Transverse quasilinear relaxation in an inhomogeneous magnetic field
Transverse quasilinear relaxation in an inhomogeneous magnetic field
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非均匀磁场中的横向拟线性弛豫
DOI：
10.1103/physreve.58.2474
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发表时间：
1998
影响因子：
2.4
通讯作者：
M. Lyutikov
中科院分区：
文献类型：
--
作者：
M. Lyutikov
考虑了脉冲星磁层非均匀磁场中回旋加速器-切伦科夫不稳定性的横向拟线性弛豫。我们发现准线性状态，其中通过强磁化对等离子体传播的光束的动能回旋切伦科夫不稳定性被由于绝热不变量守恒而在非均匀场中产生的力饱和。所得的波强度通常具有非幂律频率依赖性，但在较宽的频率范围内可以通过谱指数为-2的幂律很好地近似。出现的光谱和通量与从脉冲星观测到的一致。
Transverse quasilinear relaxation of the cyclotron-Cherenkov instability in the inhomogeneous magnetic field of pulsar magnetospheres is considered. We find quasilinear states in which the kinetic cyclotron-Cherenkov instability of a beam propagating through strongly magnetized pair plasma is saturated by the force arising in the inhomogeneous field due to the conservation of the adiabatic invariant. The resulting wave intensities generally have nonpower law frequency dependence, but in a broad frequency range can be well approximated by the power law with the spectral index -2. The emergent spectra and fluxes are consistent with the one observed from pulsars.