The scattering of acoustic waves by a stellar core as seen in the small frequency separations
Abstract
The propagation of acoustic waves in the interior of relatively young stars is nearly classical and can be accurately described by ray-tracing techniques. At later stages of evolution, the development of a steep density gradient in the central core leads to wave diffraction and partial wave scattering. Scattering is also produced by a small convective core with a rapid density variation at the boundary. We discuss the signatures of this scattering in the small frequency separations of low-degree p-modes.
- Publication:
-
Stellar Structure and Habitable Planet Finding
- Pub Date:
- January 2004
- Bibcode:
- 2004ESASP.538..403R
- Keywords:
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- Sun: Waves;
- Methods: Numerical;
- Stars: Oscillations