2006MNRAS.366..438A

Query : 2006MNRAS.366..438A

2006MNRAS.366..438A - Mon. Not. R. Astron. Soc., 366, 438-448 (2006/February-3)

Spatial orientations of galaxies in 10 Abell clusters of BM type II-III.

ARYAL B. and SAURER W.

Abstract (from CDS):

We present an analysis of the spatial orientations of 1315 galaxies in 10 Abell clusters of BM type II-III (type II-III in the Bautz-Morgan system). It is found that the spin-vector orientations of the galaxies in six clusters (Abell 168, 426, 1035, 1227, 1367 and 1904) tend to lie parallel to the Local Supercluster (LSC) plane. The spin-vector projections of galaxies in six clusters (Abell 168, 1020, 1035, 1227, 1904 and 1920) are found to be oriented perpendicular with respect to the direction of the LSC centre. Three clusters (Abell 1920, 2255 and 2256) show a bimodal orientation: spin vectors tend to be oriented both parallel and perpendicular to the LSC plane. No dependence of radial velocity, distance and cluster magnitude on galaxy orientation is noticed. In a comparison with previous work, we noticed that the anisotropy might increase from early-type (BM type I) to late-type (BM types II-III and III) clusters. We notice a vanishing angular momentum for the less massive galaxy clusters (richness class 0). A significant alignment of the angular momenta of galaxies for massive clusters, e.g. the core of the Shapley Supercluster (richness class 4, M > 1015M☉), is found.

Abstract Copyright: 2005 The Authors. Journal compilation © 2005 RAS

Journal keyword(s): galaxies: evolution - galaxies: formation - galaxies: spiral - galaxies: statistics

Simbad objects: 34

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Number of rows : 34
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 ACO 42 ClG 00 28 36.6 -23 36 23           ~ 63 0
2 ACO 168 ClG 01 15 07.58 +00 19 10.8           ~ 379 2
3 NAME Psc-Per Supercluster SCG 02 33.2 +41 37           ~ 444 1
4 ACO 401 ClG 02 58 50.3 +13 34 07           ~ 592 0
5 ACO 426 ClG 03 19 47.6 +41 30 54           ~ 2508 1
6 ACO 1020 ClG 10 27 50.7 +10 24 40           ~ 63 0
7 NAME Great Attractor SCG 10 32 -46.0           ~ 617 0
8 ACO 1035 ClG 10 32 05.91 +40 17 25.9           ~ 88 0
9 ACO 1227 ClG 11 21 33.58 +48 02 24.4           ~ 52 0
10 ACO 1367 ClG 11 44 44.6 +19 41 59           ~ 1127 1
11 ACO 1412 ClG 11 56 04.3 +73 25 05           ~ 65 0
12 NAME Virgo Cluster ClG 12 30 47.8 +12 23 07           ~ 7107 0
13 NAME Local Supercluster SCG 12 31 +12.4           ~ 566 0
14 NAME Shapley Supercluster SCG 13 06.0 -33 04           ~ 677 0
15 ACO 3556 ClG 13 24 06.2 -31 39 38           ~ 159 0
16 ACO 3558 ClG 13 28 03.2 -31 31 35           ~ 476 2
17 ACO 3560 ClG 13 32 23.7 -33 08 21           ~ 145 1
18 ACO 3562 ClG 13 33 31.8 -31 40 23           ~ 337 1
19 ACO 1775 ClG 13 41 50.60 +26 21 10.6           ~ 324 0
20 ACO 1904 ClG 14 22 13.21 +48 35 59.7           ~ 144 0
21 ACO 1920 ClG 14 27 25.25 +55 45 13.5           ~ 46 0
22 ACO 2048 ClG 15 15 14.11 +04 23 10.4           ~ 109 0
23 ACO 2061 ClG 15 21 19.90 +30 37 13.0           ~ 214 1
24 ACO 2065 ClG 15 22 22.7 +27 44 20           ~ 398 0
25 ACO 2151 ClG 16 05 15.0 +17 44 55           ~ 594 3
26 ACO 3627 ClG 16 14 22.5 -60 52 07           ~ 340 2
27 ACO 2197 ClG 16 27 48.01 +40 58 04.5           ~ 290 0
28 ACO 2199 ClG 16 28 34.5 +39 32 26           ~ 1206 1
29 ACO 2256 ClG 17 03 37.5 +78 37 23           ~ 928 1
30 ACO 2255 ClG 17 12 56.0 +64 04 06           ~ 605 0
31 ACO S 794 ClG 17 28 37 -66 41.5           ~ 5 0
32 ACO S 797 ClG 17 52 24 -65 29.7           ~ 5 0
33 ACO S 805 ClG 18 47 14.4 -63 19 45           ~ 137 3
34 ACO 4038 ClG 23 47 31.1 -28 12 10           ~ 349 3

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