| Budget Amount *help |
¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2012: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
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| Outline of Final Research Achievements |
Using global numerical simulation, we elucidated the theta aurora formation processes when the dawn-dusk component of the interplanetary magnetic field switches. There appears a unipolar field-aligned current system on the theta aurora. In the magnetospheric source region of the currents, expanding slow mode disturbances convert plasma thermal energy to electromagnetic energy to maintain the steady state field-aligned current system. This energy conversion process represents the essential mechanism of the magnetospheric dynamo in general, not just limited to the theta aurora.
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