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    A 24 HR global campaign to assess precision timing of the millisecond pulsar J1713+0747

    Access Status
    Fulltext not available
    Authors
    Dolch, T.
    Lam, M.
    Cordes, J.
    Chatterjee, S.
    Bassa, C.
    Bhattacharyya, B.
    Champion, D.
    Cognard, I.
    Crowter, K.
    Demorest, P.
    Hessels, J.
    Janssen, G.
    Jenet, F.
    Jones, G.
    Jordan, C.
    Karuppusamy, R.
    Keith, M.
    Kondratiev, V.
    Kramer, M.
    Lazarus, P.
    Lazio, T.
    Lee, K.
    McLaughlin, M.
    Roy, J.
    Shannon, Ryan
    Stairs, I.
    Stovall, K.
    Verbiest, J.
    Madison, D.
    Palliyaguru, N.
    Perrodin, D.
    Ransom, S.
    Stappers, B.
    Zhu, W.
    Dai, S.
    Desvignes, G.
    Guillemot, L.
    Liu, K.
    Lyne, A.
    Perera, B.
    Petroff, E.
    Rankin, J.
    Smits, R.
    Date
    2014
    Type
    Journal Article
    
    Metadata
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    Citation
    Dolch, T. and Lam, M. and Cordes, J. and Chatterjee, S. and Bassa, C. and Bhattacharyya, B. and Champion, D. et al. 2014. A 24 HR global campaign to assess precision timing of the millisecond pulsar J1713+0747. Astrophysical Journal. 794 (1): Article ID 21.
    Source Title
    Astrophysical Journal
    DOI
    10.1088/0004-637X/794/1/21
    ISSN
    0004-637X
    School
    Curtin Institute of Radio Astronomy (Physics)
    URI
    http://hdl.handle.net/20.500.11937/13288
    Collection
    • Curtin Research Publications
    Abstract

    The radio millisecond pulsar J1713+0747 is regarded as one of the highest-precision clocks in the sky and is regularly timed for the purpose of detecting gravitational waves. The International Pulsar Timing Array Collaboration undertook a 24 hr global observation of PSR J1713+0747 in an effort to better quantify sources of timing noise in this pulsar, particularly on intermediate (1–24 hr) timescales. We observed the pulsar continuously over 24 hr with the Arecibo, Effelsberg, GMRT, Green Bank, LOFAR, Lovell, Nançay, Parkes, and WSRT radio telescopes. The combined pulse times-of-arrival presented here provide an estimate of what sources of timing noise, excluding DM variations, would be present as compared to an idealized √ N improvement in timing precision, where N is the number of pulses analyzed. In the case of this particular pulsar, we find that intrinsic pulse phase jitter dominates arrival time precision when the signal-to-noise ratio of single pulses exceeds unity, as measured using the eight telescopes that observed at L band / 1.4 GHz. We present first results of specific phenomena probed on the unusually long timescale (for a single continuous observing session) of tens of hours, in particular interstellar scintillation, and discuss the degree to which scintillation and profile evolution affect precision timing. This paper presents the data set as a basis for future, deeper studies.

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      Dolch, T.; Lam, M.; Cordes, J.; Chatterjee, S.; Bassa, C.; Bhattacharyya, B.; Champion, D.; Cognard, I.; Crowter, K.; Demorest, P.; Hessels, J.; Janssen, G.; Jenet, F.; Jones, G.; Jordan, C.; Karuppusamy, R.; Keith, M.; Kondratiev, V.; Kramer, M.; Lazarus, P.; Lazio, T.; Lee, K.; McLaughlin, M.; Roy, J.; Shannon, Ryan; Stairs, I.; Stovall, K.; Verbiest, J.; Madison, D.; Palliyaguru, N.; Perrodin, D.; Ransom, S.; Stappers, B.; Zhu, W.; Dai, S.; Desvignes, G.; Guillemot, L.; Liu, K.; Lyne, A.; Perera, B.; Petroff, E.; Rankin, J.; Smits, R. (2014)
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