Bibliographic Details
| Title: |
On the effect of turbulent anisotropy on pulsation stability of stars |
| Authors: |
Zhang, C., Deng, L., Xiong, D. R. |
| Source: |
Res. Astron. Astrophys., 17, 29 (2017) |
| Publication Year: |
2018 |
| Collection: |
Astrophysics |
| Subject Terms: |
Astrophysics - Solar and Stellar Astrophysics |
| More Details: |
Within the framework of 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 $n_\mathrm{r}<5$) p modes. The effect of turbulent anisotropy increases as the radial order increases. When turbulent anisotropy is neglected, most of high-order ($n_\mathrm{r}>5$) 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.
Comment: 8 pages, 5 figures, published 2017 March |
| Document Type: |
Working Paper |
| DOI: |
10.1088/1674-4527/17/3/29 |
| Access URL: |
http://arxiv.org/abs/1808.09625 |
| Accession Number: |
edsarx.1808.09625 |
| Database: |
arXiv |
