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An elusive radio halo in the merging cluster Abell 781?

Venturi, T.; Giacintucci, G.; Dallacasa, D.; Brunetti, G.; Cassano, R.; Macario, G; ATHREYA, RAMANA (Oxford University Press, 2011-01)

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 observations and to archival Very Large Array ...
An unlikely radio halo in the low X-ray luminosity galaxy cluster RXC J1514.9-1523 (Research Note)

Giacintucci, S.; Dallacasa, D.; Venturi, T.; Brunetti, G.; Cassano, R.; Markevitch, M.; ATHREYA, RAMANA (EDP Sciences, 2011-10)

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, LX[0.1−2.4 kev] ~ 7 × 1044 erg s-1. This faint, diffuse radio source is detected with ...
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 ...

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