654 citations · 9.5k across the 164 of their papers we have counts for
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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…
LOFAR high-band antenna observations of the Perseus cluster
R. J. van Weeren, R. Timmerman, V. Vaidya +13
The Perseus cluster is the brightest X-ray cluster in the sky and is known as a cool-core galaxy cluster. Being a very nearby cluster, it has been extensively studied. This has pro…
The radio halo in PLCKESZ G171.94 40.65: Beacon of merging activity
Ramananda Santra, Ruta Kale, Simona Giacintucci +6
We present the first multi-frequency analysis of the candidate ultra-steep spectrum radio halo in the galaxy cluster PLCKESZ G171.9440.65, using the upgraded Giant Metrewave Rad…
Mind the Gap between A2061 and A2067: Unveiling new diffuse large-scale radio emission
G. V. Pignataro, A. Bonafede, G. Bernardi +11
The clusters Abell 2061 and Abell 2067 in the Corona Borealis supercluster have been studied at different radio frequencies and are both known to host diffuse radio emission. The a…
Ultra-low frequency LOFAR spectral indices of cluster radio halos
T. Pasini, F. de Gasperin, M. Brüggen +11
A fraction of galaxy clusters harbor diffuse radio sources known as radio halos. The currently adopted scenario for their formation is based on second-order Fermi re-acceleration o…
Abell 0399-Abell 0401 radio bridge spectral index: the first multifrequency detection
G. V. Pignataro, A. Bonafede, G. Bernardi +12
Recent low-frequency radio observations at 140 MHz discovered a 3 Mpc-long bridge of diffuse emission connecting the galaxy clusters Abell 0399 and Abell 0401. We present follow-up…