Dynamical study of the cluster of galaxies Abell 194 by the multi mass model

Details Dynamical study of the cluster of galaxies Abell 194 by the multi mass model Dynamical study of the cluster of galaxies Abell 194 by the multi mass model

Jul 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980a%26a....87..132c&link_type=abstract

Astronomy and Astrophysics, vol. 87, no. 1-2, July 1980, p. 132-135. Research supported by the Conselho Nacional de Desenvolvim

Astronomy and Astrophysics

Astrophysics

4

Astronomical Models, Galactic Clusters, Luminous Intensity, Mass Ratios, Mass Spectra, Velocity Distribution, Astronomical Photometry, Density Distribution, Equipartition Theorem, Mass Distribution, Missing Mass (Astrophysics)

Scientific paper

Application of the multi mass model with complete equipartition to a dynamical analysis of the A 194 cluster of galaxies leads to the fitting of the density profile and luminosity function. In addition, the model predicts a velocity dispersion increasing with the distance from the center, and a new estimate is made of the total mass of 3 x 10 to the 14th solar masses. The dynamical mass corresponding to the complete sample of galaxies used herein yields a mass to light ratio of 62 plus or minus 15, showing that the missing mass problem probably does not arise for A 194.

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