Applications of the Petra-M simulation code for space physics

We present applications of the 3D full-wave solver, Petra-M code, for planetary magnetospheric plasma wave physics. Due to the interaction between the solar wind and planetary magnetic fields, the planetary magnetosphere has a complex shape, such as compressed on the dayside and stretched on the nightside, respectively, and dawn-dusk asymmetries. Plasma waves in different frequencies and polarizations are widely detected on magnetized planets. Extensive numerical efforts have been continuous to understand detected plasma waves by in-situ observation and their effect on the planetary magnetospheric environment; however, realistic magnetospheric configurations cannot be easily adopted into the existing codes. One of the advantages of the finite element method (FEM) simulation code is that the boundary shapes, plasma density profiles, and magnetic field configurations are easily adapted; thus, a 2D full-wave code (FW2D) using the FEM method has been applied to various magnetic field configurations. Although the previous 2D simulations successfully examined plasma waves in dipolar magnetic field configurations, because planetary magnetospheres have asymmetric structures, 3D wave modeling is desirable to understand the wave properties detected in space. Therefore, we leverage the current effort of the radio frequency (RF) wave project and adapt a 3D full-wave simulation Petra-M code for modeling RF wave propagation in planetary magnetospheres. This presentation demonstrates the ultra-low frequency (ULF) and electromagnetic ion cyclotron (EMIC) waves in Earth's magnetosphere in realistic magnetic field topologies.