Energetic electrons in the outer magnetosphere at mid to high latitudes
Abstract
Results are reported for coordinated HEOS 2 electron and magnetic-field observations in the zone of unstable (variable) radiation at middle to high latitudes in the northern magnetosphere. The observations are discussed in terms of dayside closed field lines, the flanks of the magnetotail, and the distribution of variable electron fluxes observed in the outer magnetosphere. It is found that: (1) the electron population of the dayside pseudotrapping region extends out to the magnetopause at medium and high latitudes; (2) in the flanks of the magnetotail the electron population extends to high latitudes along the horns discovered at low latitudes by Frank et al. (1963); (3) the horn on the morning side appears to be populated by higher electron intensities and to extend to higher latitudes than that on the evening side; and (4) the electron fluxes in the flanks of the magnetotail appear to be a continuation of those encountered in the dayside pseudotrapping region and exhibit properties similar to those observed for electrons encountered in the magnetopause electron layer and in the magnetosheath.
- Publication:
-
Space Research XVIII
- Pub Date:
- 1978
- Bibcode:
- 1978spre.conf..313D
- Keywords:
-
- Electron Flux Density;
- Energetic Particles;
- Magnetospheric Electron Density;
- Midlatitude Atmosphere;
- Polar Regions;
- Electron Distribution;
- Geomagnetic Tail;
- Heos Satellites;
- Lines Of Force;
- Magnetosheath;
- Space Radiation