Distribution of radio sources towards clusters of galaxies
Abstract
A statistical analysis of the radio sources toward clusters of galaxies is presented. The results show that the sources are highly concentrated towards the cluster centers. The density enhancement of sources within 0.05 Abell radii ranges from 3 to 25 above background, but rises to approx. 100 for high frequency, when only strong sources are considered. The richer (R greater than or equal to 2) clusters and early Bautz-Morgan types (BM less than II) show the highest concentration of sources above background. Often a source deficiency relative to the background is found in the cluster peripheries. The source count shows an excess of strong radio sources towards the cluster centers. In low frequencies, a deficiency of weak sources is found towards clusters of BM less than II morphological types.
- Publication:
-
Masters Thesis
- Pub Date:
- February 1991
- Bibcode:
- 1991MsT.........17A
- Keywords:
-
- Galactic Clusters;
- Spatial Distribution;
- Statistical Analysis;
- Boundaries;
- High Frequencies;
- Low Frequencies;
- Morphology;
- Radii;
- Space Radiation