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Chen & Fritz 2001
Chen, J. and Fritz, T.A. (2001). Energetic oxygen ions of ionospheric origin observed in the cusp. Geophysical Research Letters 28: doi: 10.1029/2000GL012128. issn: 0094-8276.

On 8/27/96 from 8 to 10:36 UT the POLAR satellite crossed the dayside cusp and observed very energetic ionospheric O≤+2 ions which had a magnetic moment spectrum, M(E) that followed a power law. Later at 14:45 to 15:30 UT the satellite passed through the ring current at 15-16 MLT where the O≤+2 ions again had a M(E) power law form but with a spectral amplitude that was two orders of magnitude lower. During this period from 8 to 16 UT there were no magnetic storms as Dst had an average value of ~ -5 nT. The comparison of the fluxes at constant M means that the energetic ions in the cusp cannot have a source in the ring current. Arguments are given that the comparison of these sequential measurements of M(E) are valid and that a new mechanism is needed for producing these energetic ionospheric ions observed in the cusp. ¿ 2001 American Geophysical Union

BACKGROUND DATA FILES

Abstract

Keywords
Magnetospheric Physics, Energetic particles, trapped, Magnetospheric Physics, Magnetopause, cusp, and boundary layers, Magnetospheric Physics, Magnetospheric configuration and dynamics, Magnetospheric Physics, Ring current
Journal
Geophysical Research Letters
http://www.agu.org/journals/gl/
Publisher
American Geophysical Union
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