Substructure of the core of the perseus supercluster of galaxies |
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| Authors: | A A Melkonian E G Nikogosian |
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| Institution: | (1) Erevan Physics Institute, Armenia;(2) Byurakan Astrophysical Observatory, Armenia |
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| Abstract: | The hierarchical substructure of the core of the Perseus cluster of galaxies (A426, A262, A347, N507, and N383) is investigated
using the method of S-tree diagrams. In the main system M (100 galaxies), two substructures AM (35 galaxies) and BM (13 galaxies)
are determined. The group AM can be identified with the cluster A262 and the group N507; BM can be identified with the group
N383; A426 and A347 are in the main system. The axis of symmetry of the system M passes through the Seyfert galaxy N1275 and
is parallel to the axis of symmetry of the group AM, which is the core of increased density of the cluster of galaxies. Radial
segregation of galaxies by morphological types is observed in the systems M and AM. The distribution of galaxies by position
angles is uniform.
Translated from Astrofizika, Vol. 41, No. 1, pp. 65–72, January-March, 1998. |
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