2008A&A...479..397A


C.D.S. - SIMBAD4 rel 1.7 - 2021.03.08CET02:35:36

2008A&A...479..397A - Astronomy and Astrophysics, volume 479, 397-407 (2008/2-4)

Coexistence of chiral symmetry restoration and random orientation of galaxies.

ARYAL B., PAUDEL S. and SAURER W.

Abstract (from CDS):

We studied the chiral symmetry restoration and the spatial orientation of 2288 spiral and spiral barred galaxies that have radial velocities (RV) less than 5000km/s. A random direction of the rotation of galaxies is assumed in order to classify the structural modes. The distribution of spin vector and spin vector projections of leading and trailing arm galaxies in the total sample and subsamples are studied. We use chi-square, auto-correlation and Fourier tests in order to discriminate the preferred alignments from the random alignments. A good correlation between the random alignment and the chiral symmetry is noticed in the Local Supercluster (RV<3000km/s) and in galaxies nearby the Local Supercluster (3000<RV(km/s)≤5000). Spiral galaxies show a similar result. The barred spirals show an opposite trend to that observed for the spirals. Nearby the Local Supercluster, we noticed a preferred spatial alignment and non-chiral property in the leading and trailing arm spiral barred galaxies. Our result predicts that the progressive loss of chirality might have some connection with the rotationally supported (spirals, barred spirals) and randomized (lenticulars, ellipticals) systems. Thus, we suspect that the dynamical processes in the cluster evolution give rise to a dynamical loss of chirality.

Abstract Copyright:

Journal keyword(s): Galaxy: formation - galaxies: statistics - Galaxy: evolution - Galaxy: structure

Simbad objects: 6

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Number of rows : 6

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 MCG-01-03-085 LSB 01 05 04.8750013529 -06 12 44.774568397   12.1   12.1 12.0 ~ 80 0
2 ACO 426 ClG 03 19 47.2 +41 30 47           ~ 2002 1
3 NGC 1784 GiG 05 05 27.118 -11 52 17.12   11.4   10.92 11.5 ~ 105 0
4 NAME Vir I ClG 12 26 32.1 +12 43 24   10.00 8.49     ~ 5988 0
5 NAME LOCAL SUPERCL SCG 12 31 +12.4           ~ 461 0
6 ACO 3627 ClG 16 14 22.5 -60 52 07           ~ 255 2

    Equat.    Gal    SGal    Ecl

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2021.03.08-02:35:36

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