Parallel electric fields accelerating ions and electrons in the same direction

Details Parallel electric fields accelerating ions and electrons in the same direction Parallel electric fields accelerating ions and electrons in the same direction

May 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988ap%26ss.144..149h&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 144, no. 1-2, May 1988, p. 149-154. Research supported by the Swedish Boar

Astronomy and Astrophysics

Astrophysics

4

Auroral Zones, Electric Fields, Electron Acceleration, Field Aligned Currents, Geomagnetism, Ion Motion, Lines Of Force, Earth Magnetosphere, Magnetic Storms, Particle Acceleration, Swedish Space Program

Scientific paper

In this contribution Viking observations of electrons and positive ions which move upward along the magnetic field lines with energies of the same order of magnitude are presented. It is proposed that both ions and electrons are accelerated by an electric field which has low-frequency temporal variations such that the ions experience an average electrostatic potential drop along the magnetic field lines whereas the upward streaming electrons are accelerated in periods of downward pointing electric field which is quasi-static for the electrons and forces them to beam out of the field region before the field changes direction.

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