Large-amplitude dust inertial Alfvén waves in an electron-depleted dusty plasma

Singh, Manpreet; Singh, Kuldeep; Saini, N. S.

doi:10.1007/s12043-021-02226-6

Cited by 8 publications

(4 citation statements)

References 32 publications

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“…In presence of a strong magnetic field ions get strongly magnetised in the direction of the magnetic field and moves in the direction of magnetic field only. [32]. So, equation of motion of ion in z-direction is ( )…”

Section: Y = ¶ ¶mentioning

confidence: 99%

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A study on dust inertial Alfvén solitary waves in a magnetized dust-ion-electron plasma using sagdeev potential method

Choudhury

2024

Phys. Scr.

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- The propagation characteristics of arbitrary amplitude Dust Inertial Alfvén Solitary Wave (DIASW) has been studied in a three-component plasma consisting of magnetized cold dust, magnetized cold ions and electrons with Boltzmann distribution. The range of Mach number where solitary waves can be formed has been established analytically. To discuss the behaviors of the DIASWs, the Sagdeev potential method is used. Both rarefactive and compressive DIASWs travelling at sub and super Alfvénic speed are generated is this plasma model.

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Section: Y = ¶ ¶mentioning

confidence: 99%

“…The study of dust inertial Alfvén waves can rarely be found. Singh et al [32] considered the effect of ion inertia and discussed large amplitude dust inertial Alfvén waves in an electron-depleted dust-ion plasma. This motivates us to study the characteristics of dust inertial Alfvén solitary waves in a three-component plasma where  ,…”

Section: Introductionmentioning

confidence: 99%

A study on dust inertial Alfvén solitary waves in a magnetized dust-ion-electron plasma using sagdeev potential method

Choudhury

2024

Phys. Scr.

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“…It may be mentioned here that in deriving the linearized equations we have neglected the nonlinear term (v.∇)v in the convective derivative (∂/∂t+v.∇), valid for weak dispersion to avoid the vector nonlinearity (Sadiq et al, 2018a). Even if it is not for weak dispersion, the convective term can be neglected for the perpendicular motion (Kaur & Saini, 2016;Sadiq et al, 2018a;M. Singh et al, 2021).…”

Section: Dynamics Of Pump Kawmentioning

confidence: 99%

Nonlinear Coupling of Kinetic Alfven Waves and Ion Acoustic Waves in the inner Heliosphere

Chettri,

Shrivastav,

Mukherjee

et al. 2024

Preprint

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We study the nonlinear coupling of kinetic Alfv\’{e}n waves with ion acoustic waves applicable to the Earth’s radiation belt and near-Sun streamer belt solar wind using dynamical equations in the form of modified Zakharov systems. Numerical simulations show the formation of magnetic field filamentary structures associated with density humps and dips which become turbulent at later times, redistributing the energy to higher wavenumbers. The magnetic power spectra exhibit an inertial range Kolmogorov-like spectral index value of \(-5/3\) for \(k_\perp\rho_i < 1\), followed by a steeper dissipation range spectra with indices \(\sim -3\) for the radiation belt case and \(\sim-4\) for the near-Sun streamer belt solar wind case, here \(k_\perp\) and \(\rho_i\) represent the wavevector component perpendicular to the background magnetic field and the ion gyroradius, respectively. Applying quasilinear theory in terms of the Fokker-Planck equation in the region of wavenumber turbulent spectra, we find the particle distribution function flattening in the superthermal tail population which is the signature of particle energization and plasma heating.

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“…Cramer and Vladimirov [ 30 ] studied that in a dusty plasma, the wave energy propagating at oblique angles to the magnetic field in an increasing density gradient can be effectively damped by the Alfven resonance absorption process. Singh et al [ 31 ] investigated that dust inertial Alfven waves (DIAWs), the obliquely propagating oscillations of dust density with respect to the external magnetic field, have the characteristics of a solitary wave. They showed that an increase in the angle of propagation for sub‐Alfvenic DIAWs results in a decrease in amplitude while having no influence on its width and the increase in the angle of propagation leads to the decrease in both the amplitude as well as the width of the DIAWs in case of super‐Alfvenic DIAWs.…”

Section: Introductionmentioning

confidence: 99%

Generation of an obliquely propagating shear alfven wave in dusty plasma by an ion beam

Gupta

Sharma

2023

Contributions to Plasma Physics

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Ion beam-dusty plasma interaction leads to significant changes in the dispersion relation of shear Alfven wave depending on the beam, dust grain, and plasma parameters. Hydrogen ion beam particles interact with the shear Alfven wave via cyclotron interaction when they counter-propagate with the wave and they can also interact with the co-propagating wave via Cerenkov interaction. The interaction causes beam as well as plasma density fluctuations and gives rise to perpendicular currents. We have analytically obtained the dispersion relation and the growth/damping rate expressions for obliquely propagating shear Alfven waves in dusty plasma. The effect of beam velocity, magnetic field, wave number, dust particle density, and dust charge fluctuations are discussed. It is shown that both the wave frequency and the maximum growth rate decrease with an increase in beam velocity and the variations are different for parallel and perpendicular wave numbers. The dust particles enhance the frequency and maximum growth rate while the dust charge fluctuations induce damping. The results are in good agreement with the experimental observations.

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Large-amplitude dust inertial Alfvén waves in an electron-depleted dusty plasma

Cited by 8 publications

References 32 publications

A study on dust inertial Alfvén solitary waves in a magnetized dust-ion-electron plasma using sagdeev potential method

A study on dust inertial Alfvén solitary waves in a magnetized dust-ion-electron plasma using sagdeev potential method

Nonlinear Coupling of Kinetic Alfven Waves and Ion Acoustic Waves in the inner Heliosphere

Generation of an obliquely propagating shear alfven wave in dusty plasma by an ion beam

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