Results 31 to 40 of about 5,159,006 (358)

Ion solitary waves in a dense quantum plasma [PDF]

open access: yes, 2008
The existence of localized ion waves in a dense quantum plasma is established. Specifically, ion solitary waves are stationary solutions of the equations composed of the nonlinear ion continuity and ion momentum equations, together with the Poisson ...
Shukla, Padma   +3 more
core   +1 more source

Growth of Rayleigh instability in a Hall thruster channel having dust in exit region

open access: yesAIP Advances, 2019
In a Hall thruster, the axial movement of ions towards the exit of the chamber and the divergence of ion beam sputter the wall and thus the maximum erosion of wall of the exit region takes place.
Hitendra K. Malik   +2 more
doaj   +1 more source

Nongyrotropic particle distributions in space plasmas [PDF]

open access: yesAnnales Geophysicae, 1999
In nonstationary, strong inhomogeneous or open plasmas particle orbits are rather complicated. If the nonstationary time scale is smaller than the gyration period, if the inhomogeneity scale is smaller than the gyration radius, i.e. at magnetic plasma
U. Motschmann   +4 more
doaj   +1 more source

Langmuir Turbulence in the Auroral Ionosphere: Origins and Effects

open access: yesFrontiers in Astronomy and Space Sciences, 2021
Theory and observations of Langmuir waves and turbulence induced in the auroral ionosphere by electron beams of magnetospheric-origin are reviewed.
Hassanali Akbari   +2 more
doaj   +1 more source

Production of small-scale Alfvén waves by ionospheric depletion, nonlinear magnetosphere-ionosphere coupling and phase mixing [PDF]

open access: yes, 2013
The authors acknowledge the International Space Science Institute (Switzerland) for funding the program that inspired this work. AJBR is grateful to the Royal Commission for the Exhibition of 1851 for present support and acknowledges an STFC studentship ...
Russell, A. J.B.   +9 more
core   +1 more source

Interaction of radio frequency waves with cylindrical density filaments -- scattering and radiation pressure

open access: yes, 2021
Submitted for publication in Journal of Plasma PhysicsThe propagation of radio frequency (RF) waves in tokamaks can be affected by filamentary structures, or blobs, that are present in the edge plasma and the scrape-off layer.
Hizanidi, Kyriakos   +2 more
core   +1 more source

Linear theory of electron-plasma waves at arbitrary collisionality

open access: yes, 2020
The dynamics of electron-plasma waves is described at arbitrary collisionality by considering the full Coulomb collision operator. The description is based on a Hermite–Laguerre decomposition of the velocity dependence of the electron distribution ...
Perrone, L. M.   +7 more
core   +1 more source

Weakly nonlinear waves in magnetized plasma with a slightly non-Maxwellian electron distribution. Part 2, Stability of cnoidal waves [PDF]

open access: yes, 2007
We determine the growth rate of linear instabilities resulting from long-wavelength transverse perturbations applied to periodic nonlinear wave solutions to the Schamel–Korteweg–de Vries–Zakharov–Kuznetsov (SKdVZK) equation which governs weakly nonlinear
Phibanchon, S.   +2 more
core   +1 more source

Kinetic Plasma Turbulence: Recent Insights and Open Questions From 3D3V Simulations

open access: yesFrontiers in Astronomy and Space Sciences, 2019
Turbulence and kinetic processes in magnetized space plasmas have been extensively investigated over the past decades via in-situ spacecraft measurements, theoretical models and numerical simulations.
Silvio Sergio Cerri   +2 more
doaj   +1 more source

Photospheric magnetic vortex structures [PDF]

open access: yes, 2011
Using direct numerical magneto-hydrodynamic (MHD) simulations, we demonstrate the evidence of two physically different types of vortex motions in the solar photosphere.
Shelyag, S.   +14 more
core   +1 more source

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