Probing the solar interior
Abstract
Solar oscillation frequencies have become an important tool to obtain detailed information about the solar interior. The physical nature of the oscillations is well understood: the modes observed so far are standing acoustic waves (or p modes). Thus identified, they allow an immediate diagnosis of the physical conditions in the solar interior, through the relation of the oscillation frequencies with the local sound speed. Besides giving an introduction to current techniques, I describe the observational situation. The connection between solar oscillations and the equation of state is discussed in some detail. A separate section contains a short general review of recent progress.
- Publication:
-
Advances in Space Research
- Pub Date:
- 1991
- DOI:
- 10.1016/0273-1177(91)90433-K
- Bibcode:
- 1991AdSpR..11d...5D
- Keywords:
-
- Solar Interior;
- Solar Oscillations;
- Sound Waves;
- Standing Waves;
- Equations Of State;
- Frequency Distribution;
- Helioseismology;
- Solar Physics;
- Solar Physics