Turbulent convection and pulsation stability of stars - III. Non-adiabatic oscillations of red giants

D. R. Xiong, L. Deng, C. Zhang

Published 2018-08-29Version 1

We have computed linear non-adiabatic oscillations of luminous red giants using a non-local and anisotropic time-dependent theory of convection. The results show that low-order radial modes can be self-excited. Their excitation is the result of radiation and the coupling between convection and oscillations. Turbulent pressure has important effects on the excitation of oscillations in red variables.