Non-stationary atmospheres of supergiants |
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| Authors: | S K Zeinalov A Kh Rzaev |
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| Institution: | (1) Physics Department, Middle East Technical University, Ankara, Turkey |
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| Abstract: | A model of 5M
 hydrogen-helium star with no metals has been considered. The properties of the adiabatic oscillations were obtained, and the vibrational instability of the model has been investigated. The model is a double-shell burning star. Calculations were done for the fundamental mode as well as the first and the second harmonics. The model has been found vibrationally unstable against radial adiabatic pulsations. |
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