Fig. 11.
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Analysis of the solar equatorward drift based on the azimuthal magnetic field (Bϕ). (a) Reconstructed butterfly diagram for Bϕ taken from Cameron et al. (2018). (b) Downgraded butterfly diagram with half the original latitudinal resolution used for the analysis. The drift speeds of different polarity regions are determined via linear fits and are indicated by dashed lines.
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