Formation of Be Stars via Wind Accretion: Case Study on Black Hole plus Be Star Binaries
文献类型：期刊论文
| 作者 | Li ZW(李振威)1,2; Jia S(贾石)1,2; Wei, Dandan3; Ge HW(葛宏伟)1,2; Chen HL(陈海亮)1,2; Zhang, Yangyang4; Chen XF(陈雪飞)1,2; Han ZW(韩占文)1,2 |
| 刊名 | ASTROPHYSICAL JOURNAL LETTERS
 |
| 出版日期 | 2026-01-10 |
| 卷号 | 996期号:2 |
| ISSN号 | 2041-8205 |
| DOI | 10.3847/2041-8213/ae3008 |
| 产权排序 | 第1完成单位 |
| 文献子类 | Article |
| 英文摘要 | Be stars are rapidly rotating main-sequence stars that play a crucial role in understanding stellar evolution and binary interactions. In this Letter, we propose a new formation scenario for black hole (BH) + Be star binaries (hereafter BHBe binaries), where the Be star is produced through the wind Roche lobe overflow (WRLOF) mechanism. Our analysis is based on numerical simulations of the WRLOF process in massive binaries, building on recent theoretical work. We demonstrate that the WRLOF model can efficiently form BHBe binaries under reasonable assumptions on stellar wind velocities. Using rapid binary population synthesis, we estimate the population of such systems in the Milky Way, predicting similar to 1800-3200 currently existing BHBe binaries originating from the WRLOF channel. These systems are characterized by high eccentricities and exceptionally wide orbits, with typical orbital periods exceeding 1000 days and a peak distribution around similar to 10,000 days. Due to their long orbital separations, these BHBe binaries are promising targets for future detection via astrometric and interferometric observations. |
| 学科主题 | 天文学 ; 恒星与银河系 |
| URL标识 | 查看原文 |
| 出版地 | No.2 The Distillery, Glassfields, Avon Street, Bristol, ENGLAND |
| WOS关键词 | ROCHE-LOBE OVERFLOW ; X-RAY BINARIES ; HUMPHREYS-DAVIDSON LIMIT ; MASS-TRANSFER ; POPULATION SYNTHESIS ; HYDRODYNAMICAL SIMULATIONS ; CONVECTIVE BOUNDARIES ; RED SUPERGIANTS ; B-STARS ; EVOLUTION |
| 资助项目 | MOST divided by National Natural Science Foundation of China (NSFC)[12125303]; MOST divided by National Key Research and Development Program of China (NKPs)[2021YFA1600403] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001657939200001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | MOST divided by National Natural Science Foundation of China (NSFC)[12125303] ; MOST divided by National Key Research and Development Program of China (NKPs)[2021YFA1600403] |
| 版本 | 出版稿 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/28859]  |
| 专题 | 云南天文台_大样本恒星演化研究组 |
| 通讯作者 | Li ZW(李振威) |
| 作者单位 | 1.University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China; 2.International Centre of Supernovae (ICESUN), Yunnan Key Laboratory of Supernova Research, Yunnan Observatories, Chinese Academy of Sciences (CAS), Kunming 650216, People’s Republic of China; lizw@ynao.ac.cn, cxf@ynao.ac.cn; 3.Institute of Science and Technology Austria: Klosterneuburg, Lower Austria, AT, Austria; 4.Zhoukou Normal University, East Wenchang Street, Chuanhui District, Zhoukou, 466001, People’s Republic of China |
| 推荐引用方式 GB/T 7714 | Li ZW,Jia S,Wei, Dandan,et al. Formation of Be Stars via Wind Accretion: Case Study on Black Hole plus Be Star Binaries[J]. ASTROPHYSICAL JOURNAL LETTERS,2026,996(2). |
| APA | 李振威.,贾石.,Wei, Dandan.,葛宏伟.,陈海亮.,...&韩占文.(2026).Formation of Be Stars via Wind Accretion: Case Study on Black Hole plus Be Star Binaries.ASTROPHYSICAL JOURNAL LETTERS,996(2). |
| MLA | 李振威,et al."Formation of Be Stars via Wind Accretion: Case Study on Black Hole plus Be Star Binaries".ASTROPHYSICAL JOURNAL LETTERS 996.2(2026). |
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来源：云南天文台
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