Ion-Acoustic Density Hump Solitons in (r,q) Distributed Plasmasusing Python

Muhammad Nouman Sarwar Qureshi ()
Additional contact information
Muhammad Nouman Sarwar Qureshi: Department of Physics, GC University, Lahore 54000, Pakistan

International Journal of Innovations in Science & Technology, 2025, vol. 7, issue 1, 313-321

Abstract: Electron Velocity Distributions (EVDs) with a flat top at low energy and/or an enhanced tail at high energies are commonly observed in Earth's magnetosphere and solar wind. Noteworthy is the fact that only generalized (𝑟,𝑞)distribution with two spectral indices fit such observed flat top distributions, since at low energies neither kappa nor Maxwellian distribution can fit the observed EVDs. In the limiting cases, 𝑟=0,𝑞→∞and 𝑟=0,𝑞=(𝜅+1); (𝑟,𝑞)distribution reduces the Maxwellian and kappa distributions, respectively. In the current fluid model, for the first time, electrons are treated as (𝑟,𝑞)distributed and Sagdeev potential is derived for fully nonlinear fluid equations for ion-acoustic waves and obtained density humps to interpret the observations. We analyzed the properties of solitary structures using observed plasma parameters and valuesof 𝑟and 𝑞indices that matched the reported values. We found that flat top distribution supports the density hump solitons with larger amplitude

Keywords: Non-Maxwellian Distribution; (𝑟,𝑞)Distribution; Electrostatic Solitary Waves; Solitons; Flat-Topped Distribution; Ion-AcousticWaves (search for similar items in EconPapers)
Date: 2025
References: Add references at CitEc
Citations:

Downloads: (external link)
https://journal.50sea.com/index.php/IJIST/article/view/1189/1730 (application/pdf)
https://journal.50sea.com/index.php/IJIST/article/view/1189 (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:abq:ijist1:v:7:y:2025:i:1:p:313-321

Access Statistics for this article

International Journal of Innovations in Science & Technology is currently edited by Prof. Dr. Syed Amer Mahmood

More articles in International Journal of Innovations in Science & Technology from 50sea
Bibliographic data for series maintained by Iqra Nazeer ().