The Parkes pulsar timing array second data release: timing analysis
文献类型：期刊论文
| 作者 | Reardon, D. J.13,14; Shannon, R. M.13,14; Cameron, A. D.13,14; Goncharov, B.12,13; Hobbs, G. B.11; Middleton, H.10,13,14; Shamohammadi, M.14; Thyagarajan, N.8,9; Bailes, M.13,14; Bhat, N. D. R.7 |
| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
 |
| 出版日期 | 2021-10-01 |
| 卷号 | 507期号:2页码:2137-2153 |
| ISSN号 | 0035-8711 |
| 关键词 | astrometry parallaxes stars: neutron pulsars: general |
| DOI | 10.1093/mnras/stab1990 |
| 通讯作者 | Reardon, D. J.(dreardon@swin.edu.au) |
| 英文摘要 | The main goal of pulsar timing array experiments is to detect correlated signals such as nanohertz-frequency gravitational waves. Pulsar timing data collected in dense monitoring campaigns can also be used to study the stars themselves, their binary companions, and the intervening ionized interstellar medium. Timing observations are extraordinarily sensitive to changes in path-length between the pulsar and the Earth, enabling precise measurements of the pulsar positions, distances and velocities, and the shapes of their orbits. Here we present a timing analysis of 25 pulsars observed as part of the Parkes Pulsar Timing Array (PPTA) project over time spans of up to 24yr. The data are from the second data release of the PPTA, which we have extended by including legacy data. We make the first detection of Shapiro delay in four Southern pulsars (PSRs J1017-7156, J1125-6014, J1545-4550, and J1732-5049), and of parallax in six pulsars. The prominent Shapiro delay of PSR J1125-6014 implies a neutron star mass of M-p = 1.5 +/- 0.2 M-circle dot (68 per cent credibility interval). Measurements of both Shapiro delay and relativistic periastron advance in PSR J1600-3053 yield a large but uncertain pulsar mass of M-circle dot 2.06(-0.41)+(0.44)(68 per cent credibility interval). We measure the distance to PSR J1909-3744 to a precision of 10lyr, indicating that for gravitational wave periods over a decade, the pulsar provides a coherent baseline for pulsar timing array experiments. |
| WOS关键词 | GENERAL-RELATIVITY ; INTERSTELLAR SCINTILLATION ; ORBITAL VARIABILITY ; GRAVITATIONAL-WAVES ; MILLISECOND PULSAR ; BINARY PULSARS ; PROPER MOTION ; SPIN NOISE ; TESTS ; MASS |
| 资助项目 | Commonwealth Government ; Australian Government through the Australian Research Council (ARC)[CE170100004] ; Australian Government through the Australian Research Council (ARC)[FL150100148] ; Astronomy National Collaborative Research Infrastructure Strategy (NCRIS) allocation by the Australian Government ; NASA ; Australian Research Council Future Fellowship[FT190100155] ; Australian Research Council - Australian Government[DE210101738] ; National Natural Science Foundation of China[12041304] ; National SKA Program of China[2020SKA0120100] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | OXFORD UNIV PRESS |
| WOS记录号 | WOS:000697380800039 |
| 资助机构 | Commonwealth Government ; Australian Government through the Australian Research Council (ARC) ; Astronomy National Collaborative Research Infrastructure Strategy (NCRIS) allocation by the Australian Government ; NASA ; Australian Research Council Future Fellowship ; Australian Research Council - Australian Government ; National Natural Science Foundation of China ; National SKA Program of China |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/4284]  |
| 专题 | 脉冲星研究团组 |
| 通讯作者 | Reardon, D. J. |
| 作者单位 | 1.Beijing Normal Univ Zhuhai, Adv Inst Nat Sci, Zhuhai 519087, Peoples R China 2.Chinese Acad Sci, Xinjiang Astron Observ, 150 Sci 1 St, Urumqi 830011, Xinjiang, Peoples R China 3.Univ Manchester, Jodrell Bank Ctr Astrophys, Dept Phys & Astron, Manchester M13 9PL, Lancs, England 4.CSIRO Sci Comp, Australian Technol Pk,Locked Bag 9013, Alexandria, NSW 1435, Australia 5.Naval Res Lab, Space Sci Div, Washington, DC 20375 USA 6.Western Sydney Univ, Sch Sci, Locked Bag 1797, Penrith, NSW 2751, Australia 7.Curtin Univ, Int Ctr Radio Astron Res, Bentley, WA 6102, Australia 8.CSIRO Astron & Space Sci CASS, POB 1130, Bentley, WA 6102, Australia 9.Natl Radio Astron Observ, Socorro, NM 87801 USA 10.Univ Melbourne, Sch Phys, Parkville, Vic 3010, Australia |
| 推荐引用方式 GB/T 7714 | Reardon, D. J.,Shannon, R. M.,Cameron, A. D.,et al. The Parkes pulsar timing array second data release: timing analysis[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2021,507(2):2137-2153. |
| APA | Reardon, D. J..,Shannon, R. M..,Cameron, A. D..,Goncharov, B..,Hobbs, G. B..,...&Zhu, X. J..(2021).The Parkes pulsar timing array second data release: timing analysis.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,507(2),2137-2153. |
| MLA | Reardon, D. J.,et al."The Parkes pulsar timing array second data release: timing analysis".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 507.2(2021):2137-2153. |
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