Searching for gravitational-wave bursts from cosmic string cusps with the Parkes Pulsar Timing Array

doi:10.1093/mnras/staa3721

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	Searching for gravitational-wave bursts from cosmic string cusps with the Parkes Pulsar Timing Array
	Yonemaru, N.8,9; Kuroyanagi, S.7,11; Hobbs, G.8; Takahashi, K.9,10; Zhu, X-J 5,6; Coles, W. A.4; Dai, S.8; Howard, E.2,3,8; Manchester, R.8; Reardon, D.1,5
刊名	MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
	2021-02-01
卷号	501 期号:1 页码:701-712
关键词	gravitational waves methods: data analysis pulsars: general
ISSN号	0035-8711
DOI	10.1093/mnras/staa3721
产权排序	14
英文摘要	Cosmic strings are potential gravitational-wave (GW) sources that can be probed by pulsar timing arrays (PTAs). In this work we develop a detection algorithm for a GW burst from a cusp on a cosmic string, and apply it to Parkes PTA data. We find four events with a false alarm probability less than 1 per cent. However further investigation shows that all of these are likely to be spurious. As there are no convincing detections we place upper limits on the GW amplitude for different event durations. From these bounds we place limits on the cosmic string tension of G mu similar to 10(-5), and highlight that this bound is independent from those obtained using other techniques. We discuss the physical implications of our results and the prospect of probing cosmic strings in the era of Square Kilometre Array.
资助项目	Commonwealth of Australia ; JSPS KAKENHI[JP15H05896] ; JSPS KAKENHI[JP16H05999] ; JSPS KAKENHI[JP17H01110] ; JSPS KAKENHI[JP19J11575] ; JSPS KAKENHI[17K14282] ; JSPS ; Career Development Project for Researchers of Allied Universities ; ARC[CE170100004] ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; National Key Research and Development Program of China[2017YFA0402602] ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences[XDB230102000] ; Australian Research Council[FL150100148] ; Australian Research Council[FT190100155]
WOS关键词	PACKAGE ; TEMPO2
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	OXFORD UNIV PRESS
WOS记录号	WOS:000608474800056
资助机构	Commonwealth of Australia ; JSPS KAKENHI ; JSPS ; Career Development Project for Researchers of Allied Universities ; ARC ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; National Key Research and Development Program of China ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Australian Research Council
内容类型	期刊论文
源URL	[http://ir.xao.ac.cn/handle/45760611-7/3841]
专题	脉冲星研究团组
通讯作者	Hobbs, G.
作者单位	1.Swinburne Univ Technol, Ctr Astrophys & Supercomp, POB 218, Hawthorn, Vic 3122, Australia 2.Griffith Univ, Ctr Quantum Dynam, Brisbane, Qld 4111, Australia 3.Macquarie Univ, Dept Phys & Astron, Sydney, NSW 2109, Australia 4.Univ Calif San Diego, Elect & Comp Engn, La Jolla, CA 92093 USA 5.OzGrav Australian Res Council Ctr Excellence Grav, Hawthorn, Vic, Australia 6.Monash Univ, Sch Phys & Astron, Clayton, Vic 3800, Australia 7.Nagoya Univ, Grad Sch Sci, Nagoya, Aichi 4648601, Japan 8.CSIRO Astron & Space Sci, POB 76, Epping, NSW 1710, Australia 9.Kumamoto Univ, Grad Sch Sci & Technol, Kumamoto 8608555, Japan 10.Kumamoto Univ, Int Res Org Adv Sci & Technol, Kumamoto 8608555, Japan
推荐引用方式 GB/T 7714	Yonemaru, N.,Kuroyanagi, S.,Hobbs, G.,et al. Searching for gravitational-wave bursts from cosmic string cusps with the Parkes Pulsar Timing Array[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2021,501(1):701-712.
APA	Yonemaru, N..,Kuroyanagi, S..,Hobbs, G..,Takahashi, K..,Zhu, X-J.,...&Wang, J-B.(2021).Searching for gravitational-wave bursts from cosmic string cusps with the Parkes Pulsar Timing Array.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,501(1),701-712.
MLA	Yonemaru, N.,et al."Searching for gravitational-wave bursts from cosmic string cusps with the Parkes Pulsar Timing Array".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 501.1(2021):701-712.