Model of magnetosphere-ionosphere interactions in the field of auroral electrojets |
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| Authors: | P A Sedykh |
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| Institution: | 1.Institute of Solar-Terrestrial Physics,Irkutsk,Russia |
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| Abstract: | The magnetosphere and ionosphere are coupled into a power circuit by field-aligned currents. If there were only Hall current
in the ionosphere, the problem of magnetosphere-ionosphere interaction would not have arisen. Field-aligned currents could
be seen as emerging as a result of the break in the magnetospheric current across the tail, since the Hall current is divergence-free
and does not perform any work. In fact, the current in the ionosphere is complex. It always has a Pedersen component, and
the ionosphere is a real energy consumer. Together with energy, an extrinsic electrical current should flow into the ionosphere.
The current coming from the generator in front of the bow shock is a part of the extrinsic current. The aim of this paper
is to generalize the previously obtained partial solution to the problem of magnetosphere-ionosphere interactions in the region
of auroral electrojets, also taking into account the generation of the extrinsic current in front of the bow shock. |
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