Higher harmonic instability of electrostatic ion cyclotron waves

Sreeraj, T.; Singh, S. V.; Lakhina, G. S.

doi:10.1007/s12043-019-1740-4

Cited by 3 publications

(1 citation statement)

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“…Influence of plasma parameters on the low frequency ion cyclotron and ion acoustic waves are investigated in [13]. More recently low frequency modes observed in lunar wake are focused in [14], kinetic Alfven waves excited by ion beam in the Earth's magnetosphere was studied in [15] to investigate the influence of plasma parameters on growth of low frequency waves, further it was shown in [16] that plasma parameters have significant signature on the helium cyclotron instability.…”

Section: Introductionmentioning

confidence: 99%

Low-frequency plasma waves in a radiative dusty magnetoplasma

et al. 2020

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The impact of electromagnetic (thermal) radiation on the dispersive low-frequency waves is examined in a radiative dusty magnetoplasma. For this purpose, a magneto-hydrodynamic model along with the Maxwell equations is employed to describe the three-component radiative dusty plasma that contains inertialess electrons, dynamical positive ions and negatively charged static dust particulates. The behavior of the electrostatic and electromagnetic waves significantly changes in a plasma medium when a radiation pressure is taken into consideration, as compared to the waves in vacuum. After seeking a plane wave solution, a general dispersion relation is obtained to investigate different limiting cases of the low-frequency modes propagating parallel, perpendicular and oblique to the external magnetic field direction both analytically and numerically. The calculations reveal that the usual thermal and acoustic speeds (cT, ca) do not remain constant even if the temperature is kept constant, because of the radiation pressure which strongly depends on the equilibrium number density as well. The present results may prove a useful understanding for the new features of the dispersive dust-ion-acoustic and compressional Alfven waves in astrophysical dusty magnetoplasmas.

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