dc.contributor.author | Rufai, Odutayo Raji | |
dc.date.accessioned | 2023-02-03T12:45:46Z | |
dc.date.available | 2023-02-03T12:45:46Z | |
dc.date.issued | 2019 | |
dc.identifier.citation | Rufai, O.R. (2019). Periodic low-frequency electric field structures in a magnetized non-thermal auroral plasma. Heliyon, 5(7), e01976. https://doi.org/10.1016/j.heliyon.2019.e01976 | en_US |
dc.identifier.issn | 2405-8440 | |
dc.identifier.uri | https://doi.org/10.1016/j.heliyon.2019.e01976 | |
dc.identifier.uri | http://hdl.handle.net/10566/8345 | |
dc.description.abstract | The theoretical explanation of electric field structures associated with density depletion in the Earth’s upper
ionosphere is presented. Using the quasi-neutrality hypothesis, the effect of excess energetic electron species
is studied on the evolution of nonlinear low-frequency ion-cyclotron and ion-acoustic waves in a magnetized
auroral plasma. The dynamics of the cold ion beam is governed by the fluid equations and the electron is treated
as energetic species with non-thermal density distribution. Numerical computations appear in a series of periodic
oscillations, such as spiky, sawtooth and sinusoidal waveforms. The present model can generate up to 18 mV/m
electric field amplitude, which is in the range of the FREJA satellite measurements in the auroral acceleration
region. | en_US |
dc.language.iso | en | en_US |
dc.publisher | Elsevier | en_US |
dc.subject | Geophysics | en_US |
dc.subject | Physics | en_US |
dc.subject | Low-frequency | en_US |
dc.subject | Mathematics | en_US |
dc.subject | Auroral plasma | en_US |
dc.title | Periodic low-frequency electric field structures in a magnetized non-thermal auroral plasma | en_US |
dc.type | Article | en_US |