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Abstract:

Systematic analysis of numerical simulations of two-dimensional magnetohydrodynamic turbulence reveals the presence of a large number of X-type neutral points where magnetic reconnection occurs. We examine the statistical properties of this ensemble of reconnection events that are spontaneously generated by turbulence. The associated reconnection rates are distributed over a wide range of values and scales with the geometry of the diffusion region. Locally, these events can be described through a variant of the Sweet-Parker model, in which the parameters are externally controlled by turbulence. This new perspective on reconnection is relevant in space and astrophysical contexts, where plasma is generally in a fully turbulent regime. © 2009 The American Physical Society.

Registro:

Documento: Artículo
Título:Magnetic reconnection in two-dimensional magnetohydrodynamic turbulence
Autor:Servidio, S.; Matthaeus, W.H.; Shay, M.A.; Cassak, P.A.; Dmitruk, P.
Filiación:Bartol Research Institute, Department of Physics and Astronomy, University of Delaware, Newark, DE 19716, United States
Department of Physics, West Virginia University, Morgantown, WV 26506, United States
Departmento de Física, Facultad de Ciencias Exactas y Naturales, Ciudad Universitaria, 1428, Buenos Aires, Argentina
Palabras clave:Astrophysics; Fluid dynamics; Geophysics; Magnetohydrodynamics; Two dimensional; Diffusion regions; Magnetic reconnections; Magnetohydrodynamic turbulences; Numerical simulations; Reconnection rates; Statistical properties; Sweet-Parker models; Systematic analysis; Turbulent regimes; X-type neutral points; Turbulence
Año:2009
Volumen:102
Número:11
DOI: http://dx.doi.org/10.1103/PhysRevLett.102.115003
Título revista:Physical Review Letters
Título revista abreviado:Phys Rev Lett
ISSN:00319007
CODEN:PRLTA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319007_v102_n11_p_Servidio

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Citas:

---------- APA ----------
Servidio, S., Matthaeus, W.H., Shay, M.A., Cassak, P.A. & Dmitruk, P. (2009) . Magnetic reconnection in two-dimensional magnetohydrodynamic turbulence. Physical Review Letters, 102(11).
http://dx.doi.org/10.1103/PhysRevLett.102.115003
---------- CHICAGO ----------
Servidio, S., Matthaeus, W.H., Shay, M.A., Cassak, P.A., Dmitruk, P. "Magnetic reconnection in two-dimensional magnetohydrodynamic turbulence" . Physical Review Letters 102, no. 11 (2009).
http://dx.doi.org/10.1103/PhysRevLett.102.115003
---------- MLA ----------
Servidio, S., Matthaeus, W.H., Shay, M.A., Cassak, P.A., Dmitruk, P. "Magnetic reconnection in two-dimensional magnetohydrodynamic turbulence" . Physical Review Letters, vol. 102, no. 11, 2009.
http://dx.doi.org/10.1103/PhysRevLett.102.115003
---------- VANCOUVER ----------
Servidio, S., Matthaeus, W.H., Shay, M.A., Cassak, P.A., Dmitruk, P. Magnetic reconnection in two-dimensional magnetohydrodynamic turbulence. Phys Rev Lett. 2009;102(11).
http://dx.doi.org/10.1103/PhysRevLett.102.115003