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 (L_b) 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 (L_b/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

Full paper

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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 - 2026	#notes
1	ACO 2734	ClG	00 11 21.60	-28 51 16.6						~	156	0
2	MCG-05-01-040	Sy1	00 11 21.667	-28 51 15.85		14.30	10.08	12.77		~	38	1
3	ZwCl 0024+1652	ClG	00 26 35.6	+17 09 32			18.35			~	648	1
4	IC 1565	BiC	00 39 26.2834752624	+06 44 03.262118424		14.41				~	56	2
5	ACO 76	ClG	00 40 16.1031	+06 52 46.226						~	138	2
6	ACO 85	ClG	00 41 36.21	-09 19 30.4						~	974	0
7	MCG-02-02-086	rG	00 41 50.45002	-09 18 11.4633		14	13.52	12.94		~	154	1
8	ACO 119	ClG	00 56 08.57	-01 12 00.8						~	577	2
9	Z 384-34	BiC	00 56 16.101	-01 15 19.77		14.40	14.45			~	82	1
10	MCG-04-03-044	rG	01 02 41.43	-21 52 41.8		14.54	15.1	12.94		~	77	3
11	ACO 133	ClG	01 02 41.5	-21 52 53						~	391	1
12	NGC 383	AGN	01 07 24.9647814840	+32 24 45.132586200		13.6	12.14			~	821	3
13	Z 385-48	rG	01 14 57.5962100328	+00 25 50.962053144		15.5	13.9			~	80	1
14	ACO 168	ClG	01 15 07.58	+00 19 10.8						~	379	2
15	ZwCl 0120+3300	ClG	01 23 36.9	+33 15 03						~	80	0
16	NGC 507	rG	01 23 39.950	+33 15 22.22		13.0				~	459	1
17	ACO 193	ClG	01 25 07.3	+08 41 36						~	192	0
18	IC 1695	rG	01 25 07.645	+08 41 57.68		14.87				~	68	1
19	NGC 547	rG	01 26 00.6208982520	-01 20 42.432452268		13.16	13.34			~	363	4
20	ACO 194	ClG	01 26 01.3	-01 22 02						~	363	2
21	NGC 708	rG	01 52 46.482	+36 09 06.53	14.85	14.27	13.29	12.67	12.09	~	259	3
22	ACO 262	ClG	01 52 50.4	+36 08 46						~	727	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	161	1
26	MCG+06-07-004	BiC	02 46 03.9460542576	+36 54 18.840411612		15.50				~	46	1
27	2A 0251+413	ClG	02 54 26.6	+41 33 25						~	328	1
28	NGC 1129	BiC	02 54 27.400	+41 34 46.70		14.6	13.6			~	126	1
29	ACO 400	ClG	02 57 37.4	+06 00 45						~	408	3
30	NAME 3C 75A	rG	02 57 41.5615453872	+06 01 36.883348716		14.7				~	65	2
31	ACO 3112	ClG	03 17 52.9	-44 15 06						~	329	1
32	ESO 248-6	QSO	03 17 57.67946154	-44 14 17.1632318		14.85		13.16		~	85	3
33	ACO 426	ClG	03 19 47.6	+41 30 54						~	2508	1
34	NGC 1275	Bla	03 19 48.1599902040	+41 30 42.108850836		13.10	12.48	11.09		~	4243	3
35	ZwCl 0335+0956	ClG	03 38 35.3	+09 57 54						~	402	1
36	2MASX J03384056+0958119	LIN	03 38 40.568	+09 58 11.94		16.5				~	43	1
37	LEDA 13641	BiC	03 42 52.9677368568	-53 37 52.547974500		16.15				~	25	1
38	ACO 3158	ClG	03 43 07.5	-53 38 09						~	327	0
39	ACO 478	ClG	04 13 24.8	+10 27 52						~	522	0
40	2MASX J04132526+1027551	BiC	04 13 25.266	+10 27 55.14						~	24	1
41	ClG 0422-09	ClG	04 25 51.02	-08 33 38.5						~	97	0
42	MCG-01-12-005	BLL	04 25 51.336	-08 33 38.98		15.5		16.9		~	45	3
43	2MASXI J0431133-612712	BiC	04 31 13.2952313064	-61 27 12.013455636		15.30		13.60		~	30	1
44	ACO 3266	ClG	04 31 26.4	-61 25 17						~	447	0
45	MCG-02-12-039	rG	04 33 37.8465077496	-13 15 42.989961204		13.95	14.22			~	104	2
46	ACO 496	ClG	04 33 40.8	-13 14 34						~	728	2
47	ACO 539	ClG	05 16 35.1	+06 27 14						~	255	2
48	Z 421-18	BiC	05 16 37.1428461504	+06 26 53.066655888		14.0				~	37	1
49	ACO 548	ClG	05 47 01.7	-25 36 59						B8	209	2
50	MCG-04-14-033	BiC	05 48 38.3525613720	-25 28 40.090047312		14.02				~	41	0
51	MCG-07-13-003	BiC	06 00 41.120	-40 02 39.82		14.66		12.93		~	48	1
52	ACO 3376	ClG	06 01 25.000	-39 59 51.00						~	334	0
53	ACO 3389	ClG	06 21 47.4	-64 57 35						~	60	3
54	NGC 2235	rG	06 22 22.0743221472	-64 56 02.834016720		14.00		12.13		~	37	2
55	ACO 3391	ClG	06 26 15.4	-53 40 52						~	222	1
56	6dFGS gJ062622.1-534126	G	06 26 22.09173	-53 41 25.9040		15.38		13.18		~	7	0
57	ACO 3395	ClG	06 27 31.1	-54 23 58						~	229	0
58	ESO 161-8	BiC	06 27 36.2649635808	-54 26 57.926377896		15.02		12.72		~	37	0
59	ACO 576	ClG	07 21 24.1	+55 44 20						~	312	1
60	Z 261-56	BiC	07 21 30.2748806208	+55 45 41.806138500		15.62				~	27	1
61	2MASX J08172559-0730455	BiC	08 17 25.598	-07 30 45.59		17.23	15.94	15.24		~	20	0
62	ACO 644	ClG	08 17 26.1	-07 31 13						~	241	0
63	NGC 2563	GiG	08 20 35.6870161656	+21 04 04.111020012		13.7	12.39			~	163	1
64	2MASX J09083238-0937470	BiC	09 08 32.388	-09 37 47.06		14.32		13.32		~	41	2
65	ACO 754	ClG	09 09 14.8	-09 40 35						~	695	1
66	MCG-02-24-007	LIN	09 18 05.66848602	-12 05 43.8060823		14.38	14.8			~	1077	1
67	ACO 780	ClG	09 18 30	-12 15.7						~	469	0
68	NGC 2832	LIN	09 19 46.853	+33 44 59.07		13.3	13.17			~	274	3
69	ACO 779	ClG	09 20 02.70	+33 45 29.7						~	261	0
70	NAME M 81-82 Group	GrG	09 55	+69.1						~	758	0
71	ACO S 636	ClG	10 29 41.0957	-35 19 32.908						~	248	0
72	NGC 3271	BiC	10 30 26.5035080808	-35 21 34.063890048		12.72	11.73	11.03		~	77	1
73	NAME Hydra I Cluster	ClG	10 36 36.0	-27 31 04						~	905	1
74	NGC 3311	EmG	10 36 42.821	-27 31 42.02		11.93	10.93	10.00	9.67	~	310	2
75	NAME M 96 Group	GrG	10 46 45	+11 49.1						~	330	0
76	ACO 1142	ClG	11 00 56.74	+10 30 15.2						~	157	1
77	NGC 3492	BiC	11 00 57.4166378040	+10 30 19.680093432		14.0				~	29	1
78	ACO 1185	ClG	11 10 32.15	+28 35 50.4						~	271	1
79	2MASXI J1110387+284607	BiC	11 10 38.3872047960	+28 46 03.363722076						~	20	1
80	IC 712	rG	11 34 49.2945748128	+49 04 39.576182052		14.8				~	92	1
81	ACO 1314	ClG	11 34 53.0	+49 05 18						~	234	1
82	NGC 3842	BiC	11 44 02.155	+19 56 59.37	14.22	13.70	11.82	12.04		~	308	3
83	ACO 1367	ClG	11 44 44.6	+19 41 59						~	1127	1
84	ACO 1413	ClG	11 55 12.87	+23 23 46.9						~	456	0
85	NGC 4073	BiC	12 04 27.0598775760	+01 53 45.611893752		13.8	13.21	14.249		~	211	1
86	NAME NGC 4073 Group	GrG	12 04 44.08	+01 48 40.9			13.53			~	292	0
87	NAME NGC 4104 Group	GrG	12 06 19.75	+28 07 08.3						~	52	0
88	NGC 4104	rG	12 06 38.9098151088	+28 10 27.184493280		13.7	13.58			~	114	1
89	NAME Virgo Cluster	ClG	12 30 47.8	+12 23 07						~	7107	0
90	ACO 3526	ClG	12 48 49.2	-41 18 17						~	1154	2
91	NGC 4696	rG	12 48 49.2724775784	-41 18 39.304053252		11.21		10.7		~	510	3
92	HCG 62	CGG	12 53 05.6	-09 12 21						~	313	0
93	NGC 4761	BiC	12 53 05.6960048016	-09 12 14.579980632		13.79		11.25		~	90	1
94	2MASX J12571157-1724344	LIN	12 57 11.580	-17 24 34.47		13.50		12.56		~	62	2
95	ACO 1644	ClG	12 57 11.6	-17 24 34						~	391	1
96	2dFGRS TGN256Z066	BiC	12 58 41.495	-01 45 41.02		15.93		14.14		~	24	0
97	ACO 1650	ClG	12 58 42.0	-01 45 45						~	325	0
98	LEDA 88678	EmG	12 59 22.4954602200	-04 11 45.934999800		15.96		14.20		~	21	1
99	ACO 1651	ClG	12 59 27.3	-04 10 49						~	307	0
100	ACO 1656	ClG	12 59 44.40	+27 54 44.9						~	5141	2
101	NGC 4889	EmG	13 00 08.097	+27 58 37.29	12.93	13.0	11.30	11.652	10.906	~	742	1
102	ACO 1689	ClG	13 11 29.5	-01 20 28						~	1178	0
103	NAME NGC 5044 Group	GrG	13 14 22.7	-16 32 04						~	186	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	~	203	1
106	ACO 1736	ClG	13 26 52.1	-27 06 33						~	268	2
107	IC 4252	BiC	13 27 28.044	-27 19 28.85		14.15		12.69	13.02	~	37	1
108	MCG-05-32-026	rG	13 27 56.884	-31 29 43.71		13.88	15	12.24	12.76	~	88	2
109	ACO 3558	ClG	13 28 03.2	-31 31 35						~	476	2
110	2MASX J13314673-3253401	BiC	13 31 46.7746653336	-32 53 40.007504472		15.22		14.83	13.76	~	22	1
111	LEDA 47590	rG	13 32 03.1619332728	-31 46 48.527873652		15.65		13.99	13.43	~	36	0
112	ACO 3560	ClG	13 32 23.7	-33 08 21						~	145	1
113	ACO 3562	ClG	13 33 31.8	-31 40 23						~	337	1
114	ACO 1767	ClG	13 36 06.92	+59 10 34.3						~	182	0
115	MCG+10-19-096	BiC	13 36 08.3225404536	+59 12 23.040788652		16				~	30	1
116	IC 4296	rG	13 36 39.03253319	-33 57 57.0730368		11.52	12.99	10.00	10.79	~	520	2
117	ACO 1795	ClG	13 48 47.4	+26 34 55						~	1330	0
118	Z 162-10	LIN	13 48 52.4892734448	+26 35 34.353002688		14.0				~	241	2
119	IC 4374	Bla	14 07 29.76229070	-27 01 04.2916695		13.61		11.79	12.55	~	142	3
120	ACO 3581	ClG	14 07 29.8	-27 01 04						~	197	3
121	ACO 1914	ClG	14 25 57.4	+37 49 54						~	338	0
122	BAX 220.1796+03.4530	ClG	14 40 34.37	+03 29 49.7			14.31			~	131	0
123	NGC 5718	LIN	14 40 42.835	+03 27 55.52		14.6				~	73	1
124	NGC 5778	rG	14 54 31.4984540808	+18 38 32.499862620		15.6				~	68	3
125	ACO 1991	ClG	14 54 41.53	+18 38 08.4						~	349	1
126	ACO 2029	ClG	15 10 54.2	+05 44 23						~	1020	0
127	IC 1101	rG	15 10 56.100	+05 44 41.19		15.10				~	165	2
128	ACO 2052	ClG	15 16 41.64	+07 01 45.5						~	756	1
129	Z 49-90	Sy2	15 16 44.4893939136	+07 01 17.825410740		15.19	14.17			~	463	4
130	ACT-CL J1521.8+0742	ClG	15 21 48.8	+07 43 41			15.13			~	326	0
131	NGC 5920	LIN	15 21 51.870	+07 42 31.97		15.5				~	137	1
132	2MASX J15215562+2724530	GiC	15 21 55.5979008240	+27 24 53.340943860		15.31				~	12	1
133	ACO 2065	ClG	15 22 22.7	+27 44 20						~	398	0
134	ACO 2063	ClG	15 23 01.8	+08 38 22						~	414	2
135	Z 77-97	rG	15 23 05.2995518184	+08 36 33.193663020		14.71				~	72	2
136	Z 50-18	GiG	15 32 32.0124552816	+04 40 51.645058428		15.3				~	31	1
137	BAX 233.1222+04.6817	ClG	15 32 32.02	+04 40 51.6			15.13			~	66	0
138	ACO 2107	ClG	15 39 39.04	+21 46 57.8						~	270	0
139	Z 136-44	BiC	15 39 39.049	+21 46 57.98		14.76				~	70	2
140	2MASX J15582002+2714000	BiC	15 58 20.000	+27 14 00.28		14.48				~	40	1
141	ACO 2142	ClG	15 58 26.5	+27 13 52						~	825	0
142	ACO 2147	ClG	16 02 11.96	+15 55 11.5						~	416	0
143	Z 108-75	GiG	16 02 19.845	+16 20 46.25		14.6				~	44	1
144	NGC 6041A	BiC	16 04 35.7922766976	+17 43 17.522077764		14.9				~	75	2
145	AWM 4	ClG	16 04 52.01	+23 56 26.9			14.38			~	141	0
146	NGC 6051	LIN	16 04 56.6684912064	+23 55 57.622768392		14.9				~	120	2
147	ACO 2151	ClG	16 05 15.0	+17 44 55						~	594	3
148	ZwCl 1615+3508	ClG	16 17.6	+35 01						~	7	0
149	NGC 6109	LIN	16 17 40.54006	+35 00 15.1861		14.9				~	193	1
150	ACO 2199	ClG	16 28 34.5	+39 32 26						~	1206	1
151	BAX 249.5848-64.5165	ClG	16 38 13.2	-64 21 21						~	123	0
152	ESO 101-4	G	16 38 18.2454371352	-64 21 36.398553300		14.66		12.64		~	13	1
153	ACO 2256	ClG	17 03 37.5	+78 37 23						~	928	1
154	Z 355-27	rG	17 04 27.246	+78 38 26.03		15.5				~	32	1
155	LEDA 59831	rG	17 12 28.8000059448	+64 03 38.754457596						~	35	1
156	ACO 2255	ClG	17 12 56.0	+64 04 06						~	605	0
157	NAME NGC 6329 Group	GrG	17 14 15	+43 41.1						~	9	0
158	NGC 6329	rG	17 14 15.0278110392	+43 41 04.900781508		14.3				~	41	1
159	NGC 6338	Bla	17 15 22.9842192344	+57 24 40.346559927		14.2		8		~	205	2
160	ACO S 805	ClG	18 47 14.4	-63 19 45						~	137	3
161	IC 4765	rG	18 47 18.150	-63 19 52.14		12.33	11.36	10.53	10.75	~	88	2
162	Z 230-7	BiC	19 21 10.0202476008	+43 56 44.124140724		15.3				~	26	1
163	ACO 2319	ClG	19 21 14.0	+43 56 57						~	495	1
164	IC 4965	rG	20 12 27.3267265824	-56 49 36.418283220		14.42		13.17		~	34	1
165	ACO 3667	ClG	20 12 33.68	-56 50 26.3						~	676	1
166	ACO 2390	ClG	21 53 37.4	+17 41 46						~	732	2
167	ACO 3822	ClG	21 54 06.2	-57 50 49						~	98	0
168	2MASX J21550019-5739278	BiC	21 55 00.1433098200	-57 39 27.433683288		16.18				~	15	1
169	HCG 90	CGG	22 02 06.3	-31 55 48						~	133	0
170	NVSS J221018-121014	rG	22 10 18.787	-12 10 14.17		15.00		14.34		~	21	2
171	ACO 2420	ClG	22 10 22.5	-12 11 13						~	126	0
172	ACO 2440	ClG	22 23 52.6	-01 35 47						~	137	1
173	2MASXI J2223569-013459	GiC	22 23 56.946	-01 34 59.31		16.35		14.85		~	11	1
174	ACO S 1101	ClG	23 13 58.5	-42 43 39						~	272	1
175	MCG-07-47-023	rG	23 13 58.6501915464	-42 43 39.089945856		14.68	14.6	14.537		~	56	3
176	BAX 349.3187+18.7197	ClG	23 17 11.184	+18 41 48.87						~	97	0
177	NGC 7578	BiC	23 17 13.5451937976	+18 42 29.351084940		15.0		12.93		~	76	1
178	NGC 7647	BiC	23 23 57.4310112528	+16 46 38.141670936		14.61	14.45			~	79	0
179	ACO 2589	ClG	23 24 00.5	+16 49 29						~	327	1
180	NGC 7649	rG	23 24 20.087	+14 38 49.68		15.65				~	62	1
181	ACO 2593	ClG	23 24 27.15	+14 33 40.2						~	231	0
182	IC 5338	rG	23 36 30.6135053136	+21 08 50.535313476		15.5				~	92	2
183	ACO 2626	ClG	23 36 31.0	+21 09 36						~	265	0
184	ACO 2634	ClG	23 38 18.4	+27 01 37						~	515	2
185	NGC 7720	Sy1	23 38 29.38324020	+27 01 53.2580084		13.9	13.3			~	565	4
186	Z 407-50	BiC	23 44 30.3996095832	+09 15 50.595906924		15.6				~	34	3
187	ACO 2657	ClG	23 44 51.0	+09 08 40						~	280	3
188	ACO 4038	ClG	23 47 31.1	-28 12 10						~	349	3
189	IC 5358	rG	23 47 45.1086508608	-28 08 26.650470372		13.42	14.72	11.99		~	88	1
190	ACO 2670	ClG	23 54 10.51	-10 23 06.8						~	364	0
191	2MASX J23541371-1025084	LIN	23 54 13.6827414192	-10 25 08.481024912		15.32				~	55	2
192	MCG-06-01-008	QSO	23 57 00.7406438328	-34 45 32.994968292		13.89	13.26	12.19		~	131	2
193	ACO 4059	ClG	23 57 02.2	-34 45 58						~	400	1

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