2015A&A...581A..11M

Query : 2015A&A...581A..11M

2015A&A...581A..11M - Astronomy and Astrophysics, volume 581A11-11 (2015/9-1)

Galaxy luminosity functions in WINGS clusters.

MORETTI A., BETTONI D., POGGIANTI B.M., FASANO G., VARELA J., D'ONOFRIO M., VULCANI B., CAVA A., FRITZ J., COUCH W.J., MOLES M. and KJAERGAARD P.

Abstract (from CDS):

Using V band photometry of the WINGS survey, we derive galaxy luminosity functions (LF) in nearby clusters. This sample is complete down to M_V=-15.15, and it is homogeneous, thus facilitating the study of an unbiased sample of clusters with different characteristics. We constructed the photometric LF for 72 out of the original 76 WINGS clusters, excluding only those without a velocity dispersion estimate. For each cluster we obtained the LF for galaxies in a region of radius = 0.5xr₂₀₀, and fitted them with single and double Schechter's functions. We also derive the composite LF for the entire sample, and those pertaining to different morphological classes. Finally, we derive the spectroscopic cumulative LF for 2009 galaxies that are cluster members. The double Schechter fit parameters are correlated neither with the cluster velocity dispersion nor with the X-ray luminosity. Our median values of the Schechter's fit slope are, on average, in agreement with measurements of nearby clusters, but are less steep that those derived from large surveys, such as the SDSS. Early-type galaxies out number late-types at all magnitudes, but both early and late types contribute equally to the faint end of the LF. Finally, the spectroscopic LF is in excellent agreement with the one derived for A2199, A85 and Virgo, and with the photometric LF at the bright magnitudes (where both are available). There is a large spread in the LF of different clusters, however, this spread is not caused by correlation of the LF shape with cluster characteristics such as X-ray luminosity or velocity dispersions. The faint end is flatter than previously derived (α_f=-1.7), which is at odds with that predicted from numerical simulations.

Abstract Copyright: ∼

Journal keyword(s): galaxies: clusters: general - galaxies: luminosity function, mass function - galaxies: statistics

VizieR on-line data: <Available at CDS (J/A+A/581/A11): table1.dat>

Simbad objects: 72

Full paper

View the references in ADS

Number of rows : 72

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag B	Mag V	Sp type	#ref 1850 - 2026	#notes
1	ACO 2717	ClG	00 03 12.9	-35 56 13			~	146	0
2	ACO 2734	ClG	00 11 21.60	-28 51 16.6			~	156	0
3	ELAIS S1	reg	00 34 44	-43 28.2			~	254	0
4	ACO 85	ClG	00 41 36.21	-09 19 30.4			~	974	0
5	ACO 119	ClG	00 56 08.57	-01 12 00.8			~	577	2
6	ACO 133	ClG	01 02 41.5	-21 52 53			~	391	1
7	ACO 147	ClG	01 08 10	+02 10.0			~	117	0
8	ACO 151	ClG	01 08 52.3	-15 25 01			~	199	1
9	ACO 160	ClG	01 12 59.98	+15 30 05.3			~	181	0
10	ACO 168	ClG	01 15 07.58	+00 19 10.8			~	379	2
11	ACO 193	ClG	01 25 07.3	+08 41 36			~	192	0
12	ACO 376	ClG	02 45 48	+36 51.6			B8.5	161	1
13	ACO 3128	ClG	03 29 50.6	-52 34 48			~	183	3
14	ACO 3158	ClG	03 43 07.5	-53 38 09			~	327	0
15	ACO 3266	ClG	04 31 26.4	-61 25 17			~	447	0
16	ACO 500	ClG	04 38 55.0	-22 05 55			~	89	0
17	ACO 3376	ClG	06 01 25.000	-39 59 51.00			~	334	0
18	ACO 3395	ClG	06 27 31.1	-54 23 58			~	229	0
19	ACO 602	ClG	07 53 23.51	+29 20 20.3			~	80	0
20	ACO 671	ClG	08 28 48.68	+30 27 07.0			~	168	0
21	ACO 754	ClG	09 09 14.8	-09 40 35			~	695	1
22	ACO 780	ClG	09 18 30	-12 15.7			~	469	0
23	ZwCl 0959+3257	ClG	10 02 42.16	+32 43 37.2			~	41	0
24	ACO 957	ClG	10 14 02.35	-00 53 30.0			~	225	2
25	ACO 970	ClG	10 17 34.3	-10 42 01			~	93	0
26	BAX 155.5304+38.5153	ClG	10 22 18.24	+38 32 39.6			~	63	0
27	ACO 1069	ClG	10 39 54.3	-08 36 40			~	116	1
28	ACO 1291	ClG	11 32 11.20	+56 01 31.3			~	135	0
29	ACO 3490	ClG	11 45 19.6	-34 25 59			~	55	1
30	ACO 3497	ClG	12 00 03	-31 23.7			~	42	0
31	ACO 1631	ClG	12 52 50.6	-15 25 37			~	176	1
32	BAX 193.5900-29.0100	ClG	12 54 22.1	-29 00 46			~	45	0
33	BAX 193.6700-29.2254	ClG	12 54 40.6	-29 13 44			~	76	0
34	ACO 3530	ClG	12 55 36.0	-30 20 49			~	109	0
35	ACO 1644	ClG	12 57 11.6	-17 24 34			~	391	1
36	ACO 3532	ClG	12 57 19.2	-30 22 13			~	185	2
37	ACO 1668	ClG	13 04 00.60	+19 17 09.6			~	132	0
38	ACO 3556	ClG	13 24 06.2	-31 39 38			~	159	0
39	ACO 1736	ClG	13 26 52.1	-27 06 33			~	268	2
40	ACO 3558	ClG	13 28 03.2	-31 31 35			~	476	2
41	ACO 3560	ClG	13 32 23.7	-33 08 21			~	145	1
42	ACO 1795	ClG	13 48 47.4	+26 34 55			~	1330	0
43	ACO 1831	ClG	13 59 19.42	+27 58 08.2			~	166	0
44	ACO 1983	ClG	14 52 59.33	+16 46 11.0			~	249	1
45	ACO 1991	ClG	14 54 41.53	+18 38 08.4			~	349	1
46	ACT-CL J1521.8+0742	ClG	15 21 48.8	+07 43 41		15.13	~	326	0
47	ACO 2107	ClG	15 39 39.04	+21 46 57.8			~	270	0
48	ACO 2122	ClG	15 44 55.93	+36 06 05.2			~	243	0
49	ACO 2149	ClG	16 00 53.08	+53 56 57.6			~	79	0
50	ACO 2169	ClG	16 13 59.22	+49 07 07.2			~	64	0
51	ACO 2199	ClG	16 28 34.5	+39 32 26			~	1206	1
52	ACO 2256	ClG	17 03 37.5	+78 37 23			~	928	1
53	ACO 2271	ClG	17 17 17.5	+78 01 00			~	70	0
54	BAX 265.1346+35.6492	ClG	17 40 32.7	+35 38 51			~	36	0
55	ZwCl 1810+4949	ClG	18 11 00.1	+49 54 40		14.8	~	60	0
56	ACO 3667	ClG	20 12 33.68	-56 50 26.3			~	676	1
57	ACO 3716	ClG	20 51 16.7	-52 41 43			~	123	1
58	Z 375-15	BiC	21 13 55.918	+02 33 55.39	15.1		~	67	1
59	ACO 3809	ClG	21 46 57.5	-43 54 06			~	99	0
60	ACO 2382	ClG	21 51 57.2984	-15 36 48.067			~	122	0
61	ACO 2399	ClG	21 57 19.01	-07 50 57.5			~	197	0
62	ACO 2415	ClG	22 05 25.0	-05 35 23			~	124	1
63	ACO 3880	ClG	22 27 49.5	-30 34 40			~	104	2
64	ACO 2457	ClG	22 35 40.30	+01 31 33.6			~	139	0
65	ZwCl 2307+0713	ClG	23 10 26.6	+07 35 13			~	60	0
66	ACO 2572	ClG	23 18 31.2	+18 41 52			~	142	1
67	ACO 2589	ClG	23 24 00.5	+16 49 29			~	327	1
68	ACO 2593	ClG	23 24 27.15	+14 33 40.2			~	231	0
69	ACO 2622	ClG	23 34 53	+27 25.6			~	93	0
70	ACO 2626	ClG	23 36 31.0	+21 09 36			~	265	0
71	ACO 2657	ClG	23 44 51.0	+09 08 40			~	280	3
72	ACO 4059	ClG	23 57 02.2	-34 45 58			~	400	1

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