Resonant Coupling Between Solar Gravity Modes
Abstract
It is shown that in consequence of the parametric resonance, g modes of low spherical harmonic degree l are strongly coupled to the modes of high degree. The coupling limits the growth of low l modes to very small amplitudes. For g1, l = 1 mode, the final amplitude of the radial velocity is of the order of 10 cm s-1. A mixing of solar core as a result of a finite-amplitude development of linear instability of this mode is thus highly unlikely.
- Publication:
-
Solar Physics
- Pub Date:
- January 1983
- DOI:
- 10.1007/BF00145568
- Bibcode:
- 1983SoPh...82..259D
- Keywords:
-
- Coupled Modes;
- Solar Gravitation;
- Solar Oscillations;
- Coupling Coefficients;
- Dynamic Stability;
- Nonlinearity;
- Spherical Harmonics;
- Solar Physics;
- Radial Velocity;
- Small Amplitude;
- Parametric Resonance;
- Gravity Mode;
- Linear Instability