论文标题
温度各向异性对测量声模式动力学的影响
Effect of temperature anisotropy on the dynamics of geodesic acoustic modes
论文作者
论文摘要
在这项工作中，我们重新审视了测量声模式（GAM）的线性陀螺仪，并得出了离子任意平衡分布函数的一般分散关系。然后使用双 - 麦克斯韦分布来研究离子温度各向异性对GAM频率和生长速率的影响。我们发现，离子温度各向异性对GAM频率和生长速率都具有明智的修改，因为两者都随着各向异性而增加，并且这些结果受电子与离子温度比的强烈影响。
In this work, we revisit the linear gyro-kinetic theory of geodesic acoustic modes (GAMs) and derive a general dispersion relation for an arbitrary equilibrium distribution function of ions. A bi-Maxwellian distribution of ions is then used to study the effects of ion temperature anisotropy on GAM frequency and growth rate. We find that ion temperature anisotropy yields sensible modifications to both the GAM frequency and growth rate as both tend to increase with anisotropy and these results are strongly affected by the electron to ion temperature ratio.
