Distribution of the plasma β and poloidal magnetic fields. Colors represent the ratio (β) of the time-averaged gas pressure to the magnetic pressure of the time-averaged magnetic field. The solid and dashed lines reflect the magnetic fields on the poloidal plane. The purple line indicates the interface at which β = 1. Panel (A): Runs R22 (left) and R23 (right). Panel (B): Runs R24 (left) and N24 (right).