| Budget Amount *help |
¥12,350,000 (Direct Cost: ¥9,500,000、Indirect Cost: ¥2,850,000)
Fiscal Year 2020: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2019: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2018: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
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| Outline of Final Research Achievements |
We promoted international joint research on particle acceleration phenomena of solar flares with the group of the new solar radio telescope ‘MUSER’ in China. We performed a detailed analysis of events simultaneously observed with the Nobeyama Radioheliograph (NoRH), which finished its scientific operation in March 2020, and MUSER, which was in the test observation phase. MUSER captured particle acceleration signatures above the magnetic reconnection site of a solar flare, and NoRH simultaneously observed a brightening corresponding to the acceleration below the magnetic reconnection site. These observational facts suggest that particle acceleration simultaneously takes place above and below the reconnection site. In addition, the temporal behavior in the frequency-drift characteristics of a lot of tiny radio bursts observed with MUSER indicates that the particle acceleration region was moving upward at high speed.
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