arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2108.05464astro-ph.HEphysics.plasm-ph
收藏

磁化粒子对超强电磁波的散射

Scattering of ultrastrong electromagnetic waves by magnetized particles

Andrei M. Beloborodov

摘要:

对中子星磁层发出的强大无线电波的观测提出了一个问题,即在强背景磁场$B_{bg}$中,强电波如何与粒子相互作用。这个问题是通过求解波中质点的运动来检验的。值得注意的是,具有振幅$E_0>B_{bg}$的波通过重复的共振事件泵送粒子能量,迅速达到辐射反应极限。结果,波以巨大的截面被散射。这一事实对快速射电暴和磁星的模型有影响。在波中加速的粒子会发出伽马射线,这会引发$e^\pm$雪崩,而不是无声的逃逸,波会产生X射线烟花。

英文摘要:

Observations of powerful radio waves from neutron star magnetospheres raise the question of how strong waves interact with particles in a strong background magnetic field $B_{bg}$. This problem is examined by solving the particle motion in the wave. Remarkably, waves with amplitudes $E_0>B_{bg}$ pump particle energy via repeating resonance events, quickly reaching the radiation reaction limit. As a result, the wave is scattered with a huge cross section. This fact has implications for models of fast radio bursts and magnetars. Particles accelerated in the wave emit gamma-rays, which can trigger an $e^\pm$ avalanche and, instead of silent escape, the wave will produce X-ray fireworks.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑