Helioseismic Tests of Dynamo Theories of the Solar Cycle

Lead Investigator: A.G. Kosovichev

Other Team Members: T.L. Duvall, Jr., D.O. Gough, J.T. Hoeksema, P.H. Scherrer, T. Sekii, D. Sokoloff, P.A. Sturrock, & J. Toomre

Analyze temporal and spatial variations of aspherical structure and azimuthal velocity in the convection zone by analyzing split multiplets and eigenfunctions of individual modes and by using 3D tomographic imaging techniques; to search for the dynamo-wave pattern in the variations; compare the results with the variations of the large-scale magnetic field; provide observational tests for the theories of the solar cycle.