A possible mechanism of ion acceleration in the daytime polar cusps

Details A possible mechanism of ion acceleration in the daytime polar cusps A possible mechanism of ion acceleration in the daytime polar cusps

Jan 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983kosis..21..135l&link_type=abstract

Kosmicheskie Issledovaniia, vol. 21, Jan.-Feb. 1983, p. 135-137. In Russian.

Physics

Plasma Physics

Auroral Zones, Ionospheric Ion Density, Magnetic Disturbances, Particle Acceleration, Plasma Acceleration, Polar Caps, Polar Cusps, Daytime, Magnetohydrodynamic Waves, Particle Collisions, Plasma Physics, Plasma Temperature, Plasma-Electromagnetic Interaction, Transverse Acceleration

Scientific paper

A mechanism of the transverse acceleration of ions in the auroral zone is described. This mechanism depends on the formation and destruction of Alfven magnetic-rope structures during strong magnetic disturbances. The pulsed acceleration occurs of superthermal plasma electrons and ions which do not experience collective collisions and are freely accelerated in the spiral field of the magnetic rope. Thus, at heights above the far polar cusp (i.e., at distances exceeding 10 earth radii) 'transversely' accelerated charged particles should be observed.

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