Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005seraj.171...19c&link_type=abstract
Serbian Astronomical Journal, Vol. 171, p. 19-27.
Astronomy and Astrophysics
Astronomy
1
Sun: Helioseismology, Stars: Oscillations
Scientific paper
The main goal of this paper is to estimate the significance of effects the flow profile U_0(z) induces on computed global oscillation spectra. We solve numerically the eigenvalue problem for the described basic state configuration with reference to solar conditions as an example of a typical star. Obtained results show that the considered shear flows do not only affect the eigenfrequencies omega but they also have an impact on spatial profiles of eigensolutions of linearized physical quantities. Such flows may even allow for local amplification of perturbation amplitudes at positions where the resonant Doppler condition omega=kU_0(z) is satisfied. For typical subsonic flow speeds this Doppler resonant wave amplification can be effective only in the case of the non acoustic gravity modes with sufficiently large horizontal wavenumbers k.
Cadez Vladimir M.
Vanlommel Petra
No associations
LandOfFree
Effects of Localized Horizontal Flow Patterns on Eigenfrequencies of Stellar Global Modes does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Effects of Localized Horizontal Flow Patterns on Eigenfrequencies of Stellar Global Modes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Effects of Localized Horizontal Flow Patterns on Eigenfrequencies of Stellar Global Modes will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1460277