Fig. 5
Values in t = 20 000Hb/cb. a) The contour of (∇ × B)y normalized with B0/Hb. Positive value shows the clockwise poloidal fields. b) The contour of Toroidal field By normalized by B0. c) The contour of (∇ × B)y/By normalized by 
. The value is only calculated in the place where the strength of toroidal field exceeds 6 × 10-4B0.
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