HR: 1340h
AN: SH13A-1144    [Abstracts]
TI: Diagnostics of Subphotospheric Sources of Solar Variability
AU: * Kosovichev, A G
EM: AKosovichev@solar.stanford.edu
AF: Stanford University, 455 via Palou, Stanford, CA 94305 United States
AU: Duvall, T L
EM: TDuvall@solar.stanford.edu
AF: Laboratory for Astronomy and Space Physics, NASA Goddard Space Flight Center, Geenbelt, MD 20771 United States
AU: Zhao, J
EM: JZhao@solar.stanford.edu
AF: Stanford University, 455 via Palou, Stanford, CA 94305 United States
AB: Local helioseismology provides new tools for studying subphotospheric processes that are related to solar variability of various spatial and temporal scales. Large-scale flow patterns beneath active regions and sunspots affect the solar energy transport in the upper convection zone. Smaller-scale shearing and twisting flows may trigger instabilities of magnetic configurations that lead to flares and CMEs. We discuss the recent progress in the local helioseismology diagnostic tools and in our understanding of the subphotospheric dynamics and sources of variability.
DE: 7519 Flares
DE: 7522 Helioseismology
DE: 7537 Solar and stellar variability
DE: 7544 Stellar interiors and dynamo theory
SC: SPA-Solar and Heliospheric Physics [SH]
MN: 2004 AGU Fall Meeting