Abstract
The averaging technique of Kippenhahn and Thomas (1970) has been used in conjunction with Kopal's method of evaluating various parameters on the Roche equipotentials to determine the effects of rotation and tidal distortions on the periods of small adiabatic radial and nonradial modes of oscillations of polytropic models of the stars.
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Mohan, C., Saxena, R.M. Effects of rotation and tidal distortion on the periods of small adiabatic oscillations of the polytropic models of the stars. Astrophys Space Sci 113, 155–169 (1985). https://doi.org/10.1007/BF00650278
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DOI: https://doi.org/10.1007/BF00650278