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Common Origin of Kinetic Scale Turbulence and the Electron Halo in the Solar Wind - Connection to Nanoflares

机译:动力学湍流的常见起源和太阳风中的电子光环 - 连接到纳米丝状物

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We summarize our recent studies on the origin of solar wind kinetic scale turbulence and electron halo in the electron velocity distribution function. Increasing observations of nanoflares and microscopic type III radio bursts strongly suggest that nanoflares and accelerated electron beams are common in the corona. Based on particle-in-cell simulations, we show that both the core-halo feature and kinetic scale turbulence observed in the solar wind can be produced by the nonlinear evolution of electron two-stream instability driven by nanoflare accelerated electron beams. The energy exchange between waves and particles reaches equilibrium in the inner corona and the key features of the turbulence and velocity distribution are preserved as the solar wind escapes into interplanetary space along open magnetic field lines. Observational tests of the model and future theoretical work are discussed.
机译:我们总结了我们最近关于电子速度分布功能中的太阳能动力学湍流和电子光环起源的研究。纳米粗斑和微观III型无线电突发的增加的观察结果强烈表明,纳米料和加速电子束在电晕中常见。基于粒子内模拟,我们表明,在太阳风中观察到的核心 - 光环特征和动力学湍流都可以通过纳米术加速电子束驱动的电子双流不稳定性的非线性演变来产生。波浪和颗粒之间的能量交换达到内电晕的平衡,并且湍流和速度分布的关键特征被保存,因为太阳风沿着开放磁场线逸出到行星间距中。讨论了模型和未来理论工作的观察试验。

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