03 خرداد 1403
عليرضا عبدي كيان

علیرضا عبدی کیان

مرتبه علمی: دانشیار
نشانی:
تحصیلات: دکترای تخصصی / فیزیک نظری (پلاسما)
تلفن:
دانشکده: دانشکده علوم پایه

مشخصات پژوهش

عنوان
Nonlinear structure and growth rate of solitary waves for extended Zakharov-Kuznetsov equation in plasma having (r, q) distribution electrons
نوع پژوهش مقاله چاپ شده
کلیدواژه‌ها
ion acoustic waves, non-maxwellian plasmas, solitons, shock waves, cnoidal waves, magnetized plasma and extended Zakharov Kuznetsov equation
سال
2024
مجله Physica Scripta
پژوهشگران علیرضا عبدی کیان

چکیده

The Reductive Perturbation Technique (RPT) is used to investigate ion acoustic waves (IAWs) in magnetized plasmasmade up of electrons obeying the generalized formof (r, q) distribution. The analysis makes use of the Extended Zakharov-Kuznetsov (EZK) equation and the hydrodynamic theory of plasmas. The study investigates the effects of electron flatness (r) at low energy and superthermal (q) at high energy on the characteristics of IAWs, and the solutions to the EZK equation are plotted for different values of the plasma characteristics, such as the total ion cyclotron frequency, the ion to electron temperature ratio, and the ion-specific heat. The research goes into great detail to estimate the instability threshold and growth rate of these waves by applying a small-k perturbation technique. Overall, this investigation contributes to the better understanding of ion acoustic structures in space plasmas.