Discovery of a Radio Halo (and Relic) in a M <sub>500</sub> < 2 × 10<sup>14</sup> M <sub>⊙</sub> Cluster
Discovery of a Radio Halo (and Relic) in a M <sub>500</sub> < 2 × 10<sup>14</sup> M <sub>⊙</sub> Cluster
Abstract Radio halos are diffuse synchrotron sources observed in dynamically unrelaxed galaxy clusters. Current observations and models suggest that halos trace turbulent regions in the intracluster medium where mildly relativistic particles are reaccelerated during cluster mergers. Due to the higher luminosities and detection rates with increasing cluster mass, radio halos …