Hydromagnetic equations for collisionless plasmas in strong magnetic fields

The Chew, Goldberger & Low equations are a one-fluid system for the thermodynamic variables of the ions that are coupled to the electrons only through the electromagnetic variables. The magnitude of these variables in a collisionless plasma is re-examined in the present paper and it is found tha...

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Autor principal:	Duhau, S.
Formato:	JOUR
Materias:	ELECTROMAGNETIC WAVES MAGNETIC FIELD EFFECTS HYDROMAGNETIC EQUATIONS PLASMAS
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_00223778_v32_n1_p23_Duhau
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_00223778_v32_n1_p23_Duhau
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spelling	todo:paper_00223778_v32_n1_p23_Duhau2023-10-03T14:32:30Z Hydromagnetic equations for collisionless plasmas in strong magnetic fields Duhau, S. ELECTROMAGNETIC WAVES MAGNETIC FIELD EFFECTS HYDROMAGNETIC EQUATIONS PLASMAS The Chew, Goldberger & Low equations are a one-fluid system for the thermodynamic variables of the ions that are coupled to the electrons only through the electromagnetic variables. The magnitude of these variables in a collisionless plasma is re-examined in the present paper and it is found that, in the limit in which the Larmor radius and the electron-to-ion mass ratio are both zero, the current, in the plane normal to the magnetic field, is entirely transported by the electrons in the reference frame that moves with the bulk velocity. The first-order electric field contributes to the ion equation of motion with a zero-order term that couples the thermodynamic variables of both species. So the energy equation of the electrons must now be included in the equation set; to close this equation, a simple mathematical representation of the measured quasi-stationary velocity distribution function of this species is used. A two-fluid equation system in the limit in which the Larmor radius and the electron-to-ion mass ratio are both zero is then found. © 1984, Cambridge University Press. All rights reserved. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00223778_v32_n1_p23_Duhau
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	ELECTROMAGNETIC WAVES MAGNETIC FIELD EFFECTS HYDROMAGNETIC EQUATIONS PLASMAS
spellingShingle	ELECTROMAGNETIC WAVES MAGNETIC FIELD EFFECTS HYDROMAGNETIC EQUATIONS PLASMAS Duhau, S. Hydromagnetic equations for collisionless plasmas in strong magnetic fields
topic_facet	ELECTROMAGNETIC WAVES MAGNETIC FIELD EFFECTS HYDROMAGNETIC EQUATIONS PLASMAS
description	The Chew, Goldberger & Low equations are a one-fluid system for the thermodynamic variables of the ions that are coupled to the electrons only through the electromagnetic variables. The magnitude of these variables in a collisionless plasma is re-examined in the present paper and it is found that, in the limit in which the Larmor radius and the electron-to-ion mass ratio are both zero, the current, in the plane normal to the magnetic field, is entirely transported by the electrons in the reference frame that moves with the bulk velocity. The first-order electric field contributes to the ion equation of motion with a zero-order term that couples the thermodynamic variables of both species. So the energy equation of the electrons must now be included in the equation set; to close this equation, a simple mathematical representation of the measured quasi-stationary velocity distribution function of this species is used. A two-fluid equation system in the limit in which the Larmor radius and the electron-to-ion mass ratio are both zero is then found. © 1984, Cambridge University Press. All rights reserved.
format	JOUR
author	Duhau, S.
author_facet	Duhau, S.
author_sort	Duhau, S.
title	Hydromagnetic equations for collisionless plasmas in strong magnetic fields
title_short	Hydromagnetic equations for collisionless plasmas in strong magnetic fields
title_full	Hydromagnetic equations for collisionless plasmas in strong magnetic fields
title_fullStr	Hydromagnetic equations for collisionless plasmas in strong magnetic fields
title_full_unstemmed	Hydromagnetic equations for collisionless plasmas in strong magnetic fields
title_sort	hydromagnetic equations for collisionless plasmas in strong magnetic fields
url	http://hdl.handle.net/20.500.12110/paper_00223778_v32_n1_p23_Duhau
work_keys_str_mv	AT duhaus hydromagneticequationsforcollisionlessplasmasinstrongmagneticfields
_version_	1782028853452996608

Hydromagnetic equations for collisionless plasmas in strong magnetic fields

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