Three-dimensional Multispecies Simulation of the Solar Wind Interaction with Mars Under Different Interplanetary Magnetic Field Orientations

Abstract Without the intrinsic magnetic field, solar wind interaction with Mars can be significantly different from Earth and other magnetized planets. In this paper, we investigate how a global configuration of structures, consisting bow shock, induced magnetosphere, magnetotail, is modulated by interplanetary field (IMF) orientation. A 3D multispecies numerical model established to simulate under IMF directions. The results show that shock size including subsolar distance terminator radius increases Parker spiral angle, as same case magnetotail radius. location shape polarity reversal layer inverse in are displaced y < 0 sector for nonzero flow-aligned component, consistent previous analytical solutions observations. responses Martian directions suggest external plays an important role unmagnetized