GRADUAL SOLAR ENERGETIC PARTICLE EVENTS OBSERVED BY SOHO~*/EPHIN ON NOVEMBER 4 AND 6, 1997

摘要

In November 1997, EPHIN (Electron, Proton, Helium Instrument) aboard Solar and Heliospheric Observatory (SOHO) detected Solar Energetic Particles (SEP) from a multiple large event. Composition, temporal profiles, and energy spectra of electrons, hydrogen and helium have been analysed. The SEP events show, in general, gradual characteristic related to acceleration in the shocks driven by the associated Coronal Mass Ejections (CMEs).