 |
| Titel |
Extreme solar energetic particle events |
| VerfasserIn |
Rami Vainio, Alexandr Afanasiev, Markus Battarbee |
| Konferenz |
EGU General Assembly 2016
|
| Medientyp |
Artikel
|
| Sprache |
en
|
| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 18 (2016) |
| Datensatznummer |
250128025
|
| Publikation (Nr.) |
 EGU/EGU2016-7965.pdf |
|
|
|
|
|
| Zusammenfassung |
| Properties of extreme solar energetic particle (SEP) events, here defined as those leading to ground level enhancements (GLEs) of cosmic rays, are reviewed. We review recent efforts on modeling SEP acceleration to relativistic energies and present simulation results on particle acceleration at shocks driven by fast coronal mass ejections (CMEs) in different types of coronal magnetic structures and turbulent downstream compression regions. Based on these modeling results, we discuss the possible role of solar and CME parameters in the lack of GLEs during the present sunspot cycle.
This work has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 637324 (HESPERIA). The Academy of Finland is thanked for financial support. |
|
|
|
|
|
|