80 citations · 785 across the 42 of their papers we have counts for
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Investigating the magnetic field in the inter-cluster filament between Abell 3667 and Abell 3651 with POSSUM
C. Stuardi, S. P. O'Sullivan, L. Rudnick +19
[Abridged abstract] The objective of this study is to measure the magnetic field within the prominent inter-cluster filament recently detected in X-rays by the extended ROentgen Su…
The plethora of diffuse emission in Abell 2034 as revealed by MeerKAT polarization observations
A. Bonafede, M. Balboni, G. W. Pratt +15
We present MeerKAT observations of the galaxy cluster Abell 2034, a massive (M_500=5.21 10^14 solar masses) nearby cluster in a merging state. Previous observations at 144 MHz have…
The Impact of Dense RM Grids on the Study of Intra-cluster and Intra-group Magnetic Fields
Francesca Loi, Valentina Vacca, Shane P. O'Sullivan +8
The presence of diffuse radio sources in galaxy clusters and the recent discovery of polarized signals associated with the tails of a jellyfish galaxy indicates that intra-cluster/…
Magnetic fields at the dawn of structure formation I. The CARLA J1510+5958 proto-cluster
A. Pagliotta, A. Bonafede, C. Stuardi +4
Magnetic fields are a fundamental ingredient of the Universe, influencing the formation and evolution of cosmic structures. While magnetic fields in local galaxy clusters have been…
Galaxy clusters in the LoTSS-DR3: Catalogues and detection pipeline for diffuse radio emission
C. Stuardi, G. Di Gennaro, A. Botteon +19
The third data release of the LOFAR Two-metre Sky Survey provides an unprecedented view of the northern sky at 144 MHz. While compact sources can be efficiently identified with aut…
Magnetic Fields in the Shapley Supercluster Core with POSSUM: Challenging Model Predictions
D. Alonso-López, S. P. O'Sullivan, A. Bonafede +18
Faraday Rotation Measure (RM) Grids provide a sensitive means to trace magnetized plasma across a wide range of cosmic environments. We study the RM signal from the Shapley Supercl…
Simulated Rotation Measure Sky from Primordial Magnetic Fields
Salome Mtchedlidze, Franco Vazza, Xiaolong Du +3
Primordial Magnetic Fields (PMFs) -- magnetic fields originating in the early Universe and permeating the cosmological scales today -- can explain the observed microGauss-level mag…
Constraining the magnetic field in the galaxy cluster Abell 2142 using MeerKAT L-band polarisation data
A. Pagliotta, C. J. Riseley, A. Bonafede +2
Magnetic fields permeate the Universe, including galaxy clusters, and affect the thermodynamical properties of the intra-cluster medium (ICM). Cosmological simulations predict that…
Radio emission from a massive node of the cosmic web. A discovery powered by machine learning
C. Stuardi, A. Botteon, M. Sereno +4
Aims. We aim to understand the nature of the diffuse radio emission surrounding the massive galaxy cluster PSZ2 G083.29-31.03, at z=0.412, already known to host a radio halo. Our i…
Magnetic fields in the outskirts of PSZ2 G096.88+24.18 from depolarization analysis of radio relics
E. De Rubeis, C. Stuardi, A. Bonafede +4
In this paper, we investigate the polarization properties of the double radio relics in PSZ2 G096.88+24.18 using the rotation measure synthesis, and try to constrain the characteri…
Shock imprints on the radio mini halo in RBS797
A. Bonafede, M. Gitti, N. La Bella +11
In this work, we analysed new LOw Frequency ARray observations of the mini halo in the cluster RBS797, together with archival Very Large Array observations and the recent Chandra r…
Synchrotron Intensity Gradient Revealing Magnetic Fields in Galaxy Clusters
Yue Hu, C. Stuardi, A. Lazarian +3
Magnetic fields and their dynamical interplay with matter in galaxy clusters contribute to the physical properties and evolution of the intracluster medium. However, the current un…
A 600 kpc complex radio source at the center of Abell 3718 discovered by the EMU and POSSUM surveys
F. Loi, M. Brienza, C. J. Riseley +10
Multifrequency studies of galaxy clusters are crucial for inferring their dynamical states and physics. Moreover, these studies allow us to investigate cluster-embedded sources, wh…
Using the polarization properties of double radio relics to probe the turbulent compression scenario
C. Stuardi, A. Bonafede, K. Rajpurohit +5
Radio relics are Mpc-size synchrotron sources located in the outskirts of some merging galaxy clusters. Binary-merging systems with favorable orientation may host two almost symmet…
Magnetic field strength in cosmic web filaments
E. Carretti, V. Vacca, S. P. O'Sullivan +8
We used the Rotation Measure (RM) catalogue derived from the LOFAR Two-metre Sky Survey Data Release 2 (LoTSS DR2) at 144-MHz to measure the evolution with redshift of the extragal…
Magnetogenesis and the Cosmic Web: a joint challenge for radio observations and numerical simulations
Franco Vazza, Nicola Locatelli, Kamlesh Rajpurohit +16
The detection of the radio signal from filaments in the cosmic web is crucial to distinguish possible magnetogenesis scenarios. We review the status of the different attempts to de…
Deep low-frequency radio observations of Abell 2256 I: The filamentary radio relic
K. Rajpurohit, R. J. van Weeren, M. Hoeft +22
We present deep and high fidelity images of the merging galaxy cluster Abell 2256 at low frequencies, using the upgraded Giant Metrewave Radio Telescope (uGMRT) and LOw-Frequency A…
Deep Chandra observations of merging galaxy cluster ZwCl 2341+0000
X. Zhang, A. Simionescu, C. Stuardi +9
Knowledge of X-ray shock and radio relic connection in merging galaxy clusters has been greatly extended in terms of both observation and theory over the last decade. ZwCl 2341+000…
The Coma cluster at LOFAR frequencies I: insights into particle acceleration mechanisms in the radio bridge
A. Bonafede, G. Brunetti, F. Vazza +18
Radio synchrotron emission from the bridges of low-density gas connecting galaxy clusters and groups is a challenge for particle acceleration processes. In this work, we analyse th…
New constraints on the magnetization of the cosmic web using LOFAR Faraday rotation observations
S. P. O'Sullivan, M. Brüggen, F. Vazza +11
Measuring the properties of extragalactic magnetic fields through the effect of Faraday rotation provides a means to understand the origin and evolution of cosmic magnetism. Here w…
Particle re-acceleration and Faraday-complex structures in the RXC J1314.4-2515 galaxy cluster
C. Stuardi, A. Bonafede, D. Wittor +9
Radio relics are sites of electron (re)acceleration in merging galaxy clusters but the mechanism of acceleration and the topology of the magnetic field in and near relics are yet t…