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A Possible Formation Scenario of the Gaia ID 3425577610762832384: Inner Binary Merger inside a Triple Common Envelope

文献类型：期刊论文

作者Li, Zhuowen3; Lu, Xizhen3; Lu, Guoliang1,3; Zhu, Chunhua3; Liu, Helei3; Yu, Jinlong2
刊名ASTROPHYSICAL JOURNAL LETTERS
出版日期2025-02-01
卷号979期号:2页码:L37
ISSN号2041-8205
DOI10.3847/2041-8213/ada614
产权排序2
英文摘要Recently, an identified noninteracting black hole (BH) binary, Gaia ID 3425577610762832384 (hereafter G3425), contains a BH (similar to 3.6 M circle dot) falling within the mass gap and has a nearly circular orbit, challenging the classical binary evolution and supernova theory. Here, we propose that G3425 originates from a triple through a triple common envelope (TCE) evolution. The G3425 progenitor originally may consist of three stars with masses of 1.49, 1.05, and 21.81 M circle dot and inner and outer orbital periods of 4.22 and 1961.78 days, respectively. As evolution proceeds, the tertiary fills its Roche lobe, leading to a TCE. We find that the orbital energy generated by the inspiral of the inner binary serves as additional energy imparted for ejecting the common envelope (CE), accounting for similar to 97% of the binding energy in our calculations. This means that the outer orbit needs to expend only a small amount of the orbital energy to successfully eject the CE. The outcome of the TCE is a binary consisting of a 2.54 M circle dot merger produced by the inner binary merger and a 7.67 M circle dot helium star whose CE successfully ejected, with an orbital period of 547.53 days. The resulting post-TCE binary (PTB) has an orbital period that is 1-2 orders of magnitude greater than the orbital period of a successfully ejected classical binary CE. In subsequent simulations, we find that the successfully ejected helium star has a 44.2% probability of forming a BH. In the case of a noncomplete fallback forming a BH, with an ejected mass of 2.6 M circle dot and a relatively low natal kick ( 11-5+16 km s-1 to 49-39+39 km s-1), this PTB can form G3425 in the Milky Way.
WOS关键词BLACK-HOLE BINARIES ; WOLF-RAYET STARS ; M-CIRCLE-DOT ; POPULATION SYNTHESIS ; CONVECTIVE BOUNDARIES ; HIERARCHICAL TRIPLES ; DYNAMICAL EVOLUTION ; STELLAR-EVOLUTION ; BINDING-ENERGY ; NEUTRON-STARS
资助项目MOST divided by National Natural Science Foundation of China (NSFC)https://doi.org/10.13039/501100001809[U2031204] ; MOST divided by National Natural Science Foundation of China (NSFC)https://doi.org/10.13039/501100001809[12163005] ; MOST divided by National Natural Science Foundation of China (NSFC)https://doi.org/10.13039/501100001809[12373038] ; MOST divided by National Natural Science Foundation of China (NSFC)https://doi.org/10.13039/501100001809[12288102] ; National Natural Science Foundation of China[2022TSYCLJ0006] ; National Natural Science Foundation of China[2022D01D85] ; Natural Science Foundation of Xinjiang[CMS-CSST-2021-A10] ; China Manned Space Project
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001408872800001
出版者IOP Publishing Ltd
资助机构MOST divided by National Natural Science Foundation of China (NSFC)https://doi.org/10.13039/501100001809 ; National Natural Science Foundation of China ; Natural Science Foundation of Xinjiang ; China Manned Space Project
源URL[http://ir.xao.ac.cn/handle/45760611-7/7417]  
专题射电天文研究室_理论天体物理研究团组
通讯作者Li, Zhuowen
作者单位1.Chinese Acad Sci, Xinjiang Observ, Urumqi 830011, Peoples R China
2.Tarim Univ, Coll Mech & Elect Engn, Alar 843300, Peoples R China
3.Xinjiang Univ, Sch Phys Sci & Technol, Urumqi 830046, Peoples R China
推荐引用方式
GB/T 7714		 Li, Zhuowen,Lu, Xizhen,Lu, Guoliang,et al. A Possible Formation Scenario of the Gaia ID 3425577610762832384: Inner Binary Merger inside a Triple Common Envelope[J]. ASTROPHYSICAL JOURNAL LETTERS,2025,979(2):L37.
APA Li, Zhuowen,Lu, Xizhen,Lu, Guoliang,Zhu, Chunhua,Liu, Helei,&Yu, Jinlong.(2025).A Possible Formation Scenario of the Gaia ID 3425577610762832384: Inner Binary Merger inside a Triple Common Envelope.ASTROPHYSICAL JOURNAL LETTERS,979(2),L37.
MLA Li, Zhuowen,et al."A Possible Formation Scenario of the Gaia ID 3425577610762832384: Inner Binary Merger inside a Triple Common Envelope".ASTROPHYSICAL JOURNAL LETTERS 979.2(2025):L37.

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