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arXiv 2310.05830astro-ph.HE
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射电脉冲星共振加速电子

Radio pulsars resonantly accelerating electrons

Zaza N. Osmanov, Swadesh M. Mahajan

AI总结:

本研究基于波-波共振过程,通过求解与电磁场最小耦合的克莱因-戈登方程,提出射电脉冲星磁层中电子可经与强电磁波的共振相互作用被加速至极端相对论性能量,该机制适用于毫秒到秒级周期的脉冲星。

摘要:

基于近期已被证实的波-波共振过程,本研究表明电子可在射电脉冲星的磁层中被加速至极端相对论性能量。该能量提升过程通过电子波(由克莱因-戈登(Klein-Gordon,KG)方程描述)与强电磁(electromagnetic,EM)波同步运动时的共振相互作用实现;KG波/粒子会持续从电磁场中汲取能量。在对一般理论的简要重述中,研究通过求解与电磁场最小耦合的KG方程,探究了经共振增强的高能电子态。研究还探讨了与电磁辐射同相传播的一类受限解(仅为$ζ=ωt-kz$的函数),以此作为射电脉冲星中所提出的电子加速机制的可能基础。研究表明,这种波-波共振能量提升机制可在周期范围从毫秒级到常规值(约1秒)的广泛射电脉冲星类别中发挥作用;它可推动磁层电子获得从数百TeV(毫秒脉冲星)到10 ZeV(常规脉冲星)的能量。

英文摘要:

Based on the recently demonstrated resonant wave-wave process, it is shown that electrons can be accelerated to ultra-relativistic energies in the magnetospheres of radio pulsars. The energization occurs via the resonant interaction of the electron wave (described by a Klein-Gordon (KG) equation) moving in unison with an intense electromagnetic (EM) wave; the KG wave/particle continuously draws energy from EM. In a brief recapitulation of the general theory, the high energy (resonantly enhanced) electron states are investigated by solving the KG equation, minimally coupled to the EM field. The restricted class of solutions, that propagate in phase with EM radiation (functions only of $ζ=ωt-kz$), are explored to serve as a possible basis for the proposed electron energization in the radio pulsars. We show that the wave-wave resonant energization mechanism could be operative in a broad class of radio pulsars with periods ranging from milliseconds to the normal values ($\sim 1$ sec); it could drive the magnetospheric electrons to acquire energies from $100$s of TeVs (millisecond pulsars) to $10$ ZeVs (normal pulsars).

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。

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