Neutral Line in the Magnetotail
In the open model of the magnetosphere, it is thought that magnetic field lines are transported from the dayside of the magnetosphere to the magnetotail as a consequence of the reconnection process operating on the dayside magnetopause (Dungey, 1963). In order that the flux content of the tail does not grow indefinitely it is required that the reconnection process operates also in the magnetotail and allows the field lines to return to the dayside. It has been suggested that this nightside reconnection does not proceed continuously but occurs explosively giving rise to the major magnetospheric phenomenon known as the substorm (Atkinson, 1966; Axford, 1967; Dungey, 1966).
KeywordsInterplanetary Magnetic Field Plasma Sheet Solar Wind Speed Expansion Phase Neutral Line
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