水星磁层观测研究  

Observational research on Mercury's magnetosphere

作　　者：钟俊 Zhong Jun(Key Laboratory of Earth and Planetary Physics,Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing 100029,China)

机构地区：[1]中国科学院地质与地球物理研究所地球与行星物理重点实验室,北京100029

出　　处：《地球与行星物理论评》2021年第5期483-494,共12页Reviews of Geophysics and Planetary Physics

基　　金：国家自然科学基金资助项目(41874198);中国科学院地质与地球物理研究所重点部署项目(IGGCAS-201904)。

摘　　要：水星磁层无辐射带、电离层、等离子层,大气层明显消失,只有微弱的外逸层.由于磁层尺度小,行星内核感应效应较为明显.行星空间环境显著区别于地球.“信使”号卫星对水星磁层的观测研究丰富了对水星空间环境的认识和理解.本文主要从磁层尺度及变化性、磁场重联及磁通量绳的形成、典型磁层动力学活动过程、磁层行星重离子时空变化、极端太阳事件下磁层响应特征等方面对水星磁层“信使”号观测研究进展进行简要总结.并对BepiColombo卫星探测进行相关问题研究展望.Mercury's miniature magnetosphere has no radiation belts,ionosphere,plasmasphere and atmosphere,only a weak exosphere.The induction effect of the planet's very large iron core is obvious.These result in a significant different space environment from that of the Earth.Observations of Mercury's magnetosphere by the MESSENGER spacecraft have enriched the knowledge and understanding of Mercury's space environment.Here,recent advances in Mercury's magnetosphere observational research are briefly summarized,from the aspects of magnetospheric scale and variability,magnetic reconnection and the formation of magnetic flux ropes,typical magnetospheric dynamic activity process,spatial and temporal variations of magnetospheric planetary heavy ions,magnetospheric response characteristics to the extreme solar events.Some related topics for the future exploration of BepiColombo mission are prospected.

关 键 词：水星 磁层 “信使”号 

分 类 号：P352[天文地球—空间物理学]