Observations from various missions to Jupiter and Saturn showed that temperature of heavy-ion plasma contained in expanding discs around planets is increasing with radial distance. Magnetospheres of Jovian planets are successfully heating ions in a plasma fluid and magnetic field system. Turbulent fluctuations were suggested as a plasma heating mechanism. Suitability of turbulence to heat heavy-ion dense plasma and the source of turbulent fluctuations in Jupiter's magnetosphere is investigated. Relation between ion velocity variations and magnetic field fluctuations is derived from magnetohydrodynamic principles. This is then used to obtain turbulent power density contained in plasma fluid and magnetic field. Energy cascade in magnetohydrodynamic and kinetic subranges in different mediums is demonstrated. Measurements from magnetometer instrument on Juno mission to Jupiter are used to observe turbulent fluctuations in the magnetic field and to infer dynamics in plasma fluid. Extensive radial map of turbulent power density in Jupiter's magnetosphere inside and outside of the plasma disk is presented.

中文翻译：

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木星磁层重离子等离子体中的湍流功率理论

对木星和土星的各种任务的观测表明，行星周围膨胀的圆盘中包含的重离子等离子体的温度随着径向距离的增加而增加。木星行星的磁层成功地加热等离子体流体和磁场系统中的离子。湍流波动被认为是等离子体加热机制。研究了湍流加热重离子致密等离子体的适用性以及木星磁层中湍流波动的来源。离子速度变化和磁场波动之间的关系源自磁流体动力学原理。然后用它来获得等离子体流体和磁场中包含的湍流功率密度。演示了不同介质中磁流体动力学和动力学子范围的能量级联。朱诺号木星任务中的磁力计仪器的测量结果用于观察磁场的湍流波动并推断等离子体流体的动力学。展示了等离子盘内部和外部木星磁层中湍流功率密度的广泛径向图。