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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Detalles Bibliográficos
Autores principales: Mininni, P.D., Gómez, D.O., Mahajan, S.M.
Formato: JOUR
Materias:
Galaxies: magnetic fields
Magnetic fields
MHD
Stars: magnetic fields
Acceso en línea: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 todo:paper_0004637X_v567_n1II_pL81_Mininni
record_format dspace
spelling todo:paper_0004637X_v567_n1II_pL81_Mininni2023-10-03T14:01:50Z Dynamo action in Hall magnetohydrodynamics Mininni, P.D. Gómez, D.O. Mahajan, S.M. 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar 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
Mininni, P.D.
Gómez, D.O.
Mahajan, S.M.
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.
format JOUR
author Mininni, P.D.
Gómez, D.O.
Mahajan, S.M.
author_facet Mininni, P.D.
Gómez, D.O.
Mahajan, S.M.
author_sort Mininni, P.D.
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
url http://hdl.handle.net/20.500.12110/paper_0004637X_v567_n1II_pL81_Mininni
work_keys_str_mv AT mininnipd dynamoactioninhallmagnetohydrodynamics
AT gomezdo dynamoactioninhallmagnetohydrodynamics
AT mahajansm dynamoactioninhallmagnetohydrodynamics
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