14.85 14.27 13.29 12.67 12.09 ~ 240 3
22 ACO 262 ClG 01 52 50.4 +36 08 46           ~ 698 1
23 USGC U085 GrG 01 56 16.4 +05 39 45           ~ 2 0
24 ACO 335 ClG 02 16 07 -12 09.1           ~ 8 0
25 ACO 376 ClG 02 45 48 +36 51.6           B8.5 153 1
26 UGC 2232 BiC 02 46 03.9460542576 +36 54 18.840411612   15.50       ~ 44 1
27 NGC 1129 BiC 02 54 27.400 +41 34 46.70   14.6 13.6     ~ 120 1
28 2A 0251+413 ClG 02 54 32.2 +41 35 10           ~ 314 1
29 ACO 400 ClG 02 57 37.4 +06 00 45           ~ 399 3
30 NAME 3C 75A BiC 02 57 41.5615453872 +06 01 36.883348716   14.7       ~ 62 2
31 ACO 3112 ClG 03 17 52.4 -44 14 35           ~ 311 1
32 ESO 248-6 QSO 03 17 57.67946154 -44 14 17.1632318   14.85   13.16   ~ 79 3
33 ACO 426 ClG 03 19 47.2 +41 30 47           ~ 2255 1
34 3C 84 Sy2 03 19 48.1599902040 +41 30 42.108850836   13.10 12.48 11.09   ~ 4006 3
35 ZwCl 0335+0956 ClG 03 38 35.3 +09 57 54           ~ 383 1
36 2MASX J03384056+0958119 LIN 03 38 40.568 +09 58 11.94   16.5       ~ 41 1
37 ACO 3158 ClG 03 42 39.6 -53 37 50           ~ 304 0
38 6dFGS gJ034253.0-533753 BiC 03 42 52.9677368568 -53 37 52.547974500   16.15       ~ 24 1
39 ACO 478 ClG 04 13 20.7 +10 28 35           ~ 502 0
40 2MASX J04132526+1027551 BiC 04 13 25.266 +10 27 55.14           ~ 23 1
41 ClG 0422-09 ClG 04 25 51.02 -08 33 38.5           ~ 91 0
42 MCG-01-12-005 Sy2 04 25 51.336 -08 33 38.98   15.5   16.9   ~ 43 2
43 ACO 3266 ClG 04 31 11.9 -61 24 23           ~ 410 0
44 2MASXI J0431133-612712 BiC 04 31 13.2952313064 -61 27 12.013455636   15.30   13.60   ~ 29 1
45 NAME A496cD BiC 04 33 37.8465077496 -13 15 42.989961204   13.95 14.22     ~ 100 1
46 ACO 496 ClG 04 33 38.8 -13 15 59           ~ 694 2
47 ACO 539 ClG 05 16 35.1 +06 27 14           ~ 249 2
48 UGC 3274 BiC 05 16 37.1428461504 +06 26 53.066655888   14.0       ~ 36 1
49 ACO 548 ClG 05 47 01.7 -25 36 59           B8 202 2
50 ESO 488-27 BiC 05 48 38.3525613720 -25 28 40.090047312   14.02       ~ 38 0
51 ESO 307-13 BiC 06 00 41.120 -40 02 39.82   14.66   12.93   ~ 44 1
52 ACO 3376 ClG 06 01 25.000 -39 59 51.00           ~ 305 0
53 ACO 3389 ClG 06 21 47.4 -64 57 35           ~ 60 3
54 NGC 2235 BiC 06 22 22.0743221472 -64 56 02.834016720   14.00   12.13   ~ 36 2
55 ACO 3391 ClG 06 26 15.4 -53 40 52           ~ 202 1
56 6dFGS gJ062622.1-534126 G 06 26 22.092 -53 41 25.90   15.38   13.18   ~ 7 0
57 ACO 3395 ClG 06 27 31.1 -54 23 58           ~ 209 0
58 ESO 161-8 BiC 06 27 36.2649635808 -54 26 57.926377896   15.02   12.72   ~ 33 0
59 ACO 576 ClG 07 21 24.1 +55 44 20           ~ 297 1
60 MCG+09-12-061 BiC 07 21 30.2748806208 +55 45 41.806138500   15.62       ~ 25 1
61 ACO 644 ClG 08 17 24.5 -07 30 46           ~ 225 0
62 2MASX J08172559-0730455 BiC 08 17 25.598 -07 30 45.59   17.23 15.94 15.24   ~ 20 0
63 NGC 2563 GiG 08 20 35.6870161656 +21 04 04.111020012   13.7 12.39     ~ 154 1
64 2MASX J09083238-0937470 BiC 09 08 32.388 -09 37 47.06   14.32   13.32   ~ 38 2
65 ACO 754 ClG 09 09 08.4 -09 39 58           ~ 666 1
66 NAME Hya A LIN 09 18 05.66848602 -12 05 43.8060823   14.38 14.8     ~ 1011 1
67 ACO 780 ClG 09 18 30 -12 15.7           ~ 453 0
68 NGC 2832 BiC 09 19 46.853 +33 44 59.07   13.3 13.17     ~ 264 3
69 ACO 779 ClG 09 20 02.70 +33 45 29.7           ~ 253 0
70 NAME M 81-82 Group GrG 09 55 +69.1           ~ 716 0
71 ACO S 636 ClG 10 29 41.0957 -35 19 32.908           ~ 225 0
72 NGC 3271 BiC 10 30 26.5035080808 -35 21 34.063890048   12.72 11.73 11.03   ~ 74 1
73 NAME Hydra I Cluster ClG 10 36 36.0 -27 31 04           ~ 838 1
74 NGC 3311 EmG 10 36 42.821 -27 31 42.02   11.93 10.93 10.00 9.67 ~ 300 2
75 NAME M96 Group GrG 10 48 +13.3           ~ 313 0
76 ACO 1142 ClG 11 00 56.74 +10 30 15.2           ~ 153 1
77 NGC 3492 BiC 11 00 57.4166378040 +10 30 19.680093432   14.0       ~ 27 1
78 ACO 1185 ClG 11 10 32.15 +28 35 50.4           ~ 259 1
79 2MASXI J1110387+284607 BiC 11 10 38.3872047960 +28 46 03.363722076           ~ 20 1
80 IC 712 BiC 11 34 49.2945748128 +49 04 39.576182052   14.8       ~ 86 1
81 ACO 1314 ClG 11 34 53.0 +49 05 18           ~ 218 1
82 NGC 3842 BiC 11 44 02.155 +19 56 59.37 14.22 13.70 11.82 12.04   ~ 287 3
83 ACO 1367 ClG 11 44 44.6 +19 41 59           ~ 1076 1
84 ACO 1413 ClG 11 55 12.87 +23 23 46.9           ~ 430 0
85 NGC 4073 BiC 12 04 27.0598775760 +01 53 45.611893752   13.8 13.21 14.249   ~ 200 1
86 NAME NGC 4073 Group GrG 12 04 44.08 +01 48 40.9     13.53     ~ 280 0
87 NAME NGC 4104 Group GrG 12 06 19.75 +28 07 08.3           ~ 46 0
88 NGC 4104 BiC 12 06 38.9098151088 +28 10 27.184493280   13.7 13.58     ~ 97 1
89 NAME Virgo Cluster ClG 12 26 32.1 +12 43 24           ~ 6637 0
90 NGC 4696 BiC 12 48 49.2724775784 -41 18 39.304053252   11.21   10.7   ~ 490 3
91 ACO 3526 ClG 12 48 51.8 -41 18 21           ~ 1065 2
92 HCG 62 CGG 12 53 05.6 -09 12 21           ~ 306 0
93 NGC 4761 BiC 12 53 05.6960048016 -09 12 14.579980632   13.79   11.25   ~ 86 1
94 2MASX J12571157-1724344 LIN 12 57 11.580 -17 24 34.47   13.50   12.56   ~ 57 2
95 ACO 1644 ClG 12 57 11.6 -17 24 34           ~ 366 1
96 2dFGRS TGN256Z066 BiC 12 58 41.495 -01 45 41.02   15.93   14.14   ~ 23 0
97 ACO 1650 ClG 12 58 42.0 -01 45 45           ~ 304 0
98 ACO 1651 ClG 12 59 22.43 -04 11 47.1           ~ 290 0
99 LEDA 88678 EmG 12 59 22.4954602200 -04 11 45.934999800   15.96   14.20   ~ 20 1
100 ACO 1656 ClG 12 59 44.40 +27 54 44.9           ~ 4795 2
101 NGC 4889 EmG 13 00 08.097 +27 58 37.29 12.93 13.0 11.30 11.652 10.906 ~ 704 1
102 ACO 1689 ClG 13 11 29.5 -01 20 28           ~ 1123 0
103 NAME NGC 5044 Group GrG 13 14 22.7 -16 32 04           ~ 181 0
104 HMS 1313-1612 ClG 13 16 -16.5           ~ 13 0
105 NGC 5054 Sy1 13 16 58.488 -16 38 05.46   11.3   10.36 10.7 ~ 196 1
106 ACO 1736 ClG 13 26 52.1 -27 06 33           ~ 249 2
107 IC 4252 BiC 13 27 28.044 -27 19 28.85   14.15   12.69 13.02 ~ 35 1
108 ACO 3558 ClG 13 27 54.8 -31 29 32           ~ 442 2
109 ESO 444-46 BiC 13 27 56.884 -31 29 43.71   13.88 15 12.24 12.76 ~ 81 2
110 2MASX J13314673-3253401 BiC 13 31 46.7746653336 -32 53 40.007504472   15.22   14.83 13.76 ~ 21 1
111 2MASX J13320334-3146430 BiC 13 32 03.1619332728 -31 46 48.527873652   15.65   13.99 13.43 ~ 34 0
112 ACO 3560 ClG 13 32 23.7 -33 08 21           ~ 133 1
113 ACO 3562 ClG 13 33 31.8 -31 40 23           ~ 313 1
114 ACO 1767 ClG 13 36 06.92 +59 10 34.3           ~ 172 0
115 MCG+10-19-096 BiC 13 36 08.3225404536 +59 12 23.040788652   16       ~ 27 1
116 IC 4296 AGN 13 36 39.03253319 -33 57 57.0730368   11.52 12.99 10.00 10.79 ~ 493 2
117 ACO 1795 ClG 13 48 50.48 +26 35 07.4           ~ 1266 0
118 Z 162-10 LIN 13 48 52.4892734448 +26 35 34.353002688   14.0       ~ 237 2
119 IC 4374 QSO 14 07 29.76229070 -27 01 04.2916695   13.61   11.79 12.55 ~ 138 3
120 ACO 3581 ClG 14 07 29.8 -27 01 04           ~ 184 3
121 ACO 1914 ClG 14 26 03.32 +37 49 58.7           ~ 314 0
122 BAX 220.1796+03.4530 ClG 14 40 34.37 +03 29 49.7     14.31     ~ 119 0
123 NGC 5718 LIN 14 40 42.835 +03 27 55.52   14.6       ~ 62 1
124 NGC 5778 BiC 14 54 31.4984540808 +18 38 32.499862620   15.6       ~ 65 3
125 ACO 1991 ClG 14 54 41.53 +18 38 08.4           ~ 330 1
126 IC 1101 rG 15 10 56.100 +05 44 41.19   15.10       ~ 155 2
127 ACO 2029 ClG 15 10 56.2 +05 44 42           ~ 943 0
128 ACO 2052 ClG 15 16 41.64 +07 01 45.5           ~ 730 1
129 UGC 9799 Sy2 15 16 44.4893939136 +07 01 17.825410740   15.19 14.17     ~ 446 3
130 NGC 5920 LIN 15 21 51.870 +07 42 31.97   15.5       ~ 131 1
131 ACT-CL J1521.8+0742 ClG 15 21 55.14 +07 41 27.2     15.13     ~ 311 0
132 2MASX J15215562+2724530 GiC 15 21 55.5979008240 +27 24 53.340943860   15.31       ~ 11 1
133 ACO 2065 ClG 15 22 29.3 +27 42 22           ~ 374 0
134 ACO 2063 ClG 15 23 01.8 +08 38 22           ~ 397 2
135 MCG+02-39-020 BiC 15 23 05.2995518184 +08 36 33.193663020   14.71       ~ 69 2
136 UGC 9886 GiG 15 32 32.0124552816 +04 40 51.645058428   15.3       ~ 29 1
137 BAX 233.1222+04.6817 ClG 15 32 32.02 +04 40 51.6     15.13     ~ 61 0
138 ACO 2107 ClG 15 39 39.04 +21 46 57.8           ~ 253 0
139 UGC 9958 BiC 15 39 39.049 +21 46 57.98   14.76       ~ 67 2
140 ACO 2142 ClG 15 58 14.38 +27 12 57.8           ~ 768 0
141 2MASX J15582002+2714000 BiC 15 58 20.000 +27 14 00.28   14.48       ~ 35 1
142 ACO 2147 ClG 16 02 11.96 +15 55 11.5           ~ 403 0
143 UGC 10144 GiG 16 02 19.845 +16 20 46.25   14.6       ~ 40 1
144 NGC 6041 BiC 16 04 35.7922766976 +17 43 17.522077764   14.9       ~ 72 2
145 AWM 4 ClG 16 04 52.01 +23 56 26.9     14.38     ~ 130 0
146 NGC 6051 BiC 16 04 56.6684912064 +23 55 57.622768392   14.9       ~ 112 2
147 ACO 2151 ClG 16 05 15.0 +17 44 55           ~ 578 3
148 ZwCl 1615+3508 ClG 16 17.6 +35 01           ~ 7 0
149 NGC 6109 LIN 16 17 40.539 +35 00 15.17   14.9       ~ 180 2
150 ACO 2199 ClG 16 28 43.31 +39 34 07.6           ~ 1171 1
151 BAX 249.5848-64.5165 ClG 16 38 16.1 -64 20 50           ~ 115 0
152 ESO 101-4 G 16 38 18.2454371352 -64 21 36.398553300   14.66   12.64   ~ 9 1
153 ACO 2256 ClG 17 03 09.4 +78 39 36           ~ 885 1
154 UGC 10726 BiC 17 04 27.246 +78 38 26.03   15.5       ~ 31 1
155 2MASXI J1712287+640338 BiC 17 12 28.8000059448 +64 03 38.754457596           ~ 30 1
156 ACO 2255 ClG 17 12 50.04 +64 03 10.6           ~ 567 0
157 NAME NGC 6329 Group GrG 17 14 15 +43 41.1           ~ 9 0
158 NGC 6329 GiG 17 14 15.0278110392 +43 41 04.900781508   14.3       ~ 39 1
159 NGC 6338 Bla 17 15 22.9752 +57 24 40.312   14.2   8   ~ 184 2
160 ACO S 805 ClG 18 47 14.4 -63 19 45           ~ 133 3
161 IC 4765 BiC 18 47 18.150 -63 19 52.14   12.33 11.36 10.53 10.75 ~ 86 2
162 ACO 2319 ClG 19 20 45.3 +43 57 43           ~ 461 1
163 MCG+07-40-004 BiC 19 21 10.0202476008 +43 56 44.124140724   15.3       ~ 23 1
164 IC 4965 BiC 20 12 27.3267265824 -56 49 36.418283220   14.42   13.17   ~ 30 1
165 ACO 3667 ClG 20 12 33.68 -56 50 26.3           ~ 627 1
166 ACO 2390 ClG 21 53 37.4 +17 41 46           ~ 687 2
167 ACO 3822 ClG 21 54 06.2 -57 50 49           ~ 87 0
168 2MASX J21550019-5739278 BiC 21 55 00.1433098200 -57 39 27.433683288   16.18       ~ 14 1
169 HCG 90 CGG 22 02 06.3 -31 55 48           ~ 130 0
170 2MASX J22101878-1210141 BiC 22 10 18.787 -12 10 14.17   15.00   14.34   ~ 20 1
171 ACO 2420 ClG 22 10 22.5 -12 11 13           ~ 114 0
172 ACO 2440 ClG 22 23 52.6 -01 35 47           ~ 125 1
173 2MASXI J2223569-013459 GiC 22 23 56.946 -01 34 59.31   16.35   14.85   ~ 10 1
174 ACO S 1101 ClG 23 13 58.5 -42 43 39           ~ 258 1
175 ESO 291-9 BiC 23 13 58.6501915464 -42 43 39.089945856   14.68 14.6 14.537   ~ 52 3
176 BAX 349.3187+18.7197 ClG 23 17 11.184 +18 41 48.87           ~ 91 0
177 NGC 7578 BiC 23 17 13.5451937976 +18 42 29.351084940   15.0   12.93   ~ 74 1
178 NGC 7647 BiC 23 23 57.4310112528 +16 46 38.141670936   14.61 14.45     ~ 76 0
179 ACO 2589 ClG 23 24 00.5 +16 49 29           ~ 316 1
180 NGC 7649 BiC 23 24 20.087 +14 38 49.68   15.65       ~ 58 1
181 ACO 2593 ClG 23 24 27.15 +14 33 40.2           ~ 218 0
182 IC 5338 BiC 23 36 30.6135053136 +21 08 50.535313476   15.5       ~ 89 1
183 ACO 2626 ClG 23 36 31.0 +21 09 36           ~ 247 0
184 ACO 2634 ClG 23 38 18.4 +27 01 37           ~ 503 2
185 NGC 7720 Sy1 23 38 29.38324020 +27 01 53.2580084   13.9 13.3     ~ 541 4
186 2MASX J23443040+0915499 BiC 23 44 30.3996095832 +09 15 50.595906924   15.6       ~ 31 3
187 ACO 2657 ClG 23 44 51.0 +09 08 40           ~ 268 3
188 ACO 4038 ClG 23 47 31.1 -28 12 10           ~ 335 3
189 IC 5358 BiC 23 47 45.1086508608 -28 08 26.650470372   13.42 14.72 11.99   ~ 86 1
190 ACO 2670 ClG 23 54 10.51 -10 23 06.8           ~ 352 0
191 2MASX J23541371-1025084 LIN 23 54 13.6827414192 -10 25 08.481024912   15.32       ~ 53 2
192 ESO 349-10 QSO 23 57 00.7406438328 -34 45 32.994968292   13.89 13.26 12.19   ~ 127 2
193 ACO 4059 ClG 23 57 02.2 -34 45 58           ~ 380 1

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