Energy dispersion features in the vicinity of the cusp

Details Energy dispersion features in the vicinity of the cusp Energy dispersion features in the vicinity of the cusp

Dec 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999georl..26.3553k&link_type=abstract

Geophysical Research Letters, Volume 26, Issue 23, p. 3553-3556

Physics

5

Ionosphere: Particle Precipitation, Magnetospheric Physics: Energetic Particles, Precipitating, Magnetospheric Physics: Magnetospheric Configuration And Dynamics, Magnetospheric Physics: Solar Wind/Magnetosphere Interactions

Scientific paper

Highly energetic particles have been observed by the Polar spacecraft in the vicinity of the cusp. The energy of these particles, which often exceeds 1 MeV, is frequently characterized by dispersion. Emphasis is given to the data obtained by Polar in the time interval March 1996-May 1997. Time-Energy Dispersive (TED) features are observed almost every day in the vicinity of the dayside cusp (and usually multiple times in one day), from 66° to 78° invariant latitude, while no TEDs are detected at latitudes lower than 60° or higher than 84°. In addition, TEDs are observed mostly around the time period between 12:00 and 15:00 MLT, and they can last from a few minutes up to three hours.

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