Relativistic ion-acoustic waves in electrospherically confined gyromagnetoactive quantum plasmas

Dasgupta, Sayanti; Karmakar, Pralay Kumar

doi:10.1016/j.cjph.2021.12.005

Cited by 6 publications

(4 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thus, an increase in the Coriolis rotation destabilizes the system, and vice-versa. It is in accordance with the previous results by us 20 and astronomical evidences observed by others 47 , 48 .…”

Section: Resultssupporting

confidence: 94%

“…Due to an increase in plasma confinement on the magnetic field enhancement, the instability growth rate of the system decreases, and vice-versa. The same has also been pointed out in the previous investigations reported in the literature elsewhere 20 .…”

Section: Resultssupporting

confidence: 87%

“…For a scale-invariant analysis, we adopt a standard normalization scheme 20 , quite relevant for astrophysical description. The corresponding normalized sets of equations are cast as …”

Section: Physical Model Formalismmentioning

confidence: 99%

“…A semi-analytic theoretic study has also been conducted to study the dynamics of the nucleus-acoustic waves, excitable in compact astroobjects in spherical geometry 19 . The influence of relativistic effects, electrostatic confinement pressure, and other realistic factors on the propagation of ion-acoustic waves has been investigated 20 . The instability arising due to the interaction of the electromagnetic waves with the small-frequency longitudinal spin electron-acoustic waves has been investigated 21 .…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Acoustic stability of a self-gravitating cylinder leading to astrostructure formation

Dasgupta

Atteya

Karmakar

2023

Sci Rep

Self Cite

View full text Add to dashboard Cite

We employ a quantum hydrodynamic model to investigate the cylindrical acoustic waves excitable in a gyromagnetoactive self-gravitating viscous cylinder comprised of two-component (electron–ion) plasma. The electronic equation of state incorporates the effect of temperature degeneracy. It reveals an expression for the generalized pressure capable of reproducing a completely degenerate (CD) quantum (Fermi) pressure and a completely non-degenerate (CND) classical (thermal) pressure. A standard cylindrical wave analysis, moderated by the Hankel function, yields a generalized linear (sextic) dispersion relation. The low-frequency analysis is carried out procedurally in four distinct parametric special cases of astronomical importance. It includes the quantum (CD) non-planar (cylindrical), quantum (CD) planar, classical (CND) non-planar (cylindrical), and classical (CND) planar. We examine the multi-parametric influences on the instability dynamics, such as the plasma equilibrium concentration, kinematic viscosity, and so forth. It is found that, in the quantum regime, the concentration plays a major role in the system destabilization. In the classical regime, the plasma temperature plays an important role in both the stabilization and destabilization. It is further seen that the embedded magnetic field influences the instability growth dynamics in different multiparametric regimes extensively, and so forth. The presented analysis can hopefully be applicable to understand the cylindrical acoustic wave dynamics leading actively to the formation of astrophysical gyromagnetic (filamentary) structures in diverse astronomical circumstances in both the classical and quantum regimes of astronomical relevance.

show abstract

Section: Resultssupporting

confidence: 94%

Section: Resultssupporting

confidence: 87%

“…For a scale-invariant analysis, we adopt a standard normalization scheme 20 , quite relevant for astrophysical description. The corresponding normalized sets of equations are cast as …”

Section: Physical Model Formalismmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations