Particle transport and acceleration at corotating interaction regions

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

The transport and acceleration of energetic nuclei associated with corotating interaction regions is discussed with emphasis on its importance relative to global heliospheric phenomena such as anomalous cosmic rays, the distant heliosphere, and propagation to high latitudes. We will discuss aspects of particle acceleration at the forward and reverse shocks bounding CIRs which support the idea that accelerated pickup ions are important contributors to energetic ions in the heliosphere. We will outline our current understanding of the source of CIR-associated energetic nuclei based on multi-spacecraft observations of the spatial variation of low-energy cosmic rays, as well as that of freshly ionized pickup ions. We will also discuss the propagation of CIR-associated energetic particles to high heliographic latitudes. We will present a model of the interplanetary magnetic field and show results from a numerical simulation which suggest that particles undergo significant latitudinal diffusion.

Original languageEnglish (US)
Pages (from-to)581-590
Number of pages10
JournalAdvances in Space Research
Volume23
Issue number3
StatePublished - 1999

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energetics
Cosmic rays
heliosphere
Pickups
polar regions
cosmic rays
Ions
cosmic ray
ion
ions
nuclei
propagation
sensors
particle acceleration
interplanetary magnetic fields
interactions
energetic particles
Spacecraft
spacecraft
shock

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Cite this

Particle transport and acceleration at corotating interaction regions. / Giacalone, Joe.

In: Advances in Space Research, Vol. 23, No. 3, 1999, p. 581-590.

Research output: Contribution to journalArticle

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