PMO OpenIR  > 院士文集  > 熊大闰
Oscillations of long-period variables
Xiong, DR; Deng, L; Cheng, L; Deubner, FL; ChristensenDalsgaard, J; Kurtz, D
1998
Source PublicationNEW EYES TO SEE INSIDE THE SUN AND STARS
ISSN0074-1809
Volume0Issue:185Pages:399-400
AbstractWe have performed a linear pulsational stability survey of long period variable models. The dynamic and thermodynamic couplings between convection and oscillations are treated by using a statistical theory of nonlocal and time-dependent convection. The results show that the fundamental and all the low overtones are always pulsationally unstable for the low-temperature models when the coupling between convection and oscillations is ignored. When the coupling is considered, there is indeed a "Mira" pulsationally instability region outside of the Cepheid instability strip on the H-R diagram. The coolest models near the Hayashi track are pulsationally stable. Towards high temperature the fundamental mode first becomes unstable, and then the first overtone. Some of the 2nd -4th overtones may become unstable for the hotter models. All the modes higher than 4th (n > 4) are pulsationally stable. The position and the width of such an instability region on the H-R diagram critically depends on the mass, luminosity and metal abundance of the star.
Subject AreaAstronomy & Astrophysics
WOS HeadingsScience & Technology ; Physical Sciences
Indexed ByISTP ; SCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000078932400090
Citation statistics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/11185
Collection院士文集_熊大闰
Affiliation1.Acad Sinica, Purple Mt Observ, Nanjing 210008, Peoples R China
2.Chinese Acad Sci, Beijing Astron Observ, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Xiong, DR,Deng, L,Cheng, L,et al. Oscillations of long-period variables[J]. NEW EYES TO SEE INSIDE THE SUN AND STARS,1998,0(185):399-400.
APA Xiong, DR,Deng, L,Cheng, L,Deubner, FL,ChristensenDalsgaard, J,&Kurtz, D.(1998).Oscillations of long-period variables.NEW EYES TO SEE INSIDE THE SUN AND STARS,0(185),399-400.
MLA Xiong, DR,et al."Oscillations of long-period variables".NEW EYES TO SEE INSIDE THE SUN AND STARS 0.185(1998):399-400.
Files in This Item:
File Name/Size DocType Version Access License
1998067Oscillations (173KB) 开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Xiong, DR]'s Articles
[Deng, L]'s Articles
[Cheng, L]'s Articles
Baidu academic
Similar articles in Baidu academic
[Xiong, DR]'s Articles
[Deng, L]'s Articles
[Cheng, L]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Xiong, DR]'s Articles
[Deng, L]'s Articles
[Cheng, L]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: 1998067Oscillations of long-period variables.pdf
Format: Adobe PDF
This file does not support browsing at this time
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.