Diffuse radio emission from galaxy clusters

RJ Van Weeren, F de Gasperin, H Akamatsu… - Space Science …, 2019‏ - Springer
In a growing number of galaxy clusters diffuse extended radio sources have been found.
These sources are not directly associated with individual cluster galaxies. The radio …

[HTML][HTML] The gamma-ray window to intergalactic magnetism

R Alves Batista, A Saveliev - Universe, 2021‏ - mdpi.com
One of the most promising ways to probe intergalactic magnetic fields (IGMFs) is through
gamma rays produced in electromagnetic cascades initiated by high-energy gamma rays or …

First results from the IllustrisTNG simulations: radio haloes and magnetic fields

F Marinacci, M Vogelsberger, R Pakmor… - Monthly Notices of …, 2018‏ - academic.oup.com
We introduce the IllustrisTNG project, a new suite of cosmological magnetohydrodynamical
simulations performed with the moving-mesh code arepo employing an updated Illustris …

A radio ridge connecting two galaxy clusters in a filament of the cosmic web

F Govoni, E Orrù, A Bonafede, M Iacobelli, R Paladino… - Science, 2019‏ - science.org
Galaxy clusters are the most massive gravitationally bound structures in the Universe. They
grow by accreting smaller structures in a merging process that produces shocks and …

The Coma cluster at LOFAR frequencies. II. The halo, relic, and a new accretion relic

A Bonafede, G Brunetti, L Rudnick… - The Astrophysical …, 2022‏ - iopscience.iop.org
Abstract 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 …

Magnetic fields and relativistic electrons fill entire galaxy cluster

A Botteon, RJ van Weeren, G Brunetti, F Vazza… - Science …, 2022‏ - science.org
The hot plasma within merging galaxy clusters is predicted to be filled with shocks and
turbulence that may convert part of their kinetic energy into relativistic electrons and …

Magnetic field amplification in galaxy clusters and its simulation

J Donnert, F Vazza, M Brüggen, J ZuHone - Space Science Reviews, 2018‏ - Springer
We review the present theoretical and numerical understanding of magnetic field
amplification in cosmic large-scale structure, on length scales of galaxy clusters and beyond …

Gauge-field production during axion inflation in the gradient expansion formalism

EV Gorbar, K Schmitz, OO Sobol, SI Vilchinskii - Physical Review D, 2021‏ - APS
We study the explosive production of gauge fields during axion inflation in a novel gradient
expansion formalism that describes the time evolution of a set of bilinear electromagnetic …

Intracluster magnetic filaments and an encounter with a radio jet

L Rudnick, M Brüggen, G Brunetti… - The Astrophysical …, 2022‏ - iopscience.iop.org
Thin synchrotron-emitting filaments are increasingly seen in the intracluster medium (ICM).
We present the first example of a direct interaction between a magnetic filament, a radio jet …

Second-order fermi reacceleration mechanisms and large-scale synchrotron radio emission in intracluster bridges

G Brunetti, F Vazza - Physical Review Letters, 2020‏ - APS
Radio observations at low frequencies with the low frequency array (LOFAR) start
discovering gigantic radio bridges connecting pairs of massive galaxy clusters. These …