New Potential Ultracompact X-Ray Binaries for Space-based Gravitational-wave Detectors from a Low-mass Main-sequence Companion Channel
文献类型：期刊论文
| 作者 | Chen, Minghua1,2; Liu, Jinzhong1,2
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| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2025-03-10 |
| 卷号 | 981期号:2页码:175 |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/adb618 |
| 产权排序 | 1 |
| 英文摘要 | We investigate the formation and evolution of ultracompact X-ray binaries (UCXBs) using the COMPAS binary evolution code, starting from the zero-age main sequence (MS). Focusing on the low-mass MS companion channel, we simulate gravitational-wave (GW) signals from UCXBs with LEGWORK and evaluate their detectability by space-based observatories such as Taiji and TianQin. By incorporating signal-to-noise ratio (SNR) calculations with a threshold of SNR > 5, we provide a realistic framework to assess the detectability of the GW source. Our analysis suggests that the Milky Way currently hosts 7-32 observable UCXBs from the MS companion channel. Taiji or LISA alone could detect one to six sources over an 8 yr observation period, while TianQin, due to its high-frequency sensitivity, contributes to detecting systems with extremely short orbital periods and can also detect one to four sources. Comparison with sensitivity curves validates UCXBs as detectable GW sources, particularly at greater Galactic distances. This study improves our understanding of the evolution of UCXBs and their role as GW sources. By integrating population synthesis, SNR-based analyses, and observational data, we establish UCXBs as significant targets for GW astronomy, paving the way for future missions and theoretical studies of compact binary systems. |
| WOS关键词 | ACCRETION-INDUCED COLLAPSE ; ULTRA-COMPACT BINARIES ; HELIUM WHITE-DWARFS ; MILLISECOND PULSAR ; GLOBULAR-CLUSTERS ; ORBITAL PERIOD ; EVOLUTION ; STAR ; STELLAR ; DISCOVERY |
| 资助项目 | Tianshan Talent Training Program ; Central Guidance for Local Science and Technology Development Fund[ZYYD2025QY27] ; National Natural Science Foundation of China NSFC[12433007] ; China Manned Space Project[CMS-CSST-2021-A08] ; [2023TSYCCX0101] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001439716500001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | Tianshan Talent Training Program ; Central Guidance for Local Science and Technology Development Fund ; National Natural Science Foundation of China NSFC ; China Manned Space Project |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/7484]  |
| 专题 | 光学天文与技术应用研究室_变星研究团组 |
| 通讯作者 | Liu, Jinzhong |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Minghua,Liu, Jinzhong. New Potential Ultracompact X-Ray Binaries for Space-based Gravitational-wave Detectors from a Low-mass Main-sequence Companion Channel[J]. ASTROPHYSICAL JOURNAL,2025,981(2):175. |
| APA | Chen, Minghua,&Liu, Jinzhong.(2025).New Potential Ultracompact X-Ray Binaries for Space-based Gravitational-wave Detectors from a Low-mass Main-sequence Companion Channel.ASTROPHYSICAL JOURNAL,981(2),175. |
| MLA | Chen, Minghua,et al."New Potential Ultracompact X-Ray Binaries for Space-based Gravitational-wave Detectors from a Low-mass Main-sequence Companion Channel".ASTROPHYSICAL JOURNAL 981.2(2025):175. |
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