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The solar magnetic activity band interaction and instabilities that shape quasi-periodic variability

McIntosh, Scott W.; Riley, Pete; Kasper, Justin C. +10 more

Solar magnetism displays a host of variational timescales of which the enigmatic 11-year sunspot cycle is most prominent. Recent work has demonstrated that the sunspot cycle can be explained in terms of the intra- and extra-hemispheric interaction between the overlapping activity bands of the 22-year magnetic polarity cycle. Those activity bands a…