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 …

Magnetic reconnection, topological changes in magnetic fields, is a fundamental process in
magnetized plasmas. It is associated with energy release in regions of magnetic field …

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 …

These lecture notes are based on a tutorial given in 2017 at a plasma physics winter school
in Les Houches. Their aim is to provide a self-contained graduate-student level introduction …

Radio observations at low frequencies with the low frequency array (LOFAR) start
discovering gigantic radio bridges connecting pairs of massive galaxy clusters. These …

Faraday rotation and synchrotron emission from extragalactic radio sources give evidence
for the presence of magnetic fields extending over∼ Mpc scales. However, the origin of …

Turbulence is ubiquitous in the insterstellar medium and plays a major role in several
processes such as the formation of dense structures and stars, the stability of molecular …

In this paper, we investigate a situation where relativistic particles are reaccelerated
diffusing across regions of reconnection and magnetic dynamo in super-Alfvenic …

Abstract The Fermi-LAT (Large Area Telescope) collaboration recently published deep
upper limits to the gamma-ray emission of the Coma cluster, a cluster hosting the prototype …

Pressure anisotropy can strongly influence the dynamics of weakly collisional, high-beta
plasmas, but its effects are missed by standard magnetohydrodynamics (MHD). Small …