The Orientation of Galaxies in Galaxy Clusters

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dc.contributor.authorGodlowski, Wlodzimierz
dc.contributor.authorPajowska, Paulina
dc.contributor.authorPanko, Olena O.
dc.contributor.authorFlin, Piotr
dc.contributor.authorПанько, Олена Олексіївна
dc.contributor.authorПанько, Елена Алексеевна
dc.date.accessioned2019-05-17T06:19:07Z
dc.date.available2019-05-17T06:19:07Z
dc.date.issued2010
dc.description.abstractWe present an analysis of the spatial orientations of galaxies in 247 optically selected rich Abell clusters which have at least 100 members in the considered area.We investigated the relation between angles that give information about galaxy angular momenta and the number of members in each structure. The position angles of the galaxies’ major axes, as well as two angles describing the spatial orientation of the galaxy plane, were tested for isotropy by applying three different statistical tests. It is found that the values of the statistics increase with the amount of the galaxies’ members, which is equivalent to the existence of a relation between anisotropy and the number of galaxies in a cluster. The search for connection between the galaxies’ alignments and Bautz–Morgan (BM) morphological types of examined clusters showed a weak dependence. A statistically marginal relation between velocity dispersion and cluster richness was observed. In addition, it was found that the velocity dispersion decreases with BM type at almost 3σ level. These results show the dependence of alignments with respect to clusters’ richness, which can be regarded as an environmental effect.uk_UA
dc.identifier.citationThe Astrophysical Journaluk_UA
dc.identifier.urihttps://dspace.onu.edu.ua/handle/123456789/24049
dc.language.isoenuk_UA
dc.relation.ispartofseries;Vol. 723, is. 2.
dc.subjectgalaxiesuk_UA
dc.subjectclustersuk_UA
dc.subjectgeneraluk_UA
dc.titleThe Orientation of Galaxies in Galaxy Clustersuk_UA
dc.typeArticleuk_UA
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