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首页> 外文期刊>The Astrophysical journal >SIMULATIONS OF ENERGETIC PARTICLES INTERACTING WITH DYNAMICAL MAGNETIC TURBULENCE
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SIMULATIONS OF ENERGETIC PARTICLES INTERACTING WITH DYNAMICAL MAGNETIC TURBULENCE

机译:动力粒子与动力磁湍流相互作用的模拟

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We explore the transport of energetic particles in interplanetary space by using test-particle simulations. In previous work such simulations have been performed by using either magnetostatic turbulence or undamped propagating plasma waves. In the current paper we simulate for the first time particle transport in dynamical turbulence. To do so we employ two models, namely the damping model of dynamical turbulence and the random sweeping model. We compute parallel and perpendicular diffusion coefficients and compare our numerical findings with solar wind observations. We show that good agreement can be found between simulations and the Palmer consensus range for both dynamical turbulence models if the ratio of turbulent magnetic field and mean field is δB/B0?=?0.5.
机译:通过使用测试粒子模拟,我们探索了高能粒子在行星际空间中的传输。在以前的工作中,已经通过使用静磁湍流或未阻尼的传播等离子体波进行了这种模拟。在本文中,我们首次模拟了动态湍流中的粒子传输。为此,我们采用两个模型,即动态湍流的阻尼模型和随机扫描模型。我们计算平行和垂直扩散系数,并将我们的数值发现与太阳风观测值进行比较。我们表明,如果湍流磁场和平均磁场之比为δB/ B0?=?0.5,则对于两种动力学湍流模型,仿真和Palmer共识范围之间都能找到良好的一致性。

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