2004ApJ...610..745L

Query : 2004ApJ...610..745L

2004ApJ...610..745L - Astrophys. J., 610, 745-761 (2004/August-1)

K-band properties of galaxy clusters and groups: luminosity function, radial distribution, and halo occupation number.

LIN Y.-T., MOHR J.J. and STANFORD S.A.

Abstract (from CDS):

We explore the near-infrared (NIR) K-band properties of galaxies within 93 galaxy clusters and groups using data from the Two Micron All Sky Survey. We use X-ray properties of these clusters to pinpoint cluster centers and estimate cluster masses. By stacking all these systems, we study the shape of the cluster luminosity function and the galaxy distribution within the clusters. We find that the galaxy profile is well described by the Navarro, Frenk, & White (NFW) profile with a concentration parameter c∼3, with no evidence for cluster mass dependence of the concentration. Using this sample, whose masses span the range from 3x10¹³ to 2x10¹⁵M_☉, we confirm the existence of a tight correlation between total galaxy NIR luminosity and cluster binding mass, which indicates that NIR light can serve as a cluster mass indicator. From the observed galaxy profile, together with cluster mass profile measurements from the literature, we find that the mass-to-light ratio is a weakly decreasing function of cluster radius and that it increases with cluster mass. We also derive the mean number of galaxies within halos of a given mass, the halo occupation number. We find that the mean number scales as N∝M^0.84±0.04 for galaxies brighter than M_K=-21, indicating that high-mass clusters have fewer galaxies per unit mass than low-mass clusters. Using published observations at high redshift, we show that higher redshift clusters have higher mean occupation numbers than nearby systems of the same mass. By comparing the luminosity function and radial distribution of galaxies in low-mass and high-mass clusters, we show that there is a marked decrease in the number density of galaxies fainter than M_*as one moves to higher mass clusters; in addition, extremely luminous galaxies are more probable in high-mass clusters. We explore several processes, including tidal interactions and merging, as a way of explaining the variation in galaxy population with cluster mass.

Abstract Copyright: ∼

Journal keyword(s): Cosmology: Observations - Galaxies: Clusters: General - Galaxies: Formation - Galaxies: Luminosity Function, Mass Function - Infrared: Galaxies

CDS comments: Table 2 : ZwCl 1615 = ZwCl 1615+3508

Simbad objects: 100

Full paper

View the references in ADS

Number of rows : 100

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	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	ACO 76	ClG	00 40 16.1031	+06 52 46.226					~	138	2
3	ACO 85	ClG	00 41 36.21	-09 19 30.4					~	974	0
4	ACO 119	ClG	00 56 08.57	-01 12 00.8					~	577	2
5	ACO 133	ClG	01 02 41.5	-21 52 53					~	391	1
6	NAME NGC 383 Group	GrG	01 07 27.7	+32 23 59	11.1	14.1			~	85	0
7	ACO 168	ClG	01 15 07.58	+00 19 10.8					~	379	2
8	ZwCl 0120+3300	ClG	01 23 36.9	+33 15 03					~	80	0
9	NAME NGC 507 Group	GrG	01 23 39.91	+33 15 21.8					~	82	0
10	NGC 507	rG	01 23 39.950	+33 15 22.22	13.0				~	459	1
11	ACO 193	ClG	01 25 07.3	+08 41 36					~	192	0
12	ACO 194	ClG	01 26 01.3	-01 22 02					~	363	2
13	ACO 262	ClG	01 52 50.4	+36 08 46					~	727	1
14	ACO 376	ClG	02 45 48	+36 51.6					B8.5	161	1
15	2A 0251+413	ClG	02 54 26.6	+41 33 25					~	328	1
16	ACO 400	ClG	02 57 37.4	+06 00 45					~	408	3
17	ACO 3112	ClG	03 17 52.9	-44 15 06					~	329	1
18	ACO 426	ClG	03 19 47.6	+41 30 54					~	2508	1
19	ZwCl 0335+0956	ClG	03 38 35.3	+09 57 54					~	402	1
20	ACO 3158	ClG	03 43 07.5	-53 38 09					~	327	0
21	ACO 478	ClG	04 13 24.8	+10 27 52					~	522	0
22	ClG 0422-09	ClG	04 25 51.02	-08 33 38.5					~	97	0
23	ACO 3266	ClG	04 31 26.4	-61 25 17					~	447	0
24	ACO 496	ClG	04 33 40.8	-13 14 34					~	728	2
25	ACO 539	ClG	05 16 35.1	+06 27 14					~	255	2
26	ACO 548	ClG	05 47 01.7	-25 36 59					B8	209	2
27	ACO 3376	ClG	06 01 25.000	-39 59 51.00					~	334	0
28	ACO 3389	ClG	06 21 47.4	-64 57 35					~	60	3
29	ACO 3391	ClG	06 26 15.4	-53 40 52					~	222	1
30	ACO 3395	ClG	06 27 31.1	-54 23 58					~	229	0
31	ACO 576	ClG	07 21 24.1	+55 44 20					~	312	1
32	ACO 644	ClG	08 17 26.1	-07 31 13					~	241	0
33	NGC 2563	GiG	08 20 35.6870161656	+21 04 04.111020012	13.7	12.39			~	163	1
34	NAME NGC 2563 Group	GrG	08 20 39.46	+21 04 45.6					~	41	0
35	ACO 754	ClG	09 09 14.8	-09 40 35					~	695	1
36	ACO 780	ClG	09 18 30	-12 15.7					~	469	0
37	ACO 779	ClG	09 20 02.70	+33 45 29.7					~	261	0
38	ACO S 636	ClG	10 29 41.0957	-35 19 32.908					~	248	0
39	NAME Hydra I Cluster	ClG	10 36 36.0	-27 31 04					~	905	1
40	ACO 1142	ClG	11 00 56.74	+10 30 15.2					~	157	1
41	ACO 1185	ClG	11 10 32.15	+28 35 50.4					~	271	1
42	ACO 1314	ClG	11 34 53.0	+49 05 18					~	234	1
43	ACO 1367	ClG	11 44 44.6	+19 41 59					~	1127	1
44	NAME NGC 4073 Group	GrG	12 04 44.08	+01 48 40.9		13.53			~	292	0
45	NAME NGC 4104 Group	GrG	12 06 19.75	+28 07 08.3					~	52	0
46	ACO 3526	ClG	12 48 49.2	-41 18 17					~	1154	2
47	HCG 62	CGG	12 53 05.6	-09 12 21					~	313	0
48	ACO 1644	ClG	12 57 11.6	-17 24 34					~	391	1
49	ACO 1650	ClG	12 58 42.0	-01 45 45					~	325	0
50	ACO 1651	ClG	12 59 27.3	-04 10 49					~	307	0
51	ACO 1656	ClG	12 59 44.40	+27 54 44.9					~	5141	2
52	HMS 1313-1612	ClG	13 16	-16.5					~	13	0
53	ACO 1736	ClG	13 26 52.1	-27 06 33					~	268	2
54	ACO 3558	ClG	13 28 03.2	-31 31 35					~	476	2
55	ACO 3560	ClG	13 32 23.7	-33 08 21					~	145	1
56	ACO 3562	ClG	13 33 31.8	-31 40 23					~	337	1
57	NAME IC 4296 Group	GrG	13 33 34	-33 37.3					~	19	0
58	ACO 1767	ClG	13 36 06.92	+59 10 34.3					~	182	0
59	ACO 3565	ClG	13 36 39	-33 58.3					~	116	1
60	IC 4296	rG	13 36 39.03253319	-33 57 57.0730368	11.52	12.99	10.00	10.79	~	520	2
61	ACO 1795	ClG	13 48 47.4	+26 34 55					~	1330	0
62	ACO 3581	ClG	14 07 29.8	-27 01 04					~	197	3
63	BAX 220.1796+03.4530	ClG	14 40 34.37	+03 29 49.7		14.31			~	131	0
64	ACO 1991	ClG	14 54 41.53	+18 38 08.4					~	349	1
65	ACO 2029	ClG	15 10 54.2	+05 44 23					~	1020	0
66	ACO 2052	ClG	15 16 41.64	+07 01 45.5					~	756	1
67	ACT-CL J1521.8+0742	ClG	15 21 48.8	+07 43 41		15.13			~	326	0
68	ACO 2065	ClG	15 22 22.7	+27 44 20					~	398	0
69	ACO 2063	ClG	15 23 01.8	+08 38 22					~	414	2
70	BAX 233.1222+04.6817	ClG	15 32 32.02	+04 40 51.6		15.13			~	66	0
71	ACO 2107	ClG	15 39 39.04	+21 46 57.8					~	270	0
72	ACO 2142	ClG	15 58 26.5	+27 13 52					~	825	0
73	ACO 2147	ClG	16 02 11.96	+15 55 11.5					~	416	0
74	AWM 4	ClG	16 04 52.01	+23 56 26.9		14.38			~	141	0
75	ACO 2151	ClG	16 05 15.0	+17 44 55					~	594	3
76	ZwCl 1615+3508	ClG	16 17.6	+35 01					~	7	0
77	ACO 2199	ClG	16 28 34.5	+39 32 26					~	1206	1
78	BAX 249.5848-64.5165	ClG	16 38 13.2	-64 21 21					~	123	0
79	ACO 2256	ClG	17 03 37.5	+78 37 23					~	928	1
80	ACO 2255	ClG	17 12 56.0	+64 04 06					~	605	0
81	NAME NGC 6329 Group	GrG	17 14 15	+43 41.1					~	9	0
82	NGC 6329	rG	17 14 15.0278110392	+43 41 04.900781508	14.3				~	41	1
83	NGC 6338	Bla	17 15 22.9842192344	+57 24 40.346559927	14.2		8		~	205	2
84	NAME NGC 6338 Group	GrG	17 15 32.47	+57 25 19.0					~	95	0
85	ACO S 805	ClG	18 47 14.4	-63 19 45					~	137	3
86	ACO 2319	ClG	19 21 14.0	+43 56 57					~	495	1
87	ACO 3667	ClG	20 12 33.68	-56 50 26.3					~	676	1
88	ACO 3822	ClG	21 54 06.2	-57 50 49					~	98	0
89	ACO 2420	ClG	22 10 22.5	-12 11 13					~	126	0
90	ACO 2440	ClG	22 23 52.6	-01 35 47					~	137	1
91	ACO S 1101	ClG	23 13 58.5	-42 43 39					~	272	1
92	BAX 349.3187+18.7197	ClG	23 17 11.184	+18 41 48.87					~	97	0
93	ACO 2589	ClG	23 24 00.5	+16 49 29					~	327	1
94	ACO 2593	ClG	23 24 27.15	+14 33 40.2					~	231	0
95	ACO 2626	ClG	23 36 31.0	+21 09 36					~	265	0
96	ACO 2634	ClG	23 38 18.4	+27 01 37					~	515	2
97	ACO 2657	ClG	23 44 51.0	+09 08 40					~	280	3
98	ACO 4038	ClG	23 47 31.1	-28 12 10					~	349	3
99	ACO 2670	ClG	23 54 10.51	-10 23 06.8					~	364	0
100	ACO 4059	ClG	23 57 02.2	-34 45 58					~	400	1

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