| Budget Amount *help |
¥18,070,000 (Direct Cost: ¥13,900,000、Indirect Cost: ¥4,170,000)
Fiscal Year 2012: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2011: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2010: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2009: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
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| Research Abstract |
We improved the interplanetary scintillation measurement system of the Solar-Terrestrial Environment Laboratory of Nagoya University, and investigated long-term evolution of the peculiar solar wind structure observed at Cycle 24 solar minimum using data obtained from the system. As result, we found that the solar wind structure evolves with rising solar activity in Cycle 24 rather differently from that in the past cycle. We also found that the solar wind density globally drops in Cycle 24.Our result suggests that the heliosphere is significantly shrinking, and this is of great importance from viewpoint of exploration of the outer heliosphere and study of the space climate.
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