Abstract Details

Name: Shubham Bhagat
Affiliation: Savitribai Phule Pune University
Conference ID: ASI2020_452
Title : Radio study of 1WGAJ0521.0-1333 galaxy cluster using GMRT and VLA
Authors and Co-Authors : Shubham Bhagat, Sameer Salunkhe and Surajit Paul
Abstract Type : Poster
Abstract Category : Extragalactic Astronomy
Abstract : To refine the details of growth of structures and constraining the evolution of large scale structures(LSS) and its energetic it is very important to understand the process of formation and evolution of galaxy clusters and groups. Transient phenomenon like mergers creates and accretion releases huge amount of binding energy in the intracluster medium(ICM) that dissipates through shock heating and creating turbulence. Such shocks and turbulence accelerate and re-accelerate particles as well as amplifies the cosmic magnetic fields. When these charged particles gyrate in the ambient magnetic fields, gives rise to extended radio synchrotron emission in the form of radio relic or halo depending on there formation mechanism. Detection of these objects will help us in understanding structural hierarchy much better. We have detected the radio emissions using GMRT-325MHz and VLA at L-band in the field of MACSJ0520.7-1328 which coincides with the galaxy cluster 1WGAJ0521.0-1333 cluster. The emission could be radio halo or radio relic or tail of radio galaxy. The position of emission and spectral index study suggest that the diffused radio emission could be either radio halo or revived AGN fossil. Further, calculation for magnetic field and radio flux has been reported.