Solar Cycle Variations in P-Modes and Chromospheric Magnetism
Abstract
The effect onp-mode frequencies of a horizontal chromospheric canopy field is studied theoretically and the results compared with Libbrecht and Woodard's observations of frequency changes. Combined changes in field strength and chromospheric temperature cause frequency shifts that are similar in form to those observed. Frequency shifts inp-modes offer the possibility of signatures of solar activity cycles distinct from sunspot numbers and butterfly diagrams.
- Publication:
-
Solar Physics
- Pub Date:
- June 1994
- DOI:
- 10.1007/BF01473213
- Bibcode:
- 1994SoPh..152..261J
- Keywords:
-
- Chromosphere;
- Magnetic Effects;
- P Waves;
- Solar Cycles;
- Variability;
- Frequency Shift;
- Magnetic Field Configurations;
- Solar Activity;
- Stellar Models;
- Temperature Distribution;
- Solar Physics;
- Field Strength;
- Solar Activity;
- Frequency Shift;
- Solar Cycle;
- Frequency Change