Coronal and Interplanetary Environment of Large Solar Energetic Particle Events
Abstract
We studied the properties of coronal mass ejections (CMEs) associated with large solar energetic particle (SEP) events during 1997-2002 and compared them with those of preceding CMEs from the same source region. The primary findings of this study are (1) High-intensity (> 50 protons cm-2 s-1 sr-1 ) events are more likely to be preceded by other wide CMEs. (2) The preceding CMEs are faster and wider than average CMEs. (3) The primary CMEs often propagate through the near-Sun interplanetary medium severely disturb ed and distorted by the preceding CMEs.
- Publication:
-
International Cosmic Ray Conference
- Pub Date:
- July 2003
- Bibcode:
- 2003ICRC....6.3549G