Instead, they display differential rotation; some layers move at different speeds than others. For example, the sun rotates fastest at its equator, slower at increasing latitudes and slowest at ...

The amplitude and sense of the inferred differential rotation are similar to what is seen on the Sun. This may be surprising, given the likely high degree of magnetic surface activity on the star ...

These thus represent a wide ensemble of models—some of them unphysical (for example, because of a decrease in density with increasing pressure). Nevertheless, the inferred ensemble of ...