Resolving the CME Confinement Paradox in the Highly Magnetic Environment of AB Doradus

AB Doradus is a young, active solar-type star whose large-scale coronal magnetic field is 100–1000 times more intense than that of the Sun. Magnetic fields of such magnitude are believed to prevent stellar coronal mass ejections (CMEs) from erupting. It is, therefore, surprising that coronal dimming was recently observed in AB Doradus, as coronal dimming is typically associated with CMEs. We propose that CMEs in AB Doradus occur in high-latitude regions where parts of the coronal magnetic field may be open. We modelled the global coronal magnetohydrodynamics for twenty-one CMEs, injecting CMEs into high-latitude regions with both closed and open magnetic field configurations. Our models demonstrate that CMEs in areas with open magnetic fields are not obstructed by the overlying magnetic field, suggesting that magnetic confinement of CMEs may be less common in young solar-type stars than previously assumed. For full details of this study, we direct the reader to Strickert et al. (2024).