In plasma physics, an alfven wave, named after hannes alfven, is a type of. Mar 23, 2007 kinetic alfven waves with finite larmor radius effects have been examined rigorously in a uniform dusty plasma in the presence of an externalambient magnetic field. In this paper, we study the dispersion and instability of kaws in a magnetoplasma with density striation. Quantum treatment of kinetic alfvon waves instability in a dusty plasma.
The competition between different damping processes of kinetic alfven waves and alfven cyclotron. Kinetic alfven wave instability in a lorentzian dusty plasma. A kinetic formulation developed to analyze wave propagation in dusty plasmas, which takes into account the charge variation of the dust particles, is utilized to study the propagation and damping of alfven waves propagating in oblique. Thus, the plasma density inhomogeneity is considered as the main source of kinetic alfven wave instability and the influence of electric field inhomogeneity observed for the plasma sheet in the dusty magnetospheric plasma is. Kinetic alfven waves kaws have been studied in a low. By considering cold electrons we get inertial alfven waves in low beta plasma mobile dust introduces a new cutoff frequency which limits the motion for the propagation of electromagnetic wave. The effect of the dust chargetomass ratio on the soliton solution is discussed. Dust charge fluctuation dcf effect on kaw have been studied under space and laboratory conditions using fluid description of the dusty plasma. Hasegawa 1976 9 first suggested that smallscale kinetic alfven waves possessed parallel electric fields and could be an efficient mechanism for accelerating particles on plasma sheet field lines. It has also been observed simultaneously by polar and fast satellites in the plasma sheet boundary layer at 46re re is the earths radius. A linear dispersion relation of kinetic alfven wave in inertial regime is derived by incorporating bohm potential in the linearized vlasov model. Chaliha college, department of mathematics, guwahati, assam, india 2 girijananda choudhury institute of management technology gimt, department of mathematics, azara, guwahati781017, assam, india. The waves then leave the surface, travel through the chromosphere and transition zone, and interact with the ionized plasma.
Mozer space sciences laboratory, university of california, berkeley, ca. Time dependent evolution of linear kinetic alfven waves in. Nonlinear dust acoustic and dust kinetic alfven waves. Dust kinetic alfven solitary and rogue waves in a superthermal dusty. The kinetic alfven waves are investigated for the dusty plasma using maxwellboltzmannvlasov equations. Weibel instability oscillation in a dusty plasma with counter. Propagation characteristics of microwaves in dusty plasmas. In this paper we propose that the wave power converted into kinetic alfven waves may play an important role in plasma transport at the dayside magnetopause and in electron. The work is devoted to the study of the behavior of dispersive alfven waves in astrophysical plasma of finite and high pressure. The ion mass density provides the inertia and the magnetic field line tension provides the restoring force. A nonlinear kortewegde vries equation, which governs the evolution of dkasws, has been derived using.
It is found that, when dust dynamics is neglected, the presence of cold dust. Twopotential theory has been applied for these electromagnetic waves and the dispersion relation is derived which shows a cutoff frequency at the dustlowerhybrid frequency due to the hybrid motion of magnetized ions and cold. Kinetic alfven waves in inhomogeneous anisotropic dusty. Parametric instability of a monochromatic alfven wave. Pdf alfven waves in space and astrophysical dusty plasmas. Kinetic alfven waves have been invoked in association with auroral currents and particle acceleration since the pioneering work of hasegawa 1976. Jaffer 2 department of space science, institute of space technology, islamabad, pakistan. View the article pdf and any associated supplements and figures for a period of 48 hours.
Modulational instability of electronacoustic waves in the. Rubab, n, erkaev, nv and biernat, hk 2009 dust kinetic alfven and acoustic waves in a lorentzian plasma. As compressional waves propagation to the magnetopause, there gradients efficiently couple them with shear kinetic alfven waves near the alfven fieldline resonance. In the dynamics of dusty alfven waves, the kinetic effects finite larmor radius of dust grains are taken into account. The drude model is improved to describe the dielectric property of dusty plasmas, which accounts for collisions including electronmolecule, electron ion.
Pdf nonlinear coupling of kinetic alfven waves with acoustic. Scime2 1centre for energy studies, indian institute of technology, delhi 110016, india 2department of physics, west virginia university, morgantown, west virginia 265066315, usa. Kinetic alfven waves kaws can play an important role. On kinetic alfven waves in a dusty plasma sciencedirect. On kinetic alfven waves in a dusty plasma deepdyve. Magnetoacoustic modes in a magnetized dusty plasma. Research article quantum treatment of kinetic alfven waves instability in a dusty plasma.
Recently, effects of dust on alfven wave absorption in tokamak edge plasmas has been discussed 9. The wave itself carries energy and some of the electrically charged plasma. Dust kinetic alfven solitary and rogue waves in a dusty plasma with two temperature nonextensive ions article pdf available in physics of plasmas 247. An obliquely propagating solitary kinetic alfven wave in a low beta dusty plasma memi is studied by considering the ion motion along the magnetic field and the collisional effect of electrons. It is found that, when dust dynamics is neglected, the. Jun 25, 2001 on account of the presence of a dust beam parallel to the direction of the uniform magnetic field, the dustkinetic alfven wave becomes unstable and grows in amplitude when the drift velocity of dust particles exceeds the parallel phase velocity of the wave. Growth rate of the alfven wave instability as a function of unstable wavenumber kz for different values of thermal electron speed. The linear dispersion relation for electromagnetic wave using vlasovfluid equations in a dusty plasma is derived. On the kinetic dispersion relation for shear alfven waves. Research article quantum treatment of kinetic alfven waves.
The kinetic equation for the particles may be averaged over these fluctuations to find averaged kinetic equations, sometimes called the quasilinear equations. Nonlinear coupling of kinetic alfven waves with acoustic waves in a. International journal of science and research ijsr. Electromagneic waves in a nonelectromagneic waves in a non maxwellian dusty plasma nazish rubab phd student, kf university graz iwfiwf oeaw grazoeaw graz 26 january, 2011. Effect of kappa distribution function on kinetic alfven waves.
Starting with the threefluid equations and the maxwell equations, we derive, retaining finite ion mass, an effective twofluid model incorporating deviations from the. Laboratory experiments on shear alfven waves and their. Effect of polarization force on small amplitude dust kinetic. Bohm potential, dust grains, kinetic alfven waves 1 introduction theoretical and laboratory studies on.
Effect of kappa distribution function on kinetic alfven. A nonlinear mechanism of kinetic alfven waves kaw generation on dust plasma with small plasma parameter. Time dependent evolution of linear kinetic alfven waves in inhomogeneous plasma r. Voitenko main astronomical observatory, holosiiv, kyiv127, 03680, ukraine t kyiv national university, department of astronomy and space plasma physics, pr. On the basis of the threefluid mhd, the nonlinear dispersion equation describing the three wave interaction is deduced and its solution is. The electromagnetic alfven waves were driven to instability by the thermal streaming electrons. Dust kinetic alfven solitary and rogue waves in a superthermal dusty plasma article pdf available in physics of plasmas 2211.
Modified two stream instability mtsi in a dusty plasma has been discussed in the limit. Pdf dust kinetic alfven solitary and rogue waves in a. Kinetic alfven wave instability is examined rigorously in a uniform nondegenerate quantum dusty plasma. The instability growth rate depends on the temperature and density of the plasma ionselectrons, the alfven speed, and the dust flow. Kinetic alfven wave instability in a lorentzian dusty. Kinetic alfven waves in a homogeneous dusty magnetoplasma. Our purpose in this paper is to be investigating the effect of kappa distribution function with dusty plasma on kinetic alfven waves. The limits of plasma beta in dusty plasmas for the coupled perturbation is discussed for two. Electron beam effects on kinetic alfven waves in the plasma. Laboratory experiments on shear alfven waves and their relationship to space plasmas. Kinetic theory of nonlinear dustacoustic waves in a dusty plasma. In this paper, linear and nonlinear coupling of kinetic alfven and acoustic waves has been studied in a dusty plasma in the presence of trapping and selfgravitation effects. The generation of alfven waves in ambient magnetic and plasma fields to generate thrust is proposed as a truly propellantless propulsion system which may enable an entirely new matrix of exploration missions. Alfven waves in space and astrophysical dusty plasmas.
May 02, 2005 nonlinear dust acoustic and dust kinetic alfven waves nonlinear dust acoustic and dust kinetic alfven waves mahmood, s saleem, h. Pdf in this paper, linear and nonlinear coupling of kinetic alfven and acoustic waves has been studied in a dusty plasma in the presence of trapping. However, to date, no work has considered the dispersion relation including the full kinetic effects for both electrons and ions. The dispersion relation and damping rate are derived including the effect of negatively. Scime2 1centre for energy studies, indian institute of technology, delhi 110016, india. The generation of kinetic alfven waves in dust plasma. The lowfrequency long wavelength electromagnetic waves, viz. Dust charge fluctuation effect, kinetic alfven wave, finite larmor radius effect, two potential theory, cutoff frequency. This chapter contains a short discussion of some fundamental plasma phenomena. These are waves that propagate in the plasma and magnetic fields around and between planets and stars. The limits of plasma beta in dusty plasmas for the coupled perturbation is discussed for two component dustion and three component dustionelectron plasmas.
Weibel instability oscillation in a dusty plasma with. The results of the work are consistent for alfven wave in dusty plasma are applicable of the magnetospheric and astrophysical in auroral acceleration region. International journal of science and research ijsr, india. However, large gradients in the density and magnetic field at the magnetopause boundary effectively couple large. In the past, the method of particle aspect analysis55.
Alfven wave instability with streaming electrons in. Excitation of fast and slow magnetosonic waves by kinetic alfven waves a. The particle aspect approach is adopted to investigate the trajectories of charged particles in the electromagnetic field of kinetic alfven wave. The plasma is considered to consist of two electrons cold and hot species and ions. Dust kinetic alfven solitary waves dkasws have been examined in a low. Shukla et al kinetic model of alfven wave in dusty plasma. In magnetized dusty plasma, kinetic alfven wave kaw is one of the most important wave in electromagnetic regime and is ubiquitous in space environments for transporting electromagnetic energy.
Large amplitude compressional type waves, with frequencies ranging from 10500 mhz, are nearly always found in the magnetosheath near the magnetopause where there are large gradients in density, pressure and magnetic field. P varma and m s tiwari, study of kinetic alfven wave kaw in plasma sheetboundary layer. Rubab, n, erkaev, nv, biernat, hk and langmayr, d 2011 kinetic alfven wave instability in a lorentzian dusty plasma. On kinetic alfven waves in a dusty plasma on kinetic alfven waves in a dusty plasma salimullah, m rosenberg, m. Kinetic alfven waves and plasma transport at the magnetopause. Quantum treatment of kinetic alfven waves instability in a. Electromagneic waves in a non maxwellian dusty plasma. Evidence for kinetic alfven waves and parallel electron. The dispersion and damping of a dustmodified kinetic alfven wave, and a lower frequency dust kinetic alfven wave, is investigated in a dusty plasma comprising electrons, ions, and negative dust. Lowfrequency waves in strongly coupled magnetized scdp have been studied by xie 16 incorporating the gh model. In this paper, we study the nonlinear excitation of kinetic alfven waves by electronacoustic waves in a threecomponent plasma through a parametric process. Pdf obliquely propagating solitary kinetic alfven wave. For we arrive at the dispersion curves for mtsi, whose growth rates are larger as compared to inertial alfven wave instability.
It is sometimes referred to as the fourth state of matter, distinct from the solid, liquid, and gaseous states. A systematic analysis of lowfrequency waves such as hydromagnetic and acoustic waves in a magnetized dusty plasma containing electrons, ions and dust particles is presented. Numerical calculations of the growth rate of instability have been carried out. Quantum treatment of kinetic alfvon waves instability in a. Effect of polarization force on small amplitude dust. Low frequency electromagnetic and kinetic alfven waves in a. All the main wave characteristics were obtained, namely, the dispersion, fading, polarization, density perturbations, and charge density perturbations.
This work studies the effect of earthward electron beam on kinetic alfven wave in plasma sheet boundary layer psbl. Evidence for kinetic alfven waves and parallel electron energization at 46 re altitudes in the plasma sheet boundary layer j. Plasma, in physics, an electrically conducting medium in which there are roughly equal numbers of positively and negatively charged particles, produced when the atoms in a gas become ionized. The sagdeev potential is derived analytically with constant dust charge and then calculated numerically by taking the dust charge variation into account. Pdf nonlinear coupling of kinetic alfven waves with. Chapter 5 electromagnetic waves in mit opencourseware. Introduction dusty plasma is generally a combination of normal electronion plasma with an additional charged component of micron. A nonlinear dispersion equation describing three wave interaction is obtained on the basis of threefluid magnetohydrodynamics. Lowfrequency waves in magnetized dusty plasmas journal of. Excitation of fast and slow magnetosonic waves by kinetic. The kinetic alfven waves hasegawa had spatial scales perpendicular to b such that k s.
Lysak school of physics and astronomy, university of minnesota, minneapolis, mn m. In this letter, we examine the effect of dust on the kinetic alfven waves in a magnetized dusty plasma with electrons, singly charged ions, and negatively charged dust of uniform size and charge state zd, using standard vlasovmaxwells equations. Maxwellian electron distributions on kinetic alfven waves in low. In this paper, linear and nonlinear coupling of kinetic alfven and acoustic waves has been studied in a dusty plasma in the presence of trapping. In section 2 we introduce ey plasma properties like quasik neutrality, shielding, particle transport processes and sheath formation.
A theory for the formation of mach cones in magnetized dusty plasma with strongly correlated charged dust grains has. Electromagnetic and electrostatic plasma instabilities driven by the parallel or cross eld currents. The expression for the dispersion relation, growth rate and growth length of the kinetic alfven waves are derived using the particle aspect analysis in auroral acceleration region. Large amplitude kinetic alfven excitations in nonmaxwellian plasmas. In the present investigation, the effect of polarization force on small amplitude dust kinetic alfven solitary waves dkasws and dust kinetic alfven. These kinetic equations describe the slow evolution of the waves, which may be damped or may grow, and of the particles, which diffuse in momentum space.
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