The noise properties of 42 millisecond pulsars from the European Pulsar Timing Array and their impact on gravitational-wave searches
Caballero, R. N.1; Lee, K. J.1,2; Lentati, L.3; Desvignes, G.1; Champion, D. J.1; Verbiest, J. P. W.1,4; Janssen, G. H.5,6; Stappers, B. W.6; Kramer, M.1,6; Lazarus, P.1; Possenti, A.7; Tiburzi, C.1,4; Perrodin, D.7; Oslowski, S.1,4; Babak, S.8; Bassa, C. G.5; Brem, P.8; Burgay, M.7; Cognard, I.9,10; Gair, J. R.11; Graikou, E.1; Guillemot, L.9,10; Hessels, J. W. T.5,12; Karuppusamy, R.1; Lassus, A.1; Liu, K.1; McKee, J.6; Mingarelli, C. M. F.1,13; Petiteau, A.14; Purver, M. B.6; Rosado, P. A.15,16; Sanidas, S.6,12; Sesana, A.8,17; Shaifullah, G.1,4; Smits, R.5; Taylor, S. R.; Theureau, G.9,10; van Haasteren, R.; Vecchio, A.17; Caballero, RN
Source PublicationMonthly Notices of the Royal Astronomical Society
AbstractThe 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.
KeywordGravitational Waves Methods: Data Analysis Pulsars: General
Indexed BySCI
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000373586000075
Project Number2015CB857101 ; 11373011 ; 337062 ; PF3-140116
Funding Organization'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
Citation statistics
Cited Times:23[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorCaballero, RN
Affiliation1.Max-Planck-Institut fur Radioastronomie, Auf dem Hugel 69, D-53121 Bonn, Germany
2.Kavli institute for Astronomy and Astrophysics, Peking University, Beijing 100871, People’s Republic of China
3.Astrophysics Group, Cavendish Laboratory, JJ Thomson Avenue, Cambridge CB3 0HE, 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.Jodrell Bank Centre for Astrophysics, School of Physics and Astronomy,The University of Manchester, Manchester M13 9PL, UK
6.INAF - Osservatorio Astronomico di Cagliari, via della Scienza 5, I-09047 Selargius (CA), Italy
7.Max-Planck-Institut fur Gravitationsphysik, Albert Einstein Institut, Am Muhlenberg 1, D-14476 Golm, Germany
8.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
9.School of Mathematics, University of Edinburgh, King’s Buildings, Edinburgh EH9 3JZ, UK
10.Anton Pannekoek Institute for Astronomy, University of Amsterdam, Science Park 904, NL-1098 XH Amsterdam, the Netherlands
11.TAPIR, California Institute of Technology MC 350-17, Pasadena, CA 91125, USA
12.Universit´e Paris-Diderot-Paris7 APC - UFR de Physique, Batiment Condorcet,10 rue Alice Domont et L´eonie Duquet F-75205 Paris Cedex 13,France
13.Centre for Astrophysics&Supercomputing, SwinburneUniversity of Technology,PO Box 218, Hawthorn, VIC 3122, Australia
14.Max-Planck-Institut fur Gravitationsphysik, Albert-Einstein-Institut,Callinstraße 38, D-30167 Hanover, Germany
15.School of Physics and Astronomy, The University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
16.Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91106, USA
17.Laboratoire Univers et Th´eories LUTh, Observatoire de Paris, CNRS/INSU, Universit´e Paris Diderot, 5 place Jules Janssen, F-92190 Meudon, France
Recommended Citation
GB/T 7714
Caballero, R. N.,Lee, K. J.,Lentati, L.,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 Caballero, R. N..,Lee, K. J..,Lentati, L..,Desvignes, G..,Champion, D. J..,...&Caballero, RN.(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 Caballero, R. N.,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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