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The International Pulsar Timing Array: First data release
Verbiest, J. P. W.1,2; Lentati, L.3; Hobbs, G.4; van Haasteren, R.5; Demorest, P. B.6; Janssen, G. H.7; Wang, J. -B.8; Desvignes, G.2; Caballero, R. N.2; Keith, M. J.9; Champion, D. J.2; Arzoumanian, Z.10,11; Babak, S.12; Bassa, C. G.7; Bhat, N. D. R.13; Brazier, A.14,15; Brem, P.12; Burgay, M.16; Burke-Spolaor, S.6; Chamberlin, S. J.17; Chatterjee, S.15,18; Christy, B.19; Cognard, I.20,21; Cordes, J. M.18; Dai, S.4,22; Dolch, T.15,18,23; Ellis, J. A.5; Ferdman, R. D.24; Fonseca, E.25; Gair, J. R.26; Garver-Daniels, N. E.27; Gentile, P.27; Gonzalez, M. E.28; Graikou, E.2; Guillemot, L.20,21; Hessels, J. W. T.7,29; Jones, G.30; Karuppusamy, R.2; Kerr, M.4; Kramer, M.2,9; Lam, M. T.18; Lasky, P. D.31; Lassus, A.2; Lazarus, P.2; Lazio, T. J. W.5; Lee, K. J.32; Levin, L.9,27; Liu, K.2; Lynch, R. S.33; Lyne, A. G.9; Mckee, J.9; McLaughlin, M. A.27; McWilliams, S. T.27; Madison, D. R.34; Manchester, R. N.4; Mingarelli, C. M. F.2,35; Nice, D. J.36; Oslowski, S.1,2; Palliyaguru, N. T.37; Pennucci, T. T.38; Perera, B. B. P.9; Perrodin, D.16; Possenti, A.16; Petiteau, A.39; Ransom, S. M.34; Reardon, D.4,31; Rosado, P. A.40; Sanidas, S. A.29; Sesana, A.41; Shaifullah, G.1,2; Shannon, R. M.4,13; Siemens, X.42; Simon, J.42; Smits, R.7; Spiewak, R.42; Stairs, I. H.25; Stappers, B. W.9; Stinebring, D. R.43; Stovall, K.44; Swiggum, J. K.27; Taylor, S. R.5; Theureau, G.20,21,45; Tiburzi, C.1,2; Toomey, L.4; Vallisneri, M.5; van Straten, W.40; Vecchio, A.41; Wang, Y.46; Wen, L.47; You, X. P.48; Zhu, W. W.2; Zhu, X. -J.47
Contribution Rank8

The highly stable spin of neutron stars can be exploited for a variety of (astro)physical investigations. In particular, arrays of pulsars with rotational periods of the order of milliseconds can be used to detect correlated signals such as those caused by gravitational waves. Three such 'pulsar timing arrays' (PTAs) have been set up around the world over the past decades and collectively form the 'International' PTA (IPTA). In this paper, we describe the first joint analysis of the data from the three regional PTAs, i.e. of the first IPTA data set. We describe the available PTA data, the approach presently followed for its combination and suggest improvements for future PTA research. Particular attention is paid to subtle details (such as underestimation of measurement uncertainty and long-period noise) that have often been ignored but which become important in this unprecedentedly large and inhomogeneous data set. We identify and describe in detail several factors that complicate IPTA research and provide recommendations for future pulsar timing efforts. The first IPTA data release presented here (and available online) is used to demonstrate the IPTA's potential of improving upon gravitational-wave limits placed by individual PTAs by a factor of similar to 2 and provides a 2 sigma limit on the dimensionless amplitude of a stochastic gravitational-wave background of 1.7 x 10(-15) at a frequency of 1 yr(-1). This is 1.7 times less constraining than the limit placed by Shannon et al., due mostly to the more recent, high-quality data they used.

Correspondent Emailverbiest@physik.uni-bielefeld.de
KeywordMethods: Data Analysis Pulsars: General
WOS HeadingsScience & Technology ; Physical Sciences
Indexed BySCI
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000374569600010
Funding OrganizationNSF(AST-1100968) ; Commonwealth Government ; STFC ; CNRS/INSU, France ; Region Centre ; NWO ; ERC(227947) ; National Science Foundation (NSF) PIRE program(0968296) ; NSF Physics Frontier Center(1430284) ; NASA Einstein Fellowship(PF3-140116) ; National Aeronautics and Space Administration ; NSFC(11403086 ; West Light Foundation CAS(XBBS201322) ; International Max Planck Research School Bonn/Cologne ; Bonn-Cologne Graduate School ; Curtin Research Fellowship ; NSF PIRE programme(0968296) ; NASA through Einstein Fellowship(PF4-150120) ; Royal Society ; NSERC PDF ; NWO Vidi fellowship ; ERC Starting Grant 'DRAGNET'(337062) ; Australian Research Council(DP140102578) ; IMPRS Bonn/Cologne ; National Basic Research Program of China, 973 Program(2015CB857101) ; European Research Council(610058) ; Marie-Curie International Outgoing Fellowship within the European Union Seventh Framework Programme ; Alexander von Humboldt Foundation ; University Research Fellowship of the Royal Society ; Wisconsin Space Grant Consortium ; NSERC ; Canadian Institute for Advanced Research ; JPL RTD programme ; National Science Foundation of China (NSFC)(11503007) ; Australian Research Council ; NNSF of China(U1231120) ; FRFCU(XDJK2015B 012) ; 11373011)
Citation statistics
Cited Times:218[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorVerbiest, J. P. W.
Affiliation1.Univ Bielefeld, Fak Phys, Postfach 100131, D-33501 Bielefeld, Germany
2.Max Planck Inst Radioastron, Hugel 69, D-53121 Bonn, Germany
3.Univ Cambridge, Cavendish Lab, Astrophys Grp, JJ Thomson Ave, Cambridge CB3 0HE, England
4.Australia Telescope Natl Facil, CSIRO Astron & Space Sci, POB 76, Epping, NSW 1710, Australia
5.CALTECH, Jet Prop Lab, 4800 Oak Grove Dr,M-S 67-201, Pasadena, CA 91109 USA
6.Natl Radio Astron Observ, POB O, Socorro, NM 87801 USA
7.Netherlands Inst Radio Astron, ASTRON, Postbus 2, NL-7990 AA Dwingeloo, Netherlands
8.Chinese Acad Sci, Xinjiang Astron Observ, 150 Sci 1-St, Urumqi 830011, Xinjiang, Peoples R China
9.Univ Manchester, Sch Phys & Astron, Jodrell Bank Ctr Astrophys, Manchester M13 9PL, Lancs, England
10.NASA, Goddard Space Flight Ctr, USRA, Ctr Res & Explorat Space Sci & Technol, Code 662, Greenbelt, MD 20771 USA
11.NASA, Goddard Space Flight Ctr, Xray Astrophys Lab, Code 662, Greenbelt, MD 20771 USA
12.MPI Gravitat Phys Albert Einstein Inst, D-14476 Golm, Germany
13.Curtin Univ, Int Ctr Radio Astron Res, Bentley, WA 6102, Australia
14.Cornell Univ, Cornell Ctr Adv Comp, Ithaca, NY 14853 USA
15.Cornell Univ, Cornell Ctr Astrophys & Planetary Sci, Ithaca, NY 14853 USA
16.INAF Osservatorio Astron Cagliari, Via Sci 5, I-09047 Selargius, CA, Italy
17.Penn State Univ, Dept Phys, 104 Davey Lab, University Pk, PA 16802 USA
18.Cornell Univ, Dept Astron, Ithaca, NY 14853 USA
19.Notre Dame Maryland Univ, 4701 N Charles St, Baltimore, MD 21210 USA
20.Univ Orleans, CNRS, Lab Phys & Chim Environm & Espace LPC2E, F-45071 Orleans, France
21.CNRS INSU, Observ Paris, Stn Radioastron Nancy, F-18330 Nancy, France
22.Peking Univ, Sch Phys, Dept Astron, Beijing 100871, Peoples R China
23.Hillsdale Coll, Dept Phys, 33 E Coll St, Hillsdale, MI 49242 USA
24.McGill Univ, Dept Phys, Rutherford Phys Bldg,3600 Univ St, Montreal, PQ H3A 2T8, Canada
25.Univ British Columbia, Dept Phys & Astron, 6224 Agr Rd, Vancouver, BC V6T 1Z1, Canada
26.Univ Edinburgh, Sch Math, Kings Bldg, Edinburgh EH9 3JZ, Midlothian, Scotland
27.W Virginia Univ, Dept Phys & Astron, Morgantown, WV 26506 USA
28.Vancouver Coastal Hlth, Dept Nucl Med, 899 W 12th Ae, Vancouver, BC V5Z 1M9, Canada
29.Univ Amsterdam, Anton Pannekoek Inst Astron, Sci Pk 904, NL-1098 XH Amsterdam, Netherlands
30.Columbia Univ, Dept Phys, 538 W 120th St, New York, NY 10027 USA
31.Monash Univ, Sch Phys & Astron, Monash Ctr Astrophys MoCA, Clayton, Vic 3800, Australia
32.Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China
33.Natl Radio Astron Observ, POB 2, Green Bank, WV 24944 USA
34.Natl Radio Astron Observ, 520 Edgemont Rd, Charlottesville, VA 22903 USA
35.CALTECH, TAPIR, MC 350-17, Pasadena, CA 91125 USA
36.Lafayette Coll, Dept Phys, Easton, PA 18042 USA
37.Texas Tech Univ, Dept Phys, Box 41051, Lubbock, TX 79409 USA
38.Univ Virginia, Dept Astron, POB 400325, Charlottesville, VA 22904 USA
39.Univ Paris Diderot Paris7, APC, UFR Phys, Batiment Condorcet, Paris 13, France
40.Swinburne Univ Technol, Ctr Astrophys & Supercomp, POB 218, Hawthorn, Vic 3122, Australia
41.Univ Birmingham, Sch Phys & Astron, Birmingham B15 2TT, W Midlands, England
42.Univ Wisconsin, Dept Phys, Ctr Gravitat Cosmol & Astrophys, POB 413, Milwaukee, WI 53201 USA
43.Oberlin Coll, Phys & Astron Dept, Oberlin, OH 44074 USA
44.Univ New Mexico, Dept Phys & Astron, Albuquerque, NM 87131 USA
45.Univ Paris Diderot, CNRS INSU, Observ Paris, Lab Univ & Theories LUTh, 5 Pl Jules Janssen, F-92190 Meudon, France
46.Huazhong Univ Sci & Technol, Sch Phys, Wuhan 430074, Hunan, Peoples R China
47.Univ Western Australia, Sch Phys, 35 Stirling Hwy, Nedlands, WA 6009, Australia
48.Southwest Univ, Sch Phys Sci & Technol, Chongqing 400715, Peoples R China
Recommended Citation
GB/T 7714
Verbiest, J. P. W.,Lentati, L.,Hobbs, G.,et al. The International Pulsar Timing Array: First data release[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2016,458(2):1267-1288.
APA Verbiest, J. P. W..,Lentati, L..,Hobbs, G..,van Haasteren, R..,Demorest, P. B..,...&Zhu, X. -J..(2016).The International Pulsar Timing Array: First data release.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,458(2),1267-1288.
MLA Verbiest, J. P. W.,et al."The International Pulsar Timing Array: First data release".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 458.2(2016):1267-1288.
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