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	Evidence for different gravitational-wave sources in the NANOGrav dataset
	Bian, Ligong; Cai, Rong-Gen; Liu, Jing3; Yang, Xing-Yu; Zhou, Ruiyu
刊名	PHYSICAL REVIEW D
	2021
卷号	103期号:8页码:L081301
ISSN号	2470-0010
DOI	10.1103/PhysRevD.103.L081301
英文摘要	The NANOGrav Collaboration recently reported a strong evidence for a stochastic common-spectrum process in the pulsar-timing data. We evaluate the evidence of interpreting this process as mergers of super massive black hole binaries and/or various stochastic gravitational-wave background sources in the early Universe, including first-order phase transitions, cosmic strings, domain walls, and large amplitude curvature perturbations. We discuss the implications of the constraints on these possible sources. It is found that the data shows a positive evidence in favor of the cosmic strings against other gravitational-wave sources based on the Bayes factor analysis.
学科主题	Astronomy & Astrophysics ; Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/27320]
专题	理论物理研究所_理论物理所1978-2010年知识产出
作者单位	1.Chongqing Univ, Dept Phys, Chongqing 401331, Peoples R China 2.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, POB 2735, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Sch Phys Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China 4.Univ Chinese Acad Sci, Sch Fundamental Phys & Math Sci, Hangzhou Inst Adv Study, Hangzhou 310024, Peoples R China
推荐引用方式 GB/T 7714	Bian, Ligong,Cai, Rong-Gen,Liu, Jing,et al. Evidence for different gravitational-wave sources in the NANOGrav dataset[J]. PHYSICAL REVIEW D,2021,103(8):L081301.
APA	Bian, Ligong,Cai, Rong-Gen,Liu, Jing,Yang, Xing-Yu,&Zhou, Ruiyu.(2021).Evidence for different gravitational-wave sources in the NANOGrav dataset.PHYSICAL REVIEW D,103(8),L081301.
MLA	Bian, Ligong,et al."Evidence for different gravitational-wave sources in the NANOGrav dataset".PHYSICAL REVIEW D 103.8(2021):L081301.

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