1998A&A...331..493A


Query : 1998A&A...331..493A

1998A&A...331..493A - Astronomy and Astrophysics, volume 331, 493-505 (1998/3-2)

The ESO nearby Abell cluster survey. IV. The fundamental plane of clusters of galaxies.

ADAMI C., MAZURE A., BIVIANO A., KATGERT P. and RHEE G.

Abstract (from CDS):

We have used the ESO Nearby Abell Cluster Survey (ENACS) in combination with the Cosmos Galaxy Catalogue, to investigate the existence of a Fundamental Plane (FP) for rich clusters of galaxies. The 20 clusters with the most regular projected galaxy distributions appear to define a quite narrow FP, which is similar to the FP found by Schaeffer et al., who used other clusters. Our cluster FP appears to be different from that of ellipticals, as well as from the virial prediction. The latter fact may have several physical explanations, or a combination thereof. If M/L varies with L this will change the FP slope away from the virial slope. Differences in dynamical structure between clusters will also produce deviations from the virial FP. In view of the long virialization time-scales in all but the very central parts of galaxy clusters, the deviation of the cluster FP from the virial expectation may also result from clusters not being totally virialized. The scatter of the observations around the cluster FP is fairly small. An important part of the observed scatter is likely to be intrinsic. If this intrinsic spread were due exclusively to deviations from the Hubble flow it would imply cluster peculiar velocities of at most about 1000km/s.

Abstract Copyright:

Journal keyword(s): Cosmology: observations - clusters: general

Simbad objects: 27

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Number of rows : 27
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 ACO 2734 ClG 00 11 21.60 -28 51 16.6           ~ 133 0
2 ACO 13 ClG 00 13 38.5 -19 30 19           ~ 97 1
3 ACO 2764 ClG 00 20 27 -49 13.3           ~ 25 0
4 ACO 2799 ClG 00 37 28.1 -39 08 59           ~ 40 0
5 ACO 2800 ClG 00 37 58 -25 05.5           ~ 41 0
6 ACO 87 ClG 00 43 01 -09 47.6           ~ 45 0
7 ACO 119 ClG 00 56 16.8 -01 15 00           ~ 534 2
8 ACO 2854 ClG 01 00 46.20 -50 31 24.7           ~ 31 2
9 ACO 151 ClG 01 08 52.3 -15 25 01           ~ 183 1
10 ACO 168 ClG 01 15 09.8 +00 14 51           ~ 344 2
11 ACO 2911 ClG 01 26 12.9 -37 56 22           ~ 63 0
12 ACO 2923 ClG 01 31 50.60 -31 23 43.4           ~ 23 0
13 ACO 367 ClG 02 36 36.0 -19 22 16           ~ 49 0
14 ACO 3111 ClG 03 17 49.3 -45 42 24           ~ 36 0
15 ACO 3112 ClG 03 17 52.4 -44 14 35           ~ 297 1
16 ACO 3122 ClG 03 22 10.9 -41 20 15           ~ 56 0
17 ACO 3128 ClG 03 30 34.6 -52 33 12           ~ 171 3
18 ACO 3202 ClG 04 00 14 -53 39.6           ~ 28 0
19 ACO 514 ClG 04 47 40.0 -20 25 44           ~ 137 0
20 ACO 1069 ClG 10 39 54.3 -08 36 40           ~ 106 1
21 ACO 3733 ClG 21 01 50.0 -28 06 54           ~ 61 3
22 ACO 3764 ClG 21 25 55.1 -34 43 28           ~ 28 0
23 ACO 2362 ClG 21 40 43 -14 16.3           ~ 37 0
24 ACO 3825 ClG 21 58 22.4 -60 23 39           ~ 57 0
25 ACO 3827 ClG 22 01 49.1 -59 57 15           ~ 143 0
26 ACO 2480 ClG 22 46 04 -17 41.2           ~ 36 0
27 ACO 2644 ClG 23 41 05 +00 05.3           ~ 41 0

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2022.05.20-19:29:20

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