A pulsar-based time-scale from the International Pulsar Timing Array

doi:10.1093/mnras/stz3071

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	A pulsar-based time-scale from the International Pulsar Timing Array
	Hobbs, G.1; Guo, L.2; Caballero, R. N.3,4; Coles, W.5; Lee, K. J.3; Manchester, R. N.1; Reardon, D. J.6; Matsakis, D.7; Tong, M. L.8; Arzoumanian, Z.9
刊名	MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
	2020-02-01
卷号	491 期号:4 页码:5951-5965
关键词	time pulsars: general
ISSN号	0035-8711
DOI	10.1093/mnras/stz3071
英文摘要	We have constructed a new time-scale, TT(IPTA16), based on observations of radio pulsars presented in the first data release from the International Pulsar Timing Array (IPTA). We used two analysis techniques with independent estimates of the noise models for the pulsar observations and different algorithms for obtaining the pulsar time-scale. The two analyses agree within the estimated uncertainties and both agree with TT(BIPM17), a post-corrected time-scale produced by the Bureau International des Poids et Mesures (BIPM). We show that both methods could detect significant errors in TT(BIPM17) if they were present. We estimate the stability of the atomic clocks from which TT(BIPM17) is derived using observations of four rubidium fountain clocks at the US Naval Observatory. Comparing the power spectrum of TT(IPTA16) with that of these fountain clocks suggests that pulsar-based time-scales are unlikely to contribute to the stability of the best time-scales over the next decade, but they will remain a valuable independent check on atomic time-scales. We also find that the stability of the pulsar-based time-scale is likely to be limited by our knowledge of solar-system dynamics, and that errors in TT(BIPM17) will not be a limiting factor for the primary goal of the IPTA, which is to search for the signatures of nano-Hertz gravitational waves.
资助项目	Commonwealth Government ; Netherlands Foundation for Scientific Research NWO ; ERC Advanced Grant `LEAP'[227947] ; STFC ; 'Programme National de Cosmologie et Galaxies (PNCG)' programme of CNRS/INSU, France ; 'Gravitation, References, Astronomie, M'etrologie (GRAM)' programme of CNRS/INSU, France ; National Natural Science Foundation of China[11873076] ; Simons Foundation ; National Science Foundation (NSF) PIRE program[0968296] ; NSF Physics Frontiers Center award[1430824] ; National Basic Research Program of China, 973 Program[2015CB857101] ; NSFC[U15311243] ; NSFC[11690024] ; NSFC[11503007] ; NSFC[91636111] ; NSFC[11690021] ; MPG ; National Natural Science Foundation of China (NSFC)[U1431117] ; National Natural Science Foundation of China (NSFC)[11010250] ; IMPRS Bonn/Cologne ; Bonn-Cologne Graduate School (BCGS) ; NSF EPSCoR award[1458952] ; European Research Council[610058] ; NASA ; NSF[AST-1100968] ; [XDB23010200]
WOS关键词	GRAVITATIONAL-WAVES ; MILLISECOND PULSAR ; PRECISION ; PACKAGE ; TEMPO2 ; LIMITS ; DISPERSION ; NOISE ; MODEL
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	OXFORD UNIV PRESS
WOS记录号	WOS:000512310600104
资助机构	Commonwealth Government ; Commonwealth Government ; Netherlands Foundation for Scientific Research NWO ; Netherlands Foundation for Scientific Research NWO ; ERC Advanced Grant `LEAP' ; ERC Advanced Grant `LEAP' ; STFC ; STFC ; 'Programme National de Cosmologie et Galaxies (PNCG)' programme of CNRS/INSU, France ; 'Programme National de Cosmologie et Galaxies (PNCG)' programme of CNRS/INSU, France ; 'Gravitation, References, Astronomie, M'etrologie (GRAM)' programme of CNRS/INSU, France ; 'Gravitation, References, Astronomie, M'etrologie (GRAM)' programme of CNRS/INSU, France ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Simons Foundation ; Simons Foundation ; National Science Foundation (NSF) PIRE program ; National Science Foundation (NSF) PIRE program ; NSF Physics Frontiers Center award ; NSF Physics Frontiers Center award ; National Basic Research Program of China, 973 Program ; National Basic Research Program of China, 973 Program ; NSFC ; NSFC ; MPG ; MPG ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; IMPRS Bonn/Cologne ; IMPRS Bonn/Cologne ; Bonn-Cologne Graduate School (BCGS) ; Bonn-Cologne Graduate School (BCGS) ; NSF EPSCoR award ; NSF EPSCoR award ; European Research Council ; European Research Council ; NASA ; NASA ; NSF ; NSF ; Commonwealth Government ; Commonwealth Government ; Netherlands Foundation for Scientific Research NWO ; Netherlands Foundation for Scientific Research NWO ; ERC Advanced Grant `LEAP' ; ERC Advanced Grant `LEAP' ; STFC ; STFC ; 'Programme National de Cosmologie et Galaxies (PNCG)' programme of CNRS/INSU, France ; 'Programme National de Cosmologie et Galaxies (PNCG)' programme of CNRS/INSU, France ; 'Gravitation, References, Astronomie, M'etrologie (GRAM)' programme of CNRS/INSU, France ; 'Gravitation, References, Astronomie, M'etrologie (GRAM)' programme of CNRS/INSU, France ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Simons Foundation ; Simons Foundation ; National Science Foundation (NSF) PIRE program ; National Science Foundation (NSF) PIRE program ; NSF Physics Frontiers Center award ; NSF Physics Frontiers Center award ; National Basic Research Program of China, 973 Program ; National Basic Research Program of China, 973 Program ; NSFC ; NSFC ; MPG ; MPG ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; IMPRS Bonn/Cologne ; IMPRS Bonn/Cologne ; Bonn-Cologne Graduate School (BCGS) ; Bonn-Cologne Graduate School (BCGS) ; NSF EPSCoR award ; NSF EPSCoR award ; European Research Council ; European Research Council ; NASA ; NASA ; NSF ; NSF ; Commonwealth Government ; Commonwealth Government ; Netherlands Foundation for Scientific Research NWO ; Netherlands Foundation for Scientific Research NWO ; ERC Advanced Grant `LEAP' ; ERC Advanced Grant `LEAP' ; STFC ; STFC ; 'Programme National de Cosmologie et Galaxies (PNCG)' programme of CNRS/INSU, France ; 'Programme National de Cosmologie et Galaxies (PNCG)' programme of CNRS/INSU, France ; 'Gravitation, References, Astronomie, M'etrologie (GRAM)' programme of CNRS/INSU, France ; 'Gravitation, References, Astronomie, M'etrologie (GRAM)' programme of CNRS/INSU, France ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Simons Foundation ; Simons Foundation ; National Science Foundation (NSF) PIRE program ; National Science Foundation (NSF) PIRE program ; NSF Physics Frontiers Center award ; NSF Physics Frontiers Center award ; National Basic Research Program of China, 973 Program ; National Basic Research Program of China, 973 Program ; NSFC ; NSFC ; MPG ; MPG ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; IMPRS Bonn/Cologne ; IMPRS Bonn/Cologne ; Bonn-Cologne Graduate School (BCGS) ; Bonn-Cologne Graduate School (BCGS) ; NSF EPSCoR award ; NSF EPSCoR award ; European Research Council ; European Research Council ; NASA ; NASA ; NSF ; NSF ; Commonwealth Government ; Commonwealth Government ; Netherlands Foundation for Scientific Research NWO ; Netherlands Foundation for Scientific Research NWO ; ERC Advanced Grant `LEAP' ; ERC Advanced Grant `LEAP' ; STFC ; STFC ; 'Programme National de Cosmologie et Galaxies (PNCG)' programme of CNRS/INSU, France ; 'Programme National de Cosmologie et Galaxies (PNCG)' programme of CNRS/INSU, France ; 'Gravitation, References, Astronomie, M'etrologie (GRAM)' programme of CNRS/INSU, France ; 'Gravitation, References, Astronomie, M'etrologie (GRAM)' programme of CNRS/INSU, France ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Simons Foundation ; Simons Foundation ; National Science Foundation (NSF) PIRE program ; National Science Foundation (NSF) PIRE program ; NSF Physics Frontiers Center award ; NSF Physics Frontiers Center award ; National Basic Research Program of China, 973 Program ; National Basic Research Program of China, 973 Program ; NSFC ; NSFC ; MPG ; MPG ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; IMPRS Bonn/Cologne ; IMPRS Bonn/Cologne ; Bonn-Cologne Graduate School (BCGS) ; Bonn-Cologne Graduate School (BCGS) ; NSF EPSCoR award ; NSF EPSCoR award ; European Research Council ; European Research Council ; NASA ; NASA ; NSF ; NSF
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/54089]
专题	中国科学院国家天文台
通讯作者	Hobbs, G.; Manchester, R. N.; Shannon, R. M.
作者单位	1.CSIRO Astron & Space Sci, Australia Telescope Natl Facil, Box 76, Epping, NSW 1710, Australia 2.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China 3.Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China 4.Max Planck Inst Radioastron, Hugel 69, D-53121 Bonn, Germany 5.Univ Calif San Diego, Dept Elect & Comp Engn, La Jolla, CA 92093 USA 6.Swinburne Univ Technol, Ctr Astrophys & Supercomp, POB 218, Hawthorn, Vic 3122, Australia 7.US Naval Observ, Naval Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA 8.Chinese Acad Sci, Natl Time Serv Ctr, Xian 710600, Shaanxi, Peoples R China 9.NASA, Astrophys Sci Div, Goddard Space Flight Ctr Green Belt, Greenbelt, MD 20771 USA 10.ASTRON, Netherlands Inst Radio Astron, Oude Hoogeveensedijk 4, NL-7991 PD Dwingeloo, Netherlands
推荐引用方式 GB/T 7714	Hobbs, G.,Guo, L.,Caballero, R. N.,et al. A pulsar-based time-scale from the International Pulsar Timing Array[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2020,491(4):5951-5965.
APA	Hobbs, G..,Guo, L..,Caballero, R. N..,Coles, W..,Lee, K. J..,...&Zhu, X. J..(2020).A pulsar-based time-scale from the International Pulsar Timing Array.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,491(4),5951-5965.
MLA	Hobbs, G.,et al."A pulsar-based time-scale from the International Pulsar Timing Array".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 491.4(2020):5951-5965.