Astrophysics and Space Science

, Volume 284, Issue 1, pp 237–240 | Cite as

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

  • Boris Dintrans
  • Axel Brandenburg
  • Åke Nordlund
  • Robert F. Stein


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.

Stars: oscillations – Convection 


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Copyright information

© Kluwer Academic Publishers 2003

Authors and Affiliations

  • Boris Dintrans
    • 1
  • Axel Brandenburg
    • 2
  • Åke Nordlund
    • 3
  • Robert F. Stein
    • 4
  1. 1.Laboratoire d'AstrophysiqueObservatoire Midi-PyrénéesToulouseFrance
  2. 2.Nordic Institute for Theoretical PhysicsCopenhagen ØDenmark
  3. 3.Theoretical Astrophysics Center, and Astronomical ObservatoryCopenhagen ØDenmark
  4. 4.Department of Physics and AstronomyMichigan State UniversityEast LansingUSA

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