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Searching for Continuous Gravitational Waves in the Parkes Pulsar Timing Array Data Release 3

文献类型：期刊论文

作者Zhao, Shi-Yi19,20; Chen, Zu-Cheng6,18,21; Tremblay, Jacob Cardinal1,2; Goncharov, Boris1,2; Zhu, Xing-Jiang3,20; Bhat, N. D. Ramesh4; Curylo, Malgorzata5,11; Dai, Shi12,13; Di Marco, Valentina5,11,12; Ding, Hao14
刊名ASTROPHYSICAL JOURNAL
出版日期2025-10-20
卷号992期号:2页码:10
ISSN号0004-637X
DOI10.3847/1538-4357/ae0719
通讯作者Zhu, Xing-Jiang(zhuxj@bnu.edu.cn)
英文摘要We present results from an all-sky search for continuous gravitational waves from individual supermassive binary black holes using the third data release of the Parkes Pulsar Timing Array (PPTA). Even though we recover a common-spectrum stochastic process, potentially induced by a nanohertz gravitational-wave background, we find no evidence of continuous waves. Therefore, we place upper limits on the gravitational-wave strain amplitude: in the most sensitive frequency range around 10 nHz, we obtain a sky-averaged 95% credibility upper limit of approximate to 7 x 10-15. Our search is sensitive to supermassive binary black holes with a chirp mass of >= 109M circle dot up to a luminosity distance of 50 Mpc for our least sensitive sky direction and 200 Mpc for the most sensitive direction. This work provides at least 4 times better sensitivity in the 1-200 nHz frequency band than our last search based on the PPTA's first data release. We expect that PPTA will continue to play a key role in detecting continuous gravitational waves in the exciting era of nanohertz gravitational-wave astronomy.
WOS关键词YR DATA SET ; BLACK-HOLE BINARIES ; 2ND DATA RELEASE ; COMMON-SPECTRUM PROCESS ; BAYESIAN LIMITS ; MODEL ; CONSTRAINTS ; ASTROMETRY ; ASTROPY ; PACKAGE
资助项目National Natural Science Foundation of China ; Australian Government ; Victorian Higher Education State Investment Fund ; Victorian Government ; National Key Research and Development Program of China[2023YFC2206704] ; Fundamental Research Funds for the Central Universities ; Supplemental Funds for Major Scientific Research Projects of Beijing Normal University (Zhuhai)[ZHPT2025001] ; ARC Centre of Excellence for Gravitational Wave Discovery[CE230100016] ; Natural Science Foundation of Hunan Province[2025JJ40006] ; Innovative Research Group of Hunan Province[2024JJ1006] ; [12405056]
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001593230700001
出版者IOP Publishing Ltd
资助机构National Natural Science Foundation of China ; Australian Government ; Victorian Higher Education State Investment Fund ; Victorian Government ; National Key Research and Development Program of China ; Fundamental Research Funds for the Central Universities ; Supplemental Funds for Major Scientific Research Projects of Beijing Normal University (Zhuhai) ; ARC Centre of Excellence for Gravitational Wave Discovery ; Natural Science Foundation of Hunan Province ; Innovative Research Group of Hunan Province
源URL[http://ir.xao.ac.cn/handle/45760611-7/8241]  
专题脉冲星研究团组
通讯作者Zhu, Xing-Jiang
作者单位1.Albert Einstein Inst, Max Planck Inst Grav Phys, D-30167 Hannover, Germany
2.Leibniz Univ Hannover, D-30167 Hannover, Germany
3.Beijing Normal Univ, Inst Frontier Astron & Astrophys, Beijing 102206, Peoples R China
4.Curtin Univ, Int Ctr Radio Astron Res, Bentley, WA 6102, Australia
5.Monash Univ, Sch Phys & Astron, Clayton, Vic 3800, Australia
6.Hunan Normal Univ, Synerget Innovat Ctr Quantum Effects & Applicat, Changsha 410081, Hunan, Peoples R China
7.Chinese Acad Sci, Natl Astron Observ, Beijing 100101, Peoples R China
8.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Xinjiang, Peoples R China
9.CSIRO Sci Comp, Australian Technol Pk,Locked Bag 9013, Alexandria, NSW 1435, Australia
10.Swinburne Univ Technol, Ctr Astrophys & Supercomp, POB 218, Hawthorn, Vic 3122, Australia
推荐引用方式
GB/T 7714		 Zhao, Shi-Yi,Chen, Zu-Cheng,Tremblay, Jacob Cardinal,et al. Searching for Continuous Gravitational Waves in the Parkes Pulsar Timing Array Data Release 3[J]. ASTROPHYSICAL JOURNAL,2025,992(2):10.
APA Zhao, Shi-Yi.,Chen, Zu-Cheng.,Tremblay, Jacob Cardinal.,Goncharov, Boris.,Zhu, Xing-Jiang.,...&Zic, Andrew.(2025).Searching for Continuous Gravitational Waves in the Parkes Pulsar Timing Array Data Release 3.ASTROPHYSICAL JOURNAL,992(2),10.
MLA Zhao, Shi-Yi,et al."Searching for Continuous Gravitational Waves in the Parkes Pulsar Timing Array Data Release 3".ASTROPHYSICAL JOURNAL 992.2(2025):10.

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