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An unlikely radio halo in the low X-ray luminosity galaxy cluster RXC J1514.9-1523
Simona Giacintucci, Daniele Dallacasa, Tiziana Venturi +4
We report the discovery of a giant radio halo in the galaxy cluster RXC J1514.9-1523 at z=0.22 with a relatively low X-ray luminosity, $L_{X \, [0.1-2.4 \rm \, kev]} \sim 7 \times…
The connection between radio halos and cluster mergers and the statistical properties of the radio halo population
R. Cassano, G. Brunetti, T. Venturi
We discuss the statistical properties of the radio halo population in galaxy clusters. Radio bi-modality is observed in galaxy clusters: a fraction of clusters host giant radio hal…
An elusive radio halo in the merging cluster Abell 781?
T. Venturi, S. Giacintucci, D. Dallacasa +4
Deep radio observations of the galaxy cluster Abell 781 have been carried out using the Giant Metrewave Radio Telescope at 325 MHz and have been compared to previous 610 MHz observ…
Radio Halos, cluster mergers and the role of future LOFAR observations
Rossella Cassano
A radio bimodality is observed in galaxy clusters: a fraction of clusters host giant radio halos while the majority of clusters do not show evidence of diffuse cluster-scale radio…
GMRT 150 MHz follow up of diffuse steep spectrum radio emission in galaxy clusters
G. Macario, T. Venturi, D. Dallacasa +5
It has been recently found that a few galaxy clusters host diffuse radio halo emission with very steep synchrotron spectra ( > 1.6), which may be classified as Ultra Steep Spect…