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