In a growing number of galaxy clusters diffuse extended radio sources have been found.
These sources are not directly associated with individual cluster galaxies. The radio …

Radio observations prove the existence of relativistic particles and magnetic field associated
with the intra-cluster-medium (ICM) through the presence of extended synchrotron emission …

Context. Relativistic electrons and magnetic fields permeate the intra-cluster medium (ICM)
and manifest themselves as diffuse sources of synchrotron emission observable at radio …

Diffuse cluster radio sources, in the form of radio halos and relics, reveal the presence of
cosmic rays and magnetic fields in the intracluster medium (ICM). These cosmic rays are …

Context. Diffuse cluster-scale synchrotron radio emission is discovered in an increasing
number of galaxy clusters in the form of radio haloes, probing the presence of relativistic …

Context. Extended radio sources in the sky require a dense sampling of short baselines to
be properly imaged by interferometers. This problem arises in many areas of radio …

Context. Many galaxy clusters host megaparsec-scale diffuse radio sources called radio
halos. Their origin is tightly connected to the processes that lead to the formation of clusters …

Many galaxy clusters host megaparsec-scale radio halos, generated by ultrarelativistic
electrons in the magnetized intracluster medium. Correlations between the synchrotron …

Context. Turbulence introduced into the intracluster medium (ICM) through cluster-merger
events transfers energy to non-thermal components, and can trigger the formation of diffuse …

We investigate the occurrence of radio minihalos—diffuse radio sources of unknown origin
observed in the cores of some galaxy clusters—in a statistical sample of 58 clusters drawn …