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A pulsar-based time-scale from the International Pulsar Timing Array
文献类型：期刊论文
| 作者 | Hobbs, G.39; Guo, L.38; Caballero, R. N.36,37; Coles, W.35; Lee, K. J.37; Manchester, R. N.39; Reardon, D. J.34; Matsakis, D.33; Tong, M. L.32; Arzoumanian, Z.31 |
| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
 |
| 出版日期 | 2020-02-01 |
| 卷号 | 491期号:4页码:5951-5965 |
| ISSN号 | 0035-8711 |
| 关键词 | time pulsars: general |
| DOI | 10.1093/mnras/stz3071 |
| 产权排序 | 37 |
| 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. |
| WOS关键词 | GRAVITATIONAL-WAVES ; MILLISECOND PULSAR ; PRECISION ; PACKAGE ; TEMPO2 ; LIMITS ; DISPERSION ; NOISE ; MODEL |
| 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 ; Netherlands Foundation for Scientific Research NWO ; ERC Advanced Grant `LEAP' ; 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 ; Simons Foundation ; National Science Foundation (NSF) PIRE program ; NSF Physics Frontiers Center award ; National Basic Research Program of China, 973 Program ; NSFC ; MPG ; National Natural Science Foundation of China (NSFC) ; IMPRS Bonn/Cologne ; Bonn-Cologne Graduate School (BCGS) ; NSF EPSCoR award ; European Research Council ; NASA ; NSF |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/3372]  |
| 专题 | 脉冲星研究团组 研究单元未命名 |
| 通讯作者 | Hobbs, G.; Manchester, R. N.; Shannon, R. M. |
| 作者单位 | 1.Monash Univ, Sch Phys & Astron, Monash Ctr Astrophys MoCA, Clayton, Vic 3800, Australia 2.Huazhong Univ Sci & Technol, Sch Phys, Wuhan 430074, Hubei, Peoples R China 3.Chinese Acad Sci, Xinjiang Astron Observ, 150 Sci 1 St, Urumqi 830011, Xinjiang, Peoples R China 4.Univ Paris Diderot, CNRS INSU, PSL Univ, Lab Univers & Theories LUTh,Observ Paris, 5 Pl Jules Janssen, F-92190 Meudon, France 5.CALTECH, TAPIR, MC 350-17, Pasadena, CA 91125 USA 6.Univ Wisconsin, Dept Phys, Ctr Gravitat Cosmol & Astrophys, POB 413, Milwaukee, WI 53201 USA 7.Univ British Columbia, Dept Phys & Astron, 6224 Agr Rd, Vancouver, BC V6T 1Z1, Canada 8.CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA 9.Australian Res Council, Ctr Excellence Gravitat Wave Discovery, Canberra, ACT, Australia 10.Univ Birmingham, Sch Phys & Astron, Birmingham B15 2TT, W Midlands, England |
| 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. |
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