Title: Deep radio observations of galaxy clusters with MeerKAT

Abstract: Galaxy clusters are the most massive bound and quasi-relaxed objects in the Universe. They represent the building block in the hierarchical structure formation and acquiring mass via merging process with surrounding groups and other clusters. Cluster merging activities trigger many interesting internal processes and could generate ~Mpc size extended diffuse radio sources, broadly, radio haloes and relics. These non-thermal diffuse radio sources are low in their surface brightness (µJy/arcsec^2) and hence difficult to detect with a radio telescope. In this talk, I will present our ongoing various galaxy clusters and supercluster projects with MeerKAT and data analysis. MeerKAT is a second-generation radio telescope and pathfinder of the future Square Kilometer Array (SKA). It comprises 64 small, 13.5 m-diameter dishes operating at L- and UHF-band. MeerKAT is a powerful instrument for wide-area surveys, with high sensitivity over a wide range of angular scales. It is located in the Karoo desert of South Africa. Recently, it has completed one major galaxy cluster survey project - MeerKAT Galaxy Cluster Legacy Survey (MGCLS). MGCLS is a programme of long-track MeerKAT (900–1670 MHz) observations of 115 galaxy clusters, observed for ∼ 6–10 hours each in full polarization. Typical sensitivities for the MGCLS data is 3-5 µJy/beam and resolution is 8". I will also talk about this survey, its findings and future plans.