Nonlinear oscillations in one-zone stellar model
文献类型：期刊论文
| 作者 | Jiang Shiyang2; Chen Fusheng3; Chen Yan1 |
| 刊名 | Communications in Theoretical Physics
 |
| 出版日期 | 1998 |
| 卷号 | 30期号:2页码:281 |
| ISSN号 | 0253-6102 |
| 英文摘要 | If one-zone models are available for some pulsating stars and the motion remains close to adiabaticity, the oscillation and stability criterion of the star have been analyzed by canonical perturbation theory and optimal control theory, separately under different function values b on the right-hand side of Eq. (10). We found that (i) If the introduction of a given perturbation function of time b(t) is substituted into the right-hand side of Eq. (10), and energy-optimal control of a nonlinear oscillator is satisfied, the oscillation in one-zone model is unstable. (ii) If b is subject to the constraint \b\ less than or equal to 1, and time-optimal control is satisfied, the oscillation in one-zone stellar model is stable. (iii) The periodic oscillation criterion is obtained by a simple method, if b is regarded as a constant of integration in Eq. (10). It shows that the adiabatic exponent Gamma(1) is all important. When Gamma(1) is greater than or equal to 4/3, the periodic oscillation should occur in one-zone stellar model; when Gamma(1) is less than 4/3, and under the additional condition of \B\ < B-c, the periodic oscillation could not occur in this model. |
| 语种 | 英语 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/50692]  |
| 专题 | 中国科学院国家天文台 |
| 作者单位 | 1.福建师范大学 2.中国科学院国家天文台 3.南昌大学 |
| 推荐引用方式 GB/T 7714 | Jiang Shiyang,Chen Fusheng,Chen Yan. Nonlinear oscillations in one-zone stellar model[J]. Communications in Theoretical Physics,1998,30(2):281. |
| APA | Jiang Shiyang,Chen Fusheng,&Chen Yan.(1998).Nonlinear oscillations in one-zone stellar model.Communications in Theoretical Physics,30(2),281. |
| MLA | Jiang Shiyang,et al."Nonlinear oscillations in one-zone stellar model".Communications in Theoretical Physics 30.2(1998):281. |
入库方式： OAI收割
来源：国家天文台
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