On Two-Stream Instability in Pulsar Magnetospheres
On Two-Stream Instability in Pulsar Magnetospheres
复制标题
脉冲星磁层中的双流不稳定性
DOI：
10.1086/165546
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发表时间：
1987
期刊：
影响因子：
--
通讯作者：
V. Usov
中科院分区：
文献类型：
--
作者：
V. Usov
如果来自脉冲星环境的电子-正电子等离子体流是静止的，双流不稳定性就没有足够的时间在脉冲星磁层中发展。在这种情况下，流出的电子-正电子等离子体聚集成单独的云。这些云沿着磁场线移动，当它们远离脉冲星时就会分散。在距脉冲星表面约10的8次方cm处，高能粒子会追上前面的低能粒子，在这一区域内，等离子体粒子的能量分布呈双峰型，可能产生双流不稳定性。不稳定性的增长速度足以满足其发展。17篇参考文献。
If the electron-positron plasma flow from the pulsar environment is stationary, the two-stream instability does not have enough time to develop in the pulsar magnetosphere. In that case the outflowing electron-positron plasma gathers into separate clouds. The clouds move along magnetic field lines and disperse as they go farther from the pulsar. At a distance of about 10 to the 8th cm from the pulsar surface, the high-energy particles of a given cloud catch up with the low-energy particles that belong to the cloud going ahead of it. In this region of a pulsar magnetosphere, the energy distribution of plasma particles is two-humped, and a two-stream instability may develop. The growth rate of the instability is quite sufficient for its development. 17 references.