Relationship between SEP peak intensity and shock speed, CME width and acceleration; no
Abstract
We study the large solar energetic particle (SEP) events that were detected by GOES in the >10 MeV energy channel during December 2006 to January 2016. Data used in this study includes the Solar Electron Proton Telescope (SEPT) and High Energy Telescopes (HET) on STEREO A and B, the Electron, Proton, and Alpha Monitor (EPAM) on ACE, and the Energetic and Relativistic Nuclei and Electron instrument (ERNE) on SOHO. From multi-spacecraft observations we obtained the peak intensity I0 at the center of the Gausssian function using the Gausssian fit. We then study the relationship between electron and proton peak intensity and shock speed and CME width. We found that the correlation between electron and proton peak intensity and shock speed can be improved by taking into account the effects of CME width and SEP connection angle. We also found that SEP onset and peak delays relative to type III onset are closely related to the CME accelerations at the main and residual acceleration phases. The implication for the SEP forecast of our obtained results will be discussed.
- Publication:
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Solar Heliospheric and INterplanetary Environment (SHINE 2018)
- Pub Date:
- July 2018
- Bibcode:
- 2018shin.confE.112X