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A procedure that allows study of unstable stability of a boundary layer between plasma and a magnetic field has been developed. Layer equilibrium for one reason or another is not set but follows from strict solution of kinetic equation with…

等离子体物理 · 物理学 2010-05-25 V. V. Lyahov , V. M. Neshchadim

With the support of hybrid-kinetic simulations and analytic theory, we describe the nonlinear behaviour of long-wavelength non-propagating (NP) modes and fast magnetosonic waves in high-$\beta$ collisionless plasmas, with particular…

高能天体物理现象 · 物理学 2023-04-05 Stephen Majeski , Matthew W. Kunz , Jonathan Squire

Long-term simulations of energetic electron fluxes in many space plasma systems require accounting for two groups of processes with well separated time-scales: microphysics of electron resonant scattering by electromagnetic waves and…

等离子体物理 · 物理学 2021-10-04 A. S. Lukin , A. V. Artemyev , A. A. Petrukovich

In many astrophysical plasmas, the Coulomb collision is insufficient to maintain an isotropic temperature, and the system is driven to the anisotropic regime. In this case, magnetohydrodynamic (MHD) models with anisotropic pressure are…

等离子体物理 · 物理学 2023-08-09 Hongyang Luo , John G. Lyon , Binzheng Zhang

Interstellar magnetic fields influence all stages of the process of star formation, from the collapse of molecular cloud cores to the formation of protostellar jets. This requires us to have a full understanding of the physical properties…

天体物理学 · 物理学 2009-11-13 Cecilia Pinto , Daniele Galli , Francesca Bacciotti

The interplay between electron-scale and ion-scale phenomena is of general interest for both laboratory and space plasma physics. In this paper we investigate the linear coupling between whistler waves and slow magnetosonic solitons through…

等离子体物理 · 物理学 2012-03-20 Anna Tenerani , Francesco Califano , Francesco Pegoraro , Olivier Le Contel

Using a rotating flat layer heated from below as an example, we consider effects which lead to stabilizing an exponentially growing magnetic field in magnetostrophic convection in transition from the kinematic dynamo to the full non-linear…

流体动力学 · 物理学 2015-05-18 P. Hejda , M. Reshetnyak

The ideal magnetohydrodynamic theorem on the conservation of the magnetic connections between plasma elements is extended to non-ideal relativistic plasmas in curved spacetime. The existence of generalized magnetofluid connections that are…

等离子体物理 · 物理学 2020-07-28 Luca Comisso , Felipe A. Asenjo

The one-dimensional flight of a fast electron flux in plasma is investigated taking into account generation and absorption of plasma waves. The transition from the kinetic description to the gas dynamics is made. The closed set of gas…

等离子体物理 · 物理学 2018-02-23 V. N. Mel'Nik

Ion-scale magnetospheres have been observed around comets, weakly-magnetized asteroids, and localized regions on the Moon, and provide a unique environment to study kinetic-scale plasma physics, in particular in the collisionless regime. In…

等离子体物理 · 物理学 2022-04-13 Filipe D. Cruz , Derek B. Schaeffer , Fábio Cruz , Luis O. Silva

We study nonlinear waves in a nonrelativistic ideal and cold quark gluon plasma immersed in a strong uniform magnetic field. In the context of nonrelativistic hydrodynamics with an external magnetic field we derive a nonlinear wave equation…

核理论 · 物理学 2018-07-10 D. A. Fogaça , S. M. Sanches , F. S. Navarra

Nonlinear ion-acoustic waves are analyzed in a non-relativistic magnetized quantum plasma with arbitrary degeneracy of electrons. Quantum statistics is taken into account by means of the equation of state for ideal fermions at arbitrary…

等离子体物理 · 物理学 2017-12-15 Fernando Haas , Shahzad Mahmood

The non-stationary nonlinear models of magnetostatic waves propagation in layered ferromagnetic structures are developed. This models are based on use of the coupled nonlinear Schrodinger equations for amplitude of a bending around taking…

经典物理 · 物理学 2007-05-23 M. A. Malugina , Yu. P. Sharaevsky

The growing need for a better understanding of nonlinear processes in plasma physics has in the last decades stimulated the development of new and more advanced data analysis techniques. This review lists some of the basic properties one…

comp-gas · 物理学 2008-02-03 T. Dudok de Wit

We introduce the concept of magnetoelastic metamaterials with electromagnetic properties depending on elastic deformation. We predict a strong nonlinear and bistable response of such metamaterials caused by their structural reshaping in…

光学 · 物理学 2011-12-21 Mikhail Lapine , Ilya V. Shadrivov , David A. Powell , Yuri S. Kivshar

We study magnetothermal instability in the ionized plasmas including the effects of Ohmic, ambipolar and Hall diffusion. Magnetic field in the single fluid approximation does not allow transverse thermal condensations, however, non-ideal…

太阳与恒星天体物理 · 物理学 2014-11-20 Mohsen Shadmehri , Mohsen Nejad-Asghar , Alireza Khesali

Nonlinear oscillations within a plasma slab are analyzed. Two types of solutions are found, depending on the initial value of the electron density. The first represents regular oscillations within the plasma slab, while the second gives…

等离子体物理 · 物理学 2007-05-23 L. Stenflo , M. Marklund , G. Brodin , P. K. Shukla

Considering the nonlinear electromagnetic field coupled to Einstein gravity in the presence of cosmological constant, we obtain a new class of $d$-dimensional magnetic brane solutions. This class of solutions yields a spacetime with a…

高能物理 - 理论 · 物理学 2014-11-21 Seyed Hossein Hendi

In this paper we present the results of time-dependent simulations of dipolar axisymmetric magnetospheres of neutron stars carried out both within the framework of relativistic magnetohydrodynamics and within the framework of resistive…

天体物理学 · 物理学 2009-11-13 S. S. Komissarov

New non-linear, spatially periodic, long wavelength electrostatic modes of an electron fluid oscillating against a motionless ion fluid (Langmuir waves) are given, with viscous and resistive effects included. The cold plasma approximation…

等离子体物理 · 物理学 2010-05-28 A. A. Skorupski , E. Infeld