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On the Surface Helium Abundance of B-type Hot Subdwarf Stars from the WD plus MS Channel of Type Ia Supernovae

文献类型：期刊论文

作者Ji RJ(吉瑞杰)1,2,3,4; Meng XC(孟祥存)1,3,4; Liu ZW(柳正伟)1,3,4
刊名RESEARCH IN ASTRONOMY AND ASTROPHYSICS
出版日期2024-05-01
卷号24期号:5
ISSN号1674-4527
关键词(stars:) subdwarfs atomic processes diffusion
DOI10.1088/1674-4527/ad3988
产权排序第1完成单位
文献子类Article
英文摘要The origin of intermediate helium (He)-rich hot subdwarfs is still unclear. Previous studies have suggested that some surviving Type Ia supernovae (SNe Ia) companions from the white dwarf + main-sequence (WD+MS) channel may contribute to the intermediate He-rich hot subdwarfs. However, previous studies ignored the impact of atomic diffusion on the post-explosion evolution of surviving companion stars of SNe Ia, leading to the aspect that they could not explain the observed surface He abundance of intermediate He-rich hot subdwarfs. In this work, by taking the atomic diffusion and stellar wind into account, we trace the surviving companions of SNe Ia from the WD+MS channel using the one-dimensional stellar evolution code MESA until they evolve into hot subdwarfs. We find that the surface He-abundances of our surviving companion models during their core He-burning phases are in a range of - 1 less than or similar to log ( N-He / N-H ) less than or similar to 0 , which are consistent with those observed in intermediate He-rich hot subdwarfs. This seems to further support the notion that it is possible for surviving companions of SNe Ia in the WD+MS channel to form some intermediate He-rich hot subdwarfs.
学科主题天文学 ; 恒星与银河系
URL标识查看原文
出版地20A DATUN RD, CHAOYANG, BEIJING, 100101, PEOPLES R CHINA
WOS关键词POSSIBLE SURVIVING COMPANIONS ; WHITE-DWARF MODELS ; GAIA DR2 ; CONVECTIVE BOUNDARIES ; ELEMENT DIFFUSION ; ATOMIC DIFFUSION ; MASS-LOSS ; MODULES ; PROGENITORS ; EVOLUTION
资助项目National Natural Science Foundation of China[12288102]; National Natural Science Foundation of China[12333008]; National Key R&D Program of China[2021YFA1600403]; Yunnan Ten Thousand Talents Plan-Young & Elite Talents Project; CAS Light of West China Program; International Centre of Supernovae, Yunnan Key Laboratory[202302AN360001]; Yunnan Revitalization Talent Support Program-Science & Technology Champion Project[202305AB350003]; Yunnan Fundamental Research Projects[202401BC070007]; Yunnan Fundamental Research Projects[202201BC070003]; China Manned Space Project
WOS研究方向Astronomy & Astrophysics
语种英语
出版者NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES
WOS记录号WOS:001214792500001
资助机构National Natural Science Foundation of China[12288102, 12333008] ; National Key R&D Program of China[2021YFA1600403] ; Yunnan Ten Thousand Talents Plan-Young & Elite Talents Project ; CAS Light of West China Program ; International Centre of Supernovae, Yunnan Key Laboratory[202302AN360001] ; Yunnan Revitalization Talent Support Program-Science & Technology Champion Project[202305AB350003] ; Yunnan Fundamental Research Projects[202401BC070007, 202201BC070003] ; China Manned Space Project
版本出版稿
源URL[http://ir.ynao.ac.cn/handle/114a53/27146]  
专题云南天文台_大样本恒星演化研究组
云南天文台_中国科学院天体结构与演化重点实验室
作者单位1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, Kunming 650216, China; jiruijie@ynao.ac.cn, xiangcunmeng@ynao.ac.cn, zwliu@ynao.ac.cn;
2.University of Chinese Academy of Sciences, Beijing 100049, China;
3.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650216, China;
4.International Centre of Supernovae (ICESUN), Yunnan Key Laboratory, Kunming 650216, China
推荐引用方式
GB/T 7714		 Ji RJ,Meng XC,Liu ZW. On the Surface Helium Abundance of B-type Hot Subdwarf Stars from the WD plus MS Channel of Type Ia Supernovae[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2024,24(5).
APA 吉瑞杰,孟祥存,&柳正伟.(2024).On the Surface Helium Abundance of B-type Hot Subdwarf Stars from the WD plus MS Channel of Type Ia Supernovae.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,24(5).
MLA 吉瑞杰,et al."On the Surface Helium Abundance of B-type Hot Subdwarf Stars from the WD plus MS Channel of Type Ia Supernovae".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 24.5(2024).

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来源：云南天文台

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