| Issue |
A&A
Volume 421, Number 3, July III 2004
|
|
|---|---|---|
| Page(s) | 775 - 782 | |
| Section | Astrophysical processes | |
| DOI | https://doi.org/10.1051/0004-6361:20035606 | |
| Published online | 29 June 2004 | |
Identification of gravity waves in hydrodynamical simulations*
1
Observatoire Midi-Pyrénées, CNRS UMR5572, 14 avenue Edouard Belin, 31400 Toulouse, France
2
NORDITA, Blegdamsvej 17, 2100 Copenhagen Ø, Denmark
Corresponding author: B. Dintrans, dintrans@ast.obs-mip.fr
Received:
31
October
2003
Accepted:
2
April
2004
The excitation of internal gravity waves by an entropy bubble oscillating in an isothermal atmosphere is investigated using direct two-dimensional numerical simulations. The oscillation field is measured by a projection of the simulated velocity field onto the anelastic solutions of the linear eigenvalue problem for the perturbations. This facilitates a quantitative study of both the spectrum and the amplitudes of excited g-modes.
Key words: hydrodynamics / waves / stars: oscillations / stellar dynamics
© ESO, 2004
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.