The same meaning as Fig. 2 with different accretion rates, at the fixed initial magnetic field (B_o = 5 × 10¹² G) and initial spin period (P_o = 100 s), from the top to bottom, – solid line, – dashed line, and – dotted line, corresponding to the bottom fields of  ~10^7.5 G,  ~10⁸ G, and  ~10^8.5 G, respectively. The critical fastness parameter is set to be ω_c = 0.9.