Shock formation in electron–ion plasmas: mechanism and timing

Detalhes bibliográficos
Autor(a) principal: Stockem, A.
Data de Publicação: 2015
Outros Autores: Bret, A., Fonseca, R. A., Silva, L. O.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10071/8898
Resumo: We analyze the full shock formation process in electron-ion plasmas in theory and simulations. It is accepted that electromagnetic shocks in initially unmagnetized relativistic plasmas are triggered by filamentation instability. However, the transition from the first unstable phase to the quasi-steady shock is still missing. We derive a theoretical model for the shock formation time, taking into account filament merging in the nonlinear phase of the filamentation instability. This process is much slower than in electron-positron pair shocks, and so the shock formation is longer by a factor proportional to root m(i)/m(e) ln (m(i)/m(e)).
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spelling Shock formation in electron–ion plasmas: mechanism and timingInstabilitiesRelativistic processesShock wavesWe analyze the full shock formation process in electron-ion plasmas in theory and simulations. It is accepted that electromagnetic shocks in initially unmagnetized relativistic plasmas are triggered by filamentation instability. However, the transition from the first unstable phase to the quasi-steady shock is still missing. We derive a theoretical model for the shock formation time, taking into account filament merging in the nonlinear phase of the filamentation instability. This process is much slower than in electron-positron pair shocks, and so the shock formation is longer by a factor proportional to root m(i)/m(e) ln (m(i)/m(e)).IOP Publishing2015-05-08T14:13:45Z2015-01-01T00:00:00Z20152019-05-03T12:00:11Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10071/8898eng2041-820510.1088/2041-8205/803/2/L29Stockem, A.Bret, A.Fonseca, R. A.Silva, L. O.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-11-09T17:47:59Zoai:repositorio.iscte-iul.pt:10071/8898Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T22:23:21.039174Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Shock formation in electron–ion plasmas: mechanism and timing
title Shock formation in electron–ion plasmas: mechanism and timing
spellingShingle Shock formation in electron–ion plasmas: mechanism and timing
Stockem, A.
Instabilities
Relativistic processes
Shock waves
title_short Shock formation in electron–ion plasmas: mechanism and timing
title_full Shock formation in electron–ion plasmas: mechanism and timing
title_fullStr Shock formation in electron–ion plasmas: mechanism and timing
title_full_unstemmed Shock formation in electron–ion plasmas: mechanism and timing
title_sort Shock formation in electron–ion plasmas: mechanism and timing
author Stockem, A.
author_facet Stockem, A.
Bret, A.
Fonseca, R. A.
Silva, L. O.
author_role author
author2 Bret, A.
Fonseca, R. A.
Silva, L. O.
author2_role author
author
author
dc.contributor.author.fl_str_mv Stockem, A.
Bret, A.
Fonseca, R. A.
Silva, L. O.
dc.subject.por.fl_str_mv Instabilities
Relativistic processes
Shock waves
topic Instabilities
Relativistic processes
Shock waves
description We analyze the full shock formation process in electron-ion plasmas in theory and simulations. It is accepted that electromagnetic shocks in initially unmagnetized relativistic plasmas are triggered by filamentation instability. However, the transition from the first unstable phase to the quasi-steady shock is still missing. We derive a theoretical model for the shock formation time, taking into account filament merging in the nonlinear phase of the filamentation instability. This process is much slower than in electron-positron pair shocks, and so the shock formation is longer by a factor proportional to root m(i)/m(e) ln (m(i)/m(e)).
publishDate 2015
dc.date.none.fl_str_mv 2015-05-08T14:13:45Z
2015-01-01T00:00:00Z
2015
2019-05-03T12:00:11Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10071/8898
url http://hdl.handle.net/10071/8898
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 2041-8205
10.1088/2041-8205/803/2/L29
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.publisher.none.fl_str_mv IOP Publishing
publisher.none.fl_str_mv IOP Publishing
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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