Corotating interaction regions in the outer heliosphere: Report of Working Group 4

P. R. Gazis, F. B. McDonald, R. A. Burger, S. Chalov, R. B. Decker, J. Dwyer, D. S. Intriligator, J. R. Jokipii, A. J. Lazarus, G. M. Mason, V. J. Pizzo, M. S. Potgieter, I. G. Richardson, L. J. Lanzerotti

Research output: Contribution to journalArticle

19 Scopus citations

Abstract

We discuss the structure and evolution of CIRs and their successors in the outer heliosphere. These structures undergo significant evolution as they are convected to greater heliocentric distances. A progression of different types of structure are observed at increasing distance from the Sun. Similar structures are observed at similar heliocentric distance at different portions of the solar cycle. CIRs and their successors are associated with many important physical processes in the outer heliosphere. We discuss the relationship between these structures and recurrent phenomena such as cosmic ray variations, and review some of the associated theoretical models on the role of corotating structures and global merged interaction regions (GMIRs) in global cosmic ray modulation. We also discuss some outstanding questions related to the origin of non-dispersive quasi-periodic particle enhancements associated with CIRs and their successors in the outer heliosphere.

Original languageEnglish (US)
Pages (from-to)269-305
Number of pages37
JournalSpace Science Reviews
Volume89
Issue number1-2
DOIs
StatePublished - Jan 1 1999

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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