Other
Scientific paper
May 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agusm..sm31a09s&link_type=abstract
American Geophysical Union, Spring Meeting 2001, abstract #SM31A-09 INVITED
Other
2724 Magnetopause, Cusp, And Boundary Layers, 2740 Magnetospheric Configuration And Dynamics, 2753 Numerical Modeling, 7835 Magnetic Reconnection
Scientific paper
This talk covers "flow-through reconnection," FTR, for the general IMF case as represented by a duskward IMF (IMF clock angle = 90 degrees). For the general IMF case, FTR occurs in the magnetospheric sash where the magnetic separatrix has its null point. Reconnection occurs all along the separatrix, from one null point across the dayside magnetopause to the null point in the other hemisphere. We show that the null point in the sash is stationary even though plasma is flowing through it tailward in excess of 200 km/s. In this case the sash acts as the long, narrow tongue of very weak field, described for the northward and southward IMF cases, within which the dissipation electric field exceeds the motional electric field. This case illustrates that the horn of the northward IMF case, the tongue of the southward IMF case, and the sash of the general case have the same function: to enable FTR when the magnetosphere is faced with the problem of operating sites of magnetic reconnection away from a stagnation point. This talk will also demonstrate how streamlines of the Poynting vector can be used to define the reconnection line along the magnetopause.
Erickson Gary M.
Maynard Nelson C.
Schoendorf Jacqueline A.
Siebert Keith D.
Siscoe George L.
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