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1977•Geophysical Research LettersRequires access

Possible origins of time variability in Jupiter's outer magnetosphere, 1. Variations in solar wind dynamic pressure

Ferdinand V. Coroniti, Charles F. Kennel

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Abstract

We qualitatively examine the effects of changes in the solar wind dynamic pressure on the structure of a centrifugally driven planetary wind from Jupiter. We suggest that dynamic pressure variations can induce a transition between a super‐Alfvenic wind and sub‐Alfvenic breeze on Jupiter's dayside, which could possibly account for the observed large scale changes in the structure of Jupiter's outer magnetosphere.

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What this paper is about

We qualitatively examine the effects of changes in the solar wind dynamic pressure on the structure of a centrifugally driven planetary wind from Jupiter. We suggest that dynamic pressure variations can induce a transition between a super‐Alfvenic wind and sub‐Alfvenic breeze on Jupiter's dayside, which could possibly account for the observed large scale changes in the structure of Jupiter's outer magnetosphere.

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Available abstract

We qualitatively examine the effects of changes in the solar wind dynamic pressure on the structure of a centrifugally driven planetary wind from Jupiter. We suggest that dynamic pressure variations can induce a transition between a super‐Alfvenic wind and sub‐Alfvenic breeze on Jupiter's dayside, which could possibly account for the observed large scale changes in the structure of Jupiter's outer magnetosphere.

Key concepts: Magnetosphere, Jupiter (rocket family), Solar wind, Magnetosphere of Jupiter, Dynamic pressure, Physics, Geophysics, Astronomy

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