The effect of a magnetic field on stellar pulsations as a singular perturbation problem

Details The effect of a magnetic field on stellar pulsations as a singular perturbation problem The effect of a magnetic field on stellar pulsations as a singular perturbation problem

Dec 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980ssrv...27..661g&link_type=abstract

(International Astronomical Union, Colloquium on Stellar Hydrodynamics, 58th, Los Alamos, N. Mex., Aug. 12-15, 1980.) Space Scie

Astronomy and Astrophysics

Astronomy

Magnetic Effects, Perturbation Theory, Stellar Magnetic Fields, Stellar Oscillations, Stellar Structure, Adiabatic Conditions, Eigenvectors, Surface Geometry, Variable Stars, Vibration Mode

Scientific paper

The perturbation problem that describes the effect of a weak magnetic field on stellar adiabatic oscillation is considered. This perturbation problem is singular when the magnetic field does not vanish at the stellar surface, and a regular perturbation scheme fails where the magnetic pressure is comparable to the thermodynamic pressure. The application of the Method of Matched Asymptotic Expansion is used to obtain expressions for the eigenfunctions and the eigenfrequencies.

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