6 papers · 1 filter
MeerKAT observations of Abell 1775 and Abell 1795: the discovery of a hadronic radio halo?
R. J. van Weeren, E. Osinga, G. Brunetti +13
Giant radio haloes are diffuse synchrotron sources typically found in merging galaxy clusters, while smaller mini-haloes occur in cool-core clusters. Both trace cosmic-ray electron…
Magnetic Fields in the Shapley Supercluster Core with POSSUM: Challenging Model Predictions
D. Alonso-López, S. P. O'Sullivan, A. Bonafede +18
Faraday Rotation Measure (RM) Grids provide a sensitive means to trace magnetized plasma across a wide range of cosmic environments. We study the RM signal from the Shapley Supercl…
Discovery of Diffuse Radio Emission in a Massive z=1.709 Cool Core Cluster: A Candidate Radio Mini-Halo
Julie Hlavacek-Larrondo, Roland Timmerman, Christoph Pfrommer +10
Clusters of galaxies host spectacular diffuse radio sources, extending over scales from 100 kpc to several Mpcs. These sources, with extremely faint surface brightness (Jy/arcs…
The phase-space of tailed radio galaxies in massive clusters
Stefan van der Jagt, Erik Osinga, Reinout J. van Weeren +4
The radio jets of radio galaxies in galaxy clusters are often bent due to the ram pressure of the intracluster medium. In this paper we start with a well-defined sample of galaxy c…
Probing cluster magnetism with embedded and background radio sources in Planck clusters
Erik Osinga, Reinout J. van Weeren, Lawrence Rudnick +6
Magnetic fields remain an enigmatic part of the content of galaxy clusters. Faraday rotation and depolarisation of extragalactic radio sources are useful probes, but the limited av…
Serendipitous decametre detection of ultra steep spectrum radio emission in Abell 655
C. Groeneveld, R. J. van Weeren, A. Botteon +5
Some galaxy clusters contain non-thermal synchrotron emitting plasma permeating the intracluster medium (ICM). The spectral properties of this radio emission are not well character…