Analyses of solar rotation and activity, and their variations, can improve the understanding of
the formation and interaction of the solar-activity bands and therefore give important …

Long-term variations of solar differential rotation and sunspot activity are investigated
through re-analyzing the data on parameters of the differential-rotation law obtained by …

The extended Greenwich data set consisting of positions of sunspot groups is used for the
investigation of cycle-related variations of the solar rotation in the years 1874–1981 …

The sunspot position published in the data bases of the Greenwich Photoheliographic
Results (GPR), the US Air Force Solar Optical Observing Network and National Oceanic and …

Solar g-modes are global oscillations that would exist primarily in the radiative zone (RZ)
and would be excited by either convective overshoot or nuclear burning in the core. Wolff …

The important part played by impulses of the torque has been substantiated by solar cycles
of different length and diverse function. It is now thought possible to calculate the epochs …

Measuring solar torsional oscillations using sunspot motions ADS Classic is now deprecated.
It will be completely retired in October 2019. This page will automatically redirect to the new …

Solar activity undergoes a variation over timescales of several months known as Rieger-type
periodicity, which usually occurs near maxima of sunspot cycles. An early analysis showed …

The solar equatorial rotation rate, determined from sunspot group data during the period
1879–2004, decreased over the last century, whereas the level of activity has increased …

Latitudinal bands of faster/slower (relative to average) rate of rotation of solar plasma (also
known as the solar torsional oscillations) are considered to be a fundamental property of the …