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Title: | Nonlinear low frequency electrostatic structures in a magnetized two-component auroral plasma |
Authors: | Rufai, O.R. Bharuthram, R. Singh, S.V. Lakhina, G.S. |
Keywords: | Plasmas Auroral plasmas Supersolitons Ion-acoustic solitons Adiabatic warm ions fluid Nonthermal electrons Sagdeev pseudopotential technique |
Issue Date: | 2016 |
Citation: | Physics of Plasmas, 23, 032309, doi: 10.1063/1.4944669 |
Abstract: | Finite amplitude nonlinear ion-acoustic solitons, double layers, and supersolitons in a magnetized two-component plasma composed of adiabatic warm ions fluid and energetic nonthermal electrons are studied by employing the Sagdeev pseudopotential technique and assuming the charge neutrality condition at equilibrium. The model generates supersoliton structures at supersonic Mach numbers regime in addition to solitons and double layers, whereas in the unmagnetized two-component plasma case only, soliton and double layer solutions can be obtained. Further investigation revealed that wave obliqueness plays a critical role for the evolution of supersoliton structures in magnetized two-component plasmas. In addition, the effect of ion temperature and nonthermal energetic electron tends to decrease the speed of oscillation of the nonlinear electrostatic structures. The present theoretical results are compared with Viking satellite observations. |
URI: | http://localhost:8080/xmlui/handle/123456789/1024 |
Appears in Collections: | UAS_Reprints |
Files in This Item:
File | Description | Size | Format | |
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SinghSV_LakhinaGS_etal_PhyPlasmas_2016.pdf | 2.77 MB | Adobe PDF | View/Open |
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