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Observations of Hall Reconnection Physics Far Downstream of the X Line
R Mistry1, J P Eastwood1, C C Haggerty2
1The Blackett Laboratory, Imperial College London, London SW7 2AZ, United Kingdom.
Abstract:
Observations made using the Wind spacecraft of Hall magnetic fields in solar wind reconnection exhausts are presented. These observations are consistent with the generation of Hall fields by a narrow ion inertial scale current layer near the separatrix, which is confirmed with an appropriately scaled particle-in-cell simulation that shows excellent agreement with observations. The Hall fields are observed thousands of ion inertial lengths downstream from the reconnection X line, indicating that narrow regions of kinetic dynamics can persist extremely far downstream.
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