Formation of a Possible Black-hole Ultracompact X-Ray Binary with the Shortest Orbital Period
文献类型：期刊论文
| 作者 | Yang, Xing-Peng3; Xu, Kun3; Gao, Zhi-Fu2; Jiang, Long1,3; Chen, Wen-Cong1,3 |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2025-06-20 |
| 卷号 | 986期号:2页码:219 |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/add479 |
| 产权排序 | 2 |
| 英文摘要 | In the bulge of M31, the Chandra observations discovered a possible black hole (BH) ultracompact X-ray binary (UCXB) Seq.1 with an orbital period of 7.7 minutes and a maximum X-ray luminosity LX=1.09-0.01+0.02x1038ergs-1 in the 0.5-8 keV band. The minimum orbital period of the BH UCXBs predicted by the standard magnetic braking (MB) model is longer than 8.3 minutes. In this work, we investigate whether the convection- and rotation-boosted (CARB) MB prescription can account for the formation of a BH UCXB such as Seq.1. Our detailed stellar evolution models indicate that the CARB MB law can drive isolated BH-main-sequence (MS) binaries to evolve toward BH UCXBs with an orbital period of 7.7 minutes, in which a low-mass white dwarf transfers the material onto a BH in a short-term mass-transfer episode, producing an X-ray luminosity of similar to 1038 erg s-1. We also obtain an initial parameter space of BH-MS binaries as the progenitors of Seq.1 in the donor-star masses and orbital periods plane, which can be applied to future population synthesis simulations. If Seq.1 is indeed a BH UCXB, future spaceborne gravitational wave (GW) detectors can detect the low-frequency GW signals from this source, and a tidal disruption event will be expected after 0.12 Myr. |
| WOS关键词 | HELIUM WHITE-DWARFS ; MAGNETIC BRAKING ; LOW-MASS ; CONVECTIVE BOUNDARIES ; EVOLUTION ; ASTROPHYSICS ; MODULES ; ROTATION ; LMXBS ; PULSARS |
| 资助项目 | National Natural Science Foundation of China ; National Key Research and Development Program of China[2022YFC2205202] ; Major Science and Technology Program of Xinjiang Uygur Autonomous Region[2022A03013-1] ; Natural Science Foundation[ZR2021MA013] ; [12273014] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001511972000001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | National Natural Science Foundation of China ; National Key Research and Development Program of China ; Major Science and Technology Program of Xinjiang Uygur Autonomous Region ; Natural Science Foundation |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/7858]  |
| 专题 | 脉冲星研究团组 |
| 通讯作者 | Chen, Wen-Cong |
| 作者单位 | 1.Shangqiu Normal Univ, Sch Phys & Elect Informat, Shangqiu 476000, Peoples R China 2.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Xinjiang, Peoples R China 3.Qingdao Univ Technol, Sch Sci, Qingdao 266525, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Xing-Peng,Xu, Kun,Gao, Zhi-Fu,et al. Formation of a Possible Black-hole Ultracompact X-Ray Binary with the Shortest Orbital Period[J]. ASTROPHYSICAL JOURNAL,2025,986(2):219. |
| APA | Yang, Xing-Peng,Xu, Kun,Gao, Zhi-Fu,Jiang, Long,&Chen, Wen-Cong.(2025).Formation of a Possible Black-hole Ultracompact X-Ray Binary with the Shortest Orbital Period.ASTROPHYSICAL JOURNAL,986(2),219. |
| MLA | Yang, Xing-Peng,et al."Formation of a Possible Black-hole Ultracompact X-Ray Binary with the Shortest Orbital Period".ASTROPHYSICAL JOURNAL 986.2(2025):219. |
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