Linear and Nonlinear Electrostatic Excitations and Their Stability in a Nonextensive Anisotropic Magnetoplasma

In the present work, the propagation of (non)linear electrostatic waves is reported in a normal (electron–ion) magnetoplasma. The inertialess electrons follow a non-extensive q-distribution, while the positive inertial ions are assumed to be warm mobile. In the linear regime, the dispersion relation...

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Bibliographic Details
Published inSymmetry (Basel) Vol. 13; no. 11; p. 2232
Main Authors Khalid, Muhammad, Ata-ur-Rahman, Althobaiti, Ali, Elagan, Sayed K., Alkhateeb, Sadah A., Elghmaz, Ebtehal A., El-Tantawy, Samir A.
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.11.2021
Subjects
Acoustics
anisotropic magnetoplasma
Electrostatic waves
Equilibrium
Field strength
Investigations
Magnetic fields
non-Maxwellian electrons
oblique perturbations
Parameters
Perturbation methods
Physical properties
Planar structures
Plasma
Plasmas (physics)
Propagation
Solitary waves
stability analysis of ZK solitons
Velocity
Wave propagation
Zakharov–Kuznetsov solitons
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Summary:In the present work, the propagation of (non)linear electrostatic waves is reported in a normal (electron–ion) magnetoplasma. The inertialess electrons follow a non-extensive q-distribution, while the positive inertial ions are assumed to be warm mobile. In the linear regime, the dispersion relation for both the fast and slow modes is derived, whose properties are analyzed parametrically, focusing on the effect of nonextensive parameter, component of parallel anisotropic ion pressure, component of perpendicular anisotropic ion pressure, and magnetic field strength. The reductive perturbation technique is employed for reducing the fluid equation of the present plasma model to a Zakharov–Kuznetsov (ZK) equation. The parametric role of physical parameters on the characteristics of the symmetry planar structures such solitary waves is investigated. Furthermore, the stability of the pulse soliton solution of the ZK equation against the oblique perturbations is investigated. Furthermore, the dependence of the instability growth rate on the related physical parameters is examined. The present investigation could be useful in space and astrophysical plasma systems.
ISSN:2073-8994
2073-8994
DOI:10.3390/sym13112232