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Title:
Statistical simulations of clusters of galaxies
Authors:
Avni, Y.; Bahcall, N. A.
Affiliation:
AA(Weizmann Institute of Science, Rehovot, Israel; Institute for Advanced Study, Princeton, N.J.), AB(Princeton University, New Observatory, Princeton, N.J.; Weizmann Institute of Science, Rehovot, Israel)
Publication:
Astrophysical Journal, vol. 209, Oct. 1, 1976, pt. 1, p. 16-21 (ApJ Homepage)
Publication Date:
10/1976
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
ASTRONOMICAL MODELS, GALACTIC CLUSTERS, STATISTICAL MECHANICS, DENSITY DISTRIBUTION, DISTRIBUTION FUNCTIONS, ERROR ANALYSIS, MONTE CARLO METHOD
Comment:
A&AA ID. AAA018.160.016
DOI:
10.1086/154688
Bibliographic Code:
1976ApJ...209...16A

Abstract

By comparing observed and simulated rich clusters of galaxies, it is shown that the observed clusters actually possess physical cores. The accuracy with which core radii can be determined is found. It is also shown that the observations of density profiles of galaxies in the clusters give no significant evidence for a dynamical reason as the cause of the anomalously close resemblance found previously between such density profiles and the isothermal gas distribution.

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