The investigations of anisotropy in orientations of galaxies

TL;DR

This paper investigates the anisotropy in galaxy orientations within the Local Supercluster using a modified analysis method, finding only weak anisotropy and discussing its relation to previous methods.

Contribution

It applies a novel modified method for galaxy orientation analysis to the Local Supercluster, providing insights into anisotropy strength and methodological comparisons.

Findings

Weak anisotropy detected in galaxy orientations in LSC

Method relates to Hawley and Peebles' approach

Supports previous findings of anisotropy in galaxy orientations

Abstract

In 1994 Parnovsky, Karachentsev and Karachentseva suggested a modified method for investigation of the orientations of galaxies. Using this method they analyzed galaxies from the UGC and ESO catalogues, as well as from their's own catalogue inclusive of flat, edge-on galaxies. They found statistically significant anisotropy in the galaxies orientations'. In 1995 Flin suggested that this anisotropy has to be specific to LOcal Supercluster (LSC) In the present paper, using the method proposed by Parnovsky, Karachentsev and Karachentseva in 1994, we analyzed orientation of galaxies in the sample of galaxies belonging to LSC founding only a weak anisotropy. The relation of this method to Hawley and Peebles (1975) method of the investigation of the orientation of galaxies was discussed as well.