654 citations · 9.5k across the 164 of their papers we have counts for
15 papers · 1 filter
A deep study of A399-401: An application for wide-field facet calibration
J. M. G. H. J. de Jong, R. J. van Weeren, A. Botteon +6
We examine the particle acceleration mechanism in the Mpc-scale bridge between Abell 399 and Abell 401 and assess in particular if the synchrotron emission originates from first-or…
The Coma cluster at LOFAR frequencies II: the halo, relic, and a new accretion relic
A. Bonafede, G. Brunetti, L. Rudnick +26
We present LOw Frequency ARray observations of the Coma cluster field at 144\,MHz. The cluster hosts one of the most famous radio halos, a relic, and a low surface-brightness bridg…
A 3.5 Mpc-long radio relic in the galaxy cluster ClG 0217+70
D. N. Hoang, X. Zhang, C. Stuardi +14
Mega-parsec scale radio sources in the form of halos and relics are often detected in dynamically disturbed galaxy clusters. Although they are associated with merger-induced turbul…
Diffuse Radio Emission from Galaxy Clusters in the LOFAR Two-metre Sky Survey Deep Fields
E. Osinga, R. J. van Weeren, J. Boxelaar +15
Low-frequency radio observations are revealing an increasing number of diffuse synchrotron sources from galaxy clusters, dominantly in the form of radio halos or radio relics. The…
LOFAR Detection of a Low-Power Radio Halo in the Galaxy Cluster Abell 990
N. D. Hoang, T. W. Shimwell, E. Osinga +10
Radio halos are extended (), steep-spectrum sources found in the central region of dynamically disturbed clusters of galaxies. Only a handful of radio halos have bee…
Expanding the sample of radio minihalos in galaxy clusters
Simona Giacintucci, Maxim Markevitch, Rossella Cassano +4
Radio minihalos are diffuse synchrotron sources of unknown origin found in the cool cores of some galaxy clusters. We use GMRT and VLA data to expand the sample of minihalos by rep…
Radio observations of the merging galaxy cluster Abell 520
D. N. Hoang, T. W. Shimwell, R. J. van Weeren +13
We examine the possible acceleration mechanisms of the relativistic particles responsible for the extended radio emission in Abell 520. We used new LOFAR 145 MHz, archival GMRT 323…
Characterizing the radio emission from the binary galaxy cluster merger Abell 2146
D. N. Hoang, T. W. Shimwell, R. J. van Weeren +8
Collisions of galaxy clusters generate shocks and turbulence in the intra-cluster medium (ICM). The presence of relativistic particles and magnetic fields is inferred through the d…
SKA-Athena Synergy White Paper
R. Cassano, R. Fender, C. Ferrari +35
The Advanced Telescope for High Energy Astrophysics (Athena) is the X-ray observatory large mission selected by the European Space Agency (ESA), within its Cosmic Vision 2015-2025…
Radio observations of the double-relic galaxy cluster Abell 1240
D. N. Hoang, T. W. Shimwell, R. J. van Weeren +16
We present LOFAR MHz images of the merging galaxy cluster Abell 1240 that hosts double radio relics. In combination with the GMRT MHz and VLA GHz data, we…
Occurrence of radio minihalos in a mass-limited sample of galaxy clusters
Simona Giacintucci, Maxim Markevitch, Rossella Cassano +3
We investigate the occurrence of radio minihalos --- diffuse radio sources of unknown origin observed in the cores of some galaxy clusters --- in a statistical sample of 58 cluster…
A plethora of diffuse steep spectrum radio sources in Abell 2034 revealed by LOFAR
T. W. Shimwell, J. Luckin, M. Brüggen +28
With Low-Frequency Array (LOFAR) observations, we have discovered a diverse assembly of steep spectrum emission that is apparently associated with the intra cluster medium (ICM) of…
LOFAR, VLA, and Chandra observations of the Toothbrush galaxy cluster
R. J. van Weeren, G. Brunetti, M. Brüggen +39
We present deep LOFAR observations between 120-181 MHz of the "Toothbrush" (RX J0603.3+4214), a cluster that contains one of the brightest radio relic sources known. Our LOFAR obse…
A radio minihalo in the extreme cool-core galaxy cluster RXCJ1504.1-0248
S. Giacintucci, M. Markevitch, G. Brunetti +2
Aims. We report the discovery of a radio minihalo in RXCJ1504.1-0248, a massive galaxy cluster that has an extremely luminous cool core. To date, only 9 radio minihalos are known,…
High energy emission from galaxy clusters and particle acceleration due to MHD turbulence
G. Brunetti, P. Blasi, R. Cassano +1
In the next years the FERMI gamma ray telescope and the Cherenkov telescopes will put very stringent constraints to models of gamma ray emission from galaxy clusters providing cruc…