Solar Dynamo Model with Diamagnetic Pumping and Nonlocal α -Effect

摘要: A combination of diamagnetic pumping and a nonlocal α-effect the Babcock–Leighton type in solar dynamo model is shown to reproduce observations magnetic activity. The period cycle can be reproduced without reducing diffusivity bulk convection zone below standard mixing-length value 1013 cm2 s−1. simulated global fields are antisymmetric about equator, toroidal-to-poloidal field ratio one thousand. However, time–latitude diagrams meridional flow differ from observations. Only when included profile peaking at mid-latitudes applied, observed butterfly reproduced.