日本地球惑星科学連合2014年大会

講演情報

ポスター発表

セッション記号 P (宇宙惑星科学) » P-EM 太陽地球系科学・宇宙電磁気学・宇宙環境

[P-EM34_30PO1] プラズマ宇宙:星間・惑星間空間,磁気圏

2014年4月30日(水) 18:15 〜 19:30 5階ポスター会場 (5F)

コンビーナ:*松清 修一(九州大学大学院総合理工学研究院流体環境理工学部門)、成行 泰裕(富山大学人間発達科学部)

18:15 〜 19:30

[PEM34-P02_30] 太陽風-イオンスケール磁気圏相互作用のハイブリッドシミュレーション

*中村 雅夫1 (1.大阪府立大学)

キーワード:イオンスケール磁気圏, 太陽風ミニ磁気圏相互作用, 3次元ハイブリッドシミュレーション

The interaction between the solar wind and the ion scale magnetosphere with a dipole magnetic field is investigated by a three-dimensional hybrid simulation. In the present study, the ion scale magnetosphere has a dayside stand-off distance which is several to a hundred times larger than the ion Larmor radius of the solar wind proton in the magnetic field strength at the dayside magnetopause boundary. The hybrid simulation treats the ions as kinetic super particles via particle-in-cell method and the electrons as a massless fluid. In the interaction between the solar wind and the magnetosphere, the interplanetary magnetic field (IMF) condition controls not only the reconnection regions but also the subsolar sheath flow due to the ion kinetic effects. Those influence the structures of the bow shock and the magnetopause boundary layer. We will also discuss the momentum transfer process from the solar wind into the magnetosphere and to the magnetized object.