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Formation of black holes from He stars

文献类型：期刊论文

作者Long G(龙刚)5,6,7; Wang B(王博)5,6,7; Podsiadlowski, Philipp1,4; Liu DD(刘栋栋)5,6,7; Guo, Yunlang3; Cha S(查帅)5,6,7; Song, Hanfeng2; Han ZW(韩占文)5,6,7
刊名ASTRONOMY & ASTROPHYSICS
出版日期2026-03-20
卷号707
关键词stars: black holes stars: evolution stars: interiors stars: massive stars: Wolf-Rayet
ISSN号0004-6361
DOI10.1051/0004-6361/202558335
产权排序第1完成单位
文献子类Article
英文摘要Massive He stars are potential candidates of type Ib/c supernova (SN) progenitors. Understanding their final fates remains a key issue in astrophysics. In this work, we investigate the evolution of He stars with initial masses from 5 M circle dot to 65 M circle dot, focusing on the presupernova (pre-SN) core structures to assess their explodability. Our simulations indicate that the final core structure is determined by the CO core mass and the central 12C mass fraction at the end of core He burning, affecting the properties of central C-burning and the locations of convective shells. The location of the last convective C-burning shell sets the mass of the C-free core, constraining the iron core mass and compactness. We found that the final compactness and iron core mass exhibit non-monotonic behavior with initial mass, suggesting that the boundary between neutron star and black hole formation is not a simple mass threshold. This is due to core C/Ne burning becoming neutrino dominated. This process drives stronger core contraction, ultimately increasing the iron core mass and the final compactness. In contrast, earlier core Ne/O/Si ignition and shell mergers inhibit core contraction, reducing both the iron core mass and final compactness. We also discuss the effects of metallicity and overshooting on the pre-SN core structure. These factors potentially affect the explodability of progenitors.
学科主题天文学 ; 恒星与银河系
URL标识查看原文
出版地17, AVE DU HOGGAR, PA COURTABOEUF, BP 112, F-91944 LES ULIS CEDEX A, FRANCE
WOS关键词ACCRETION-INDUCED COLLAPSE ; WOLF-RAYET STARS ; M-CIRCLE-DOT ; MASS-LOSS RATES ; NEUTRON-STAR ; HELIUM STARS ; PRESUPERNOVA EVOLUTION ; CONVECTIVE BOUNDARIES ; SUPERNOVA EXPLOSIONS ; INITIAL MASS
资助项目National Natural Science Foundation of China[12225304]; National Natural Science Foundation of China[12288102]; National Natural Science Foundation of China[12090040]; National Natural Science Foundation of China[12090043]; National Natural Science Foundation of China[12403035]; National Natural Science Foundation of China[12173010]; National Natural Science Foundation of China[12573034]; National Natural Science Foundation of China[12273105]; National Key R&D Program of China[2021YFA1600404]; Yunnan Revitalization Talent Support Program (Yunling Scholar Project and Innovation Team Project); Youth Innovation Promotion Association CAS[2021058]; Yunnan Fundamental Research Project[202501AS070005]; Yunnan Fundamental Research Project[202401AV070006]; Yunnan Fundamental Research Project[202501AS070078]; Yunnan Key Laboratory[202505AV340004]; Postdoctoral Fellowship Program of CPSF[GZB20240307]; China Postdoctoral Science Foundation[2024M751375]; China Postdoctoral Science Foundation[2024T170393]; Jiangsu Funding Programme for Excellent Postdoctoral Talent[2024ZB705]
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001719434900001
出版者EDP SCIENCES S A
资助机构National Natural Science Foundation of China[12225304, 12288102, 12090040, 12090043, 12403035, 12173010, 12573034, 12273105] ; National Key R&D Program of China[2021YFA1600404] ; Yunnan Revitalization Talent Support Program (Yunling Scholar Project and Innovation Team Project) ; Youth Innovation Promotion Association CAS[2021058] ; Yunnan Fundamental Research Project[202501AS070005, 202401AV070006, 202501AS070078] ; Yunnan Key Laboratory[202505AV340004] ; Postdoctoral Fellowship Program of CPSF[GZB20240307] ; China Postdoctoral Science Foundation[2024M751375, 2024T170393] ; Jiangsu Funding Programme for Excellent Postdoctoral Talent[2024ZB705]
版本出版稿
源URL[http://ir.ynao.ac.cn/handle/114a53/29062]  
专题云南天文台_大样本恒星演化研究组
通讯作者Wang B(王博)
作者单位1.London Ctr Stellar Astrophys, Vauxhall, London, England;
2.Guizhou Univ, Coll Phys, Guiyang 550025, Peoples R China
3.Nanjing Univ, Sch Astron & Space Sci, Nanjing 210023, Peoples R China;
4.Univ Oxford, St Edmund Hall, Oxford OX1 4AR, England;
5.Yunnan Key Lab, Int Ctr Supernovae ICESUN, Kunming 650216, Peoples R China;
6.Univ Chinese Acad Sci, Beijing 100049, Peoples R China;
7.Chinese Acad Sci, Yunnan Observ, Kunming 650216, Peoples R China;
推荐引用方式
GB/T 7714		 Long G,Wang B,Podsiadlowski, Philipp,et al. Formation of black holes from He stars[J]. ASTRONOMY & ASTROPHYSICS,2026,707.
APA 龙刚.,王博.,Podsiadlowski, Philipp.,刘栋栋.,Guo, Yunlang.,...&韩占文.(2026).Formation of black holes from He stars.ASTRONOMY & ASTROPHYSICS,707.
MLA 龙刚,et al."Formation of black holes from He stars".ASTRONOMY & ASTROPHYSICS 707(2026).

入库方式： OAI收割

来源：云南天文台

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