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Stochastic Excitation of Gravity Waves by Overshooting Convection in Solar-Type Stars

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Abstract

The excitation of gravity waves by penetrative convective plumes isinvestigated using 2D direct simulations of compressible convection.The oscillation field is measured by a new technique based on theprojection of our simulation data onto the theoretical g-modes solutionsof the associated linear eigenvalue problem. This allows us to determineboth the excited modes and their corresponding amplitudes accurately.

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References

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Dintrans, B., Brandenburg, A., Nordlund, Å. et al. Stochastic Excitation of Gravity Waves by Overshooting Convection in Solar-Type Stars. Astrophysics and Space Science 284, 237–240 (2003). https://doi.org/10.1023/A:1023299804687

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  • DOI: https://doi.org/10.1023/A:1023299804687

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