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Solar Energetic Particle Composition, Energy Spectra, and Space Weather

Abstract

Recent progress in measuring the composition and energy spectra of solar energetic particles (SEPs) accelerated by CME-driven shocks is reviewed, including a comparison of the observed charge-to-mass dependence of breaks in SEP spectra with model predictions. Also discussed is a comparison of SEP and CME kinetic energies in seventeen large SEP events, and estimates of the SEP radiation dose that astronauts would be subject to once they venture outside the protective cover of Earth’s magnetosphere.

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Mewaldt, R.A. Solar Energetic Particle Composition, Energy Spectra, and Space Weather. Space Sci Rev 124, 303–316 (2006). https://doi.org/10.1007/s11214-006-9091-0

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Keywords

  • solar energetic particles
  • space weather
  • particle acceleration
  • coronal mass ejections
  • space radiation