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Dust-ion-acoustic shock waves in Saturn's magnetosphere with regularized kappa-distributed electrons.

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Τίτλος: Dust-ion-acoustic shock waves in Saturn's magnetosphere with regularized kappa-distributed electrons.
Συγγραφείς: Liu, Yong1 (AUTHOR) yliu1886@live.cn
Πηγή: European Physical Journal D (EPJ D). May2026, Vol. 80 Issue 5, p1-9. 9p.
Θεματικοί όροι: *Dusty plasmas, *Magnetosphere, *Distribution (Probability theory), *Plasma physics, *Electrostatics, *Burgers' equation, *Plasma waves
Περίληψη: Dust-ion-acoustic shock waves (DIASWs) have been investigated in an unmagnetized dusty plasma composed of regularized kappa-distributed electrons, warm ions, and negatively charged stationary dust particles where dust charge fluctuation is considered. The nonlinear Burgers-type equation describing the properties of DIASWs is derived using the reductive perturbation technique. The effects of regularized kappa-distributed electrons on DIASWs are analyzed with parameters relevant to Saturn's magnetosphere. It is found that the fundamental characteristics of DIASWs are significantly modified by the spectral index κ , the cutoff parameter α , and the ion temperature. Both positive and negative potentials can exist, depending on the values of κ and α. The findings of this investigation may help in understanding the electrostatic structures observed in Saturn's magnetosphere. Properties of dust-ion-acoustic shock waves. [ABSTRACT FROM AUTHOR]
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