Electrostatic waves in a Maxwellian dusty plasma with variable charge on dust particles
Autor(a) principal: | |
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Data de Publicação: | 2006 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/75791 |
Resumo: | A kinetic formulation developed to analyze wave propagation in dusty plasmas, which takes into account the variation of the charge of the dust particles due to inelastic collisions with electrons and ions, is utilized to study the propagation and damping of electrostatic waves with wave number exactly parallel to the external magnetic field and Maxwellian distributions for the electrons and ions in the equilibrium. It is shown that, due to the presence of the dust, the damping of Langmuir waves in the region of large wavelengths is increased as compared to conventional Landau damping. Langmuir waves in the occurrence of collisional charging of dust particles also feature weak damping for small wavelengths, which vanishes if the effect of collisional charging of the dust particles is neglected in the dispersion relation. It is also shown that the damping of ion-acoustic waves is modified by the presence of the dust, and that some damping effect due to the dust particles remains even if the effect of collisional charging of dust particles is neglected in the dispersion relation. |
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Schneider, Ruth de SouzaZiebell, Luiz FernandoJuli, Marcelo Camargo dePereira, Vera Jatenco Silva2013-07-11T02:22:09Z20060103-9733http://hdl.handle.net/10183/75791000554090A kinetic formulation developed to analyze wave propagation in dusty plasmas, which takes into account the variation of the charge of the dust particles due to inelastic collisions with electrons and ions, is utilized to study the propagation and damping of electrostatic waves with wave number exactly parallel to the external magnetic field and Maxwellian distributions for the electrons and ions in the equilibrium. It is shown that, due to the presence of the dust, the damping of Langmuir waves in the region of large wavelengths is increased as compared to conventional Landau damping. Langmuir waves in the occurrence of collisional charging of dust particles also feature weak damping for small wavelengths, which vanishes if the effect of collisional charging of the dust particles is neglected in the dispersion relation. It is also shown that the damping of ion-acoustic waves is modified by the presence of the dust, and that some damping effect due to the dust particles remains even if the effect of collisional charging of dust particles is neglected in the dispersion relation.application/pdfporBrazilian journal of physics. Vol. 36, n. 3A (Sept. 2006), p. 759-771FísicaLangmuir wavesElectrostatic wavesKinetic theoryMagnetized dusty plasmasDust charge fluctuationWave propagationElectrostatic waves in a Maxwellian dusty plasma with variable charge on dust particlesinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/otherinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL000554090.pdf000554090.pdfTexto completo (inglês)application/pdf337983http://www.lume.ufrgs.br/bitstream/10183/75791/1/000554090.pdf45294bde6bd596fcb383b1bd47240d66MD51TEXT000554090.pdf.txt000554090.pdf.txtExtracted Texttext/plain53493http://www.lume.ufrgs.br/bitstream/10183/75791/2/000554090.pdf.txt7cf40e1df4409676a33fe96bf26c5377MD52THUMBNAIL000554090.pdf.jpg000554090.pdf.jpgGenerated Thumbnailimage/jpeg1904http://www.lume.ufrgs.br/bitstream/10183/75791/3/000554090.pdf.jpg6f7cc96e475028cf81ac5eff3b6a4971MD5310183/757912023-09-24 03:39:03.173888oai:www.lume.ufrgs.br:10183/75791Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-09-24T06:39:03Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Electrostatic waves in a Maxwellian dusty plasma with variable charge on dust particles |
title |
Electrostatic waves in a Maxwellian dusty plasma with variable charge on dust particles |
spellingShingle |
Electrostatic waves in a Maxwellian dusty plasma with variable charge on dust particles Schneider, Ruth de Souza Física Langmuir waves Electrostatic waves Kinetic theory Magnetized dusty plasmas Dust charge fluctuation Wave propagation |
title_short |
Electrostatic waves in a Maxwellian dusty plasma with variable charge on dust particles |
title_full |
Electrostatic waves in a Maxwellian dusty plasma with variable charge on dust particles |
title_fullStr |
Electrostatic waves in a Maxwellian dusty plasma with variable charge on dust particles |
title_full_unstemmed |
Electrostatic waves in a Maxwellian dusty plasma with variable charge on dust particles |
title_sort |
Electrostatic waves in a Maxwellian dusty plasma with variable charge on dust particles |
author |
Schneider, Ruth de Souza |
author_facet |
Schneider, Ruth de Souza Ziebell, Luiz Fernando Juli, Marcelo Camargo de Pereira, Vera Jatenco Silva |
author_role |
author |
author2 |
Ziebell, Luiz Fernando Juli, Marcelo Camargo de Pereira, Vera Jatenco Silva |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Schneider, Ruth de Souza Ziebell, Luiz Fernando Juli, Marcelo Camargo de Pereira, Vera Jatenco Silva |
dc.subject.por.fl_str_mv |
Física |
topic |
Física Langmuir waves Electrostatic waves Kinetic theory Magnetized dusty plasmas Dust charge fluctuation Wave propagation |
dc.subject.eng.fl_str_mv |
Langmuir waves Electrostatic waves Kinetic theory Magnetized dusty plasmas Dust charge fluctuation Wave propagation |
description |
A kinetic formulation developed to analyze wave propagation in dusty plasmas, which takes into account the variation of the charge of the dust particles due to inelastic collisions with electrons and ions, is utilized to study the propagation and damping of electrostatic waves with wave number exactly parallel to the external magnetic field and Maxwellian distributions for the electrons and ions in the equilibrium. It is shown that, due to the presence of the dust, the damping of Langmuir waves in the region of large wavelengths is increased as compared to conventional Landau damping. Langmuir waves in the occurrence of collisional charging of dust particles also feature weak damping for small wavelengths, which vanishes if the effect of collisional charging of the dust particles is neglected in the dispersion relation. It is also shown that the damping of ion-acoustic waves is modified by the presence of the dust, and that some damping effect due to the dust particles remains even if the effect of collisional charging of dust particles is neglected in the dispersion relation. |
publishDate |
2006 |
dc.date.issued.fl_str_mv |
2006 |
dc.date.accessioned.fl_str_mv |
2013-07-11T02:22:09Z |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/other |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10183/75791 |
dc.identifier.issn.pt_BR.fl_str_mv |
0103-9733 |
dc.identifier.nrb.pt_BR.fl_str_mv |
000554090 |
identifier_str_mv |
0103-9733 000554090 |
url |
http://hdl.handle.net/10183/75791 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.ispartof.pt_BR.fl_str_mv |
Brazilian journal of physics. Vol. 36, n. 3A (Sept. 2006), p. 759-771 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
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UFRGS |
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Repositório Institucional da UFRGS |
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Repositório Institucional da UFRGS |
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