The low-frequency radio emission in galaxy clusters
Abstract
Larger scale structures in the Universe are formed by massive Galaxy clusters that grow via mergers of smaller clusters and galaxy groups. Multiple frequency radio emissions arising from such massive clusters were investigated in this work, in order to study the nature of low frequency non-thermal emission that are generated within their ongoing merger events. To probe further, the non-thermal and thermal components of the intra cluster medium and their interaction during cluster collisions, Chandra X-ray data was used. GMRT data presented on 5 massive clusters in this paper reveals the presence of diffuse radio structures in the form of halos, relics and mini-halos in these systems. Furthermore, we discuss the statistical properties of radio power at 1.4 GHz and X-ray luminosity in galaxy clusters and highlight the importance of contribution from LOFAR and SKA in this field.
- Publication:
-
Astronomical Society of India Conference Series
- Pub Date:
- 2014
- Bibcode:
- 2014ASInC..13..207P