Stability of the magnetosonic wave in a cometary multi-ion plasma

Sreekala, G.; Varghese, Anu; Jayakumar, Neethu; Michael, Manesh; Sebastian, Sijo; Venugopal, Chandu

doi:10.1016/j.asr.2017.02.039

Cited by 4 publications

(2 citation statements)

References 59 publications

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“…Numerous research studies have been conducted to study MS waves in non-Maxwellian plasma. The WPI of MS waves under the assumption i w w  has been investigated in a losscone distribution [21] as well as in an anti-loss cone one [22]. For the loss-cone distribution, depending upon the choice of the loss-cone parameters, the wave growth may either be increased or decreased [21].…”

Section: Introductionmentioning

confidence: 99%

“…The WPI of MS waves under the assumption i w w  has been investigated in a losscone distribution [21] as well as in an anti-loss cone one [22]. For the loss-cone distribution, depending upon the choice of the loss-cone parameters, the wave growth may either be increased or decreased [21]. However, in the case of the antiloss cone, the wave is always damped and is smaller as compared to the Maxwellian distribution [22].…”

Section: Introductionmentioning

confidence: 99%

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Effect of kappa distribution on the damping rate of the obliquely propagating magnetosonic mode

Khan

Murtaza

2018

Plasma Sci. Technol.

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Data from spacecrafts suggest that space plasma has an abundance of suprathermal particles which are controlled by the spectral index κ when modeled on kappa particle velocity distribution. In this paper, considering homogeneous plasma, the effect of integer values of κ on the damping rate of an obliquely propagating magnetosonic (MS) wave is studied. The frequency of the MS wave is assumed to be less than ion cyclotron frequency, i.e., i w w . Under this assumption, the dispersion relation is investigated both numerically and analytically, and it is found that the real frequency of the wave is not a sensitive function of κ, but the imaginary part of the frequency is. It is also shown that for those values of κ where a large number of resonant particles participate in wave-particle interaction, the wave is heavily damped, as expected. The possible application of the results to the solar wind is discussed.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of kappa distribution on the damping rate of the obliquely propagating magnetosonic mode

Khan

Murtaza

2018

Plasma Sci. Technol.

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Nonthermal effects on the cylindrical dusty ion shocks in nonthermal viscous space plasma

Abdelwahed

El-Shewy

El-Rahman

et al. 2020

Advances in Space Research

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Obliquely propagating magnetosonic waves in a plasma modeled by bi-anisotropic Cairns distribution

et al. 2018

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Waves and instabilities have very often been an object of fascination since the introduction of non-Maxwellian features in space plasmas. To date, the dispersion relation, including real frequency, damping, and growth rates of magnetosonic waves has been studied in many different types of non-Maxwellian distributions. However, these characteristics have been overlooked in the temperature bi-anisotropic Cairns distribution, characterized by the free parameter Λ. By employing the linearized Vlasov–Maxwell system in homogeneous plasma, the dispersion relation is analytically solved. It is found that the non-Maxwellian features, Λ ≠ 0 along with electron temperature anisotropy, notably modify the real frequency, damping, and growth rates—both in the hydrodynamic as well as in the kinetic regimes. Interestingly, the growth rate in the kinetic regime is entirely due to the correlation of Λ with the electron temperature anisotropy which is otherwise absent in the Maxwellian distribution. Due to their relevance, the results are applicable to solar wind plasma.

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Stability of the magnetosonic wave in a cometary multi-ion plasma

Cited by 4 publications

References 59 publications

Effect of kappa distribution on the damping rate of the obliquely propagating magnetosonic mode

Effect of kappa distribution on the damping rate of the obliquely propagating magnetosonic mode

Nonthermal effects on the cylindrical dusty ion shocks in nonthermal viscous space plasma

Obliquely propagating magnetosonic waves in a plasma modeled by bi-anisotropic Cairns distribution

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