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Black Hole Ultracompact X-Ray Binaries as Galactic Low-frequency Gravitational Wave Sources: The He Star Channel

文献类型：期刊论文

作者Qin, Ke1,3; Xu, Kun1; Liu DD(刘栋栋)2; Jiang, Long1,4; Wang B(王博)2; Chen, Wen-Cong1,4
刊名ASTROPHYSICAL JOURNAL
出版日期2024
卷号961期号:1
ISSN号0004-637X
DOI10.3847/1538-4357/ad12d3
产权排序第3完成单位
文献子类Article
英文摘要Black hole (BH) ultracompact X-ray binaries (UCXBs) are potential Galactic low-frequency gravitational wave (GW) sources. As an alternative channel, BH UCXBs can evolve from BH+He star binaries. In this work, we perform a detailed stellar evolution model for the formation and evolution of BH UCXBs evolving from the He star channel to diagnose their detectability as low-frequency GW sources. Our calculations found that some nascent BH+He star binaries after the common-envelope (CE) phase could evolve into UCXB-LISA sources with a maximum GW frequency of similar to 5 mHz, which can be detected in a distance of 10 kpc (or 100 kpc). Once BH+He star systems become UCXBs through mass transfer, they would emit X-ray luminosities of similar to 10(38) erg s(-1), making them ideal multimessenger objects. If the initial He-star masses are >= 0.7 M-circle dot, those systems are likely to experience two Roche lobe overflows, and the X-ray luminosity can reach a maximum of 3.5 x 10(39) erg s(-1) in the second mass-transfer stage. The initial He-star masses and initial orbital periods of progenitors of Galactic BH UCXB-LISA sources are in the range of 0.32-2.9 M-circle dot and 0.02-0.19 days, respectively. Nearly all BH+He star binaries in the above parameter space can evolve into GW sources whose chirp masses can be accurately measured. Employing a population synthesis simulation, we predict the birthrate and detection number of Galactic BH UCXB-LISA sources evolving from the He star channel are R = 2.2 x 10(-6) yr(-1) and 33 for an optimistic CE parameter, respectively.
学科主题天文学
URL标识查看原文
出版地TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
WOS关键词ULTRA-COMPACT BINARIES ; WHITE-DWARF BINARIES ; ROCHE LOBE OVERFLOW ; MASS HELIUM STARS ; SUBDWARF B-STARS ; NEUTRON-STAR ; POPULATION SYNTHESIS ; CONVECTIVE BOUNDARIES ; CYG X-3 ; EVOLUTION
资助项目National Natural Science Foundation of China; Western Light Project of Chinese Academy of Sciences[XBZG-ZDSYS-202117]; Youth Innovation Promotion Association - Chinese Academy of Sciences[2021058]; Natural Science Foundation
WOS研究方向Astronomy & Astrophysics
语种英语
出版者IOP Publishing Ltd
WOS记录号WOS:001168427400001
资助机构National Natural Science Foundation of China ; Western Light Project of Chinese Academy of Sciences[XBZG-ZDSYS-202117] ; Youth Innovation Promotion Association - Chinese Academy of Sciences[2021058] ; Natural Science Foundation[ZR2021MA013] ; [12273014] ; [12225304] ; [12273105] ; [12373044] ; [12203051]
版本出版稿
源URL[http://ir.ynao.ac.cn/handle/114a53/26461]  
专题云南天文台_大样本恒星演化研究组
云南天文台_中国科学院天体结构与演化重点实验室
作者单位1.School of Science, Qingdao University of Technology, Qingdao 266525, People's Republic of China; chenwc@pku.edu.cn;
2.Key Laboratory for the Structure and Evolution of Celestial Objects, Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, People's Republic of China;
3.School of Physics, Zhengzhou University, Zhengzhou 450001, People's Republic of China;
4.School of Physics and Electrical Information, Shangqiu Normal University, Shangqiu 476000, People's Republic of China
推荐引用方式
GB/T 7714		 Qin, Ke,Xu, Kun,Liu DD,et al. Black Hole Ultracompact X-Ray Binaries as Galactic Low-frequency Gravitational Wave Sources: The He Star Channel[J]. ASTROPHYSICAL JOURNAL,2024,961(1).
APA Qin, Ke,Xu, Kun,刘栋栋,Jiang, Long,王博,&Chen, Wen-Cong.(2024).Black Hole Ultracompact X-Ray Binaries as Galactic Low-frequency Gravitational Wave Sources: The He Star Channel.ASTROPHYSICAL JOURNAL,961(1).
MLA Qin, Ke,et al."Black Hole Ultracompact X-Ray Binaries as Galactic Low-frequency Gravitational Wave Sources: The He Star Channel".ASTROPHYSICAL JOURNAL 961.1(2024).

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