An Active Auroral Streamer And The Concurrent Magnetotail Activity

Details An Active Auroral Streamer And The Concurrent Magnetotail Activity An Active Auroral Streamer And The Concurrent Magnetotail Activity

Dec 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009agufmsm53d..02l&link_type=abstract

American Geophysical Union, Fall Meeting 2009, abstract #SM53D-02

Physics

[2704] Magnetospheric Physics / Auroral Phenomena, [2736] Magnetospheric Physics / Magnetosphere/Ionosphere Interactions, [2744] Magnetospheric Physics / Magnetotail

Scientific paper

We report the observations of an active auroral streamer and the concurrent activity in the magnetotail monitored by the five THEMIS satellites. The auroral streamer was a low intensity feature obtained by the Rankin Inlet EMCCD ASI. It emerged from the diffuse aurora, advancing poleward and then retreating equatorward. This occurred during a major THEMIS tail conjunction period and the ground projections of THEMIS satellites were near the MLT of the auroral streamer. During this interval, tailward plasma flows were observed by the five THEMIS satellites, followed by earthward plasma flows by four of them. These plasma flows were mostly field-aligned and had low speeds of 40-100 km/s. The possible connection between the ground auroral activity and the magnetotail activity will be discussed

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