<RESEARCH REPORT>An MHD Simulation of the Solar Wind and Cometary Plasma : An MHD Model with Plasma Production

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概要

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• Interaction between the solar wind and the plasmas produced from cometary gases has been modeled by using a three-dimensional time-dependent magnetohydrodynamic (MHD) simulation with the cometary mass loading. The model reproduced several features observed by the recent missions to comet Halley. A weak bow shock was located at 3.2×10^5km in front of the comet. The magnetic field increased by a factor of 3.7 across this weak bow shock and continued to increase up to the contact surface (B_<max>/B_<IMF>=6∿8). The plasma temperature increased across the bow shock and decreased nearer to the comet. IMF lines were hung up on the comet and formed a long plasma tail in which the lobe field was quite strong and B_<lobe>/B_<IMF>∿5. A cold dense plasma sheet formed in the tail and this thin plasma sheet was oriented normal to the IMF direction.

• 核融合科学研究所の論文

著者

• Ashour‐abdalla M

  Institute Of Geophysics And Planetary Physics University Of California Los Angeles:department Of Phy

• Ogino T.

  The Research Institute of Atmospherics, Nagoya University

• Walker R.J.

  Institute of Geophysics and Planetary Physics University of California Los Angeles

• Ashour-Abdalla M.

  Institute of Geophysics and Planetary Physics University of California Los Angeles

• Ogino T.

  The Research Institute Of Atmospherics Nagoya University

関連論文

• An MHD Simulation of the Solar Wind and Cometary Plasma : An MHD Model with Plasma Production
• Three Dimensional MHD Simulation on the Stability of a High-Beta Tokamak
• Equilibria of the High-β Tokamak and Nonlinear Evolution of the m=1 Kink Ballooning Mode
• Nonlinear Evolution of the Resistive MHD Modes and Sawtooth Oscillation in a Toroidal Plasma

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