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Astronomy Reports

, Volume 62, Issue 12, pp 911–916 | Cite as

Regular Substructures in the Rich Open Galaxy Clusters

  • E. A. PankoEmail author
  • S. M. Andrievsky
  • S. I. Yemelianov
  • A. M. Stepaniuk
Article
  • 6 Downloads

Abstract

We present the results of study the 2D distribution of galaxies in 254 rich open galaxy clusters. The clusters have no concentration to the center, so all kinds of substructures are clearly seen. Regular linear substructures in galaxy clusters were described in Rood & Sastry scheme of morphological types according to positions of 10 brightest galaxies. Another types of regular substructures were missed. Our study fills the lacuna. We have found about 25% of clusters in our data set having four kinds of regular substructures, beyond founded before linear ones. New kinds of regular substructures are: crossing and divaricating filaments or X and Y-type peculiarities, as well as curved strips and short dense chains. We suppose the distribution of dark matter in founded galaxy clusters with substructures have corresponded regular peculiarities. Hot gas distribution in these clusters must be observed distorted X-ray halo. We suppose also the clusters will evolve in the different ways.

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Copyright information

© Pleiades Publishing, Ltd. 2018

Authors and Affiliations

  • E. A. Panko
    • 1
    Email author
  • S. M. Andrievsky
    • 1
  • S. I. Yemelianov
    • 2
  • A. M. Stepaniuk
    • 3
  1. 1.Mechnikov Odessa National UniversityOdessaUkraine
  2. 2.Sukhomlinsky Nikolaev National UniversityNikolaevUkraine
  3. 3.Lohika CompanyOdessaUkraine

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