2005MNRAS.360..125A


Query : 2005MNRAS.360..125A

2005MNRAS.360..125A - Mon. Not. R. Astron. Soc., 360, 125-132 (2005/June-2)

Spin vector orientation of galaxies in the region 15h48m≤α(2000) ≤ 19h28m, -68°≤δ(2000) ≤-62°.

ARYAL B. and SAURER W.

Abstract (from CDS):

We present an analysis of the orientations of 1433 galaxies found in the region 15h48m≤α(2000) ≤ 19h28m, -68°≤δ(2000) ≤-62°. In this region we investigated three Abell clusters (S0794, S0797, S0805) of richness Class 0 and the Triangulum Australis cluster. Our aim is to examine non-random effects in galaxy orientations in clusters. In addition, we classified the investigated galaxies into subsamples on the basis of their axial ratio, major diameter and morphology. The spin vector orientations of total galaxies in the investigated region is found to be random. No preferred orientation is found in the clusters. We could not note any morphological dependence of the galaxy orientations in our samples. No preferred orientations can be seen for the spiral galaxies. The morphologically unidentified galaxies, galaxies having major diameters of <47 arcsec, and the nearly edge-on galaxies (b/a < 0.5, 0.4 < b/a≤ 0.5) show anisotropy: spin vectors of galaxies tend to be oriented perpendicular to the Local Supercluster plane and spin vector projections tend to point radially with respect to the Virgo cluster centre.

Abstract Copyright: 2005 RAS

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

CDS comments: Table 2 (p.127) AS0795 is a misprint for AS0794.

Simbad objects: 18

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Number of rows : 18
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 42 ClG 00 28 36.6 -23 36 23           ~ 61 0
2 ACO 1412 ClG 11 56 04.3 +73 25 05           ~ 64 0
3 NAME Virgo Cluster ClG 12 26 32.1 +12 43 24           ~ 6642 0
4 NAME LOCAL SUPERCL SCG 12 31 +12.4           ~ 519 0
5 ACO 3558 ClG 13 27 54.8 -31 29 32           ~ 442 2
6 ACO 3560 ClG 13 32 23.7 -33 08 21           ~ 133 1
7 ACO 3562 ClG 13 33 31.8 -31 40 23           ~ 314 1
8 ACO 1775 ClG 13 41 50.60 +26 21 10.6           ~ 304 0
9 ACO 2048 ClG 15 15 14.11 +04 23 10.4           ~ 102 0
10 ACO 2061 ClG 15 21 19.90 +30 37 13.0           ~ 191 1
11 ACO 2065 ClG 15 22 29.3 +27 42 22           ~ 374 0
12 ACO 2151 ClG 16 05 15.0 +17 44 55           ~ 578 3
13 ACO 2197 ClG 16 27 48.01 +40 58 04.5           ~ 285 0
14 BAX 249.5848-64.5165 ClG 16 38 16.1 -64 20 50           ~ 115 0
15 ACO S 794 ClG 17 28 37 -66 41.5           ~ 5 0
16 ACO S 797 ClG 17 52 24 -65 29.7           ~ 5 0
17 ACO S 805 ClG 18 47 14.4 -63 19 45           ~ 133 3
18 ACO 4038 ClG 23 47 31.1 -28 12 10           ~ 335 3

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