2014 Fiscal Year Annual Research Report
Determining the Plasma Parameters of Solar Prominences
| Project/Area Number |
25800108
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| Research Institution | Kyoto University |
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Principal Investigator |
HILLIER Andrew 京都大学, 理学(系)研究科(研究院), 研究員 (80624650)
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| Project Period (FY) |
2013-04-01 – 2015-03-31
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| Keywords | Numerical techniques / Statistical analysis / Partially ionized plasma / 国際研究者交流(イギリス) |
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| Outline of Annual Research Achievements |
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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