Abstract:
Employing a simple ideal magnetohydrodynamic model in spherical geometry, we show that the presence of either rotation or finite magnetic helicity is sufficient to induce dynamical reversals of the magnetic dipole moment. The statistical character of the model is similar to that of terrestrial magnetic field reversals, with the similarity being stronger when rotation is present. The connection between long-time correlations, 1/f noise, and statistics of reversals is supported, consistent with earlier suggestions. © 2014 American Physical Society.
Registro:
Documento: |
Artículo
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Título: | Magnetic field reversals and long-time memory in conducting flows |
Autor: | Dmitruk, P.; Mininni, P.D.; Pouquet, A.; Servidio, S.; Matthaeus, W.H. |
Filiación: | Departamento de Física, Facultad de Ciencias Exactas y Naturales, CONICET, Buenos Aires, Argentina Department of Atmospheric and Space Physics, University of Colorado, National Center for Atmospheric Research, Boulder, CO, United States Dipartimento di Fisica, Universita della Calabria, Cosenza, Italy Bartol Research Institute, Department of Physics and Astronomy, University of Delaware, Newark, DE, United States
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Palabras clave: | Magnetic field reversal |
Año: | 2014
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Volumen: | 90
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Número: | 4
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DOI: |
http://dx.doi.org/10.1103/PhysRevE.90.043010 |
Título revista: | Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
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Título revista abreviado: | Phys. Rev. E Stat. Nonlinear Soft Matter Phys.
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ISSN: | 15393755
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CODEN: | PLEEE
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Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15393755_v90_n4_p_Dmitruk |
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Citas:
---------- APA ----------
Dmitruk, P., Mininni, P.D., Pouquet, A., Servidio, S. & Matthaeus, W.H.
(2014)
. Magnetic field reversals and long-time memory in conducting flows. Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, 90(4).
http://dx.doi.org/10.1103/PhysRevE.90.043010---------- CHICAGO ----------
Dmitruk, P., Mininni, P.D., Pouquet, A., Servidio, S., Matthaeus, W.H.
"Magnetic field reversals and long-time memory in conducting flows"
. Physical Review E - Statistical, Nonlinear, and Soft Matter Physics 90, no. 4
(2014).
http://dx.doi.org/10.1103/PhysRevE.90.043010---------- MLA ----------
Dmitruk, P., Mininni, P.D., Pouquet, A., Servidio, S., Matthaeus, W.H.
"Magnetic field reversals and long-time memory in conducting flows"
. Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, vol. 90, no. 4, 2014.
http://dx.doi.org/10.1103/PhysRevE.90.043010---------- VANCOUVER ----------
Dmitruk, P., Mininni, P.D., Pouquet, A., Servidio, S., Matthaeus, W.H. Magnetic field reversals and long-time memory in conducting flows. Phys. Rev. E Stat. Nonlinear Soft Matter Phys. 2014;90(4).
http://dx.doi.org/10.1103/PhysRevE.90.043010