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  • The very steep spectrum radio halo in Abell 697 
    Macario, G.; Venturi, T.; Brunetti, G.; Dallacasa, D.; Giacintucci, S.; Cassano, R.; Bardelli, S.; ATHREYA, RAMANA (EDP Sciences, 2010-07)
    Aims. We present a detailed study of the giant radio halo in the galaxy cluster Abell 697 to constrain its origin and connection with the cluster dynamics. Methods. We performed high sensitivity GMRT observations at 325 ...
  • 153 MHz GMRT follow-up of steep-spectrum diffuse emission in galaxy clusters 
    Macario, G.; Venturi, T.; Intema, H. T.; Dallacasa, D.; Brunetti, G.; Cassano, R.; Giacintucci, S.; Ferrari, C.; Ishwara-Chandra, C. H.; ATHREYA, RAMANA (EDP Sciences, 2013-03)
    Aims. We present new high-sensitivity 153 MHz Giant Meterwave Radio Telescope follow-up observations of the diffuse steep-spectrum cluster radio sources in the galaxy clusters Abell 521, Abell 697, and Abell 1682. Abell 521 ...
  • The Extended GMRT Radio Halo Survey I. New upper limits on radio halos and mini-halos 
    Kale, R.; Venturi, T.; Giacintucci, S.; Dallacasa, D.; Cassano, R.; Brunetti, G.; Macario, G.; ATHREYA, RAMANA (EDP Sciences, 2013-09)
    Context. A fraction of galaxy clusters host diffuse radio sources called radio halos, radio relics and mini-halos. These are associated with the relativistic electrons and magnetic fields present on similar to Mpc scales ...
  • The Extended GMRT Radio Halo Survey II. Further results and analysis of the full sample 
    Kale, R.; Venturi, T.; Giacintucci, S.; Dallacasa, D.; Cassano, R.; Brunetti, G.; Cuciti, V.; Macario, G.; ATHREYA, RAMANA (EDP Sciences, 2015-07)
    The intra-cluster medium contains cosmic rays and magnetic fields that are manifested through the large scale synchrotron sources, termed radio haloes, relics, and mini-haloes. The Extended Giant Metrewave Radio Telescope ...

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