The polar heliospheric magnetic field

Research output: Contribution to journalArticle

276 Citations (Scopus)

Abstract

We suggest that the polar heliospheric magnetic field, at large heliocentric distances, may deviate considerably from the generally accepted Archimedean spiral. Instead, we suggest that the large‐scale field near the poles may be dominated by randomly‐oriented transverse magnetic fields with magnitude much larger than the average spiral. The average vector field is still the spiral, but the average magnitude may be much larger. In addition, the field direction is transverse to the radial direction most of the time instead of being nearly radial. This magnetic‐field structure has important consequences for the transport of cosmic rays. Preliminary model calculations suggest changes in the radial gradient of galactic cosmic rays which may improve agreement with observations.

Original languageEnglish (US)
Pages (from-to)1-4
Number of pages4
JournalGeophysical Research Letters
Volume16
Issue number1
DOIs
StatePublished - 1989

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cosmic ray
magnetic field
magnetic fields
cosmic rays
near fields
poles
gradients
calculation

ASJC Scopus subject areas

  • Geophysics
  • Earth and Planetary Sciences(all)

Cite this

The polar heliospheric magnetic field. / Jokipii, J. Randy; Kóta, J.

In: Geophysical Research Letters, Vol. 16, No. 1, 1989, p. 1-4.

Research output: Contribution to journalArticle

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