Nonlinear modification of magnetospheric plasma under the action of the ULF-wave ponderomotive force on the dayside |
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| Authors: | A K Nekrasov F Z Feygin |
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| Institution: | 1. Schmidt Institute of Physics of the Earth, Russian Academy of Sciences, Bol’shaya Gruzinskaya ul. 10, Moscow, 123995, Russia
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| Abstract: | Nonlinear modification of the plasma magnetospheric density near the dayside magnetospheric boundary, caused by the ponderomotive force induced by ULF geomagnetic pulsations, has been studied analytically and numerically. An expression for the ponderomotive force, which differs from the previous similar results, has been obtained. It has been indicated that the well-known Pitaevskii formula for magnetic moment is incomplete. The action of the ponderomotive, gravitational, and centrifugal forces on magnetospheric plasma modification in a two-dipole geomagnetic field according to the (Antonova and Shabanskii, 1968) model has been considered. |
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