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19 April 2024

» arxiv » 1005.1667

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The Sensitivity of the Parkes Pulsar Timing Array to Individual Sources of Gravitational Waves
D. R. B. Yardley ; G. B. Hobbs ; F. A. Jenet ; J. P. W. Verbiest ; Z. L. Wen ; R. N. Manchester ; W. A. Coles ; W. van Straten ; M. Bailes ; N. D. R. Bhat ; S. Burke-Spolaor ; D. J. Champion ; A. W. Hotan ; J. M. Sarkissian ;
Date:	10 May 2010
Abstract:	We present the sensitivity of the Parkes Pulsar Timing Array to gravitational waves emitted by individual super-massive black-hole binary systems in the early phases of coalescing at the cores of merged galaxies. Our analysis includes a detailed study of the effects of fitting a pulsar timing model to non-white timing residuals. Pulsar timing is sensitive at nanoHertz frequencies and hence complementary to LIGO and LISA. We place a sky-averaged constraint on the merger rate of nearby ($z < 0.6$) black-hole binaries in the early phases of coalescence with a chirp mass of $10^{10}, mn{M}_odot$ of less than one merger every seven years. The prospects for future gravitational-wave astronomy of this type with the proposed Square Kilometre Array telescope are discussed.
Source:	arXiv, 1005.1667
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