The dipole tilt angle dependence of the bow shock for southward IMF: MHD results

摘要: Abstract The location and shape of the Earth׳s bow shock depend on properties upstream solar wind, as well size downstream magnetopause. Many studies have suggested that influence dipole tilt angle magnetopause is significant, especially at high-latitude region, however, to date there no model which depends angle. Using a physics-based global magnetohydrodynamic (MHD) model, Space Weather Modeling Framework (SWMF), we investigate effect shock, our results show (1) subsolar standoff distance north-south asymmetry increase with increasing angle; (2) positively increasing, flaring increases in northern hemisphere but keeps almost unchanged southern hemisphere, rotational slightly decreases rapidly hemisphere; (3) symmetric.