NAOC Open IR
The Structure and Evolution of Massive Rotating Single and Binary Population III Stars
Song, Hanfeng1,2,3; Meynet, Georges2; Li, Zhi1,3; Peng, Weiguo1; Zhang, Ruiyu4; Zhan, Qiong1
2020-03-20
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
Volume892Issue:1Pages:27
AbstractThe aim of this paper is to investigate the effect of rotation on the single and binary evolution for Population III stars. A small grid for a massive Population III star of 130 M is constructed, and various initial conditions are adjusted to explore the evolution. For comparison, we present the evolution of the models with the metallicity in the Small Magellanic Cloud and analyze the characteristic feature of chemically homogeneous evolution. It is found that Population III stars attain the equilibrium velocities later during synchronization owing to a smaller radius. The equilibrium velocity has been expressed as various timescales. There appears to be a deep dredge-up at hydrogen exhaustion for single Population III stars. It not only increases the helium core but also exchanges chemical elements between the He core and the H-burning shell. This will give rise to a significant amount of nitrogen and neon. Rotational mixing can reduce the specific entropy in the envelope and increase the specific entropy in the core owing to a change of mean molecular weight. Stellar compactness and the luminosity available for stellar expansion are decreased by rotational mixing because of the increase of helium in the envelopes. Mass loss induced by strong stellar winds and Roche lobe overflow can extinguish the hydrogen-burning shell and remove convective envelopes. Therefore, this process does not favor the dredge-up and production of primary nitrogen. The chemical structure for two components in binarities is significantly modified because Roche lobe overflow has an impact on convective cores.
KeywordClose binary stars
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; Swiss National Science Foundation ; Swiss National Science Foundation ; Science and Technology Planning Project in Guizhou Province ; Science and Technology Planning Project in Guizhou Province ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Swiss National Science Foundation ; Swiss National Science Foundation ; Science and Technology Planning Project in Guizhou Province ; Science and Technology Planning Project in Guizhou Province ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Swiss National Science Foundation ; Swiss National Science Foundation ; Science and Technology Planning Project in Guizhou Province ; Science and Technology Planning Project in Guizhou Province ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Swiss National Science Foundation ; Swiss National Science Foundation ; Science and Technology Planning Project in Guizhou Province ; Science and Technology Planning Project in Guizhou Province
DOI10.3847/1538-4357/ab7993
WOS KeywordPRESUPERNOVA EVOLUTION ; STELLAR EVOLUTION ; LOSS RATES ; LOW METALLICITY ; 1ST STARS ; SPIN-UP ; O-STARS ; MODELS ; PROGENITORS ; EXPLOSION
Language英语
Funding ProjectNational Natural Science Foundation of China[11863003] ; National Natural Science Foundation of China[11463002] ; Swiss National Science Foundation[200020-172505] ; Science and Technology Planning Project in Guizhou Province[[2018]5781]
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; Swiss National Science Foundation ; Swiss National Science Foundation ; Science and Technology Planning Project in Guizhou Province ; Science and Technology Planning Project in Guizhou Province ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Swiss National Science Foundation ; Swiss National Science Foundation ; Science and Technology Planning Project in Guizhou Province ; Science and Technology Planning Project in Guizhou Province ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Swiss National Science Foundation ; Swiss National Science Foundation ; Science and Technology Planning Project in Guizhou Province ; Science and Technology Planning Project in Guizhou Province ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Swiss National Science Foundation ; Swiss National Science Foundation ; Science and Technology Planning Project in Guizhou Province ; Science and Technology Planning Project in Guizhou Province
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000522443500001
PublisherIOP PUBLISHING LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/55738
Collection中国科学院国家天文台
Corresponding AuthorSong, Hanfeng
Affiliation1.Guizhou Univ, Coll Phys, Guiyang 550025, Guizhou, Peoples R China
2.Univ Geneva, Geneva Observ, CH-1290 Sauverny, Switzerland
3.Chinese Acad Sci, Yunnan Astron Observ, Kunming 650011, Yunnan, Peoples R China
4.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China
Recommended Citation
GB/T 7714
Song, Hanfeng,Meynet, Georges,Li, Zhi,et al. The Structure and Evolution of Massive Rotating Single and Binary Population III Stars[J]. ASTROPHYSICAL JOURNAL,2020,892(1):27.
APA Song, Hanfeng,Meynet, Georges,Li, Zhi,Peng, Weiguo,Zhang, Ruiyu,&Zhan, Qiong.(2020).The Structure and Evolution of Massive Rotating Single and Binary Population III Stars.ASTROPHYSICAL JOURNAL,892(1),27.
MLA Song, Hanfeng,et al."The Structure and Evolution of Massive Rotating Single and Binary Population III Stars".ASTROPHYSICAL JOURNAL 892.1(2020):27.
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