Solar Oscillation Ring Diagrams and Large-Scale Flows
Abstract
A new analysis that results in the appearance of rings in the power spectrum of solar oscillations has been used to detect horizontal flows in two directions on the sun. An analysis of the rings obtained over four different solar longitude ranges suggests the presence of large-scale flows with longitudinal variations of about 20 m/s. The position of these flows are correlated with the location of an active region.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- August 1989
- DOI:
- 10.1086/185513
- Bibcode:
- 1989ApJ...343L..69H
- Keywords:
-
- Power Spectra;
- Solar Activity;
- Solar Oscillations;
- Solar Rotation;
- Atmospheric Circulation;
- Fourier Transformation;
- Solar Atmosphere;
- Solar Physics;
- SUN: ACTIVITY;
- SUN: ATMOSPHERIC MOTIONS;
- SUN: OSCILLATIONS;
- SUN: ROTATION