Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987mnras.224..513l&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 224, Feb. 1, 1987, p. 513-526.
Astronomy and Astrophysics
Astronomy
50
Gravity Waves, Stellar Oscillations, Stellar Rotation, Convection, Eigenvalues, Main Sequence Stars, Stellar Envelopes, Stellar Interiors
Scientific paper
Low-frequency non-radial oscillations of a uniformly rotating massive main-sequence star are studied. Solving the linear differential equations as an eigenvalue problem the authors obtain (purely real) frequencies of gravity modes and rotational modes as functions of the rotation frequency. The avoided crossings of eigenfrequencies occur among gravity modes as the rotation frequency changes. When a frequency of inertial oscillations in the convective core coincides with the frequency of a gravity mode oscillation, the authors obtain a normal mode which has the property of the convective (inertial) mode in the core and that of the gravity mode in the envelope. The same resonant phenomenon occurs between a convective (inertial) mode and a rotational mode, too. The analytical discussion on the numerical results is given by using an asymptotic method.
Lee Umin
Saio Hideyuki
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