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The Thermal Equilibrium Mass-loss Model and Its Applications in Binary Evolution
Ge HW(葛宏伟)1,2,3,4; Ronald F Webbink5; Han ZW(韩占文)1,2,3,4
Corresponding AuthorGe, Hongwei(gehw@ynao.ac.cn)
Source PublicationThe Astrophysical Journal Supplement Series
2020-07
Volume249Issue:1Pages:1-18
DOI10.3847/1538-4365/ab98f6
Contribution Rank第1完成单位
Indexed BySCI
KeywordStellar evolution Stellar mass loss Close binary stars Common envelope evolution Stellar interiors Stellar structures
Abstract

Binary evolution is indispensable in stellar evolution to understand the formation and evolution of most peculiar and energetic objects, such as binary compact objects, Type Ia supernovae, X-ray binaries, cataclysmic variables, blue stragglers, hot subdwarfs, and central binaries in planetary nebulae. Mass transfer in binary stars can change the evolutionary path and fate of the components compared to what is expected from single stellar evolution. The critical mass ratio at which unstable mass transfer occurs is an unsolved fundamental problem in binary evolution. To resolve this issue, we construct the thermal equilibrium mass-loss model and derive critical mass ratios for both thermal-timescale mass transfer and unstable mass transfer, the latter of which occurs when the outer Lagrangian point, L2, is overfilled. Using several 3.2 M ⊙ stellar models as examples, we study the stellar response to thermal equilibrium mass loss and present the thresholds for thermal-timescale mass transfer. We study the possible mass-transfer channels of binary systems containing a 3.2 M ⊙ donor star, taking into account thermal-timescale mass transfer, unstable mass transfer through L2, and dynamical-timescale mass transfer. We repeat this simulation for a grid of donor stars with different masses (from 0.1 to 100 M ⊙ with Z = 0.02) and at different evolutionary stages, and present our results. The results show that unstable mass transfer due to the overfilling of the outer Lagrangian point may also play an essential role in the formation of common envelopes for late red giant branch and asymptotic giant branch donors.

Funding ProjectNational Natural Science Foundation of China (NSFC)[11673058] ; National Natural Science Foundation of China (NSFC)[11733008] ; National Natural Science Foundation of China (NSFC)[11521303] ; key research program of frontier sciences, CAS[ZDBS-LY-7005] ; Natural Science Foundation of Yunnan Province[2019HA012] ; US National Science Foundation[AST 04-06726] ; US National Science Foundation[AST 14-13367]
Funding OrganizationNational Natural Science Foundation of China (NSFC)[11673058, 11733008, 11521303] ; key research program of frontier sciences, CAS[ZDBS-LY-7005] ; Natural Science Foundation of Yunnan Province[2019HA012] ; US National Science Foundation[AST 04-06726, AST 14-13367]
Language英语
Subject Area天文学 ; 恒星与银河系 ; 恒星物理学 ; 恒星天文学
MOST Discipline Catalogue理学::天文学
SubtypeArticle
PublisherIOP PUBLISHING LTD
Publication PlaceTEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN0067-0049
URL查看原文
WOS IDWOS:000549312700001
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordSUBDWARF-B-STARS ; ORIGIN ; PHASE
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/23478
Collection大样本恒星演化研究组
Corresponding AuthorGe HW(葛宏伟)
Affiliation1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, People's Republic of China
2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650216, People's Republic of China
3.Center for Astronomical Mega-Science, Chinese Academy of Sciences, Beijing 100012, People's Republic of China
4.University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
5.University of Illinois at Urbana-Champaign, 1002 W. Green Street, Urbana, IL 61801, USA
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Corresponding Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Ge HW,Ronald F Webbink,Han ZW. The Thermal Equilibrium Mass-loss Model and Its Applications in Binary Evolution[J]. The Astrophysical Journal Supplement Series,2020,249(1):1-18.
APA Ge HW,Ronald F Webbink,&Han ZW.(2020).The Thermal Equilibrium Mass-loss Model and Its Applications in Binary Evolution.The Astrophysical Journal Supplement Series,249(1),1-18.
MLA Ge HW,et al."The Thermal Equilibrium Mass-loss Model and Its Applications in Binary Evolution".The Astrophysical Journal Supplement Series 249.1(2020):1-18.
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