Studies on the Coma cluster. I - Determination and discussion of membership

Details Studies on the Coma cluster. I - Determination and discussion of membership Studies on the Coma cluster. I - Determination and discussion of membership

Jun 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988acasn..29..359z&link_type=abstract

(Acta Astronomica Sinica, vol. 29, no. 4, 1988, p. 359-365) Chinese Astronomy and Astrophysics (ISSN 0275-1062), vol. 13, June 1

Astronomy and Astrophysics

Astrophysics

4

Galactic Clusters, Maximum Likelihood Estimates, Radial Velocity, Red Shift, Spiral Galaxies, Color-Magnitude Diagram, Mathematical Models, Statistical Analysis

Scientific paper

A statistical method for determining the membership of a galaxy cluster is presented. The method is based on the maximum likely principle and assumes that the radial velocity of a cluster galaxy follows a one-dimensional normal distribution. The method is applied to the Coma cluster, showing that the model may be used to determine the distributional parameters of the cluster and the membership probability of individual galaxies.

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