Detectability of Ultra-compact X-Ray Binaries as LISA Sources
文献类型:期刊论文
作者 | Chen, Wen-Cong1,2; Liu DD(刘栋栋)3; Wang B(王博)3 |
刊名 | ASTROPHYSICAL JOURNAL LETTERS |
出版日期 | 2020-09-01 |
卷号 | 900期号:1页码:9 |
ISSN号 | 2041-8205 |
关键词 | Gravitational wave sources Gravitational waves X-ray binary stars Compact binary stars Stellar evolution |
DOI | 10.3847/2041-8213/abae66 |
产权排序 | 第3完成单位 |
文献子类 | Article |
英文摘要 | Ultra-compact X-ray binaries (UCXBs) are low-mass X-ray binaries with ultra-short orbital periods (usually less than 1 hr) and hydrogen-poor donor stars, which are proposed to be potential Laser Interferometer Space Antenna (LISA) sources. In this work, we first employ the Modules for Experiments in Stellar Astrophysics code to examine the parameter space of the progenitors of UCXBs that LISA will detect. Our simulations indicate that the initial binaries with a neutron star and a 0.4-3.5 M-circle dot companion star, in an orbit of initial orbital period smaller than the bifurcation period, could evolve into UCXBs, some of which will emit gravitational wave signals that can be detectable by LISA. However, the initial orbital periods of the binaries that will evolve into UCXB-LISA sources in a distance of 10 kpc are located in a very narrow range, i.e., the formation of these LISA source requires an extreme fine-tuning of initial parameter. According to the characteristic strains and the derived maximum detectable distances, four sources among eight UCXBs with the observed distances are expected to be detected by LISA. Based on the parameter space given by the detailed binary evolution models and the rapid binary star evolution code, the birthrate of UCXBs appearing as LISA sources in the Galaxy is estimated to be (2-2.6) x 10(-6) yr(-1). Considering the contribution of UCXBs in globular clusters, the number of UCXB-LISA sources can reach 240-320. Although the formation condition is severe, the detectability of UCXBs by LISA is still significant because it provides an opportunity to pursue full multi-messenger investigations. |
学科主题 | 天文学 ; 恒星与银河系 ; 恒星形成与演化 |
URL标识 | 查看原文 |
出版地 | TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND |
WOS关键词 | DOUBLE WHITE-DWARFS ; GRAVITATIONAL-WAVE SIGNAL ; LOW-MASS ; GLOBULAR-CLUSTERS ; POPULATION SYNTHESIS ; NEUTRON-STAR ; EVOLUTIONARY STATUS ; STELLAR EVOLUTION ; MAGNETIC BRAKING ; 4U 1820-30 |
资助项目 | National Natural Science Foundation of China[11873085] ; National Natural Science Foundation of China[11673059] ; National Natural Science Foundation of China[11521303] ; National Natural Science Foundation of China[11573016] ; National Natural Science Foundation of China[11733009] ; National Natural Science Foundation of China[11903075] ; Program for Innovative Research Team (in Science and Technology) at the University of Henan Province ; Western Light Youth Project of Chinese Academy of Sciences ; Chinese Academy of Sciences[QYZDB-SSW-SYS001] ; Yunnan Province[2018FB005] ; Yunnan Province[2019FJ001] |
WOS研究方向 | Astronomy & Astrophysics |
语种 | 英语 |
出版者 | IOP PUBLISHING LTD |
WOS记录号 | WOS:000566216500001 |
资助机构 | National Natural Science Foundation of China[11873085, 11673059, 11521303, 11573016, 11733009, 11903075] ; Program for Innovative Research Team (in Science and Technology) at the University of Henan Province ; Western Light Youth Project of Chinese Academy of Sciences ; Chinese Academy of Sciences[QYZDB-SSW-SYS001] ; Yunnan Province[2018FB005, 2019FJ001] |
源URL | [http://ir.ynao.ac.cn/handle/114a53/23706] |
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 |
通讯作者 | Chen, Wen-Cong |
作者单位 | 1.School of Science, Qingdao University of Technology, Qingdao 266525, People's Republic of China 2.School of Physics and Electrical Information, Shangqiu Normal University, Shangqiu 476000, 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 |
推荐引用方式 GB/T 7714 | Chen, Wen-Cong,Liu DD,Wang B. Detectability of Ultra-compact X-Ray Binaries as LISA Sources[J]. ASTROPHYSICAL JOURNAL LETTERS,2020,900(1):9. |
APA | Chen, Wen-Cong,Liu DD,&Wang B.(2020).Detectability of Ultra-compact X-Ray Binaries as LISA Sources.ASTROPHYSICAL JOURNAL LETTERS,900(1),9. |
MLA | Chen, Wen-Cong,et al."Detectability of Ultra-compact X-Ray Binaries as LISA Sources".ASTROPHYSICAL JOURNAL LETTERS 900.1(2020):9. |
入库方式: OAI收割
来源:云南天文台
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