AAS 200th meeting, Albuquerque, NM, June 2002
Session 79. Helioseismology and the Solar Interior
SPD Special Session Oral, Thursday, June 6, 2002, 10:00-11:30am, Ruidoso/Pecos

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[79.02] Advances in Time-Distance Helioseismology

T.L. Duvall Jr. (NASA/GSFC), J.G. Beck, L. Gizon, A.G. Kosovichev (Stanford Univ.)

Time-distance helioseismology is a way to measure travel times between surface locations for waves traversing the solar interior. Coupling the travel time measurements with an extensive modeling effort has proven to be a powerful tool for measuring flows and other wave speed inhomogeneities in the solar interior. Problems receiving current attention include studying the time variation of the meridional circulation and torsional oscillation and active region emergence and evolution. Current results on these topics will be presented.

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Bulletin of the American Astronomical Society, 34
© 2002. The American Astronomical Soceity.