Imprints of relic gravitational waves on pulsar timing

doi:10.1088/1674-4527/16/3/049

	Imprints of relic gravitational waves on pulsar timing
	Tong, Ming-Lei 1,2,3; Ding, Yong-Heng 1,4; Zhao, Cheng-Shi 1,2; Gao, Feng 1,4; Yan, Bao-Rong 1,5; Yang, Ting-Gao 1,2; Gao, Yu-Ping 1,2
刊名	RESEARCH IN ASTRONOMY AND ASTROPHYSICS
	2016-03-01
卷号	16 期号:3 页码:10
关键词	gravitational waves: general pulsars: general inflation
ISSN号	1674-4527
DOI	10.1088/1674-4527/16/3/049
英文摘要	Relic gravitational waves (RGWs), a background originating during inflation, would leave imprints on pulsar timing residuals. This makes RGWs an important source for detection of RGWs using the method of pulsar tinting. In this paper, we discuss the effects of RGWs on single pulsar timing, and quantitatively analyze the timing residuals caused by RGWs with different model parameters. In principle, if the RGWs are strong enough today, they can be detected by timing a single millisecond pulsar with high precision after the intrinsic red noises in pulsar timing residuals are understood, even though simultaneously observing multiple millisecond pulsars is a more powerful technique for extracting gravitational wave signals We correct the normalization of RGWs using observations of the cosmic microwave background (CMB). which leads to the amplitudes of RGWs being reduced by two orders of magnitude or so compared to our previous works. We obtained new constraints on RGWs using recent observations from the Parkes Pulsar Timing Array, employing the tensor-to-scalar ratio r = 0.2 due to the tensor-type polarization observations of CMB by BICEP2 as a reference value, even though its reliability has been brought into question. Moreover, the constraints on RGWs from CMB and Big Bang nucleosynthesis will also be discussed for comparison.
资助项目	National Natural Science Foundation of China[11103024] ; National Natural Science Foundation of China[11373028] ; National Natural Science Foundation of China[11403030] ; Science and Technology Research Development Program of Shaanxi Province ; CAS "Light of West China" Program ; Open Project of Key Laboratory for Research in Galaxies and Cosmology, Chinese Academy of Sciences[14010205]
WOS关键词	PROBE WMAP OBSERVATIONS ; ACCELERATING UNIVERSE ; MILLISECOND PULSARS ; UPPER LIMITS ; POLARIZATION ; EVOLUTION ; RADIATION ; DETECTOR
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES
WOS记录号	WOS:000371883400013
资助机构	National Natural Science Foundation of China ; National Natural Science Foundation of China ; Science and Technology Research Development Program of Shaanxi Province ; Science and Technology Research Development Program of Shaanxi Province ; CAS "Light of West China" Program ; CAS "Light of West China" Program ; Open Project of Key Laboratory for Research in Galaxies and Cosmology, Chinese Academy of Sciences ; Open Project of Key Laboratory for Research in Galaxies and Cosmology, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Science and Technology Research Development Program of Shaanxi Province ; Science and Technology Research Development Program of Shaanxi Province ; CAS "Light of West China" Program ; CAS "Light of West China" Program ; Open Project of Key Laboratory for Research in Galaxies and Cosmology, Chinese Academy of Sciences ; Open Project of Key Laboratory for Research in Galaxies and Cosmology, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Science and Technology Research Development Program of Shaanxi Province ; Science and Technology Research Development Program of Shaanxi Province ; CAS "Light of West China" Program ; CAS "Light of West China" Program ; Open Project of Key Laboratory for Research in Galaxies and Cosmology, Chinese Academy of Sciences ; Open Project of Key Laboratory for Research in Galaxies and Cosmology, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Science and Technology Research Development Program of Shaanxi Province ; Science and Technology Research Development Program of Shaanxi Province ; CAS "Light of West China" Program ; CAS "Light of West China" Program ; Open Project of Key Laboratory for Research in Galaxies and Cosmology, Chinese Academy of Sciences ; Open Project of Key Laboratory for Research in Galaxies and Cosmology, Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://210.72.145.45/handle/361003/11146]
专题	中国科学院国家授时中心
通讯作者	Tong, Ming-Lei
作者单位	1.Chinese Acad Sci, Natl Time Serv Ctr, Xian 710600, Peoples R China 2.Chinese Acad Sci, Key Lab Time & Frequency Primary Stand, Xian 710600, Peoples R China 3.Chinese Acad Sci, Key Lab Res Galaxies & Cosmol, Hefei 230026, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Chinese Acad Sci, Key Lab Precis Nav & Timing Technol, Xian 710600, Peoples R China
推荐引用方式 GB/T 7714	Tong, Ming-Lei,Ding, Yong-Heng,Zhao, Cheng-Shi,et al. Imprints of relic gravitational waves on pulsar timing[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2016,16(3):10.
APA	Tong, Ming-Lei.,Ding, Yong-Heng.,Zhao, Cheng-Shi.,Gao, Feng.,Yan, Bao-Rong.,...&Gao, Yu-Ping.(2016).Imprints of relic gravitational waves on pulsar timing.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,16(3),10.
MLA	Tong, Ming-Lei,et al."Imprints of relic gravitational waves on pulsar timing".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 16.3(2016):10.