Modeling of 3-d corotating cosmic-ray structures in the heliosphere

J. Kóta, J. R. Jokipii

Research output: Contribution to journalArticlepeer-review

39 Scopus citations


We present a brief review of the modeling of corotating 3-dimensional features in heliospheric cosmic rays. The model heliosphere incorporates a wavy current sheet and Corotating Interaction Regions (CIRs). We find that present models can qualitatively account for the observed extension of recurrent 26-day cosmic-ray variations to high heliospheric latitudes if perpendicular diffusion is significant. The recurrent enhancement of low-energy (MeV) particles accelerated at CIR-s is also shown to fit into this same picture.

Original languageEnglish (US)
Pages (from-to)137-145
Number of pages9
JournalSpace Science Reviews
Issue number1-2
StatePublished - 1998


  • 26-day variations
  • 3-D models
  • Corotating structures
  • Cosmic Rays

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science


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