The pulsational stability of intermediate- and low-luminosity red giants in globular clusters
文献类型：期刊论文
| 作者 | Xiong Darun1 ; Deng Licai2
|
| 刊名 | Chinese Astronomy and Astrophysics
 |
| 出版日期 | 2006 |
| 卷号 | 30期号:4页码:379 |
| ISSN号 | 0275-1062 |
| 英文摘要 | Some theoretical calculations of linear non-adiabatic pulsations of intermediate- and low- luminosity red giants in globular clusters have been carried out using a time-dependent theory of nonlocal stellar convection. As shown by the results, for all models with temperatures higher than 5400 K the modes up to the fourth overtone are pulsationally stable. With the increase of stellar luminosity, the low-order overtones also become pulsationally unstable. For red giants of intermediate and low luminosities, the pulsational stability is exceedingly low and is close to neutral stability. Therefore, they will be either non-variables or short-period variables ( P < 2 days) with extremely small amplitudes. |
| 语种 | 英语 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/30110]  |
| 专题 | 中国科学院紫金山天文台 |
| 作者单位 | 1.中国科学院紫金山天文台 2.中国科学院国家天文台 |
| 推荐引用方式 GB/T 7714 | Xiong Darun,Deng Licai. The pulsational stability of intermediate- and low-luminosity red giants in globular clusters[J]. Chinese Astronomy and Astrophysics,2006,30(4):379. |
| APA | Xiong Darun,&Deng Licai.(2006).The pulsational stability of intermediate- and low-luminosity red giants in globular clusters.Chinese Astronomy and Astrophysics,30(4),379. |
| MLA | Xiong Darun,et al."The pulsational stability of intermediate- and low-luminosity red giants in globular clusters".Chinese Astronomy and Astrophysics 30.4(2006):379. |
入库方式： OAI收割
来源：紫金山天文台
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