Dispersive effects of Hall electric field in turbulence

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A familiar feature of turbulence in a low collisionality turbulence is an increase in the electric field spectrum, relative to the magnetic field spectrum, at wavenumbers near the reciprocal of the ion inertial scale. This effect is commonly observed in the solar wind. Here we examine this feature n...

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Autores principales: Matthaeus, W.H., Servidio, S., Dmitruk, P.
Formato: Documento de conferencia publishedVersion
Lenguaje:Inglés
Publicado: 2010
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_0094243X_v1216_n_p184_Matthaeus
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling paperaa:paper_0094243X_v1216_n_p184_Matthaeus2023-06-12T16:46:04Z Dispersive effects of Hall electric field in turbulence AIP Conf. Proc. 2010;1216:184-187 Matthaeus, W.H. Servidio, S. Dmitruk, P. A familiar feature of turbulence in a low collisionality turbulence is an increase in the electric field spectrum, relative to the magnetic field spectrum, at wavenumbers near the reciprocal of the ion inertial scale. This effect is commonly observed in the solar wind. Here we examine this feature numerically, using a variety of simulations, including compressible Hall MHD, incompressible Hall MHD, and one-, two-, and three-dimensional cases. A feature of this type is even found in a statistical Hall MHD model with no dissipation. This leads to the conclusion that the only requirement for obtaining this dispersive effect is the Hall term in the generalized Ohm's law. Therefore this observation does not distinguish between whistler and kinetic Alfvén waves, between waves and turbulence, nor even between fluid and kinetic plasma models. © 2010 American Institute of Physics. Fil:Dmitruk, P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2010 info:eu-repo/semantics/conferenceObject info:ar-repo/semantics/documento de conferencia info:eu-repo/semantics/publishedVersion application/pdf eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_0094243X_v1216_n_p184_Matthaeus
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
language Inglés
orig_language_str_mv eng
description A familiar feature of turbulence in a low collisionality turbulence is an increase in the electric field spectrum, relative to the magnetic field spectrum, at wavenumbers near the reciprocal of the ion inertial scale. This effect is commonly observed in the solar wind. Here we examine this feature numerically, using a variety of simulations, including compressible Hall MHD, incompressible Hall MHD, and one-, two-, and three-dimensional cases. A feature of this type is even found in a statistical Hall MHD model with no dissipation. This leads to the conclusion that the only requirement for obtaining this dispersive effect is the Hall term in the generalized Ohm's law. Therefore this observation does not distinguish between whistler and kinetic Alfvén waves, between waves and turbulence, nor even between fluid and kinetic plasma models. © 2010 American Institute of Physics.
format Documento de conferencia
Documento de conferencia
publishedVersion
author Matthaeus, W.H.
Servidio, S.
Dmitruk, P.
spellingShingle Matthaeus, W.H.
Servidio, S.
Dmitruk, P.
Dispersive effects of Hall electric field in turbulence
author_facet Matthaeus, W.H.
Servidio, S.
Dmitruk, P.
author_sort Matthaeus, W.H.
title Dispersive effects of Hall electric field in turbulence
title_short Dispersive effects of Hall electric field in turbulence
title_full Dispersive effects of Hall electric field in turbulence
title_fullStr Dispersive effects of Hall electric field in turbulence
title_full_unstemmed Dispersive effects of Hall electric field in turbulence
title_sort dispersive effects of hall electric field in turbulence
publishDate 2010
url http://hdl.handle.net/20.500.12110/paper_0094243X_v1216_n_p184_Matthaeus
work_keys_str_mv AT matthaeuswh dispersiveeffectsofhallelectricfieldinturbulence
AT servidios dispersiveeffectsofhallelectricfieldinturbulence
AT dmitrukp dispersiveeffectsofhallelectricfieldinturbulence
_version_ 1769810107052326912

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