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

J. Kóta; J. R. Jokipii

doi:10.1023/a:1005029713945

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

J. Kóta, J. R. Jokipii

Lunar and Planetary Lab

Research output: Contribution to journal › Article › peer-review

54 Scopus citations

Abstract

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 language	English (US)
Pages (from-to)	137-145
Number of pages	9
Journal	Space Science Reviews
Volume	83
Issue number	1-2
DOIs	https://doi.org/10.1023/a:1005029713945
State	Published - 1998

Keywords

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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abstract = "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.",

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AB - 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.

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KW - 3-D models

KW - Corotating structures

KW - Cosmic Rays

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

Abstract

Keywords

ASJC Scopus subject areas

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