NDLI: Study of the Structure of the Coma Cluster Based on a Hierarchical Force Clustering Method

Content Provider	Springer Nature Link
Author	Kogoshvili, N. G. Borchkhadze, T. M. Kalloghlian, A. T.
Copyright Year	2005
Abstract	Six subclusters in the Coma cluster have been selected on the basis of a hierarchical clustering method that takes the gravitational interaction among galaxies into account. Of these, 3 central subclusters around the galaxies NGC 4889, NGC 4874, and NGC 4839 have been singled out. We have used the objective statistical criterion applied by Vennik and Anosova in studies of close groups of galaxies to evaluate each member included in a subcluster with a high probability. Galaxies with a significant deficit of hydrogen HI, including objects from the Bravo-Alfaro list, have been identified with members of the subclusters, with the greatest number of them in the subclusters around NGC 4874 and NGC 4839. A quantitative estimate of the hydrogen deficit using the HI index in the RCG3 catalog reveals a statistically significant excess value for those galaxies that are members of the subclusters compared to galaxies with a hydrogen deficit in the overall Coma cluster field. A substantial number of the spiral galaxies with a hydrogen deficit in the subclusters turned out to be radio galaxies as well.
Starting Page	433
Ending Page	444
Page Count	12
File Format	PDF
ISSN	05717256
Journal	Astrophysics
Volume Number	48
Issue Number	4
e-ISSN	15738191
Language	English
Publisher	Kluwer Academic Publishers-Consultants Bureau
Publisher Date	2005-01-01
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Galaxies: clusters galaxies: structure individual: Coma Astronomy, Astrophysics and Cosmology Astronomy Extraterrestrial Physics, Space Sciences Astrophysics
Content Type	Text
Resource Type	Article
Subject	Astronomy and Astrophysics

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