by Using the LOw Frequency ARray (LOFAR), European astronomers have carried out radio observations of a low-mass galaxy cluster known as PSZ2G145.92-12.53, dubbed the Ant Cluster.
In result, they identified a radio halo—a feature rarely found in low-mass galaxy clusters.
Radio halos are enormous regions of diffuse radio emission, usually found at the centers of massive galaxy clusters.
However, diffuse emissions generally have very low surface brightness, particularly at GHz frequencies, which makes them hard to detect.
Their brightness increases at lower frequencies, unveiling the presence of these regions.
Source
In result, they identified a radio halo—a feature rarely found in low-mass galaxy clusters.
Radio halos are enormous regions of diffuse radio emission, usually found at the centers of massive galaxy clusters.
However, diffuse emissions generally have very low surface brightness, particularly at GHz frequencies, which makes them hard to detect.
Their brightness increases at lower frequencies, unveiling the presence of these regions.
Source
