Simultaneous Geotail and Wind Detections of Reconnection at the Subsolar and Flank Magnetopause

Details Simultaneous Geotail and Wind Detections of Reconnection at the Subsolar and Flank Magnetopause Simultaneous Geotail and Wind Detections of Reconnection at the Subsolar and Flank Magnetopause

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004agufmsm21b..02p&link_type=abstract

American Geophysical Union, Fall Meeting 2004, abstract #SM21B-02

Physics

7835 Magnetic Reconnection, 2724 Magnetopause, Cusp, And Boundary Layers, 2784 Solar Wind/Magnetosphere Interactions

Scientific paper

We report a Geotail-Wind conjunction at the magnetopause when both spacecraft observed the occurrence of reconnection at the same time at the subsolar and flank magnetopause during stable By dominated IMF. Wind, located at the dawn flank and 6.6 RE below the magnetic equator, observed plasma jets consistent with the presence of a tilted reconnection X-line poleward of the spacecraft. At around the same time the Geotail spacecraft encountered the magnetopause multiple times in the subsolar region. During the multiple magnetopause crossings, Geotail observed jet reversals and the reversal of the polarity of the normal magnetic field associated with flux transfer events which indicate the presence of an X-line in the vicinity of the spacecraft (and of the subsolar region). Taken together, the Geotail and Wind observations are consistent with the component merging model which predicts a tilted X-line hinged at the subsolar point during By dominated IMF.

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