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The noise properties of 42 millisecond pulsars from the European Pulsar Timing Array and their impact on gravitational-wave searches
文献类型：期刊论文
| 作者 | Sesana, A.2,9; Perrodin, D.8; Oslowski, S.4,7; Babak, S.9; Bassa, C. G.3; Brem, P.9; Burgay, M.8; Cognard, I.10,11; Gair, J. R.12; Graikou, E.7 |
| 刊名 | Monthly Notices of the Royal Astronomical Society
 |
| 出版日期 | 2016-04-21 |
| 卷号 | 457期号:4页码:4421-4440 |
| ISSN号 | 0035-8711 |
| 关键词 | Gravitational Waves Methods: Data Analysis Pulsars: General |
| DOI | 10.1093/mnras/stw179 |
| 文献子类 | Article |
| 英文摘要 | The sensitivity of Pulsar Timing Arrays to gravitational waves (GWs) depends on the noise present in the individual pulsar timing data. Noise may be either intrinsic or extrinsic to the pulsar. Intrinsic sources of noise will include rotational instabilities, for example. Extrinsic sources of noise include contributions from physical processes which are not sufficiently well modelled, for example, dispersion and scattering effects, analysis errors and instrumental instabilities. We present the results from a noise analysis for 42 millisecond pulsars (MSPs) observed with the European Pulsar Timing Array. For characterizing the low-frequency, stochastic and achromatic noise component, or 'timing noise', we employ two methods, based on Bayesian and frequentist statistics. For 25 MSPs, we achieve statistically significant measurements of their timing noise parameters and find that the two methods give consistent results. For the remaining 17 MSPs, we place upper limits on the timing noise amplitude at the 95 per cent confidence level. We additionally place an upper limit on the contribution to the pulsar noise budget from errors in the reference terrestrial time standards (below 1 per cent), and we find evidence for a noise component which is present only in the data of one of the four used telescopes. Finally, we estimate that the timing noise of individual pulsars reduces the sensitivity of this data set to an isotropic, stochastic GW background by a factor of > 9.1 and by a factor of > 2.3 for continuous GWs from resolvable, inspiralling supermassive black hole binaries with circular orbits. |
| WOS关键词 | RADIO ASTRONOMICAL POLARIMETRY ; BLACK-HOLE BINARIES ; RELATIVISTIC GRAVITY ; COMPACT BINARIES ; SINGLE-PULSE ; PRECISION ; RADIATION ; LIMITS ; VARIABILITY ; DISPERSION |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 项目编号 | 2015CB857101 ; 11373011 ; 337062 ; PF3-140116 |
| WOS记录号 | WOS:000373586000075 |
| 资助机构 | 'Programme National de Cosmologie and Galaxies' (PNCG) of CNRS/INSU, France ; STFC in the UK ; Netherlands Foundation for Scientific Research NWO ; International Max Planck Research School Bonn/Cologne ; Bonn-Cologne Graduate School ; National Basic Research Program of China, 973 Program ; NSFC ; Alexander von Humboldt Foundation ; NWO ; European Research Council under the European Union / ERC ; European Community ; Royal Society ; NASA ; NASA |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/1625]  |
| 专题 | 新疆天文台_110米口径全可动射电望远镜（SmART）_110米大口径全可动射电望远镜关键技术研究（973项目）_课题1：大样本射电天体的观测和前沿问题研究 |
| 通讯作者 | Caballero, RN |
| 作者单位 | 1.Astrophysics Group, Cavendish Laboratory, JJ Thomson Avenue, Cambridge CB3 0HE, UK 2.Laboratoire Univers et Th´eories LUTh, Observatoire de Paris, CNRS/INSU, Universit´e Paris Diderot, 5 place Jules Janssen, F-92190 Meudon, France 3.Jodrell Bank Centre for Astrophysics, School of Physics and Astronomy,The University of Manchester, Manchester M13 9PL, UK 4.Fakultat fur Physik, Universit¨at Bielefeld, Postfach 100131, D-33501 Bielefeld,Germany 5ASTRON, the Netherlands Institute for Radio Astronomy, Postbus 2, NL-7990 AA Dwingeloo, the Netherlands 5.INAF - Osservatorio Astronomico di Cagliari, via della Scienza 5, I-09047 Selargius (CA), Italy 6.Kavli institute for Astronomy and Astrophysics, Peking University, Beijing 100871, People’s Republic of China 7.Max-Planck-Institut fur Radioastronomie, Auf dem Hugel 69, D-53121 Bonn, Germany 8.Max-Planck-Institut fur Gravitationsphysik, Albert Einstein Institut, Am Muhlenberg 1, D-14476 Golm, Germany 9.Laboratoire de Physique et Chimie de l’Environnement et de l’Espace LPC2E CNRS-Universit´e d’Orl´eans, F-45071 Orl´eans, France 10Station de radioastronomie de Nanc¸ay, Observatoire de Paris,CNRS/INSU F-18330 Nanc¸ay, France 10.School of Mathematics, University of Edinburgh, King’s Buildings, Edinburgh EH9 3JZ, UK |
| 推荐引用方式 GB/T 7714 | Sesana, A.,Perrodin, D.,Oslowski, S.,et al. The noise properties of 42 millisecond pulsars from the European Pulsar Timing Array and their impact on gravitational-wave searches[J]. Monthly Notices of the Royal Astronomical Society,2016,457(4):4421-4440. |
| APA | Sesana, A..,Perrodin, D..,Oslowski, S..,Babak, S..,Bassa, C. G..,...&Tiburzi, C..(2016).The noise properties of 42 millisecond pulsars from the European Pulsar Timing Array and their impact on gravitational-wave searches.Monthly Notices of the Royal Astronomical Society,457(4),4421-4440. |
| MLA | Sesana, A.,et al."The noise properties of 42 millisecond pulsars from the European Pulsar Timing Array and their impact on gravitational-wave searches".Monthly Notices of the Royal Astronomical Society 457.4(2016):4421-4440. |
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来源：新疆天文台
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