Dynamical study of the cluster of galaxies Abell 194 by the multi mass model
Abstract
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.
 Publication:

Astronomy and Astrophysics
 Pub Date:
 July 1980
 Bibcode:
 1980A&A....87..132C
 Keywords:

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