HR: 13:55h
AN: SM43B-02 INVITED     [Abstracts]
TI: Physical Processes in the Solar Interior: the Ultimate Sun-Weather Engine
AU: * Sofia, S
EM: sofia@astro.yale.edu
AF: Department of Astronomy, Yale University, P.O. Box 208101, New Haven, CT 06520 United States
AB: The ultimate source of the magnetic fields that drive the Sun-Weather is located in the solar interior, where the dynamo mechanism (or mechanisms) operate. To model these processes, it is necessary to combine the tools of plasma physics (MHD) together with those of stellar structure and evolution, and large eddy simulations (LES) of the convective envelope. Because of the differences in methodologies and space and time scales, it has not been possible, until now, to produce models that incorporate all aspects of the problem. However, the modeling of each separate component has been progressing with ever increasing sophistication, and the first attempts are being made to combine several approaches at once. This presentation will describe where these efforts are at the present time, what the next steps are likely to be, and what should ultimately be done in order to produce a dynamo model capable of explaining (and forecasting) the most significant aspects of Sun-Weather.
DE: 7536 Solar activity cycle (2162)
DE: 2149 MHD waves and turbulence
DE: 1650 Solar variability
SC: SPA-Magnetospheric Physics [SM]
MN: 2004 AGU Fall Meeting