The Expansion of Clusters of Galaxies

Abstract

The possibility of the expansion of clusters of galaxies has been considered from two points of view. First, if one assumes that the redshift of galaxies reflects velocity of recession, the question arises: do the members of clusters of galaxies participate in the general expansion indicated by the law of redshifts, with the clusters themselves expanding? In a study of this problem, Neyman and Scott [1] developed a statistical kinematic test of the stability of systems of galaxies. In 1953 the test was applied to the twelve galaxies in the Coma Cluster for which the necessary data (radial velocities and magnitudes) were available. There was no indication of expansion.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1961
Accession Number
AD1028130

Entities

People

  • E. L. Scott
  • J. L. Lovasich
  • J. Neyman
  • N. U. Mayall

Organizations

  • University of California, Berkeley

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Absorption
  • Absorption Coefficients
  • Brightness
  • California
  • Celestial Brightness
  • Coefficients
  • Computations
  • Covariance
  • Dispersions
  • Measurement
  • Observation
  • Observers
  • Probability
  • Radial Velocity
  • Random Variables
  • Spatial Distribution
  • Statistics

Fields of Study

  • Physics

Readers

  • Astronomy/Astrophysics
  • Statistical inference.
  • Theoretical Analysis.