HR: 14:20h
AN: SH33C-03 INVITED     [Abstracts]
TI: Variability of the solar interior and irradiance
AU: * Kosovichev, A
EM: AKosovichev@solar.stanford.edu
AF: Stanford University, 455 via Palou, Stanford, CA 94305 United States
AB: Solar variability is controlled by dynamo processes in the Sun's interior. The interior properties are measured by helioseismology. These measurements are based on observations of solar oscillations and waves which are excited by turbulent convection near the surface and propagate through the interior. Oscillation frequencies and travel times provide information about variations of the structure and large-scale dynamics inside the Sun. Recently developed methods of acoustic tomography provide 3D images of the solar interior. Variations of the global internal properties of the Sun have been measured for two solar cycles, and for the last 10 years the space mission SOHO and ground-based networks (GONG, BiSON, TON) provided continuous monitoring of the global properties including total irradiance. I review recent results of the helioseismic measurements of the structure and dynamics of the Sun, and discuss their relation for understanding mechanisms of solar variability and activity.
DE: 7537 Solar and stellar variability (1650)
SC: SPA-Solar and Heliospheric Physics [SH]
MN: Fall Meeting 2005