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题名: On the effect of turbulent anisotropy on pulsation stability of stars
作者: Zhang, Chun-Guang; Deng, Li-Cai; Xiong, Da-Run
刊名: RESEARCH IN ASTRONOMY AND ASTROPHYSICS
出版日期: 2017
卷号: 17, 期号:3, 页码:-
英文摘要: Within the framework of a non- local time- dependent stellar convection theory, we study in detail the effect of turbulent anisotropy on stellar pulsation stability. The results show that anisotropy has no substantial influence on pulsation stability of g modes and low- order (radial order n(r) < 5) p modes. The effect of turbulent anisotropy increases as the radial order increases. When turbulent anisotropy is neglected, most high- order ( n(r) > 5) p modes of all low-temperature stars become unstable. Fortunately, within a wide range of the anisotropic parameter c(3), stellar pulsation stability is not sensitive to the specific value of c(3.) Therefore it is safe to say that calibration errors of the convective parameter c (3) do not cause any uncertainty in the calculation of stellar pulsation stability.
语种: 英语
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/17435
Appears in Collections:行星科学与深空探测实验室_期刊论文

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