论文标题
从磁重新连接中转换Alfvén波的模式增强了Aurora Borealis的能源
Mode Converting Alfvén Waves from Magnetic Reconnection Enhancing the Energy Source for the Aurora Borealis
论文作者
论文摘要
先前的研究得出的结论是，在磁重新连接期间产生的霍尔磁场结构被动力学alfvén波（KAW）带走。在这里，我们应用了一个动力学模拟，其离子/电子质量比更接近其自然值，并发现降低的阻尼速率允许KAW转换为剪切alfvén波（SAW）。对于磁尾重新连接，这些SAW提供了有效的波能运输，从而通过高于先前的估计值来增强Aurora Borealis的能量输入。
Previous studies have concluded that the Hall magnetic field structures generated during magnetic reconnection are carried away by kinetic Alfvén waves (KAW). Here we apply a kinetic simulation with an ion/electron mass ratio closer to its natural value and find that much-reduced damping rates permit the KAW to convert into shear Alfvén waves (SAW). For magnetotail reconnection these SAW provides efficient transport of wave energy, enhancing the energy input for the Aurora Borealis by orders of magnitude above previous estimates.
