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首页> 外文期刊>Planetary and space science >Kinetic Alfven waves in plasma sheet boundary layer-particle aspect analysis
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Kinetic Alfven waves in plasma sheet boundary layer-particle aspect analysis

机译：等离子薄板边界层-颗粒长宽比分析中的动力学Alfven波

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The particle aspect approach is adopted to investigate the trajectories of charged particles in the electromagnetic field of kinetic Alfven wave. Expressions are found for the dispersion relation, damping rate and associated currents in homogenous plasma. Kinetic effects of electrons and ions are included to study kinetic Alfven wave because both are important in the transition region. It is found that the ratio β of electron thermal energy density to magnetic field energy density and the ratio of ion to electron thermal temperature (T_i/T_e) affect the dispersion relation, damping-rate and associated currents in both cases (warm and cold electron limits). The treatment of kinetic Alfven wave instability is based on the assumption that the plasma consists of resonant and non-resonant particles. The resonant particles participate in an energy exchange process, whereas the non-resonant particles support the oscillatory motion of the wave.
机译：采用粒子长宽比方法研究带电粒子在动力学阿尔夫文波电磁场中的运动轨迹。可以找到均质等离子体中的色散关系，阻尼率和相关电流的表达式。电子和离子的动力学效应被包括在内以研究动力学Alfven波，因为两者在过渡区域中都很重要。发现在两种情况下（热和冷电子），电子热能密度与磁场能量密度之比β和离子与电子热温度之比（T_i / T_e）都会影响色散关系，阻尼率和相关电流。限制）。动态Alfven波不稳定性的处理基于这样一个假设，即等离子体由共振粒子和非共振粒子组成。共振粒子参与能量交换过程，而非共振粒子则支持波的振荡运动。

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