2001A&A...367...59P

Query : 2001A&A...367...59P

2001A&A...367...59P - Astronomy and Astrophysics, volume 367, 59-71 (2001/2-3)

Luminosity function of clusters of galaxies.

PAOLILLO M., ANDREON S., LONGO G., PUDDU E., GAL R.R., SCARAMELLA R., DJORGOVSKI S.G. and DE CARVALHO R.

Abstract (from CDS):

The composite galaxy luminosity function (hereafter LF) of 39 Abell clusters of galaxies is derived by computing the statistical excess of galaxy counts in the cluster direction with respect to control fields. Due to the wide field coverage of the digitised POSS-II plates, we can measure field counts around each cluster in a fully homogeneous way. Furthermore, the availability of virtually unlimited sky coverage allows us to directly compute the LF errors without having to rely on the estimated variance of the background. The wide field coverage also allows us to derive the LF of the whole cluster, including galaxies located in the cluster outskirts. The global composite LF has a slope α~-1.1±0.2 with minor variations from blue to red filters, and M^*~-21.7,-22.2,-22.4mag (H₀=50km/s/Mpc) in g, r and i filters, respectively (errors are detailed in the text). These results are in quite good agreement with several previous determinations and in particular with the LF determined for the inner region of a largely overlapping set of clusters, but derived making use of a completely different method for background subtraction. The similarity of the two LFs suggests the existence of minor differences between the LF in the cluster outskirts and in the central region, or a negligible contribution of galaxies in the cluster outskirts to the global LF.

Abstract Copyright: ∼

Journal keyword(s): galaxies: clusters: general - galaxies: luminosity function - galaxies: evolution

Simbad objects: 44

Full paper

View the references in ADS

Number of rows : 44

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Sp type	#ref 1850 - 2024	#notes
1	ACO 2703	ClG	00 05 29.30	+16 12 23.5	~	52	0
2	ACO 1	ClG	00 07 34	+16 30.7	~	15	0
3	ACO 16	ClG	00 16 46	+06 44.7	~	31	0
4	ACO 28	ClG	00 25 10.9	+08 07 56	~	13	0
5	ACO 41	ClG	00 28 46	+07 50.6	~	19	0
6	ACO 44	ClG	00 29.6	+12 02	~	22	0
7	ACO 104	ClG	00 49 49.8	+24 27 01	~	48	0
8	ACO 115	ClG	00 55 59.5	+26 19 14	~	265	1
9	ACO 125	ClG	01 00 05.0	+14 15 42	~	18	0
10	ACO 150	ClG	01 09 14	+13 10.0	~	55	0
11	ACO 152	ClG	01 10 09.08	+14 00 33.9	~	40	0
12	ACO 154	ClG	01 10 58.1	+17 39 56	~	140	1
13	ACO 158	ClG	01 11 45	+16 52.9	~	35	0
14	ACO 156	ClG	01 11 45.2	+33 25 57	~	15	0
15	ACO 180	ClG	01 21 52	+03 00.7	~	15	0
16	ACO 192	ClG	01 24 18.4	+04 27 34	~	21	0
17	ACO 202	ClG	01 27 54	+07 16.5	~	6	0
18	ACO 267	ClG	01 52 43.016	+00 59 58.90	~	227	0
19	ACO 279	ClG	01 56 25.73	+01 03 22.4	~	52	0
20	ACO 286	ClG	01 58 25.9	-01 46 39	~	26	0
21	ACO 293	ClG	02 01 46.7	+03 44 58	~	30	1
22	ACO 294	ClG	02 02 12	+05 24.4	~	7	0
23	ACO 295	ClG	02 02 27	-01 04.6	~	65	0
24	ACO 1632	ClG	12 53.0	+28 49	~	21	0
25	ACO 1661	ClG	13 01 42.5	+29 04 38	~	26	0
26	ACO 1667	ClG	13 03 16	+31 48.9	~	34	0
27	ACO 1677	ClG	13 05 52.6	+30 54 06	~	59	0
28	ACO 1679	ClG	13 06 34	+31 48.0	~	12	0
29	ACO 1809	ClG	13 53 07.68	+05 08 32.7	~	169	0
30	ACO 1835	ClG	14 01 02.07	+02 52 43.2	~	684	1
31	ACO 2049	ClG	15 14 44	+31 46.9	~	11	0
32	ACO 2059	ClG	15 20.2	+28 54	~	17	0
33	ACO 2061	ClG	15 21 19.90	+30 37 13.0	~	185	1
34	ACO 2062	ClG	15 21 41.40	+32 07 08.8	~	34	0
35	ACO 2065	ClG	15 22 29.3	+27 42 22	~	367	0
36	ACO 2067	ClG	15 23 14	+30 54.4	~	104	1
37	ACO 2069	ClG	15 24 02.92	+29 53 20.3	~	139	0
38	ACO 2073	ClG	15 25 54.55	+28 27 48.3	~	32	0
39	ACO 2083	ClG	15 29 26	+30 44.7	~	35	0
40	ACO 2089	ClG	15 32 36.89	+28 02 10.1	~	104	0
41	ACO 2092	ClG	15 33 19.99	+31 09 12.3	~	127	0
42	ACO 2177	ClG	16 21 02.6	+25 45 55	~	37	0
43	ACO 2178	ClG	16 21 29	+24 39.0	~	29	0
44	ACO 2223	ClG	16 42 48.93	+27 26 51.0	~	23	0

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