Shock Formation in a Collision of Two Plasmas with Their Relative Velocity Oblique to the Magnetic Field(Gases, plasmas, electric discharges, and beams)
スポンサーリンク
概要
- 論文の詳細を見る
Shock formation processes arising from a collision of two plasmas in an external magnetic field B_0 are studied with electromagnetic particle simulations, for the case in which one plasma (exploding plasma) has a high velocity v_0 while the other (surrounding plasma) is at rest with a lower density ; the ion gyroradius for the speed v_0 is much greater than the width of the shock transition region. The ion motion across B_0 induces strong electric field in the direction -v_0 x B_0, which accelerates the surrounding ions in this direction in the early phase. Then, the change in the velocities of the two groups of ions due to the magnetic force leads to the formation of two pulses near the front of the exploding ions, which evolve into forward and reverse shock waves. The effect of the angle θ between v_0 and B_0 on plasma behavior is examined. The two pulses appear in time of the order of the ion gyroperiod. As θ decreases from 90°, however, it takes a longer time for the two pulses to form.
- 社団法人日本物理学会の論文
- 2008-05-15
著者
-
Yamauchi Koji
Department Of Physics Nagoya University
-
Yamauchi Koji
Department Of Chemistry Faculty Of Science Osaka University
-
Ohsawa Yukiharu
Department Of Physics Nagoya University
関連論文
- Electromagnetic Fields in Nonlinear Magnetosonic Waves with Relativistic Propagation Speeds
- Preparation and Characterization of (Amino carboxamidato-N,N')(chloro)(dimethyl sulfoxide-S)-platinum(II)Complexes
- Amplitude Oscillation of Shock Waves in a Magnetized Plasma (Gases, Plasmas and Electric Discharges)
- Detrapping of Energetic Electrons from Curved Shock Front(Gases, plasmas, electric discharges, and beams)
- Envelope Shock Waves in Interactions of Plasma Waves of Random Phase
- Evolution of Magnetohydrodynamic Waves and Acceleration of Particles in a Collision of Two Plasmas(Gases, plasmas, electric discharges, and beams)
- Evolution of Oblique Shock Waves in a Reversed External Magnetic Field and Associated Electron Acceleration(Gases, plasmas, electric discharges, and beams)
- Effect of Ion Composition on Magnetosonic Waves(Gases, plasmas, electric discharges, and beams)
- Nonlinear Waves along a Magnetic Field in a Multi-Ion-Species Plasma : Fluids, Plasmas, and Electric Discharges
- Shock Formation in a Collision of Two Plasmas with Their Relative Velocity Oblique to the Magnetic Field(Gases, plasmas, electric discharges, and beams)
- Low-frequency Oblique Waves in Magnetized Electron-Positron-Ion Plasmas(Gases, Plasmas and Electric Discharges)
- Collisionless Damping of Low-Frequency Magnetosonic Pulses in a Two-Ion-Species Plasma
- Prodrction of Ultrarelativistic Electrons by Obliqre Magnetosonic Shock Waves
- Shock Structures and Electron Energies in Wave and de Hoffmann-Teller Frames
- Propagation of Solitary Pulses in Interactions of Plasma Waves. II
- Envelope Shock Waves in Interactions of Longitudinal Plasma Waves of Random Phase
- Envelope Shock Waves in Interactions of Plasma Waves of Random Phase. II
- Effect of Magnetic-Field Gradient on Positron Acceleration along the Magnetic Field in an Oblique Shock Wave
- Shock Structures and Electron Energies in Wave and de Hoffmann–Teller Frames
- Electromagnetic Fields in Nonlinear Magnetosonic Waves with Relativistic Propagation Speeds