Asymmetric solar wind electron superthermal distributions
Autor(a) principal: | |
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Data de Publicação: | 2008 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/108965 |
Resumo: | Electron distributions with various degrees of asymmetry associated with the energetic tail population are commonly detected in the solar wind near 1 AU. By numerically solving one-dimensional electrostatic weak turbulence equations the present paper demonstrates that a wide variety of asymmetric energetic tail distributionsmay result. It is found that a wide variety of asymmetric tail formation becomes possible if one posits that the solar wind electrons are initially composed of thermal core plus field-aligned counterstreaming beams, instead of the customary thermal population plus a single beam. It is shown that the resulting nonlinear wave-wave and wave-particle interactions lead to asymmetric nonthermal tails. It is found that the delicate difference in the average beam speeds associated with the forward versus backward components is responsible for the generation of asymmetry in the energetic tail. |
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Gaelzer, RudiZiebell, Luiz FernandoFigueroa Viñas, AdolfoYoon, Peter H.Ryu, Chang-Mo2015-01-15T02:15:07Z20080004-637Xhttp://hdl.handle.net/10183/108965000632451Electron distributions with various degrees of asymmetry associated with the energetic tail population are commonly detected in the solar wind near 1 AU. By numerically solving one-dimensional electrostatic weak turbulence equations the present paper demonstrates that a wide variety of asymmetric energetic tail distributionsmay result. It is found that a wide variety of asymmetric tail formation becomes possible if one posits that the solar wind electrons are initially composed of thermal core plus field-aligned counterstreaming beams, instead of the customary thermal population plus a single beam. It is shown that the resulting nonlinear wave-wave and wave-particle interactions lead to asymmetric nonthermal tails. It is found that the delicate difference in the average beam speeds associated with the forward versus backward components is responsible for the generation of asymmetry in the energetic tail.application/pdfengThe astrophysical journal. Bristol. Vol. 677, no. 1, pt. 1 (Apr. 2008), p. 676-682AstrofísicaVento solarDistribuições supertermaisMeio interplanetárioInterplanetary mediumSolar windAsymmetric solar wind electron superthermal distributionsEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL000632451.pdf000632451.pdfTexto completo (inglês)application/pdf391745http://www.lume.ufrgs.br/bitstream/10183/108965/1/000632451.pdf5307f24d29f68e910595bf11c534cd83MD51TEXT000632451.pdf.txt000632451.pdf.txtExtracted Texttext/plain33657http://www.lume.ufrgs.br/bitstream/10183/108965/2/000632451.pdf.txt1f20bed7a1fc0cfed28f91620d44791aMD52THUMBNAIL000632451.pdf.jpg000632451.pdf.jpgGenerated Thumbnailimage/jpeg1746http://www.lume.ufrgs.br/bitstream/10183/108965/3/000632451.pdf.jpg922ed82f558aed669d5a8d10e45fdf5fMD5310183/1089652023-09-24 03:38:27.443843oai:www.lume.ufrgs.br:10183/108965Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-09-24T06:38:27Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Asymmetric solar wind electron superthermal distributions |
title |
Asymmetric solar wind electron superthermal distributions |
spellingShingle |
Asymmetric solar wind electron superthermal distributions Gaelzer, Rudi Astrofísica Vento solar Distribuições supertermais Meio interplanetário Interplanetary medium Solar wind |
title_short |
Asymmetric solar wind electron superthermal distributions |
title_full |
Asymmetric solar wind electron superthermal distributions |
title_fullStr |
Asymmetric solar wind electron superthermal distributions |
title_full_unstemmed |
Asymmetric solar wind electron superthermal distributions |
title_sort |
Asymmetric solar wind electron superthermal distributions |
author |
Gaelzer, Rudi |
author_facet |
Gaelzer, Rudi Ziebell, Luiz Fernando Figueroa Viñas, Adolfo Yoon, Peter H. Ryu, Chang-Mo |
author_role |
author |
author2 |
Ziebell, Luiz Fernando Figueroa Viñas, Adolfo Yoon, Peter H. Ryu, Chang-Mo |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Gaelzer, Rudi Ziebell, Luiz Fernando Figueroa Viñas, Adolfo Yoon, Peter H. Ryu, Chang-Mo |
dc.subject.por.fl_str_mv |
Astrofísica Vento solar Distribuições supertermais Meio interplanetário |
topic |
Astrofísica Vento solar Distribuições supertermais Meio interplanetário Interplanetary medium Solar wind |
dc.subject.eng.fl_str_mv |
Interplanetary medium Solar wind |
description |
Electron distributions with various degrees of asymmetry associated with the energetic tail population are commonly detected in the solar wind near 1 AU. By numerically solving one-dimensional electrostatic weak turbulence equations the present paper demonstrates that a wide variety of asymmetric energetic tail distributionsmay result. It is found that a wide variety of asymmetric tail formation becomes possible if one posits that the solar wind electrons are initially composed of thermal core plus field-aligned counterstreaming beams, instead of the customary thermal population plus a single beam. It is shown that the resulting nonlinear wave-wave and wave-particle interactions lead to asymmetric nonthermal tails. It is found that the delicate difference in the average beam speeds associated with the forward versus backward components is responsible for the generation of asymmetry in the energetic tail. |
publishDate |
2008 |
dc.date.issued.fl_str_mv |
2008 |
dc.date.accessioned.fl_str_mv |
2015-01-15T02:15:07Z |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
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/10183/108965 |
dc.identifier.issn.pt_BR.fl_str_mv |
0004-637X |
dc.identifier.nrb.pt_BR.fl_str_mv |
000632451 |
identifier_str_mv |
0004-637X 000632451 |
url |
http://hdl.handle.net/10183/108965 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
The astrophysical journal. Bristol. Vol. 677, no. 1, pt. 1 (Apr. 2008), p. 676-682 |
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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