Nonlinear low frequency wave phenomena in space plasmas

dc.contributor.advisorBharuthram, R.
dc.contributor.advisorSingh, S.V.
dc.contributor.advisorLakhina, G.S.
dc.contributor.authorRaji, Rufai Odutayo
dc.date.accessioned2015-03-25T14:10:18Z
dc.date.accessioned2024-05-14T13:26:38Z
dc.date.available2015-03-25T14:10:18Z
dc.date.available2024-05-14T13:26:38Z
dc.date.issued2013
dc.descriptionPhilosophiae Doctor - PhDen_US
dc.description.abstractIn this thesis, using multispecies fluid plasma models, nonlinear electrostatic solitary wave fluctuations will be investigated in magnetized plasmas. The different models used for the investigation will be guided by the satellite observations in different regions of the Earth magnetosphere. These investigations will enable us to attempt theoretical explanations for the nonlinear potential structures observed in the satellite data. Multispecies plasma consisting of cool and hot electrons with Maxwellian distributions and fluid ions will be considered to study low frequency solitons. The ions will be considered as magnetized. The study will be extended to include magnetized oxygen ions. The model will be modified for regions of the magnetosphere consisting of two ions having Maxwellian distributions and magnetized electrons. The nonthermal distributions of energetic hot electrons and the Maxwellian distributions of cool electrons with magnetized cold ions fluid will also be considered. For all the models, the effect of ion and electron densities, temperatures, magnetic field strength and propagation angle will be studied during the investigation of soliton structures. In all the above mentioned studies, arbitrary amplitude theory is carried out by the Sagdeev pseudo-potential method. Further investigations on the charateristics and existence domains of the solitons is found both analytically and numerically, using satellite data where applicableen_US
dc.identifier.urihttps://hdl.handle.net/10566/15011
dc.language.isoenen_US
dc.publisherUniversity of the Western Capeen_US
dc.rights.holderUniversity of the Western Capeen_US
dc.subjectSpace plasmasen_US
dc.subjectPlasma electrodynamicsen_US
dc.subjectQuantum electrodynamicsen_US
dc.titleNonlinear low frequency wave phenomena in space plasmasen_US
dc.typeThesisen_US

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