Shear flows are ubiquitously present in space and astrophysical plasmas. This paper
highlights the central idea of the non-thermal acceleration of charged particles in shearing …

Magnetic reconnection in strongly magnetized astrophysical plasma environments is
believed to be the primary process for fast energy release and particle energization …

Among the various acceleration mechanisms which have been suggested as responsible for
the nonthermal particle spectra and associated radiation observed in many astrophysical …

We describe a new hybrid framework to model non-thermal spectral signatures from highly
energetic particles embedded in a large-scale classical or relativistic magnetohydrodynamic …

A Chapman-Kolmogorov equation description of compound transport of cosmic rays due to
random walk of the magnetic field lines, and for a range of models for particle transport …

We perform Monte Carlo simulations of transrelativistic shear acceleration dedicated to a jet-
cocoon system of active galactic nuclei. A certain fraction of galactic cosmic rays in a halo is …

We consider the acceleration of energetic particles by a velocity shear in the relativistic
background flow containing scattering centers. Three possible acceleration sites for …

We have simulated the evolution of non-thermal cosmic ray electrons (CREs) in 3D
relativistic magneto hydrodynamic (MHD) jets evolved up to a height of 9 kpc. The CREs …

Nonthermal acceleration of particles in magnetohydrodynamic (MHD) turbulence plays a
central role in a wide variety of astrophysical sites. This physics is addressed here in the …

We develop a comprehensive theoretical model of relativistic collisionless pair shocks
mediated by the current filamentation instability. We notably characterize the noninertial …