行星际磁场方向和强度对Hermean表面质量和能量沉积的影响
Effect of the interplanetary magnetic field orientation and intensity in the mass and energy deposition on the Hermean surface
摘要：
本研究的目的是模拟太阳风和Hermean磁层之间的相互作用。我们使用磁流体动力学程序PLUTO在球坐标系中对Hermean磁场进行轴对称多极展开，模拟了不同行星际磁场方向和强度的情况。通过固定太阳风的流体动力学参数，研究了行星际磁场对Hermean磁层拓扑结构的影响，从而改变了Hermean磁层的质量和能量沉积分布、积分质量沉积、椭圆孔径、开放磁场线覆盖面积和有效粒子溅射区域.模拟结果表明，重联区域和等离子体流入和能量沉积在行星表面上的局部最大值之间存在相关性。
英文摘要：
The aim of the present study is to simulate the interaction between the solar wind and the Hermean magnetosphere. We use the MHD code PLUTO in spherical coordinates with an axisymmetric multipolar expansion of the Hermean magnetic field, to perform a set of simulations with different interplanetary magnetic field orientations and intensities. We fix the hydrodynamic parameters of the solar wind to study the distortions driven by the interplanetary magnetic field in the topology of the Hermean magnetosphere, leading to variations of the mass and energy deposition distributions, the integrated mass deposition, the oval aperture, the area covered by open magnetic field lines and the regions of efficient particle sputtering on the planet surface. The simulations show a correlation between the reconnection regions and the local maxima of plasma inflow and energy deposition on the planet surface.
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