Modeling of the Jovian Magnetosphere
Modeling of the Jovian Magnetosphere
复制标题
木星磁层的建模
DOI：
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发表时间：
2005
期刊：
影响因子：
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通讯作者：
E. Belenkaya
中科院分区：
文献类型：
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作者：
I. Alexeev;E. Belenkaya
抽象。本文提出了一个木星磁层的全球模型，它不仅在赤道平面和行星附近是有效的，因为大多数现有的模型是，而且在高纬度和磁层的外部区域。该模型包括木星偶极子，磁盘，和尾电流系统。尾电流与磁层顶闭合电流相结合。所有的内磁层磁场源都被磁层顶电流屏蔽。它保证了在整个磁层顶表面内磁层场的法向磁场分量为零。该模式通过改变磁层尺度（太阳下距离），为研究太阳风对磁层结构和极光活动的影响提供了可能。得到了磁层大小与太阳风动压psw（与psw-0.23成正比）的关系。这是一个更强的依赖性比在地球的磁层（psw-1/6）的情况下。木星的磁层模型是一个独特的模型，因为它允许人们研究太阳风和行星际磁场（IMF）的影响。
Abstract. This paper presents a global model of the Jovian magnetosphere which is valid not only in the equatorial plane and near the planet, as most of the existing models are, but also at high latitudes and in the outer regions of the magnetosphere. The model includes the Jovian dipole, magnetodisc, and tail current system. The tail currents are combined with the magnetopause closure currents. All inner magnetospheric magnetic field sources are screened by the magnetopause currents. It guarantees a zero normal magnetic field component for the inner magnetospheric field at the whole magnetopause surface. By changing magnetospheric scale (subsolar distance), the model gives a possibility to study the solar wind influence on the magnetospheric structure and auroral activity. A dependence of the magnetospheric size on the solar wind dynamic pressure psw (proportional to psw-0.23) is obtained. It is a stronger dependence than in the case of the Earth's magnetosphere (psw-1/6). The model of Jupiter's magnetospheric which is presented is a unique one, as it allows one to study the solar wind and interplanetary magnetic field (IMF) effects.