Development of a pulsar-based time-scale

G. Hobbs; W. Coles; R. N. Manchester; M. J. Keith; R. M. Shannon; D. Chen; M. Bailes; N. D R Bhat; S. Burke-Spolaor; D. Champion; A. Chaudhary; A. Hotan; J. Khoo; J. Kocz; Y. Levin; S. Oslowski; B. Preisig; V. Ravi; J. E. Reynolds; J. Sarkissian; W. van Straten; J. P W Verbiest; D. Yardley; X. P. You

doi:10.1111/j.1365-2966.2012.21946

Development of a pulsar-based time-scale

G. Hobbs, W. Coles, R. N. Manchester, M. J. Keith, R. M. Shannon, D. Chen, M. Bailes, N. D R Bhat, S. Burke-Spolaor, D. Champion, A. Chaudhary, A. Hotan, J. Khoo, J. Kocz, Y. Levin, S. Oslowski, B. Preisig, V. Ravi, J. E. Reynolds, J. SarkissianW. van Straten, J. P W Verbiest, D. Yardley, X. P. You

Research output: Contribution to journal › Article › peer-review

Abstract

Using observations of pulsars from the Parkes Pulsar Timing Array (PPTA) project we develop the first pulsar-based time-scale that has a precision comparable to the uncertainties in International Atomic Time-scales (TAI). Our ensemble of pulsars provides an Ensemble Pulsar Scale (EPS) analogous to the free atomic time-scale Échelle Atomique Libre. The EPS can be used to detect fluctuations in atomic time-scales and therefore can lead to a new realization of Terrestrial Time, TT(PPTA11).We successfully follow features known to affect the frequency of the TAI, and we find marginally significant differences between TT(PPTA11) and TT(BIPM11). We discuss the various phenomena that lead to a correlated signal in the pulsar timing residuals and therefore limit the stability of the pulsar time-scale. © 2012 The Authors.

Original language	English
Pages (from-to)	2780-2787
Number of pages	7
Journal	Monthly Notices of the Royal Astronomical Society
Volume	427
Issue number	4
DOIs	https://doi.org/10.1111/j.1365-2966.2012.21946
Publication status	Published - 21 Dec 2012

Keywords

Pulsars: General
Time

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Hobbs, G., Coles, W., Manchester, R. N., Keith, M. J., Shannon, R. M., Chen, D., Bailes, M., Bhat, N. D. R., Burke-Spolaor, S., Champion, D., Chaudhary, A., Hotan, A., Khoo, J., Kocz, J., Levin, Y., Oslowski, S., Preisig, B., Ravi, V., Reynolds, J. E., ... You, X. P. (2012). Development of a pulsar-based time-scale. Monthly Notices of the Royal Astronomical Society, 427(4), 2780-2787. https://doi.org/10.1111/j.1365-2966.2012.21946

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title = "Development of a pulsar-based time-scale",

abstract = "Using observations of pulsars from the Parkes Pulsar Timing Array (PPTA) project we develop the first pulsar-based time-scale that has a precision comparable to the uncertainties in International Atomic Time-scales (TAI). Our ensemble of pulsars provides an Ensemble Pulsar Scale (EPS) analogous to the free atomic time-scale {\'E}chelle Atomique Libre. The EPS can be used to detect fluctuations in atomic time-scales and therefore can lead to a new realization of Terrestrial Time, TT(PPTA11).We successfully follow features known to affect the frequency of the TAI, and we find marginally significant differences between TT(PPTA11) and TT(BIPM11). We discuss the various phenomena that lead to a correlated signal in the pulsar timing residuals and therefore limit the stability of the pulsar time-scale. {\textcopyright} 2012 The Authors.",

keywords = "Pulsars: General, Time",

author = "G. Hobbs and W. Coles and Manchester, \{R. N.\} and Keith, \{M. J.\} and Shannon, \{R. M.\} and D. Chen and M. Bailes and Bhat, \{N. D R\} and S. Burke-Spolaor and D. Champion and A. Chaudhary and A. Hotan and J. Khoo and J. Kocz and Y. Levin and S. Oslowski and B. Preisig and V. Ravi and Reynolds, \{J. E.\} and J. Sarkissian and \{van Straten\}, W. and Verbiest, \{J. P W\} and D. Yardley and You, \{X. P.\}",

year = "2012",

month = dec,

day = "21",

doi = "10.1111/j.1365-2966.2012.21946",

language = "English",

volume = "427",

pages = "2780--2787",

journal = "Monthly Notices of the Royal Astronomical Society",

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Hobbs, G, Coles, W, Manchester, RN, Keith, MJ, Shannon, RM, Chen, D, Bailes, M, Bhat, NDR, Burke-Spolaor, S, Champion, D, Chaudhary, A, Hotan, A, Khoo, J, Kocz, J, Levin, Y, Oslowski, S, Preisig, B, Ravi, V, Reynolds, JE, Sarkissian, J, van Straten, W, Verbiest, JPW, Yardley, D & You, XP 2012, 'Development of a pulsar-based time-scale', Monthly Notices of the Royal Astronomical Society, vol. 427, no. 4, pp. 2780-2787. https://doi.org/10.1111/j.1365-2966.2012.21946

TY - JOUR

T1 - Development of a pulsar-based time-scale

AU - Hobbs, G.

AU - Coles, W.

AU - Manchester, R. N.

AU - Keith, M. J.

AU - Shannon, R. M.

AU - Chen, D.

AU - Bailes, M.

AU - Bhat, N. D R

AU - Burke-Spolaor, S.

AU - Champion, D.

AU - Chaudhary, A.

AU - Hotan, A.

AU - Khoo, J.

AU - Kocz, J.

AU - Levin, Y.

AU - Oslowski, S.

AU - Preisig, B.

AU - Ravi, V.

AU - Reynolds, J. E.

AU - Sarkissian, J.

AU - van Straten, W.

AU - Verbiest, J. P W

AU - Yardley, D.

AU - You, X. P.

PY - 2012/12/21

Y1 - 2012/12/21

N2 - Using observations of pulsars from the Parkes Pulsar Timing Array (PPTA) project we develop the first pulsar-based time-scale that has a precision comparable to the uncertainties in International Atomic Time-scales (TAI). Our ensemble of pulsars provides an Ensemble Pulsar Scale (EPS) analogous to the free atomic time-scale Échelle Atomique Libre. The EPS can be used to detect fluctuations in atomic time-scales and therefore can lead to a new realization of Terrestrial Time, TT(PPTA11).We successfully follow features known to affect the frequency of the TAI, and we find marginally significant differences between TT(PPTA11) and TT(BIPM11). We discuss the various phenomena that lead to a correlated signal in the pulsar timing residuals and therefore limit the stability of the pulsar time-scale. © 2012 The Authors.

AB - Using observations of pulsars from the Parkes Pulsar Timing Array (PPTA) project we develop the first pulsar-based time-scale that has a precision comparable to the uncertainties in International Atomic Time-scales (TAI). Our ensemble of pulsars provides an Ensemble Pulsar Scale (EPS) analogous to the free atomic time-scale Échelle Atomique Libre. The EPS can be used to detect fluctuations in atomic time-scales and therefore can lead to a new realization of Terrestrial Time, TT(PPTA11).We successfully follow features known to affect the frequency of the TAI, and we find marginally significant differences between TT(PPTA11) and TT(BIPM11). We discuss the various phenomena that lead to a correlated signal in the pulsar timing residuals and therefore limit the stability of the pulsar time-scale. © 2012 The Authors.

KW - Pulsars: General

KW - Time

U2 - 10.1111/j.1365-2966.2012.21946

DO - 10.1111/j.1365-2966.2012.21946

M3 - Article

SN - 1365-2966

VL - 427

SP - 2780

EP - 2787

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 4

ER -

Development of a pulsar-based time-scale

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Keywords

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