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.Fil: Dmitruk, Pablo Ariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ci...
We present a review of the different models that have been proposed to explain reversals of the magn...
The effect of precession in a rotating sphere filled with fluid was studied with direct numerical si...
Inversion of the magnetic field in a model of large-scale αΩ-dynamo with α-effect with s...
A parametric study of the magnetic dipole behavior in resistive incompressible magnetohydrodynamics ...
We show that the modes involved in the dynamics of reversals of the magnetic field generated by the ...
Magnetic helicity is a fundamental constraint in both ideal and resistive magnetohydrodynamics. Meas...
International audienceWe investigate the phenomenology of reversals predicted by a multiscale αω dyn...
Context. During a solar magnetic field reversal the magnetic dipole moment does not vanish, but migr...
In a recent paper (Phys. Rev. Lett. 94 (2005), 184506; physics/0411050) it was shown that a simple m...
The asymmetric shape of reversals of the Earth's magnetic field indicates a possible connection with...
The irregular polarity reversals of the Earth's magnetic field have attracted much interest during t...
Aiming to understand the physical processes underneath the reversals events of geomagnetic field, di...
International audienceIn order to better understand the origin and nature of reversals of the Earth’...
International audienceUsing direct numerical simulations of the equations of magnetohydrodynamics, w...
The Earth\u27s geomagnetic field reverses its polarity at irregular time intervals. However, it is n...
We present a review of the different models that have been proposed to explain reversals of the magn...
The effect of precession in a rotating sphere filled with fluid was studied with direct numerical si...
Inversion of the magnetic field in a model of large-scale αΩ-dynamo with α-effect with s...
A parametric study of the magnetic dipole behavior in resistive incompressible magnetohydrodynamics ...
We show that the modes involved in the dynamics of reversals of the magnetic field generated by the ...
Magnetic helicity is a fundamental constraint in both ideal and resistive magnetohydrodynamics. Meas...
International audienceWe investigate the phenomenology of reversals predicted by a multiscale αω dyn...
Context. During a solar magnetic field reversal the magnetic dipole moment does not vanish, but migr...
In a recent paper (Phys. Rev. Lett. 94 (2005), 184506; physics/0411050) it was shown that a simple m...
The asymmetric shape of reversals of the Earth's magnetic field indicates a possible connection with...
The irregular polarity reversals of the Earth's magnetic field have attracted much interest during t...
Aiming to understand the physical processes underneath the reversals events of geomagnetic field, di...
International audienceIn order to better understand the origin and nature of reversals of the Earth’...
International audienceUsing direct numerical simulations of the equations of magnetohydrodynamics, w...
The Earth\u27s geomagnetic field reverses its polarity at irregular time intervals. However, it is n...
We present a review of the different models that have been proposed to explain reversals of the magn...
The effect of precession in a rotating sphere filled with fluid was studied with direct numerical si...
Inversion of the magnetic field in a model of large-scale αΩ-dynamo with α-effect with s...