AbstractHighly relativistic electron events (HREs) are periods of intense, long-lived, energetic electron fluxes in the outer radiation zone. We are using measurements from the High Energy Particle Spectrometer (HEPS) on the Upper Atmosphere Research Satellite (UARS) to develop a database of the pitch-angle and energy-resolved electron fluxes with energies between 30 keV and 5 MeV. The data acquired by HEPS have overlapped with the declining phase of solar cycle 22 making these data very important, since HREs are thought to peak in frequency and intensity during this phase of the solar cycle. We find a consistent scenario of electrons being injected into the radiation belts by a magnetic storm (deduced from Dst) and being slowly accelerated to ever higher energies over days to weeks. The energy dependence of the flux is an essential part of the analysis. Electrons with energies greater than 300 keV are the last to appear following an injection and also linger longer than electrons with lower energies.
Evolution of relativistic electrons during a magnetic storm as seen in low-earth orbit
Advances in Space Research ; 31 , 4 ; 1059-1062
2002-01-01
4 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Evolution of relativistic electrons during a magnetic storm as seen in low-earth orbit
Online Contents | 2003
|Evolution of Relativistic Electrons During a Magnetic Storm as Seen in Low-Earth Orbit
British Library Conference Proceedings | 2003
|Rapid Enhancement of Relativistic Electrons in the Outer Radiation Belt during Magnetic Storm
British Library Conference Proceedings | 2000
|British Library Conference Proceedings | 2003
|