[HTML][HTML] An introduction to particle acceleration in shearing flows

FM Rieger - Galaxies, 2019 - mdpi.com
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 …

Reconnection-driven particle acceleration in relativistic shear flows

L Sironi, ME Rowan, R Narayan - The Astrophysical Journal …, 2021 - iopscience.iop.org
Particle energization in shear flows is invoked to explain nonthermal emission from the
boundaries of relativistic astrophysical jets. Yet the physics of particle injection, ie, the …

Spontaneous magnetization of collisionless plasma

M Zhou, V Zhdankin, MW Kunz, NF Loureiro… - Proceedings of the …, 2022 - pnas.org
We study within a fully kinetic framework the generation of “seed” magnetic fields through
the Weibel instability, driven in an initially unmagnetized plasma by a large-scale shear …

CHAOS: An octree-based PIC-DSMC code for modeling of electron kinetic properties in a plasma plume using MPI-CUDA parallelization

R Jambunathan, DA Levin - Journal of computational physics, 2018 - Elsevier
A new computational framework for a coupled PIC-DSMC tool using multiple GPUs to model
the kinetic behavior of electrons in plasma plumes is presented in this work. The disparate …

Particle acceleration in mildly relativistic shearing flows: the interplay of systematic and stochastic effects, and the origin of the extended high-energy emission in AGN …

RY Liu, FM Rieger, FA Aharonian - The Astrophysical Journal, 2017 - iopscience.iop.org
The origin of the extended X-ray emission in the large-scale jets of active galactic nuclei
(AGNs) poses challenges to conventional models of acceleration and emission. Although …

Particle diffusion and acceleration in magnetorotational instability turbulence

X Sun, XN Bai - Monthly Notices of the Royal Astronomical …, 2021 - academic.oup.com
Hot accretion flows contain collisionless plasmas that are believed to be capable of
accelerating particles to very high energies, as a result of turbulence generated by the …

Evolution of global relativistic jets: collimations and expansion with kKHI and the Weibel instability

KI Nishikawa, JT Frederiksen, Å Nordlund… - The Astrophysical …, 2016 - iopscience.iop.org
EVOLUTION OF GLOBAL RELATIVISTIC JETS: COLLIMATIONS AND EXPANSION WITH
kKHI AND THE WEIBEL INSTABILITY - IOPscience Skip to content IOP Science home …

Collisional behaviors of astrophysical collisionless plasmas

A Bret - Journal of Plasma Physics, 2015 - cambridge.org
In collisional fluids, a number of key processes rely on the frequency of binary collisions.
Collisions seem necessary to generate a shock wave when two fluids collide fast enough, to …

Wave instabilities and unidirectional light flow in a cavity with rotating walls

S Lannebere, MG Silveirinha - Physical Review A, 2016 - APS
We investigate the conditions for the emergence of wave instabilities in a vacuum cavity
delimited by cylindrical metallic walls under rotation. It is shown that for a small vacuum gap …

Electromagnetic wave transparency of X mode in strongly magnetized plasma

D Mandal, A Vashistha, A Das - Scientific Reports, 2021 - nature.com
An electromagnetic (EM) pulse falling on a plasma medium from vacuum can either reflect,
get absorbed or propagate inside the plasma depending on whether it is overdense or …