Diffusion and drift of cosmic rays in highly turbulent magnetic fields

Autores
Candia, Julián Marcelo; Roulet, Esteban
Año de publicación
2004
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We determine numerically the parallel, perpendicular, and antisymmetric diffusion coefficients for charged particles propagating in highly turbulent magnetic fields, by means of extensive Monte Carlo simulations. We propose simple expressions, given in terms of a small set of fitting parameters, to account for the diffusion coefficients as functions of magnetic rigidity and turbulence level, and corresponding to different kinds of turbulence spectra. The results obtained satisfy scaling relations, which make them useful for describing the cosmic ray origin and transport in a variety of different astrophysical environments.
Instituto de Física La Plata
Materia
Astronomía
cosmic rays
magnetic fields
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/3.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/128618

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spelling Diffusion and drift of cosmic rays in highly turbulent magnetic fieldsCandia, Julián MarceloRoulet, EstebanAstronomíacosmic raysmagnetic fieldsWe determine numerically the parallel, perpendicular, and antisymmetric diffusion coefficients for charged particles propagating in highly turbulent magnetic fields, by means of extensive Monte Carlo simulations. We propose simple expressions, given in terms of a small set of fitting parameters, to account for the diffusion coefficients as functions of magnetic rigidity and turbulence level, and corresponding to different kinds of turbulence spectra. The results obtained satisfy scaling relations, which make them useful for describing the cosmic ray origin and transport in a variety of different astrophysical environments.Instituto de Física La Plata2004-10-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/128618enginfo:eu-repo/semantics/altIdentifier/issn/1475-7516info:eu-repo/semantics/altIdentifier/arxiv/astro-ph/0408054info:eu-repo/semantics/altIdentifier/doi/10.1088/1475-7516/2004/10/007info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/3.0/Creative Commons Attribution 3.0 Unported (CC BY 3.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:31:17Zoai:sedici.unlp.edu.ar:10915/128618Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:31:17.714SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Diffusion and drift of cosmic rays in highly turbulent magnetic fields
title Diffusion and drift of cosmic rays in highly turbulent magnetic fields
spellingShingle Diffusion and drift of cosmic rays in highly turbulent magnetic fields
Candia, Julián Marcelo
Astronomía
cosmic rays
magnetic fields
title_short Diffusion and drift of cosmic rays in highly turbulent magnetic fields
title_full Diffusion and drift of cosmic rays in highly turbulent magnetic fields
title_fullStr Diffusion and drift of cosmic rays in highly turbulent magnetic fields
title_full_unstemmed Diffusion and drift of cosmic rays in highly turbulent magnetic fields
title_sort Diffusion and drift of cosmic rays in highly turbulent magnetic fields
dc.creator.none.fl_str_mv Candia, Julián Marcelo
Roulet, Esteban
author Candia, Julián Marcelo
author_facet Candia, Julián Marcelo
Roulet, Esteban
author_role author
author2 Roulet, Esteban
author2_role author
dc.subject.none.fl_str_mv Astronomía
cosmic rays
magnetic fields
topic Astronomía
cosmic rays
magnetic fields
dc.description.none.fl_txt_mv We determine numerically the parallel, perpendicular, and antisymmetric diffusion coefficients for charged particles propagating in highly turbulent magnetic fields, by means of extensive Monte Carlo simulations. We propose simple expressions, given in terms of a small set of fitting parameters, to account for the diffusion coefficients as functions of magnetic rigidity and turbulence level, and corresponding to different kinds of turbulence spectra. The results obtained satisfy scaling relations, which make them useful for describing the cosmic ray origin and transport in a variety of different astrophysical environments.
Instituto de Física La Plata
description We determine numerically the parallel, perpendicular, and antisymmetric diffusion coefficients for charged particles propagating in highly turbulent magnetic fields, by means of extensive Monte Carlo simulations. We propose simple expressions, given in terms of a small set of fitting parameters, to account for the diffusion coefficients as functions of magnetic rigidity and turbulence level, and corresponding to different kinds of turbulence spectra. The results obtained satisfy scaling relations, which make them useful for describing the cosmic ray origin and transport in a variety of different astrophysical environments.
publishDate 2004
dc.date.none.fl_str_mv 2004-10-08
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/128618
url http://sedici.unlp.edu.ar/handle/10915/128618
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/1475-7516
info:eu-repo/semantics/altIdentifier/arxiv/astro-ph/0408054
info:eu-repo/semantics/altIdentifier/doi/10.1088/1475-7516/2004/10/007
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/3.0/
Creative Commons Attribution 3.0 Unported (CC BY 3.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/3.0/
Creative Commons Attribution 3.0 Unported (CC BY 3.0)
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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