论文标题
磁斜性不稳定
Magnetoclinicity Instability
论文作者
论文摘要
在强可压缩的磁流体动力动力湍流中，大规模密度梯度和磁场之间的倾斜度产生了由密度方差介导的电动力（密度波动的强度）。这种效果称为``磁性磁智能''，预计将在天体可压缩湍流中大规模磁场产生中发挥重要作用。分析由于磁层面性效应而导致的大规模不稳定表明，在存在密度差异的情况下，在强平均密度梯度附近，平均磁场扰动在大尺度上不稳定。
In strongly compressible magnetohydrodynamic turbulence, obliqueness between the large-scale density gradient and magnetic field gives an electromotive force mediated by density variance (intensity of density fluctuation). This effect is named ``magnetoclinicity'', and is expected to play an important role in large-scale magnetic-field generation in astrophysical compressible turbulent flows. Analysis of large-scale instability due to the magnetoclinicity effect shows that the mean magnetic-field perturbation is destabilised at large scales in the vicinity of strong mean density gradient in the presence of density variance.
