| 研究課題/領域番号 |
25800108
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| 研究種目 |
若手研究(B)
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| 配分区分 | 基金 |
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| 研究分野 |
天文学
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| 研究機関 | 京都大学 |
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研究代表者 |
HILLIER Andrew 京都大学, 理学(系)研究科(研究院), 研究員 (80624650)
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| 研究期間 (年度) |
2013-04-01 – 2015-03-31
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| 研究課題ステータス |
中途終了 (2014年度)
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| 配分額 *注記 |
3,770千円 (直接経費: 2,900千円、間接経費: 870千円)
2015年度: 1,040千円 (直接経費: 800千円、間接経費: 240千円)
2014年度: 1,040千円 (直接経費: 800千円、間接経費: 240千円)
2013年度: 1,690千円 (直接経費: 1,300千円、間接経費: 390千円)
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| キーワード | Numerical techniques / Statistical analysis / Partially ionized plasma / 国際研究者交流(イギリス) / Code Development / New analysis methods / 国際研究者交流（アメリカとイギリス） |
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| 研究実績の概要 |
Over the past 1 year I have achieved the following:
1) Determination of turbulent velocity spectra in prominences. Finding evidence of the energy injection scales and of both a cascade and inverse cascade of energy. Both the famous turbulent spectra: Kolmogorov and Kraichnan-Iroshnikov were discovered.
2) Full completion of the (PIP) code, a coding project led by myself. This is now ready and is being used for astrophysical research. New numerical methods were developed to improve the use of this code in astrophysical settings.
3) Discovery of ion-neutral separation as a result of the MHD Kelvin-Helmholtz instability in the partially ionized plasma of a prominence. In many case I have shown that an ion-neutral centrifuge is formed, creating a vortex with a strongly ionized core.
4) Model of slow-shock formation and dynamical evolution in a partially ionized plasma. The shocks show an interesting structure, with the formation of an actual shock highly dependent on the hydrodynamic Mach number.
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