Fig. 3.
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Carrington maps of photospheric magnetic fields (top), coronal equipotential magnetic fields at 2.5 R⊙ (middle), and PFSS extrapolations (bottom) for CR 2074 (left column, solar minimum) and CR 1979 (right column, solar maximum). An animation of this figure available online shows the equipotential and PFSS magnetic fields in chronological order for all the CRs analysed in this work.
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