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Jianchuan Zheng et al 2016 ApJ 826 6

Magnetic imaging data from SDO is used to study the rotation of sunspots from two different solar cycles. The rotational direction and magnetic polarity of the sunspots switch between the two cycles.

Travis S. Metcalfe et al 2016 ApJ 826 L2

The Sun may be in a transitional evolutionary phase, suggest data from rotation–age stellar relations. These data indicate that beyond middle-age, magnetic braking efficiency in stars is dramatically reduced.

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