Causes, Occurrences, and Consequences of Extreme Solar Particle Events (Invited)

Details Causes, Occurrences, and Consequences of Extreme Solar Particle Events (Invited) Causes, Occurrences, and Consequences of Extreme Solar Particle Events (Invited)

Dec 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010agufmsh52a..01m&link_type=abstract

American Geophysical Union, Fall Meeting 2010, abstract #SH52A-01

Physics

Plasma Physics

[7513] Solar Physics, Astrophysics, And Astronomy / Coronal Mass Ejections, [7514] Solar Physics, Astrophysics, And Astronomy / Energetic Particles, [7845] Space Plasma Physics / Particle Acceleration, [7984] Space Weather / Space Radiation Environment

Scientific paper

This talk will discuss the conditions that result in extreme solar energetic particle (SEP) events, their frequency of occurrence, and some of their consequences. It will argued that the largest SEP events are accelerated by shocks driven by fast coronal mass ejections (CMEs), and that they require CMEs with kinetic energies exceeding 1032 ergs that encounter an abundant population of suprathermal seed particles. The occurrence frequency of extreme SEP events will be investigated using in-situ, ground-based, and polar ice-core data. Finally, we discuss some of the potential consequences of extreme SEP events for humans and hardware in space.

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