Constraining Cosmological Phase Transitions with the Parkes Pulsar Timing Array

doi:10.1103/PhysRevLett.127.251303

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	Constraining Cosmological Phase Transitions with the Parkes Pulsar Timing Array
	Xue, Xiao 10,11; Bian, Ligong 12,13; Shu, Jing 10,14,15,16; Yuan, Qiang 15,17,18; Zhu, Xingjiang 1,3; Bhat, N. D. Ramesh ; Dai, Shi 5; Feng, Yi 6; Goncharov, Boris 1; Hobbs, George
刊名	PHYSICAL REVIEW LETTERS
	2021
卷号	127 期号:25 页码:251303
关键词	STANDARD MODEL LIMITS DISPERSION PACKAGE TEMPO2 NOISE
ISSN号	0031-9007
DOI	10.1103/PhysRevLett.127.251303
英文摘要	A cosmological first-order phase transition is expected to produce a stochastic gravitational wave background. If the phase transition temperature is on the MeV scale, the power spectrum of the induced stochastic gravitational waves peaks around nanohertz frequencies, and can thus be probed with high-precision pulsar timing observations. We search for such a stochastic gravitational wave background with the latest data set of the Parkes Pulsar Timing Array. We find no evidence for a Hellings-Downs spatial correlation as expected for a stochastic gravitational wave background. Therefore, we present constraints on first-order phase transition model parameters. Our analysis shows that pulsar timing is particularly sensitive to the low-temperature (T similar to 1-100 MeV) phase transition with a duration (beta/H*)(-1) similar to 10(-2) - 10(-1) and therefore can be used to constrain the dark and QCD phase transitions.
学科主题	Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/27601]
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.Univ Sci & Technol China, Sch Astron & Space Sci, Hefei 230026, Anhui, Peoples R China 2.Monash Univ, Sch Phys & Astron, Clayton, Vic 3800, Australia 3.Zhu, Xingjiang; Goncharov, Boris; Reardon, Daniel J.; Shannon, Ryan M.] OzGrav ARC Ctr Excellence Gravitat Wave Discovery, Hawthorn, Vic 3122, Australia 4.Beijing Normal Univ, Inst Nat Sci, Zhuhai 519087, Peoples R China 5.Curtin Univ, Int Ctr Radio Astron Res, Bentley, WA 6102, Australia 6.Univ Western Sydney, Locked Bag 1797, Penrith, NSW 1797, Australia 7.Hobbs, George; Howard, Eric; Manchester, Richard N.] CSIRO Astron & Space Sci, POB 76, Epping, NSW 1710, Australia 8.Macquarie Univ, Dept Phys & Astron, Sydney, NSW 2109, Australia 9.Chinese Acad Sci, Beijing 100049, Peoples R China 10.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Xue, Xiao,Bian, Ligong,Shu, Jing,et al. Constraining Cosmological Phase Transitions with the Parkes Pulsar Timing Array[J]. PHYSICAL REVIEW LETTERS,2021,127(25):251303.
APA	Xue, Xiao.,Bian, Ligong.,Shu, Jing.,Yuan, Qiang.,Zhu, Xingjiang.,...&Wang, Jingbo.(2021).Constraining Cosmological Phase Transitions with the Parkes Pulsar Timing Array.PHYSICAL REVIEW LETTERS,127(25),251303.
MLA	Xue, Xiao,et al."Constraining Cosmological Phase Transitions with the Parkes Pulsar Timing Array".PHYSICAL REVIEW LETTERS 127.25(2021):251303.