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Linear kinetic waves in plasmas described by Kappa Distributions
(Elsevier, 2017)
In this chapter we present an overview of the excitation, propagation, and
absorption of linear plasma waves in collisionless, spatially uniform, multicomponent,
magnetized non-Maxwellian plasma characterized by a ...
Alfveacuten continuum deformation by kinetic geodesic effect in rotating tokamak plasmas
(AMER INST PHYSICS, 2010)
Using a quasitoroidal set of coordinates with coaxial circular magnetic surfaces, Vlasov equation is solved for collisionless plasmas in drift approach and a perpendicular dielectric tensor is found for large aspect ratio ...
Shear-driven Instabilities in Hall-Magnetohydrodynamic Plasmas
(IOP Publishing, 2011-07)
The large-scale dynamics of plasmas is well described within the framework of magnetohydrodynamics (MHD). However, whenever the ion density of the plasma becomes sufficiently low, the Hall effect is likely to become ...
Effect of a large-amplitude circularly polarized wave on linear beam-plasma electromagnetic instabilities
(Blackwell Publishing Ltd, 2003)
In a previous paper, sufficiently large-amplitude and left-handed ‘‘pump waves’’
propagating parallel to the background magnetic field were shown to stabilize a
moderately dense beam in a proton plasma against the ...
A firehose-like aperiodic instability of counter-beaming electron plasmas
(IOP Publishing, 2020)
Depending on the physical conditions involved, beam plasma systems may reveal new unstable regimes triggered by wave instabilities of different natures. We show through linear theory and numerical simulations the existence ...
Particle-in-Cell Simulations of Continuosly Driven Mirror and Ion cycloton Instability in High Beta Astrophysical and Heliospheric Plasmas
(American Astronomical Society, 2015)
We use particle-in-cell simulations to study the nonlinear evolution of ion velocity space instabilities in an
idealized problem in which a background velocity shear continuously amplifies the magnetic field. We simulate
the ...
Stabilization of right-hand polarized beam plasma instabilities due to a large-amplitude left-hand polarized wave: A simulation study
(Blackwell Publishing Ltd, 2004)
It has been recently shown that the presence of large amplitude left-hand polarized waves can change the linear properties of ion-beam plasma electromagnetic instabilities [Gomberoff, 2003]. Thus, it was shown that in the ...
Instabilities; shocks and turbulence in space and astrophysical plasmas
(Asociación Argentina de Astronomía, 2018-10)
The dynamics of plasmas pervading the interplanetary and interstellar medium are often described within the frame of magnetohydrodynamics (MHD), which involves the coupling between flows and magnetic fields. This theoretical ...
PIC Simulations of Velocity-space Instabilities in a Decreasing Magnetic Field: Viscosity and Thermal Conduction
(Institute of Physics Publishing, 2018)
We use particle-in-cell (PIC) simulations of a collisionless, electron–ion plasma with a decreasing background
magnetic field, B, to study the effect of velocity-space instabilities on the viscous heating and thermal ...