有效的带电粒子传播方法
Efficient charged particle propagation methods
摘要：
在天体物理学中，对最高能量宇宙射线来源的寻找仍在继续。为了取得进一步的进展，不仅需要更好的观测站，还需要更逼真的数值模拟。我们比较不同的方法数值试验模拟的UHECRs在IGMF，并表明，所有的方法提供正确的统计传播特性的粒子在他们的扩散行为的手段。通过收敛性测试，我们表明，所需的要求不同的方法，并最终揭示所需的模拟时间的显着差异。
英文摘要：
In astrophysics, the search for sources of the highest-energy cosmic rays continues. For further progress, not only ever better observatories but also ever more realistic numerical simulations are needed. We compare different approaches for numerical test simulations of UHECRs in the IGMF and show that all methods provide correct statistical propagation characteristics of the particles in means of their diffusive behaviour. Through convergence tests, we show that the necessary requirements for the methods differ and ultimately reveal significant differences in the required simulation time.
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