A Survey of Magnetic Field Line Curvature in Jovian Dawn Magnetodisc
A Survey of Magnetic Field Line Curvature in Jovian Dawn Magnetodisc
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DOI：
10.1029/2023gl106971
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发表时间：
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影响因子：
5.2
通讯作者：
W. D. Gu;Z. Yao;Y. Wei;T. Qin;B. Zhang;Y. Xu;W. Dunn;P. Delamere;Y. N. Chen
中科院分区：
文献类型：
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作者：
W. D. Gu;Z. Yao;Y. Wei;T. Qin;B. Zhang;Y. Xu;W. Dunn;P. Delamere;Y. N. Chen
木星的磁层是高度动态的，受到太阳风和与行星快速旋转和木卫一火山活动相关的内部过程的影响。伴随着磁层动力学驱动的质量和能量循环，磁位形也发生了剧烈的变化。表征磁结构的关键参数之一是磁力线曲率（FLC），它通常描述磁力线的拉伸程度。曲率是影响粒子行为的关键，例如，可能导致极光粒子沉淀的俯仰角散射。在这项工作中，提出了一种方法来研究的真实的时间磁场FLC木星电流片使用的磁场数据从朱诺号航天器。结果表明，离子和相对论电子的FLC散射在木星磁层中是普遍存在的，这为理解粒子行为提供了重要的见解。
The Jovian magnetosphere is highly dynamic, influenced by both solar wind and internal processes associated with the rapid planetary rotation and Io's volcanic activities. Accompanying the mass and energy circulations driven by the magnetospheric dynamics, the magnetic configuration also changes dramatically. One of the crucial parameters to characterize the magnetic configuration is magnetic field line curvature (FLC), which generally describes how stretched the field line is. The curvature is pivotal to influence particle behaviors, for example, pitch angle scattering which may lead to auroral particle precipitation. In this work, a method is proposed to investigate the real‐time magnetic FLC in Jovian current sheet using the magnetic field data from the Juno spacecraft. The results indicate that the FLC scattering of ions and relativistic electrons are common in Jovian magnetosphere, providing a crucial insight to understand the particle behaviors.