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The Parkes Pulsar Timing Array Project
Manchester, R. N.1; Hobbs, G.1; Bailes, M.2; Coles, W. A.3; van Straten, W.2; Keith, M. J.1; Shannon, R. M.1; Bhat, N. D. R.2,4; Brown, A.1; Burke-Spolaor, S. G.1,5; Champion, D. J.1,6; Chaudhary, A.1; Edwards, R. T.; Hampson, G.1; Hotan, A. W.1,2; Jameson, A.2; Jenet, F. A.7; Kesteven, M. J.1; Khoo, J.1; Kocz, J.2,8; Maciesiak, K.1,9; Oslowski, S.1,2; Ravi, V.1,10; Reynolds, J. R.1; Sarkissian, J. M.1; Verbiest, J. P. W.2,6; Wen, Z. L.11; Wilson, W. E.1; Yardley, D.1,12; Yan, W. M.13; You, X. P.14
Contribution Rank14
AbstractA 'pulsar timing array' (PTA), in which observations of a large sample of pulsars spread across the celestial sphere are combined, allows investigation of 'global' phenomena such as a background of gravitational waves or instabilities in atomic timescales that produce correlated timing residuals in the pulsars of the array. The Parkes Pulsar Timing Array (PPTA) is an implementation of the PTA concept based on observations with the Parkes 64-m radio telescope. A sample of 20 ms pulsars is being observed at three radio-frequency bands, 50 cm (similar to 700MHz), 20 cm (similar to 1400 MHz), and 10 cm (similar to 3100 MHz), with observations at intervals of two to three weeks. Regular observations commenced in early 2005. This paper describes the systems used for the PPTA observations and data processing, including calibration and timing analysis. The strategy behind the choice of pulsars, observing parameters, and analysis methods is discussed. Results are presented for PPTA data in the three bands taken between 2005 March and 2011 March. For 10 of the 20 pulsars, rms timing residuals are less than 1 mu s for the best band after fitting for pulse frequency and its first time derivative. Significant 'red' timing noise is detected in about half of the sample. We discuss the implications of these results on future projects including the International Pulsar Timing Array and a PTA based on the Square Kilometre Array. We also present an 'extended PPTA' data set that combines PPTA data with earlier Parkes timing data for these pulsars.
KeywordGravitational Waves Instrumentation: Miscellaneous Methods: Observational Pulsars: General
WOS HeadingsScience & Technology ; Physical Sciences
Indexed BySCI
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000320234700001
Citation statistics
Cited Times:221[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.CSIRO Astron & Space Sci, Epping, NSW 1710, Australia
2.Swinburne Univ Technol, Ctr Astrophys & Supercomp, Hawthorn, Vic 3122, Australia
3.Univ Calif San Diego, La Jolla, CA 92093 USA
4.Curtin Univ Technol, Int Ctr Radio Astron Res, Bentley, WA 6102, Australia
5.CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA
6.Max Planck Inst Radioastron, D-53121 Bonn, Germany
7.Univ Texas Brownsville, Ctr Adv Radio Astron, Brownsville, TX 78520 USA
8.Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA
9.Univ Zielona Gora, Kepler Inst Astron, PL-65265 Zielona Gora, Poland
10.Univ Melbourne, Sch Phys, Melbourne, Vic 3010, Australia
11.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
12.Univ Sydney, Sch Phys, Sydney, NSW 2006, Australia
13.Chinese Acad Sci, Xinjiang Astron Observ, Xinjiang 830011, Peoples R China
14.Southwest Univ, Sch Phys Sci & Technol, Chongqing 400715, Peoples R China
Recommended Citation
GB/T 7714
Manchester, R. N.,Hobbs, G.,Bailes, M.,et al. The Parkes Pulsar Timing Array Project[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF AUSTRALIA,2013,30:e017.
APA Manchester, R. N..,Hobbs, G..,Bailes, M..,Coles, W. A..,van Straten, W..,...&You, X. P..(2013).The Parkes Pulsar Timing Array Project.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF AUSTRALIA,30,e017.
MLA Manchester, R. N.,et al."The Parkes Pulsar Timing Array Project".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF AUSTRALIA 30(2013):e017.
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