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Paper: Solar Energetic Particle Events through the Current Solar Cycle Minimum
Volume: 428, SOHO-23: Understanding a Peculiar Solar Minimum
Page: 259
Authors: Kahler, S. W.
Abstract: The current deep minimum in solar activity includes a dearth in the occurrence of E > 10 MeV solar energetic particle (SEP) events. With no recent SEP events to discuss, we consider three related topics: (1) the occurrence rates from 2006 to 2009 of gradual SEP events and the fast and wide CMEs required for their production, presented in an historical context; (2) SEPs in three different roles during the last period of enhanced SEP activity in December 2006: neutral atom tracers of the SEP injection region, as a ground level event, and as probes of a magnetic cloud; and (3) a brief survey of new ground and space instruments that will measure high-energy (≥ 50 MeV) SEPs over the next activity cycle.
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