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Published in 2020 at "Journal of Geophysical Research"
DOI: 10.1029/2020ja028187
Abstract: We investigate how initially high-m, poloidal Alfvén waves evolve using a numerical model solving the ideal, cold, linear magnetohydrodynamic (MHD) equations in a 2-D dipole coordinate system. The curved magnetic geometry provides a key difference…
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Keywords:
high poloidal;
field;
poloidal;
geometry ... See more keywords
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Published in 2019 at "Geophysical Journal International"
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…
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Keywords:
alfv;
alfv waves;
inner sphere;
magnetic field ... See more keywords
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Published in 2017 at "IEEE Transactions on Plasma Science"
DOI: 10.1109/tps.2017.2665628
Abstract: A theoretical investigation has been carried out to study the nonlinear propagation of high-frequency electromagnetic (EM) waves in a magnetized relativistic rotating electron–positron plasma. The Korteweg-de Vries (K-dV) equation is derived by employing the reductive…
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Keywords:
positron;
positron plasma;
alfv;
electron ... See more keywords
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1
Published in 2019 at "Science Advances"
DOI: 10.1126/sciadv.aav8411
Abstract: Global Alfvén wave power above the auroral zone increases fourfold during geomagnetic storms. Geomagnetic storms are large space weather events with potentially tremendous societal implications. During these storms, the transfer of energy from the solar…
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Keywords:
alfv wave;
auroral acceleration;
power;
geomagnetic storms ... See more keywords
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Published in 2020 at "Geomagnetism and Aeronomy"
DOI: 10.1134/s0016793220040143
Abstract: The propagation of linear Alfvén waves with periods of 10–200 s from the photosphere to the solar chromosphere under the conditions of an isothermal atmosphere taking into account the amplitude-phase relationships are considered. It was…
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Keywords:
characteristics energy;
energy transfer;
alfv;
alfv waves ... See more keywords