论文标题

血浆通过康普顿散射驱动的光子爆发驱动

Plasma wakes driven by photon bursts via Compton scattering

论文作者

Del Gaudio, Fabrizio, Fonseca, Ricardo, Silva, Luis O., Grismayer, Thomas

论文摘要

光子爆发的波长小于等离子体粒子间距离,可以通过康普顿散射驱动等离子体唤醒。我们在分析和数值上研究了不同的光子频率,光子通量和等离子磁化的基本过程。我们的结果表明,当光子能量密度位于一定阈值以上时,Langmuir和非凡模式会有效地驱动。光子爆发与磁化等离子体的相互作用具有引人注目的兴趣,因为生成的非凡模式可以在等离子体/真空边界处转化为纯电磁波。这可能是在高能量光子的强度来源的情况下,在天体物理场景中产生无线电波的机制。

Photon bursts with a wavelength smaller than the plasma inter-particle distance can drive plasma wakes via Compton scattering. We investigate this fundamental process analytically and numerically for different photon frequencies, photon flux, and plasma magnetization. Our results show that Langmuir and extraordinary modes are driven efficiently when the photon energy density lies above a certain threshold. The interaction of photon bursts with magnetized plasmas is of distinguished interest as the generated extraordinary modes can convert into pure electromagnetic waves at the plasma/vacuum boundary. This could possibly be a mechanism for the generation of radio waves in astrophysical scenarios in the presence of intense sources of high energy photons.

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