Stochastic Excitation of Gravity Waves by Overshooting Convection in Solar-Type Stars
Abstract
The excitation of gravity waves by penetrative convective plumes is investigated using 2D direct simulations of compressible convection. The oscillation field is measured by a new technique based on the projection of our simulation data onto the theoretical g-modes solutions of the associated linear eigenvalue problem. This allows us to determine both the excited modes and their corresponding amplitudes accurately.
- Publication:
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Astrophysics and Space Science
- Pub Date:
- 2003
- Bibcode:
- 2003Ap&SS.284..237D
- Keywords:
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- Stars: oscillations:;
- Convection