Importance of resolving the spectral support of beam-plasma instabilities in simulations

@article{Shalaby2017ImportanceOR,
title={Importance of resolving the spectral support of beam-plasma instabilities in simulations},
author={Mohamad Shalaby and Avery E. Broderick and Philip Chang and Christoph Pfrommer and Astrid Lamberts and Ewald Puchwein},
journal={arXiv: High Energy Astrophysical Phenomena},
year={2017}
}
• M. Shalaby, +3 authors E. Puchwein
• Published 31 March 2017
• Physics
• arXiv: High Energy Astrophysical Phenomena
Many astrophysical plasmas are prone to beam-plasma instabilities. For relativistic and dilute beams, the {\it spectral} support of the beam-plasma instabilities is narrow, i.e., the linearly unstable modes that grow with rates comparable to the maximum growth rate occupy a narrow range of wave numbers. This places stringent requirements on the box-sizes when simulating the evolution of the instabilities. We identify the implied lower limits on the box size imposed by the longitudinal beam… Expand
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References

SHOWING 1-10 OF 27 REFERENCES
The Linear Instability of Dilute Ultrarelativistic e ± Pair Beams
The annihilation of TeV photons from extragalactic TeV sources and the extragalactic background light produces ultrarelativistic e± beams, which are subject to powerful plasma instabilities that sapExpand
The Effect of Nonlinear Landau Damping on Ultrarelativistic Beam Plasma Instabilities
Very-high energy gamma-rays from extragalactic sources pair-produce off of the extragalactic background light, yielding an electron-positron pair beam. This pair beam is unstable to various plasmaExpand
Multidimensional electron beam-plasma instabilities in the relativistic regime
• Physics
• 2010
The interest in relativistic beam-plasma instabilities has been greatly rejuvenated over the past two decades by novel concepts in laboratory and space plasmas. Recent advances in this long-standingExpand
SHARP: A Spatially Higher-order, Relativistic Particle-in-Cell Code
• Physics
• 2017
Numerical heating in particle-in-cell (PIC) codes currently precludes the accurate simulation of cold, relativistic plasma over long periods, severely limiting their applications in astrophysicalExpand
Exact relativistic kinetic theory of the full unstable spectrum of an electron-beam-plasma system with Maxwell-Jüttner distribution functions.
• Physics, Medicine
• Physical review. E, Statistical, nonlinear, and soft matter physics
• 2010
This work presents a detailed report of the entire unstable k spectrum of a relativistic collisionless beam-plasma system within a fully kinetic framework and investigates the hierarchy between the competing modes, paying particular attention to the relatively poorly known quasielectrostatic oblique modes. Expand
Linear and nonlinear development of oblique beam-plasma instabilities in the relativistic kinetic regime
• Physics
• 2007
Collisionless beam-plasma instabilities are expected to play a crucial role during the early phase of the relativistic electron transport in the Fast Ignition scheme. This Letter presents aExpand
e(sup +/-) Pair Loading and the Origin of the Upstream Magnetic Field in GRB Shocks
• Physics
• 2006
We investigate here the effects of plasma instabilities driven by rapid e±-pair cascades, which arise in the environment of γ-ray burst (GRB) sources as a result of back-scattering of a seed fractionExpand
On the ultrarelativistic two-stream instability, electrostatic turbulence and Brownian motion
• Physics
• 2006
The observation of ultra-relativistic plasma flow in the form of the collimated jets of active galactic nuclei and gamma ray bursts requires a better understanding of their relaxation. A descriptionExpand
Cosmic-Ray-induced Filamentation Instability in Collisionless Shocks
• Physics
• 2013
We used unprecedentedly large two-dimensional and three-dimensional hybrid (kinetic ions?fluid electrons) simulations of non-relativistic collisionless strong shocks in order to investigate theExpand
Relaxation of Blazar-induced Pair Beams in Cosmic Voids
• Physics
• 2012
The stability properties of a low-density ultrarelativistic pair beam produced in the intergalactic medium (IGM) by multi-TeV gamma-ray photons from blazars are analyzed. The problem is relevant forExpand