Elativistic Electron Dynamics during Strong Magnetic Storms of July and November 2004.
Abstract
Energetic electron and proton measurements on board of the low-altitude satellites Coronas-F and Servis-1 were used to study transformation of the radial profiles of 0.3-3.0 MeV electrons during chains of the magnetic storms of July 22-30 and November 7-11, 2004. During the main storm phase considerable asymmetry of the radial profiles were found: at the evening sector electron drift shells were affected by the partial ring current development while at the morning side substorm activity was the main cause of the profile dynamics. Acceleration of the energetic electrons during the recovery phases of the substorms was accompanied by earthward shift of the electron intensity maximum and earthward boundary, suggesting betatron type of acceleration. Inspection of the radial profiles of 1-15 MeV solar protons trapped into the proton belt during beginning of the recovery phase reveal similar dynamics with the same rate of earthward displacement, which indicate on the common acceleration mechanism.
- Publication:
-
37th COSPAR Scientific Assembly
- Pub Date:
- 2008
- Bibcode:
- 2008cosp...37.2339P