Fluctuations and the radial variation of the interplanetary magnetic field

J. Randy Jokipii

doi:10.1029/GL002i010p00473

Fluctuations and the radial variation of the interplanetary magnetic field

J. Randy Jokipii

Lunar and Planetary Lab

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

8 Scopus citations

Abstract

Correlations between fluctuations in the solar wind velocity and interplanetary magnetic field can influence the observed average interplanetary magnetic field and its variation with heliocentric radius. The average radial magnetic field still varies as 1/r², but, depending on the radial variation of the correlations, the average azimuthal field could depart from the 1/r dependence expected for an Archimedian spiral. This effect could account in part for those observations which indicate a steeper than 1/r dependence for the average azimuthal interplanetary magnetic field.

Original language	English (US)
Pages (from-to)	473-475
Number of pages	3
Journal	Geophysical Research Letters
Volume	2
Issue number	10
DOIs	https://doi.org/10.1029/GL002i010p00473
State	Published - Oct 1975

ASJC Scopus subject areas

Geophysics
Earth and Planetary Sciences(all)

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abstract = "Correlations between fluctuations in the solar wind velocity and interplanetary magnetic field can influence the observed average interplanetary magnetic field and its variation with heliocentric radius. The average radial magnetic field still varies as 1/r², but, depending on the radial variation of the correlations, the average azimuthal field could depart from the 1/r dependence expected for an Archimedian spiral. This effect could account in part for those observations which indicate a steeper than 1/r dependence for the average azimuthal interplanetary magnetic field.",

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N2 - Correlations between fluctuations in the solar wind velocity and interplanetary magnetic field can influence the observed average interplanetary magnetic field and its variation with heliocentric radius. The average radial magnetic field still varies as 1/r², but, depending on the radial variation of the correlations, the average azimuthal field could depart from the 1/r dependence expected for an Archimedian spiral. This effect could account in part for those observations which indicate a steeper than 1/r dependence for the average azimuthal interplanetary magnetic field.

AB - Correlations between fluctuations in the solar wind velocity and interplanetary magnetic field can influence the observed average interplanetary magnetic field and its variation with heliocentric radius. The average radial magnetic field still varies as 1/r², but, depending on the radial variation of the correlations, the average azimuthal field could depart from the 1/r dependence expected for an Archimedian spiral. This effect could account in part for those observations which indicate a steeper than 1/r dependence for the average azimuthal interplanetary magnetic field.

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JF - Geophysical Research Letters

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Fluctuations and the radial variation of the interplanetary magnetic field

Abstract

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