Waves, Coriolis force and the dynamo effect

Autores
Mahajan, Swadesh M.; Mininni, Pablo Daniel; Gomez, Daniel Osvaldo
Año de publicación
2005
Idioma
español castellano
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Dynamo activity caused by waves in a rotating magnetoplasma is investigated. In astrophysical environments such as accretion disks and at sufficiently small spatial scales, the Hall effect is likely to play an important role. It is shown that a combination of the Coriolis force and Hall effect can produce a finite α-effect by generating net helicity at small scales. The shear/ion-cyclotron normal mode of the Hall plasma is the dominant contributor to the dynamo action for short-scale motions.
Fil: Mahajan, Swadesh M.. University of Texas at Austin; Estados Unidos
Fil: Mininni, Pablo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
Fil: Gomez, Daniel Osvaldo. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Materia
magnetoplasma
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/22056
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Waves, Coriolis force and the dynamo effectMahajan, Swadesh M.Mininni, Pablo DanielGomez, Daniel Osvaldomagnetoplasmahttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Dynamo activity caused by waves in a rotating magnetoplasma is investigated. In astrophysical environments such as accretion disks and at sufficiently small spatial scales, the Hall effect is likely to play an important role. It is shown that a combination of the Coriolis force and Hall effect can produce a finite α-effect by generating net helicity at small scales. The shear/ion-cyclotron normal mode of the Hall plasma is the dominant contributor to the dynamo action for short-scale motions.Fil: Mahajan, Swadesh M.. University of Texas at Austin; Estados UnidosFil: Mininni, Pablo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; ArgentinaFil: Gomez, Daniel Osvaldo. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; ArgentinaIOP Publishing2005-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/22056Mahajan, Swadesh M.; Mininni, Pablo Daniel; Gomez, Daniel Osvaldo; Waves, Coriolis force and the dynamo effect; IOP Publishing; Astrophysical Journal; 619; 2; 12-2005; 1014-10180004-637XCONICET DigitalCONICETspainfo:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1086/426533info:eu-repo/semantics/altIdentifier/doi/10.1086/426533info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/astro-ph/0410276info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:42:02Zoai:ri.conicet.gov.ar:11336/22056instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:42:02.693CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Waves, Coriolis force and the dynamo effect
title Waves, Coriolis force and the dynamo effect
spellingShingle Waves, Coriolis force and the dynamo effect
Mahajan, Swadesh M.
magnetoplasma
title_short Waves, Coriolis force and the dynamo effect
title_full Waves, Coriolis force and the dynamo effect
title_fullStr Waves, Coriolis force and the dynamo effect
title_full_unstemmed Waves, Coriolis force and the dynamo effect
title_sort Waves, Coriolis force and the dynamo effect
dc.creator.none.fl_str_mv Mahajan, Swadesh M.
Mininni, Pablo Daniel
Gomez, Daniel Osvaldo
author Mahajan, Swadesh M.
author_facet Mahajan, Swadesh M.
Mininni, Pablo Daniel
Gomez, Daniel Osvaldo
author_role author
author2 Mininni, Pablo Daniel
Gomez, Daniel Osvaldo
author2_role author
author
dc.subject.none.fl_str_mv magnetoplasma
topic magnetoplasma
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Dynamo activity caused by waves in a rotating magnetoplasma is investigated. In astrophysical environments such as accretion disks and at sufficiently small spatial scales, the Hall effect is likely to play an important role. It is shown that a combination of the Coriolis force and Hall effect can produce a finite α-effect by generating net helicity at small scales. The shear/ion-cyclotron normal mode of the Hall plasma is the dominant contributor to the dynamo action for short-scale motions.
Fil: Mahajan, Swadesh M.. University of Texas at Austin; Estados Unidos
Fil: Mininni, Pablo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
Fil: Gomez, Daniel Osvaldo. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
description Dynamo activity caused by waves in a rotating magnetoplasma is investigated. In astrophysical environments such as accretion disks and at sufficiently small spatial scales, the Hall effect is likely to play an important role. It is shown that a combination of the Coriolis force and Hall effect can produce a finite α-effect by generating net helicity at small scales. The shear/ion-cyclotron normal mode of the Hall plasma is the dominant contributor to the dynamo action for short-scale motions.
publishDate 2005
dc.date.none.fl_str_mv 2005-12
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
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://hdl.handle.net/11336/22056
Mahajan, Swadesh M.; Mininni, Pablo Daniel; Gomez, Daniel Osvaldo; Waves, Coriolis force and the dynamo effect; IOP Publishing; Astrophysical Journal; 619; 2; 12-2005; 1014-1018
0004-637X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/22056
identifier_str_mv Mahajan, Swadesh M.; Mininni, Pablo Daniel; Gomez, Daniel Osvaldo; Waves, Coriolis force and the dynamo effect; IOP Publishing; Astrophysical Journal; 619; 2; 12-2005; 1014-1018
0004-637X
CONICET Digital
CONICET
dc.language.none.fl_str_mv spa
language spa
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1086/426533
info:eu-repo/semantics/altIdentifier/doi/10.1086/426533
info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/astro-ph/0410276
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv IOP Publishing
publisher.none.fl_str_mv IOP Publishing
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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