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arXiv 2201.13220physics.plasm-phphysics.ao-ph
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相对论逃逸电子雪崩动力学中无限正电子反馈的判据

The criterion for infinite positron feedback in dynamics of relativistic runaway electron avalanches

E. Stadnichuk, E. Svechnikova

摘要:

雷暴大尺度电场加速的相对论逃逸电子雪崩是大气γ辐射源之一。在强电场中,相对论反馈可以使RREAs倍增。无限的相对论反馈使雪崩自我维持,并假设可以引起地面伽马射线闪光(TGF)。由于正电子反馈对直接观测到的电场强度起主导作用,本文介绍了一种研究正电子引起的相对论反馈的动力学方法。利用这种方法,我们导出了雷暴中正电子无限反馈的判据。所发现的准则允许获得雷暴电场参数所需的无限正电子反馈的任何高度。文中还讨论了产生雷暴条件的可能性。

英文摘要:

Relativistic runaway electron avalanches (RREA) accelerated by thunderstorm large-scale electric fields are one of the sources of atmospheric gamma radiation. In strong electric fields, RREAs can multiply by the relativistic feedback. Infinite relativistic feedback makes avalanches self-sustainable and hypothetically can cause a terrestrial gamma-ray flash (TGF). This paper introduces a kinetic approach to study the relativistic feedback caused by positrons since positron feedback dominates for the directly observed electric field strengths. With this approach, the criterion for infinite positron feedback within thunderstorms is derived. Discovered criterion allows obtaining the thunderstorm electric field parameters required for infinite positron feedback for any altitude. The possibility of derived thunderstorm conditions is discussed.

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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