Instabilities associated with heat conduction in the solar wind and their consequences
Instabilities associated with heat conduction in the solar wind and their consequences
复制标题
与太阳风热传导相关的不稳定性及其后果
DOI：
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发表时间：
1970
期刊：
影响因子：
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通讯作者：
D. Forslund
中科院分区：
文献类型：
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作者：
D. Forslund
与太阳风中的大量热传导相关的是离子和电子分布函数的倾斜。结果表明，即使平行于 B 的净平衡电流为零，电子分布函数的这种碰撞偏斜也可以线性激发稳态太阳风中的无碰撞离子声波、静电离子回旋波、磁声波和离子回旋波。推导了这些不稳定波的初始生长速率，并讨论了波粒相互作用在加热离子和改变热导率和电导率方面的有效性。
Associated with the large heat conduction in the solar wind is a skewing of the ion and electron distribution functions. It is shown that this collisional skewing of the electron distribution function can linearly excite collisionless ion-acoustic, electrostatic ion cyclotron, magnetoacoustic, and ion cyclotron waves in the steady-state solar wind even though the net equilibrium current parallel to B is zero. The initial growth rates for these unstable waves are derived, and the effectiveness of the wave-particle interactions in heating the ions and in altering the thermal and electrical conductivities is discussed.