An alternative explanation for the density depletions observed by Freja and Viking satellites

In this paper, we have studied the linear and nonlinear propagation of ion acoustic waves in the presence of electrons that follow the generalized (r,q) distribution. It has been shown that for positive values of r, which correspond to a flat-topped electron velocity distribution, the nonlinear ion...

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Main Authors: K. H. Shah, M. N. S. Qureshi, W. Masood, H. A. Shah
Format: Article
Language:English
Published: AIP Publishing LLC 2018-08-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/1.5040944
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author K. H. Shah
M. N. S. Qureshi
W. Masood
H. A. Shah
author_facet K. H. Shah
M. N. S. Qureshi
W. Masood
H. A. Shah
author_sort K. H. Shah
collection DOAJ
description In this paper, we have studied the linear and nonlinear propagation of ion acoustic waves in the presence of electrons that follow the generalized (r,q) distribution. It has been shown that for positive values of r, which correspond to a flat-topped electron velocity distribution, the nonlinear ion acoustic waves admit rarefactive solitary structures or density depletions. It has been shown that the generalized (r,q) distribution function provides another way to explicate the density depletions observed by Freja and Viking satellites previously explained by proposing Cairns distribution function.
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spelling doaj.art-8c06f6f4ce294c9585dd0978ee079b342022-12-22T01:07:52ZengAIP Publishing LLCAIP Advances2158-32262018-08-0188085010085010-1210.1063/1.5040944031808ADVAn alternative explanation for the density depletions observed by Freja and Viking satellitesK. H. Shah0M. N. S. Qureshi1W. Masood2H. A. Shah3Department of Physics, FC College (A Chartered University), Lahore 54600, PakistanDepartment of Physics, GC University, Lahore 54000, PakistanThe Abdus Salam International Centre for Theoretical Physics, Strada Costiera 11, 34151 Trieste, ItalyDepartment of Physics, FC College (A Chartered University), Lahore 54600, PakistanIn this paper, we have studied the linear and nonlinear propagation of ion acoustic waves in the presence of electrons that follow the generalized (r,q) distribution. It has been shown that for positive values of r, which correspond to a flat-topped electron velocity distribution, the nonlinear ion acoustic waves admit rarefactive solitary structures or density depletions. It has been shown that the generalized (r,q) distribution function provides another way to explicate the density depletions observed by Freja and Viking satellites previously explained by proposing Cairns distribution function.http://dx.doi.org/10.1063/1.5040944
spellingShingle K. H. Shah
M. N. S. Qureshi
W. Masood
H. A. Shah
An alternative explanation for the density depletions observed by Freja and Viking satellites
AIP Advances
title An alternative explanation for the density depletions observed by Freja and Viking satellites
title_full An alternative explanation for the density depletions observed by Freja and Viking satellites
title_fullStr An alternative explanation for the density depletions observed by Freja and Viking satellites
title_full_unstemmed An alternative explanation for the density depletions observed by Freja and Viking satellites
title_short An alternative explanation for the density depletions observed by Freja and Viking satellites
title_sort alternative explanation for the density depletions observed by freja and viking satellites
url http://dx.doi.org/10.1063/1.5040944
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