Substructure in the Coma Cluster

Details Substructure in the Coma Cluster Substructure in the Coma Cluster

Jun 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...317..653f&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 317, June 15, 1987, p. 653-667.

Astronomy and Astrophysics

Astrophysics

146

Dynamic Models, Galactic Clusters, Line Of Sight, Statistical Distributions, Velocity Distribution, Astronomical Models, Dark Matter, Maximum Likelihood Estimates

Scientific paper

The existence of substructure in the central region of the Coma Cluster is shown by the use of a new statistical method based on maximum likelihood. This method enables the galaxies to be split into two groups on the basis of their positions and line-of-sight velocities. Dynamical models of the system are constructed and discussed. This analysis shows that the galaxies in the central region of the Coma Cluster have not yet relaxed to an equilibrium distribution.

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