Particle orbits in model current sheet with a nonzero B(y) component

Details Particle orbits in model current sheet with a nonzero B(y) component Particle orbits in model current sheet with a nonzero B(y) component

May 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993jgr....98.7603z&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 98, no. A5, p. 7603-7608.

Physics

45

Current Sheets, Geomagnetic Tail, Magnetohydrodynamics, Particle Acceleration, Particle Motion, Earth Magnetosphere, Magnetic Field Configurations, Magnetically Trapped Particles, Models, Space Plasmas

Scientific paper

The problem of charged particle motions in magnetotaillike model current sheets is revisited with the inclusion of a nonzero dawn-dusk magnetic field component. Three cases are examined considering both trapped and escaped orbits. The results show that a nonzero B(y) component disturbs the particle orbits by destroying orbit symmetry in the phase space about the z = 0 plane. It also changes the bounce frequency of particle orbits. The presence of B(y) thus modifies the Speiser orbits, particularly near the ejection phase. The process of ejected particle such as ejection direction, ejection velocity, and pitch angles are shown to depend on the sign of the charge.

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