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arXiv 2006.14682astro-ph.EPphysics.space-ph
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木星和土星的辐射带

The radiation belts of Jupiter and Saturn

Elias Roussos, Peter Kollmann

摘要:

外行星轨道飞行器(伽利略、朱诺和卡西尼)的时代正在推进我们对木星和土星辐射带的结构、形成和演变的理解,远远超出了飞越飞行任务和地面观测时代的可能性。在对地球辐射带进行详细和长期观测的背景下,这些飞行任务将近20年的数据集突出表明,在将粒子加速到相对论性动能并限制其通量强度的过程中,哪些过程可以被认为是更普遍的,因此对大多数地外磁层来说是关键的,哪些过程反映了每个行星及其磁层系统的独特方面。在本章中,我们集中在现场辐射带观测的理论,模拟和地球观测站的相关测量的背景下。我们描述了木星和土星辐射带的平均状态和时间变化,并将它们与特定的物理过程联系起来。

英文摘要:

The era of outer planet orbiters (Galileo, Juno and Cassini) is advancing our understanding of how the radiation belts of Jupiter and Saturn are structured, form and evolve well beyond what had been possible during the age of flyby missions and ground-based observations. The nearly two decades-long datasets of these missions, in the context of detailed and long-term observations of Earth's radiation belts, highlight which of the processes that accelerate particles to relativistic kinetic energies and limit their flux intensity can be considered more universal, and thus key for most extraterrestrial magnetospheres, and which reflect the unique aspects of each planet and its magnetospheric system. In this chapter we focus on the in-situ radiation belt observations in the context of theory, simulations and relevant measurements by Earth-based observatories. We describe both the average state and the time variations of Jupiter's and Saturn's radiation belts and associate them with specific physical processes.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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