[PCG25-P12] Examination of the relation between Jupiter's inner magnetosphere and magnetic reconfiguration events
Keywords:Jupiter, radiation belt, fast variation, magnetic reconfiguration
As a process which might explain such a fast variation in Jupiter's magnetosphere, an internally driving process, so-called 'substorm like event', is known (see Louarn et al., 2014). This phenomena is interpreted as a magnetic reconfiguration event occurred in the Jupiter's magnetotail region. Although it is revealed that major magnetic reconfiguration events generally affect the whole magnesphere from 10 to 80-120 Rj (Jupiter's radii), however, it has not been known whether the events affect the inner magnetosphere within 2 Rj.
In order to reveal unknown dynamics of the fast variations in JSR, we have tried to examine relationship between the fast variations and magnetic reconfiguration events. In this study we have used the plasma data explored by the Galileo orbiter in Jupiter's magnetosphere and also Jupiter's particular radio wave component in the hectrometer wave range (see Misawa et al., 2018) for searching magnetic reconfiguration events, and we have compared them with the daily JSR monitoring data at 327MHz observed with the radio telescopes of ISEE, Nagoya University, Japan. In the presentation, we will show results of the examination and discuss a linkage possibility between Jupiter's inner magnetosphere and magnetotail region.