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Fig. 4


Amplitude of the pulsar wind magnetic field for a) a surface dipole field l = 1,m = 1; b) quadrupole l = 2,m = 2; and c)l = 3,m = 3. Panels a) to c) are plotted with the same color scale. On these panels, the spiral structure is the pulsar wave. Comparison ratio a, see Eq. (22) for modes d) l = 2,m = 2; e)l = 3,m = 2; and f) l = 3,m = 3. Panels d) to f) are plotted with the same color scale.

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