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Nonlinear excitations for the positron acoustic waves in auroral acceleration regions.

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Title: Nonlinear excitations for the positron acoustic waves in auroral acceleration regions.
Authors: Saha, Asit1 asit_saha123@rediffmail.com, Ali, Rustam1,2 rustamali24@gmail.com, Chatterjee, Prasanta2 prasantachatterjee1@rediffmail.com
Source: Advances in Space Research. Sep2017, Vol. 60 Issue 6, p1220-1236. 17p.
Subjects: Sound waves, Positron emission, Aurora spectra, Nonlinear theories, Excitation spectrum
Abstract: Positron acoustic waves (PAWs) in an unmagnetized electron-positron-ion (e-p-i) plasma consisting of mobile cold positrons, immobile positive ions, q -nonextensive distributed electrons and hot positrons are studied. The standard reductive perturbation technique (RPT) is applied to derive the Kurteweg-de Vries (KdV) and modified Kurteweg-de Vries (mKdV) equations for PAWs. Variations of the total energy of the conservative systems corresponding to the KdV and mKdV equations are presented. Using numerical simulations, effect of the nonextensive parameter ( q ), temperature ratio ( σ ) of electrons to hot positrons and speed ( U ) of the traveling wave are discussed on the positron acoustic solitary wave solutions of the KdV and mKdV equations. Considering an external periodic perturbation, the perturbed dynamical systems corresponding to the KdV and mKdV equations are analyzed by employing phase orbit analysis, Poincare section and Lyapunov exponent. The frequency ( ω ) of the external periodic perturbation plays the role of the switching parameter in chaotic motions of the perturbed PAWs through quasiperiodic route to chaos. This work may be useful to understand the qualitative changes in the dynamics of nonlinear perturbations in auroral acceleration regions. [ABSTRACT FROM AUTHOR]
Copyright of Advances in Space Research is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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Header DbId: egs
DbLabel: Engineering Source
An: 124611205
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PubTypeId: academicJournal
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: Nonlinear excitations for the positron acoustic waves in auroral acceleration regions.
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  Label: Authors
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  Data: <searchLink fieldCode="AR" term="%22Saha%2C+Asit%22">Saha, Asit</searchLink><relatesTo>1</relatesTo><i> asit_saha123@rediffmail.com</i><br /><searchLink fieldCode="AR" term="%22Ali%2C+Rustam%22">Ali, Rustam</searchLink><relatesTo>1,2</relatesTo><i> rustamali24@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Chatterjee%2C+Prasanta%22">Chatterjee, Prasanta</searchLink><relatesTo>2</relatesTo><i> prasantachatterjee1@rediffmail.com</i>
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  Data: <searchLink fieldCode="JN" term="%22Advances+in+Space+Research%22">Advances in Space Research</searchLink>. Sep2017, Vol. 60 Issue 6, p1220-1236. 17p.
– Name: Subject
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  Data: <searchLink fieldCode="DE" term="%22Sound+waves%22">Sound waves</searchLink><br /><searchLink fieldCode="DE" term="%22Positron+emission%22">Positron emission</searchLink><br /><searchLink fieldCode="DE" term="%22Aurora+spectra%22">Aurora spectra</searchLink><br /><searchLink fieldCode="DE" term="%22Nonlinear+theories%22">Nonlinear theories</searchLink><br /><searchLink fieldCode="DE" term="%22Excitation+spectrum%22">Excitation spectrum</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Positron acoustic waves (PAWs) in an unmagnetized electron-positron-ion (e-p-i) plasma consisting of mobile cold positrons, immobile positive ions, q -nonextensive distributed electrons and hot positrons are studied. The standard reductive perturbation technique (RPT) is applied to derive the Kurteweg-de Vries (KdV) and modified Kurteweg-de Vries (mKdV) equations for PAWs. Variations of the total energy of the conservative systems corresponding to the KdV and mKdV equations are presented. Using numerical simulations, effect of the nonextensive parameter ( q ), temperature ratio ( σ ) of electrons to hot positrons and speed ( U ) of the traveling wave are discussed on the positron acoustic solitary wave solutions of the KdV and mKdV equations. Considering an external periodic perturbation, the perturbed dynamical systems corresponding to the KdV and mKdV equations are analyzed by employing phase orbit analysis, Poincare section and Lyapunov exponent. The frequency ( ω ) of the external periodic perturbation plays the role of the switching parameter in chaotic motions of the perturbed PAWs through quasiperiodic route to chaos. This work may be useful to understand the qualitative changes in the dynamics of nonlinear perturbations in auroral acceleration regions. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Advances in Space Research is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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    Identifiers:
      – Type: doi
        Value: 10.1016/j.asr.2017.06.012
    Languages:
      – Code: eng
        Text: English
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      Pagination:
        PageCount: 17
        StartPage: 1220
    Subjects:
      – SubjectFull: Sound waves
        Type: general
      – SubjectFull: Positron emission
        Type: general
      – SubjectFull: Aurora spectra
        Type: general
      – SubjectFull: Nonlinear theories
        Type: general
      – SubjectFull: Excitation spectrum
        Type: general
    Titles:
      – TitleFull: Nonlinear excitations for the positron acoustic waves in auroral acceleration regions.
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            NameFull: Saha, Asit
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            NameFull: Ali, Rustam
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            NameFull: Chatterjee, Prasanta
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            – D: 15
              M: 09
              Text: Sep2017
              Type: published
              Y: 2017
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              Value: 60
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            – TitleFull: Advances in Space Research
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