On the Study of the Substructure of Galaxy Clusters: STree Technique in NonPoint Approximation
Abstract
We represent the further development of Stree technique of the study the structure of clusters of galaxies. The Stree technique developed by Gurzadyan et al enables one to analyse the substructures of clusters via selfconsistent use of 2D positional, 1D kinematical and magnitude information on the galaxies. First, the generalization of the method for the system of Nspheres, i.e. in nonpoint approximation, is performed, and the ways of construction of a new $D$ matrix are given. Second, an efficient algorithm for analyzing of the Stree output information is presented, enabling one to reveal the existence of subgroups and the membership of galaxies in each subgroup.
 Publication:

arXiv eprints
 Pub Date:
 April 1997
 DOI:
 10.48550/arXiv.astroph/9704054
 arXiv:
 arXiv:astroph/9704054
 Bibcode:
 1997astro.ph..4054B
 Keywords:

 Astrophysics
 EPrint:
 LATEX 7 pages, to appear in "Astrofizika"