Stochastic excitation of gravity waves by overshooting convection in   solar-type stars
  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. 
Boris Dintrans (OMP, Toulouse), Axel Brandenburg (NORDITA,   Copenhagen), Ake Nordlund (AO and NBIfAFG, Copenhagen), R.F. St...