| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2017: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2015: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Outline of Final Research Achievements |
Magnetohydrodynamics (MHD) is a powerful mean to describe astrophysical plasma activities. This research aims to propose the dissipative MHD as a new paradigm for realistic astrophysical plasma simulations.
We conduct dissipative MHD simulations of magnetic reconnection that is a fundamental energy-release mechanism in astrophysical plasma. The simulation reveals that the viscosity and the thermal conduction, as well as the electric resistivity, play an fundamental role for collisional reconnection. We further conduct a first-principle simulation of magnetic reconnection in kinetic plasma. We find a significant rise of an effective viscosity in association with reconnection, implying that it may be important also in collisionless reconnection.
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