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

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Number of rows : 44
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 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           ~ 270 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           ~ 41 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           ~ 229 0
19 ACO 279 ClG 01 56 25.73 +01 03 22.4           ~ 53 0
20 ACO 286 ClG 01 58 25.9 -01 46 39           ~ 27 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           ~ 62 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           ~ 171 0
30 ACO 1835 ClG 14 01 02.07 +02 52 43.2           ~ 688 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           ~ 191 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           ~ 374 0
36 ACO 2067 ClG 15 23 14 +30 54.4           ~ 107 1
37 ACO 2069 ClG 15 24 02.92 +29 53 20.3           ~ 143 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           ~ 106 0
41 ACO 2092 ClG 15 33 19.99 +31 09 12.3           ~ 128 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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