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

doi:10.3847/1538-4357/ad12d3

YNAO OpenIR > 大样本恒星演化研究组

	Black Hole Ultracompact X-Ray Binaries as Galactic Low-frequency Gravitational Wave Sources: The He Star Channel
	Qin, Ke 1,2; Xu, Kun 1; Liu DD(刘栋栋)3 ; Jiang, Long 1,4; Wang B(王博)3 ; Chen, Wen-Cong 1,4
发表期刊	ASTROPHYSICAL JOURNAL
	2024
卷号	961 期号:1
DOI	10.3847/1538-4357/ad12d3
产权排序	第3完成单位
收录类别	SCI
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.
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
项目资助者	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]
语种	英语
学科领域	天文学
文章类型	Article
出版者	IOP Publishing Ltd
出版地	TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN	0004-637X
URL	查看原文
WOS记录号	WOS:001168427400001
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
关键词[WOS]	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
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
版本	出版稿
条目标识符	http://ir.ynao.ac.cn/handle/114a53/26461
专题	大样本恒星演化研究组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; [email protected]; 2.School of Physics, Zhengzhou University, Zhengzhou 450001, People's Republic of China; 3.Key Laboratory for the Structure and Evolution of Celestial Objects, Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, 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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