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
Publicado:	2010
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_0094243X_v1216_n_p184_Matthaeus http://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_0094243X_v1216_n_p184_Matthaeus_oai
Aporte de:	Repositorio Digital de la Universidad de Buenos Aires (UBA) de Universidad de Buenos Aires

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spelling	I28-R145-paper_0094243X_v1216_n_p184_Matthaeus_oai2020-10-19 Matthaeus, W.H. Servidio, S. Dmitruk, P. 2010 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. application/pdf http://hdl.handle.net/20.500.12110/paper_0094243X_v1216_n_p184_Matthaeus info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar AIP Conf. Proc. 2010;1216:184-187 Dispersive effects of Hall electric field in turbulence info:eu-repo/semantics/conferenceObject info:ar-repo/semantics/documento de conferencia info:eu-repo/semantics/publishedVersion http://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_0094243X_v1216_n_p184_Matthaeus_oai
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-145
collection	Repositorio Digital de la Universidad de Buenos Aires (UBA)
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 http://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_0094243X_v1216_n_p184_Matthaeus_oai
work_keys_str_mv	AT matthaeuswh dispersiveeffectsofhallelectricfieldinturbulence AT servidios dispersiveeffectsofhallelectricfieldinturbulence AT dmitrukp dispersiveeffectsofhallelectricfieldinturbulence
_version_	1766026644631322624

Dispersive effects of Hall electric field in turbulence

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