A Solitary Wave of a Relativistic Magnetosonic Wave Propagating Perpendicularly to a Magnetic Field
A Solitary Wave of a Relativistic Magnetosonic Wave Propagating Perpendicularly to a Magnetic Field
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垂直于磁场传播的相对论性磁声波的孤立波
DOI：
10.1063/1.865540
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发表时间：
1986
期刊：
影响因子：
--
通讯作者：
Y. Ohsawa
中科院分区：
文献类型：
--
作者：
Y. Ohsawa
本文发展了非线性磁声波垂直于磁场传播的相对论理论。基于相对论性双流体冷等离子体模型，研究了稳态磁声波的结构。相对论效应对于参数范围ωce/ωpe 1变得很重要，因为对于这样的等离子体参数，垂直于磁场和平行于波前的流体电子速度接近光速。发现即使在相对论模型中也存在定常孤波解。讨论了孤立波的一些性质，如孤子宽度等。
A relativistic theory for a nonlinear magnetosonic wave propagating perpendicularly to a magnetic field is developed. On the basis of a relativistic two‐fluid cold plasma model, the structure of a stationary magnetosonic wave is studied. Relativistic effects become important for the parameter regime ωce/ωpe≳1, because the fluid electron velocity perpendicular to a magnetic field and parallel to the wave front takes values close to the speed of light for such plasma parameters. It is found that there exists a stationary solitary wave solution even in the relativistic model. Some properties of the solitary wave, such as the soliton width, are discussed.