Resistive MHD simulations of Ganymede's magnetosphere 1. Time variabilities of the magnetic field topology

Andreas Kopp, Wing Huen Ip

研究成果: 雜誌貢獻期刊論文同行評審

34 引文 斯高帕斯(Scopus)

摘要

The time-variable structure of Ganymede's magnetosphere is studied by means of resistive MHD simulations. Using the magnetometer measurements of the Galileo spacecraft in the first few Ganymede flybys as examples, we find that the plasma flow pattern inside the Ganymedian magnetosphere could be subject to significant changes. Furthermore, the boundary of the polar cap dividing the open magnetic field region from the closed magnetic field region could expand or contract as the Jovian magnetic field swings inward and outward. Such an effect could be related to the Hubble Space Telescope observations of large time variability of the atomic oxygen airglow near thepolar regions of Ganymede.

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文章編號1490
期刊Journal of Geophysical Research: Space Physics
107
發行號A12
DOIs
出版狀態已出版 - 12月 2002

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