Variation of the Jovian Magnetopause Under Constant Solar Wind Conditions: Significance of Magnetodisc Dynamics

It is generally believed that variations in the upstream solar wind (SW) and interplanetary magnetic field (IMF) conditions are main cause of changes Jupiter's magnetopause (JM) location. However, most previous pressure balance models for JM axisymmetric do not consider internal drivers, example, dynamics magnetodisc. We use three-dimensional global magnetosphere simulations to investigate variation under constant SW/IMF conditions. These show even without driving conditions, can exhibit dynamic variations, suggesting a range as large 50 Jupiter radii subsolar Our study shows interchange structures Jovian magnetodisc will introduce significant radial pressure, which drive The results provide important new context interpreting location dynamics, with key implications other internally mass-loaded and/or rapidly rotating systems.