Acceleration of lithium test ions in the quiet time geomagnetic tail

Details Acceleration of lithium test ions in the quiet time geomagnetic tail Acceleration of lithium test ions in the quiet time geomagnetic tail

Sep 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984jgr....89.7357c&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 89, Sept. 1, 1984, p. 7357-7366.

Physics

9

Earth Magnetosphere, Geomagnetic Tail, Ion Motion, Lithium, Particle Acceleration, Atmospheric Models, Electromagnetic Fields, Night Sky, Particle Trajectories, Ring Currents, Space Plasmas, Spaceborne Experiments, Two Dimensional Models

Scientific paper

One of the active experiments to be performed as part of the Active Magnetospheric Particle Tracer Explorers mission involves the release of lithium ions in the geomagnetic tail and their subsequent detection after earthward convection into the nightside outer ring current region. In this paper the guiding center approximation is used to integrate ion trajectories in a simple two-dimensional model of the quiet time nightside magnetosphere in order to estimate expected ion properties at the latter location. The principal conclusion is that under typical quiet time conditions these ions will predominantly form a field-aligned beam (at about 5 to 28 deg pitch angle) at energies from a few hundred eV to about 1 keV.

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