Research on solar active regions and flare occurrence through a numerical and observational approach
| Project/Area Number |
26887046
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| Research Category |
Grant-in-Aid for Research Activity Start-up
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| Allocation Type | Single-year Grants |
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| Research Field |
Astronomy
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| Research Institution | National Astronomical Observatory of Japan |
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Principal Investigator |
Toriumi Shin 国立天文台, 太陽天体プラズマ研究部, 特任助教 (30738290)
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| Project Period (FY) |
2014-08-29 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2015: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
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| Keywords | 太陽物理学 / 活動領域 / 黒点 / フレア / 磁気流体力学 |
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| Outline of Final Research Achievements |
By combining magnetohydrodynamic simulation and satellite observation data analysis, we conducted a research on the formation mechanism of sunspots and active regions and the occurrence of solar flares. As a result, we revealed for the first time that the vigorous explosions and jet ejections seen in the developing phase of the sunspots are caused by magnetic reconnection, which is driven by magneto-convective evolution. Also, we carried out statistical data analysis on the active regions that produced large-scale solar flares and found that, for example, the flare duration is correlated with the length of magnetic fields, larger active regions have less coronal mass ejections, etc.
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Report
(3 results)
Research Products
(31 results)
