Dynamo action in Hall magnetohydrodynamics

We show that the generally neglected Hall term in the equations for two-fluid magnetohydrodynamics may have a profound effect on α-dynamo action. The new calculation, in addition to subsuming the standard results from the mean field approach, contains a contribution to the α-coefficient entirely due...

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Guardado en:
Detalles Bibliográficos
Publicado: 2002
Materias:
Galaxies: magnetic fields
Magnetic fields
MHD
Stars: magnetic fields
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0004637X_v567_n1II_pL81_Mininni
http://hdl.handle.net/20.500.12110/paper_0004637X_v567_n1II_pL81_Mininni
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_0004637X_v567_n1II_pL81_Mininni
record_format dspace
spelling paper:paper_0004637X_v567_n1II_pL81_Mininni2023-06-08T14:28:44Z Dynamo action in Hall magnetohydrodynamics Galaxies: magnetic fields Magnetic fields MHD Stars: magnetic fields We show that the generally neglected Hall term in the equations for two-fluid magnetohydrodynamics may have a profound effect on α-dynamo action. The new calculation, in addition to subsuming the standard results from the mean field approach, contains a contribution to the α-coefficient entirely due to the Hall current in the microscale. 2002 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0004637X_v567_n1II_pL81_Mininni http://hdl.handle.net/20.500.12110/paper_0004637X_v567_n1II_pL81_Mininni
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Galaxies: magnetic fields
Magnetic fields
MHD
Stars: magnetic fields
spellingShingle Galaxies: magnetic fields
Magnetic fields
MHD
Stars: magnetic fields
Dynamo action in Hall magnetohydrodynamics
topic_facet Galaxies: magnetic fields
Magnetic fields
MHD
Stars: magnetic fields
description We show that the generally neglected Hall term in the equations for two-fluid magnetohydrodynamics may have a profound effect on α-dynamo action. The new calculation, in addition to subsuming the standard results from the mean field approach, contains a contribution to the α-coefficient entirely due to the Hall current in the microscale.
title Dynamo action in Hall magnetohydrodynamics
title_short Dynamo action in Hall magnetohydrodynamics
title_full Dynamo action in Hall magnetohydrodynamics
title_fullStr Dynamo action in Hall magnetohydrodynamics
title_full_unstemmed Dynamo action in Hall magnetohydrodynamics
title_sort dynamo action in hall magnetohydrodynamics
publishDate 2002
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0004637X_v567_n1II_pL81_Mininni
http://hdl.handle.net/20.500.12110/paper_0004637X_v567_n1II_pL81_Mininni
_version_ 1768544847549956096

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