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| A Possible Formation Scenario of the Gaia BH1: Inner Binary Merger in Triple Systems | |
Li, Zhuowen1; Zhu, Chunhua1 ; Lu, Xizhen1; Lue, Guoliang1,2; Li, Lin1; Liu, Helei1; Guo, Sufen1; Yu, Jinlong3
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| 2024-11-01 | |
| Source Publication | ASTROPHYSICAL JOURNAL LETTERS
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| ISSN | 2041-8205 |
| Volume | 975Issue:1Pages:L8 |
| Contribution Rank | 2 |
| Abstract | Based on astrometric measurements and spectral analysis from Gaia DR3, two quiescent black hole (BH) binaries, Gaia BH1 and BH2, have been identified. Their origins remain controversial, particularly for Gaia BH1. By considering a rapidly rotating (omega/omega crit = 0.8) and strongly magnetized (B 0 = 5000 G) merger product, we find that, at typical Galactic metallicity, the merger product can undergo efficient chemically homogeneous evolution. This results in the merger product having a significantly smaller radius during its evolution compared to that of a normally evolving massive star. Under the condition that the initial triple stability is satisfied, we use the Multiple Stellar Evolution code and the MESA code to identify an initial hierarchical triple that can evolve into Gaia BH1. It initially consists of three stars with masses of 9.03 M circle dot, 3.12 M circle dot, and 1 M circle dot, with inner and outer orbital periods of 2.21 days and 121.92 days, and inner and outer eccentricities of 0.41 and 0.45, respectively. This triple initially experiences triple evolution dynamics instability (TEDI) followed by Roche lobe overflow (RLOF). During RLOF, the inner orbit shrinks, and tidal effects gradually suppress the TEDI. Eventually, the inner binary undergoes a merger through contact (or collision). Finally, using models of rapidly rotating and strongly magnetic stars, along with standard core-collapse supernova (SN) or failed supernova (FSN) models, we find that a postmerger binary (PMB) consisting of an 12.11 M circle dot merger product and a 1 M circle dot companion star (originally an outer tertiary) can avoid RLOF. After an SN or FSN with a low ejected mass of similar to 0.22 M circle dot and a low kick velocity ( 46-33+25kms-1 or 9-8+16kms-1 ), the PMB can form Gaia BH1 in the Galactic disk. |
| DOI | 10.3847/2041-8213/ad8653 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | STELLAR COLLISION PRODUCTS ; MASSIVE STAR EVOLUTION ; FOSSIL MAGNETIC-FIELDS ; BLACK-HOLE BINARIES ; ANGULAR-MOMENTUM LOSS ; LONG-TERM EVOLUTION ; WOLF-RAYET STARS ; POPULATION SYNTHESIS ; BLUE STRAGGLERS ; DIFFERENTIAL ROTATION |
| Funding Project | MOST divided by NSFC divided by National Natural Science Foundation of China-Xinjiang Joint Fund (NSFC-Xinjiang Joint Fund)https://doi.org/10.13039/100017053[U2031204] ; MOST divided by NSFC divided by National Natural Science Foundation of China-Xinjiang Joint Fund (NSFC-Xinjiang Joint Fund)https://doi.org/10.13039/100017053[12163005] ; MOST divided by NSFC divided by National Natural Science Foundation of China-Xinjiang Joint Fund (NSFC-Xinjiang Joint Fund)https://doi.org/10.13039/100017053[12373038] ; MOST divided by NSFC divided by National Natural Science Foundation of China-Xinjiang Joint Fund (NSFC-Xinjiang Joint Fund)https://doi.org/10.13039/100017053[12288102] ; National Natural Science Foundation of China[2022D01D85] ; National Natural Science Foundation of China[2022TSYCLJ0006] ; Natural Science Foundation of Xinjiang[CMS-CSST-2021-A10] ; China Manned Space Project |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:001342110300001 |
| Publisher | IOP Publishing Ltd |
| Funding Organization | MOST divided by NSFC divided by National Natural Science Foundation of China-Xinjiang Joint Fund (NSFC-Xinjiang Joint Fund)https://doi.org/10.13039/100017053 ; National Natural Science Foundation of China ; Natural Science Foundation of Xinjiang ; China Manned Space Project |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/7081 |
| Collection | 射电天文研究室_理论天体物理研究团组 |
| Corresponding Author | Li, Zhuowen; Zhu, Chunhua; Lue, Guoliang |
| Affiliation | 1.Xinjiang Univ, Sch Phys Sci & Technol, Urumqi 830046, Peoples R China 2.Chinese Acad Sci, Xinjiang Observ, Urumqi 830011, Peoples R China 3.Tarim Univ, Coll Mech & Elect Engn, Alar 843300, Peoples R China |
| Recommended Citation GB/T 7714 | Li, Zhuowen,Zhu, Chunhua,Lu, Xizhen,et al. A Possible Formation Scenario of the Gaia BH1: Inner Binary Merger in Triple Systems[J]. ASTROPHYSICAL JOURNAL LETTERS,2024,975(1):L8. |
| APA | Li, Zhuowen.,Zhu, Chunhua.,Lu, Xizhen.,Lue, Guoliang.,Li, Lin.,...&Yu, Jinlong.(2024).A Possible Formation Scenario of the Gaia BH1: Inner Binary Merger in Triple Systems.ASTROPHYSICAL JOURNAL LETTERS,975(1),L8. |
| MLA | Li, Zhuowen,et al."A Possible Formation Scenario of the Gaia BH1: Inner Binary Merger in Triple Systems".ASTROPHYSICAL JOURNAL LETTERS 975.1(2024):L8. |
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| Li-2024-A Possible F（785KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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