Ion Beams in the Auroral Region: Characteristics of Different Species

Details Ion Beams in the Auroral Region: Characteristics of Different Species Ion Beams in the Auroral Region: Characteristics of Different Species

May 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agusm..sm42a08d&link_type=abstract

American Geophysical Union, Spring Meeting 2001, abstract #SM42A-08

Physics

2451 Particle Acceleration, 2481 Topside Ionosphere, 2704 Auroral Phenomena (2407)

Scientific paper

Ions are accelerated upward along the Earth's magnetic field to form ion beams. We compare the beam location normalized to the location of the auroral zone to the density, energy, number flux, and energy flux of H+, He+, and O+ for about 290 ion beams measured with the FAST satellite during winter 1997. We see ions with energies above 2~keV only in the poleward half of the auroral zone, and larger energy fluxes are more likely to occur at higher latitudes. There may be a decrease in density of H+ and an increase in number flux of He+ as FAST moves poleward.

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