Pressure torque of torsional Alfvén modes acting on an ellipsoidal mantle
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DOI: 10.1093/gji/ggaa166
Abstract: We investigate the pressure torque between the fluid core and the solid mantle arising from magnetohydrodynamic modes in a rapidly rotating planetary core. A two-dimensional reduced model of the core fluid dynamics is developed to… read more here.
Keywords: pressure torque; torque torsional; torsional alfv; alfv modes ... See more keywords
Torsional Alfvén waves in a dipolar magnetic field: experiments and simulations
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DOI: 10.1093/gji/ggz112
Abstract: The discovery of torsional Alfvén waves (geostrophic Alfvén waves) in the Earth’s core (Gillet et al. 2010) calls for a better understanding of their properties. We present the first experimental observations of torsional Alfvén waves, performed… read more here.
Keywords: alfv; alfv waves; inner sphere; magnetic field ... See more keywords