489 citations · 1k across the 15 of their papers we have counts for
15 papers
Probing Merger Shocks in Galaxy Clusters in the SKA Era
Arpan Pal, Ruta Kale, Gabriella Di Gennaro +8
Galaxy cluster mergers represent the most energetic phenomena in the Universe since the Big Bang releasing gravitational potential energy of erg, injecting turbul…
The Peculiar Mini-Halo in the Shapley Supercluster Member Abell 3558
K. S. Trehaeven, T. Venturi, O. Smirnov +9
We present a multi-band study of the diffuse emission in the galaxy cluster Abell 3558, located in the core of the Shapley Supercluster. Using new MeerKAT UHF-Band and uGMRT Band-3…
A view of the CIZA J2242.8+5301 galaxy cluster at very low radio frequencies
G. Lusetti, M. Brüggen, H. W. Edler +9
The galaxy cluster CIZA J2242.8+5301 is a well-studied merging galaxy cluster that hosts prominent double radio relics including the famous sausage relic, as well as other diffuse…
Cosmic dance in the Shapley Concentration Core II. The uGMRT-MeerKAT view of filaments in the brightest cluster galaxies and tailed radio galaxies in the A3528 cluster complex
G. Di Gennaro, T. Venturi, S. Giacintucci +12
Superclusters are the largest-scale environments where a number of galaxy clusters interact with each other through minor/major mergers and grow via accretion along cosmic filament…
The LOFAR Two-metre Sky Survey -- V. Second data release
T. W. Shimwell, M. J. Hardcastle, C. Tasse +103
In this data release from the LOFAR Two-metre Sky Survey (LoTSS) we present 120-168MHz images covering 27% of the northern sky. Our coverage is split into two regions centred at ap…
The Planck clusters in the LOFAR sky. I. LoTSS-DR2: new detections and sample overview
A. Botteon, T. W. Shimwell, R. Cassano +23
Relativistic electrons and magnetic fields permeate the intra-cluster medium (ICM) and manifest themselves as diffuse sources of synchrotron emission observable at radio wavelength…
On the Polarisation of Radio Relics
Matthias Hoeft, Kamlesh Rajpurohit, Denis Wittor +2
Radio relics are extended radio emission features which trace shock waves in the periphery of galaxy clusters originating from cluster mergers. Some radio relics show a highly pola…
A LOFAR-uGMRT spectral index study of distant radio halos
G. Di Gennaro, R. J. van Weeren, R. Cassano +9
Context. Radio halos are megaparsec-scale diffuse radio sources{ mostly} located at the centres of merging galaxy clusters. The common mechanism invoked to explain their origin is…
LOFAR observations of galaxy clusters in HETDEX
R. J. van Weeren, T. W. Shimwell, A. Botteon +20
Diffuse cluster radio sources, in the form of radio halos and relics, reveal the presence of cosmic rays and magnetic fields in the intracluster medium (ICM). These cosmic rays are…
The great Kite in the sky: a LOFAR observation of the radio source in Abell 2626
A. Ignesti, T. Shimwell, G. Brunetti +15
The radio source at the center of the galaxy cluster Abell 2626, also known as the Kite, stands out for its unique morphology composed of four, symmetric arcs. Previous studies hav…
The beautiful mess in Abell 2255
A. Botteon, G. Brunetti, R. J. van Weeren +18
We present LOFAR observations of one of the most spectacular objects in the radio sky: Abell 2255. This is a nearby () merging galaxy cluster hosting one of the first r…
Revived Fossil Plasma Sources in Galaxy Clusters
S. Mandal, H. T. Intema, R. J. van Weeren +10
It is well established that particle acceleration by shocks and turbulence in the intra-cluster medium can produce cluster-scale synchrotron emitting sources. However, the detailed…
LOFAR discovery of a radio halo in the high-redshift galaxy cluster PSZ2 G099.86+58.45
R. Cassano, A. Botteon, G. Di Gennaro +15
In this Letter, we report the discovery of a radio halo in the high-redshift galaxy cluster PSZ2 G099.86+58.45 () with the LOw Frequency ARray (LOFAR) at 120-168 MHz. This…
Deep Very Large Array observations of the merging cluster CIZA J2242.8+5301: continuum and spectral imaging
G. Di Gennaro, R. J. van Weeren, M. Hoeft +14
Despite progress in understanding radio relics, there are still open questions regarding the underlying particle acceleration mechanisms. In this paper we present deep 1--4 GHz VLA…
Discovery of large-scale diffuse radio emission in low-mass galaxy cluster Abell 1931
M. Brüggen, D. Rafferty, A. Bonafede +12
Extended, steep-spectrum radio synchrotron sources are pre-dominantly found in massive galaxy clusters as opposed to groups. LOFAR Two-Metre Sky Survey images have revealed a diffu…