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Detailed Reference Information |
Tao, C., Kataoka, R., Fukunishi, H., Takahashi, Y. and Yokoyama, T. (2005). Magnetic field variations in the Jovian magnetotail induced by solar wind dynamic pressure enhancements. Journal of Geophysical Research 110: doi: 10.1029/2004JA010959. issn: 0148-0227. |
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In order to understand the response of the Jovian magnetosphere to solar wind dynamic pressure enhancements, we investigate magnetic field variations observed by the Galileo spacecraft. The lack of solar wind monitoring just upstream of the Jovian magnetosphere is overcome by simulating a one-dimensional magnetohydrodynamic (MHD) propagation of the solar wind from the Earth. We identify the events with an increase of the solar wind dynamic pressure >0.25 nPa at the Jovian orbit. Characteristic magnetic field variations are found in the Jovian magnetosphere for all of the nine events. The rectangular waveform due to the Jovian rotation disappears for eight of the nine events. Magnetic field disturbances in the frequency range from 0.3 to 10 mHz are enhanced simultaneously. The maximum amplitude of the disturbances is in proportional to the maximum amplitude of the solar wind dynamic pressure. We suggest that the current sheet is greatly deformed and reconnection bursts are induced under the compressed magnetosphere. |
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BACKGROUND DATA FILES |
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Abstract |
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Keywords
Magnetospheric Physics, Magnetospheric configuration and dynamics, Magnetospheric Physics, Planetary magnetospheres (5443, 5737, 6033), Magnetospheric Physics, Solar wind/magnetosphere interactions, Planetary Sciences, Fluid Planets, Magnetospheres, Planetary Sciences, Solar System Objects, Jupiter, MHD simulation, Galileo spacecraft, Jovian magnetosphere, solar wind, magnetic field |
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Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
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