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7 papers
Dying Radio Galaxies In Clusters
M. Murgia, P. Parma, H. R. de Ruiter +2
We report the recent discovery of three `dying' radio galaxies belonging to the WENSS minisurvey sample: WNB1734+6407, WNB1829+6911 and WNB1851+5707. These sources have been select…
Magnetic Fields in Galaxy Clusters
Federica Govoni, Matteo Murgia
Magnetic fields in galaxy clusters can be investigated using a variety of techniques. Recent studies including radio halos, Inverse Compton hard X-ray emissions and Faraday rotatio…
Magnetic Fields in Clusters of Galaxies Obtained Through the Study of Faraday Rotation Measures
F. Govoni, L. Feretti, M. Murgia +3
We are developing a new approach to investigate cluster magnetic field strengths and structures. It is based on the comparison of simulated Rotation Measure and radio halo images,…
Non thermal emission from galaxy clusters: radio halos
L. Feretti, G. Brunetti, G. Giovannini +2
The number of diffuse radio halos in clusters of galaxies has grown in recent years, making it possible to derive statistical properties of these sources and of the hosting cluster…
Radio Halos and Relics in Clusters of Galaxies and Detection Statistics
Gabriele Giovannini, Luigina Feretti, Federica Govoni
New sensitive VLA observations confirm the existence of halo and relic sources in 6 Abell clusters where a diffuse emission was found in the NVSS. We find evidence that the frequen…
The optical properties of low redshift radio galaxies
F. Govoni, R. Falomo, G. Fasano +1
We present morphological and photometric properties of 79 low redshift (z<0.12) radio galaxies extracted from two radio flux limited samples of radio sources. All objects are image…