| Project/Area Number |
25871054
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
Plasma science
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| Research Institution | National Astronomical Observatory of Japan |
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Principal Investigator |
Zenitani Seiji 国立天文台, 理論研究部, 特任助教 (10623952)
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| Research Collaborator |
SHINOHARA Iku 宇宙科学研究所, 学際科学研究系, 准教授 (20301723)
NAGAI Tsugunobu 東京工業大学, 地球惑星科学, 教授 (60260527)
UMEDA Takayuki 名古屋大学, 太陽地球環境研究所・統合データサイエンスセンター, 講師 (40432215)
WADA Tomohide 筑波技術大学, 客員研究員
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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| Keywords | 磁気リコネクション / 衝撃波 / 磁気流体力学 / 相対論 / プラズマ粒子シミュレーション / 高速流体力学 / アルゴリズム / 相対論プラズマ / 磁気拡散 / 非線形力学 / パルサー風 |
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| Outline of Final Research Achievements |
We conducted basic researches on magnetic reconnection and magnetohydrodynamic (MHD) shocks. We proposed a new definition of the central region of magnetic reconnection and then further discussed particle dynamics in the reconnection magnetic geometry. Next we organized a fundamental algorithm to deal with relativistically-moving plasma distribution in particle-in-cell (PIC) simulations. By using a relativistic PIC simulation, we studied the electromagnetic balance in the central region of relativistic magnetic reconnection. We also developed a shock-capturing MHD code, which is publicly available. We studied the interaction between magnetic reconnection and MHD shocks. We also proposed a new mechanism to explain gamma-ray flares in a Crab pulsar system, by using MHD simulations.
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