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Title: Effects of electron inertia in collisionless magnetic reconnection

Abstract

We present a study of collisionless magnetic reconnection within the framework of full two-fluid MHD for a completely ionized hydrogen plasma, retaining the effects of the Hall current, electron pressure and electron inertia. We performed 2.5D simulations using a pseudo-spectral code with no dissipative effects. We check that the ideal invariants of the problem are conserved down to round-off errors. Our numerical results confirm that the change in the topology of the magnetic field lines is exclusively due to the presence of electron inertia. The computed reconnection rates remain a fair fraction of the Alfvén velocity, which therefore qualifies as fast reconnection.

Authors:
;  [1];  [2]; ;  [3]
  1. Instituto de Astronomía y Física del Espacio, CC. 67, suc. 28, 1428, Buenos Aires (Argentina)
  2. (Argentina)
  3. Departamento de Física, Facultad de Ciencias Exactas y Naturales, Univrsidad de Buenos Aires, Pabellón I, 1428, Buenos Aires (Argentina)
Publication Date:
OSTI Identifier:
22299840
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 21; Journal Issue: 7; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; COMPUTERIZED SIMULATION; CURRENTS; ELECTRONS; MAGNETIC FIELDS; MAGNETIC RECONNECTION; MAGNETOHYDRODYNAMICS; MOMENT OF INERTIA; PLASMA; PLASMA SIMULATION

Citation Formats

Andrés, Nahuel, E-mail: nandres@iafe.uba.ar, Gómez, Daniel, Departamento de Física, Facultad de Ciencias Exactas y Naturales, Univrsidad de Buenos Aires, Pabellón I, 1428, Buenos Aires, Martin, Luis, and Dmitruk, Pablo. Effects of electron inertia in collisionless magnetic reconnection. United States: N. p., 2014. Web. doi:10.1063/1.4890021.
Andrés, Nahuel, E-mail: nandres@iafe.uba.ar, Gómez, Daniel, Departamento de Física, Facultad de Ciencias Exactas y Naturales, Univrsidad de Buenos Aires, Pabellón I, 1428, Buenos Aires, Martin, Luis, & Dmitruk, Pablo. Effects of electron inertia in collisionless magnetic reconnection. United States. doi:10.1063/1.4890021.
Andrés, Nahuel, E-mail: nandres@iafe.uba.ar, Gómez, Daniel, Departamento de Física, Facultad de Ciencias Exactas y Naturales, Univrsidad de Buenos Aires, Pabellón I, 1428, Buenos Aires, Martin, Luis, and Dmitruk, Pablo. Tue . "Effects of electron inertia in collisionless magnetic reconnection". United States. doi:10.1063/1.4890021.
@article{osti_22299840,
title = {Effects of electron inertia in collisionless magnetic reconnection},
author = {Andrés, Nahuel, E-mail: nandres@iafe.uba.ar and Gómez, Daniel and Departamento de Física, Facultad de Ciencias Exactas y Naturales, Univrsidad de Buenos Aires, Pabellón I, 1428, Buenos Aires and Martin, Luis and Dmitruk, Pablo},
abstractNote = {We present a study of collisionless magnetic reconnection within the framework of full two-fluid MHD for a completely ionized hydrogen plasma, retaining the effects of the Hall current, electron pressure and electron inertia. We performed 2.5D simulations using a pseudo-spectral code with no dissipative effects. We check that the ideal invariants of the problem are conserved down to round-off errors. Our numerical results confirm that the change in the topology of the magnetic field lines is exclusively due to the presence of electron inertia. The computed reconnection rates remain a fair fraction of the Alfvén velocity, which therefore qualifies as fast reconnection.},
doi = {10.1063/1.4890021},
journal = {Physics of Plasmas},
number = 7,
volume = 21,
place = {United States},
year = {Tue Jul 15 00:00:00 EDT 2014},
month = {Tue Jul 15 00:00:00 EDT 2014}
}