Authors: V.P. Mikhailutsa
Affiliation: Kislovodsk Department, Rostov State University, Russia
The poorly studied, spatially coherent large-scale structures on the solar surface characterized by sectoral-hemispherical asymmetry can be produced by ultra-low frequency non-radial oscillations of the Sun. This requires that: i) the wave-vector of the oscillation would be normal to the rotational axis of the Sun, ii) the radial component of the wave-vector would be a factor of five greater than the tangential component, iii) the Brunt-Vaisala frequency in the oscillation-trapping region correspond to a period ~22 year, iv) the sectoral number of the spatially periodic component of the oscillation be equal to three (m=3).