ROTATIONAL ANISOTROPY AND MAGNETIC QUENCHING OF GYROTROPIC TURBULENCEIN THE SOLAR CONVECTIVE ZONE

The influence of global rotation and large-scale magnetism on turbulen t motions during the excitement of magnetic induction by gyrotropic tu rbulence (the a effect) in the solar convective zone (SCZ) is studied. The contributions to the a effect of radial plasma-density gradients and the turbulence intensity are taken into account. Calculations perf ormed for the SCZ model of Stir show that the components of the alpha tensor have very different radial and latitudinal dependences. The mag netic quenching (or so-called alpha quenching), which decelerates the magnetic induction, is calculated for the lower part of the SCZ, where strong large-scale magnetic fields B = 3000-4000 G can be sustained d ue to nonlinear turbulent diamagnetism. Substantial a quenching [quenc hing function Psi(alpha)(beta) congruent to 0.4] is found near the bas e of the SCZ.