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Title: | Large-amplitude electrostatic fluctuations at the earth’s magnetopause with a vortex-like distribution of hot electrons |
Authors: | Rufai, O.R. Khazanov, G.V. Singh, S.V. Lakhina, G.S. |
Keywords: | Electrostatic solitary waves Large-amplitude electric field Electron acoustic waves Vortex-like velocity distribution Sagdeev pseudopotential technique MMS observations |
Issue Date: | 2022 |
Citation: | Results in Physics, v. 35, https://doi.org/10.1016/j.rinp.2022.105343 |
Abstract: | Large-amplitude electrostatic solitary waves (ESWs) associated with asymmetric magnetic reconnection at the Earth’s magnetopause are studied in a four-component plasma composed of a mixture of the magnetosheath and magnetosphere plasma of a cold, warm and hot electron populations, and background ions. The species are modeled as adiabatic fluids except for the hot electrons which have a kinetic vortex-like velocity distribution. The hybrid model uses the Sagdeev pseudopotential technique to study the arbitrary amplitude ion- and electron-acoustic solitons and double layers. The numerical computations reveal that for the parameters corresponding to magnetosphere side of the ion diffusion region, only slow electron-acoustic solitons and double layer can exist. On the magnetosheath side of the ion diffusion region, only the electron-acoustic/beam solitons can exist. The electric field amplitude of the electrostatic solitary waves (ESWs) predicted by our model are consistent with the Magnetospheric Multiscale (MMS) observations. |
URI: | http://library.iigm.res.in:8080/xmlui/handle/123456798/295 |
Appears in Collections: | UAS_Reprints |
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File | Description | Size | Format | |
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LakhinaGS_etal_ResultsinPhysics_2022.pdf Restricted Access | 859.62 kB | Adobe PDF | View/Open Request a copy |
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