Discrete auroral arc, electrostatic shock and suprathermal electrons powered by dispersive, anomalously resistive field line resonance

W. Lotko, A. V. Streltsov, C. W. Carlson

doi:10.1029/1998gl900200

Discrete auroral arc, electrostatic shock and suprathermal electrons powered by dispersive, anomalously resistive field line resonance

DOI Web Site Web Site 被引用文献4件

書誌事項

公開日: 1998-12-15

権利情報

http://onlinelibrary.wiley.com/termsAndConditions#vor

DOI

10.1029/1998gl900200

公開者: American Geophysical Union (AGU)

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説明

<jats:p>Particle and field data from a 4100‐km‐altitude satellite pass through a 1.3‐mHz field line resonance, identified by ground‐based optical, magnetic and radar signatures, are compared with results from a two‐fluid MHD‐gyrokinetic simulation, including dispersively and resistively sustained parallel electric fields. It is shown that the resonance powers spatially adjacent up‐ and down‐going suprathermal‐electron fluxes, a 10‐km‐scale auroral arc and an imbedded electrostatic shock. Alfvén wave dispersion and anomalous plasma resistivity are key elements in the interpretation of the event.</jats:p>