Latest Results Found with Ring-Diagram Analysis
Howe, R.; Hill, F.; Rabello-Soares, M. C.; González Hernández, I.; Bogart, R. S.; Burtseva, O.; Basu, S.; Komm, R. W.; Jain, K.; Baldner, C. S.; Haber, D.; Tripathy, S.
United States, United Kingdom, Brazil
Abstract
Ring-diagram analysis is a helioseismic tool useful for studying the near-surface layers of the Sun. It has been employed to study near-surface shear, meridional circulation, flows around sunspots, and thermal structure beneath active regions. We review recent results obtained using ring-diagram analysis, state some of the more important outstanding difficulties in the technique, and point out several extensions to the technique that are just now beginning to bear fruit.