Observations and Interpretation of Sub-Surface Structures
Abstract
Immediate subsurface local structures - flow magnetic and thermal - especially those associated with active regions are of considerable interest and are potentially accessible using high l helioseismology. In recent years though classical modal seismology has been supplemented with new approaches such as time-distance helioseismology and acoustic holography. In this talk the various methods and their results are briefly reviewed and implications discussed. Of the structure types subsurface magnetic fields are the most difficult to identify observationally so an overview is also given of how solar oscillations are expected to interact with them.
- Publication:
-
IAU Joint Discussion
- Pub Date:
- 2003
- Bibcode:
- 2003IAUJD..12E..43C