Q. Y. Xiong, S. Y. Huang, J. Zhang, Z. G. Yuan, K. Jiang, H. H. Wu, R. T. Lin, L. Yu, Y. T. Tang
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引用次数: 0
摘要
磁场和粒子之间的能量转换是通过空间环境中的各种物理过程实现的。磁重联就是这样一种能够快速、大量释放能量的过程。重联产生的高速外流喷流会诱发以间歇结构为特征的湍流。在本研究中,我们将研究导磁场对重联过程中这些结构内部磁拓扑相关能量转换的影响。利用粒子在胞模拟和磁层多尺度任务的观测,我们的研究结果表明,重连接期间存在较大的导磁场会导致能量转换增加,并在湍流外流中产生 O 型拓扑结构。我们的研究结果提供了重要证据,证明了能量转换和再连接湍流外流中的磁拓扑结构与导磁场条件之间的关系。
Guide Field Dependence of Energy Conversion and Magnetic Topologies in Reconnection Turbulent Outflow
Energy conversion between the fields and the particles occurs through various physical processes within space environments. Magnetic reconnection stands out as one such process capable of rapidly and massively releasing energy. The high-speed outflow jets produced by reconnection can induce turbulence characterized by intermittent structures. In this study, we investigate the impact of guide field on the energy conversion associated with the magnetic topologies within these structures during reconnection. Utilizing both particle-in-cell simulations and observations from the Magnetospheric Multiscale mission, our findings suggest that a larger guide field present during reconnection leads to increased energy conversion as well as the generation of O-type topology structures within the turbulent outflow. Our results provide significant evidence on the relationships between energy conversion and magnetic topologies within turbulent outflow of reconnection and the guide field conditions.
期刊介绍:
Geophysical Research Letters (GRL) publishes high-impact, innovative, and timely research on major scientific advances in all the major geoscience disciplines. Papers are communications-length articles and should have broad and immediate implications in their discipline or across the geosciences. GRLmaintains the fastest turn-around of all high-impact publications in the geosciences and works closely with authors to ensure broad visibility of top papers.