Understand
Galaxy clusters have been found to host a range of diffuse, non-thermal emission components, generally with steep, power law spectra.
- In this work we report on the detection and follow-up of radio halos, relics, remnant radio galaxies, and other fossil radio plasmas in Southern Sky galaxy clusters using the Murchison Widefield Array and the Australian Square Kilometre Array Pathfinder.
- We make use of the frequency coverage between the two radio interferometers - from 88 to $\sim 900$ MHz - to characterise the integrated spectra of these sources within this frequency range.
- Highlights from the sample include the detection of a double relic system in Abell 3186, a mini-halo in RXC J0137.2-0912, a candidate halo and relic in Abell 3399, and a complex multi-episodic head-tail radio galaxy in Abell 3164.