Influence of the Hall effect and electron inertia in collisionless magnetic reconnection
We study the role of the Hall current and electron inertia in collisionless magnetic reconnection within the framework of full two-fluid MHD. At spatial scales smaller than the electron inertial length, a topological change of magnetic field lines exclusively due to the electron inertia becomes poss...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_1070664X_v23_n2_p_Andres |
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todo:paper_1070664X_v23_n2_p_Andres2023-10-03T16:02:35Z Influence of the Hall effect and electron inertia in collisionless magnetic reconnection Andrés, N. Dmitruk, P. Gómez, D. Electrons Magnetism Plasma simulation Dissipative effects Electron inertia Magnetic field line Magnetic reconnections Numerical results Reconnection rate Stationary conditions Topological changes Magnetohydrodynamics We study the role of the Hall current and electron inertia in collisionless magnetic reconnection within the framework of full two-fluid MHD. At spatial scales smaller than the electron inertial length, a topological change of magnetic field lines exclusively due to the electron inertia becomes possible. Assuming stationary conditions, we derive a theoretical scaling for the reconnection rate, which is simply proportional to the Hall parameter. Using a pseudo-spectral code with no dissipative effects, our numerical results confirm this theoretical scaling. In particular, for a sequence of different Hall parameter values, our numerical results show that the width of the current sheet is independent of the Hall parameter, while its thickness is of the order of the electron inertial range, thus confirming that the stationary reconnection rate is proportional to the Hall parameter. © 2016 AIP Publishing LLC. Fil:Andrés, N. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Dmitruk, P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Gómez, D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_1070664X_v23_n2_p_Andres |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Electrons Magnetism Plasma simulation Dissipative effects Electron inertia Magnetic field line Magnetic reconnections Numerical results Reconnection rate Stationary conditions Topological changes Magnetohydrodynamics |
| spellingShingle |
Electrons Magnetism Plasma simulation Dissipative effects Electron inertia Magnetic field line Magnetic reconnections Numerical results Reconnection rate Stationary conditions Topological changes Magnetohydrodynamics Andrés, N. Dmitruk, P. Gómez, D. Influence of the Hall effect and electron inertia in collisionless magnetic reconnection |
| topic_facet |
Electrons Magnetism Plasma simulation Dissipative effects Electron inertia Magnetic field line Magnetic reconnections Numerical results Reconnection rate Stationary conditions Topological changes Magnetohydrodynamics |
| description |
We study the role of the Hall current and electron inertia in collisionless magnetic reconnection within the framework of full two-fluid MHD. At spatial scales smaller than the electron inertial length, a topological change of magnetic field lines exclusively due to the electron inertia becomes possible. Assuming stationary conditions, we derive a theoretical scaling for the reconnection rate, which is simply proportional to the Hall parameter. Using a pseudo-spectral code with no dissipative effects, our numerical results confirm this theoretical scaling. In particular, for a sequence of different Hall parameter values, our numerical results show that the width of the current sheet is independent of the Hall parameter, while its thickness is of the order of the electron inertial range, thus confirming that the stationary reconnection rate is proportional to the Hall parameter. © 2016 AIP Publishing LLC. |
| format |
JOUR |
| author |
Andrés, N. Dmitruk, P. Gómez, D. |
| author_facet |
Andrés, N. Dmitruk, P. Gómez, D. |
| author_sort |
Andrés, N. |
| title |
Influence of the Hall effect and electron inertia in collisionless magnetic reconnection |
| title_short |
Influence of the Hall effect and electron inertia in collisionless magnetic reconnection |
| title_full |
Influence of the Hall effect and electron inertia in collisionless magnetic reconnection |
| title_fullStr |
Influence of the Hall effect and electron inertia in collisionless magnetic reconnection |
| title_full_unstemmed |
Influence of the Hall effect and electron inertia in collisionless magnetic reconnection |
| title_sort |
influence of the hall effect and electron inertia in collisionless magnetic reconnection |
| url |
http://hdl.handle.net/20.500.12110/paper_1070664X_v23_n2_p_Andres |
| work_keys_str_mv |
AT andresn influenceofthehalleffectandelectroninertiaincollisionlessmagneticreconnection AT dmitrukp influenceofthehalleffectandelectroninertiaincollisionlessmagneticreconnection AT gomezd influenceofthehalleffectandelectroninertiaincollisionlessmagneticreconnection |
| _version_ |
1782024503093624832 |