Speaker
Description
The Shapley Superlcuster is the most massive gravitationally bound structure in the nearby Universe, consisting of many galaxy clusters and groups at various evolutionary stages of merger activity. Using various SKA pathfinders, we study this prime example of large scale structure formation at unprecedented sensitivities. In particular, we present the findings in our multiwavelendgth study of the Abell 3558 radio ‘halo' with recent MeerKAT 816 MHz and 1283 MHz, ASKAP 887 MHz and uGMRT 400 MHz observations and archival XMM-Newton data. We highlight spatial and spectral features correlating with various X-ray thermodynamic quantities and highlight the interplay between the thermal and non-thermal components of the ICM. We ultimately conclude that the radio emission is in-fact a mini-halo powered and shaped by the turbulence induced by large-scale gas sloshing possibly originating from a previous encounter with the group SC 1327. Furthermore, we present a novel technique of 3GC, primary beam corrected visibility-plane mosaicing using DDFacet and killMS to present a similar study of the ultra-faint intercluster radio bridge between Abell 3562 and SC 1329 and interpret the results in the framework of a minor merger.
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