Solar-cycle effects on solar oscillation frequencies
Abstract
Measurements of solar oscillations taken in 1986 and 1988 show systematic changes in the Sun's acoustic-mode frequencies of the order of 1 part in 10,000. These data reveal that the frequency shifts are the result of latitude-dependent changes in the structure of the Sun which are correlated with the Sun's magnetic-activity cycle.
- Publication:
-
Nature
- Pub Date:
- June 1990
- DOI:
- 10.1038/345779a0
- Bibcode:
- 1990Natur.345..779L
- Keywords:
-
- Acoustic Frequencies;
- Frequency Shift;
- Solar Activity;
- Solar Magnetic Field;
- Solar Oscillations;
- Brightness Distribution;
- Doppler Effect;
- Flux Vector Splitting;
- Latitude;
- Solar Cycles;
- Solar Physics