Coronal Mass Ejections and the Injection Profiles of Solar Energetic Particle Events
Abstract
Previous studies using Skylab and Solwind coronagraph observations have shown that almost all E greater than 10 MeV solar energetic proton (SEP) events are associated with the occurrence of a coronal mass ejection (CME). These earlier studies did not address the relationship between the position of the associated CME and the timing of the injection of particles into the interplanetary medium. Ten cases are selected in which a SEP event observed with the GSFC detectors on the IMP 8 or ISEE 3 spacecraft was correlated to a CME well observed by the Solwind coronagraph. The height of the leading edge of the CME is compared with the particle injection profiles for several energy ranges using the solar release times for the particles. The derived injection profiles are found to be increasing and sometimes reaching maximum while the associated CMEs are at heights of 2-10 Ro.
- Publication:
-
21st International Cosmic Ray Conference (ICRC21)
- Pub Date:
- 1990
- Bibcode:
- 1990ICRC....5..183K
- Keywords:
-
- Energetic Particles;
- Interplanetary Medium;
- Solar Corona;
- Solar Protons;
- Stellar Mass Ejection;
- International Sun Earth Explorers;
- Shock Waves;
- Solar Wind;
- Space Radiation