Pc 1 induced electromagnetic lift of background plasma in the magnetosphere | Zendy

Guglielmi A. | Zendy; Kangas J. | Zendy; Mursula K. | Zendy; Pikkarainen T. | Zendy; Pokhotelov O. | Zendy; Potapov A. | Zendy

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Pc 1 induced electromagnetic lift of background plasma in the magnetosphere

Author(s) -

Guglielmi A.,

Kangas J.,

Mursula K.,

Pikkarainen T.,

Pokhotelov O.,

Potapov A.

Publication year - 1996

Publication title -

journal of geophysical research: space physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.67

H-Index - 298

eISSN - 2156-2202

pISSN - 0148-0227

DOI - 10.1029/96ja01750

Subject(s) - physics , plasma , magnetosphere , ponderomotive force , cyclotron , earth's magnetic field , magnetic field , computational physics , quantum electrodynamics , ion , atomic physics , field line , geophysics , quantum mechanics

We discuss the ponderormotive redistribution of ions along geomagnetic field lines due to the action of Pc 1 pulsations, using a simple diffusion equilibrium model. The field‐aligned component of the ponderomotive force is derived for Alfvén waves as well as for ion cyclotron waves propagating in a multicomponent plasma. Our theory gives a possibility for a better understanding of the problem and a convenient way to make rough estimates of the ponderomotive efficiency of Pc 1 waves under concrete magnetospheric conditions. Qualitative analysis of equations and satellite information on the intensity of wave fields show that the ponderomotive forces can have a pronounced effect on plasma. Ground‐based observations of Pc 1 pulsations also suggest a ponderomotive redistribution of the background plasma.

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