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 …

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 …

ABSTRACT LOFAR, the Low-Frequency Array, is a powerful new radio telescope operating
between 10 and 240 MHz. LOFAR allows detailed sensitive high-resolution studies of the …

Large surveys of galaxy clusters with the Hubble Space Telescope (HST) and Spitzer,
including the Cluster Lensing And Supernova survey with Hubble and the Frontier Fields …

Context. Radio relics in galaxy clusters are giant diffuse synchrotron sources powered in
cluster outskirts by merger shocks. Although the relic–shock connection has been …

We present deep LOFAR observations between 120 and 181 MHz of the" Toothbrush"(RX
J0603. 3+ 4214), a cluster that contains one of the brightest radio relic sources known. Our …

We present the first deep low frequency radio observations of the massive and highly
disturbed galaxy cluster Abell 2744 using the upgraded Giant Metrewave Radio Telescope …

Context. Radio relics are diffuse extended synchrotron sources that originate from shock
fronts induced by galaxy cluster mergers. The particle acceleration mechanism at the shock …

We report L-band VLA observations of 1RXS J0603. 3+ 4214, a cluster that hosts a bright
radio relic, known as the Toothbrush, and an elongated giant radio halo. These new …