Observing gravitational wave bursts in pulsar timing measurements

Details Observing gravitational wave bursts in pulsar timing measurements Observing gravitational wave bursts in pulsar timing measurements

2009-09-03

arxiv.org/abs/0909.0742v2

Mon.Not.Roy.Astron.Soc., 402, 417 (2010)

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

9 pages, 1 figure, generally matches the MNRAS version

Scientific paper

10.1111/j.1365-2966.2009.15887.x

We propose a novel method for observing the gravitational wave signature of super-massive black hole (SMBH) mergers. This method is based on detection of a specific type of gravitational waves, namely gravitational wave burst with memory (BWM), using pulsar timing. We study the unique signature produced by BWM in anomalous pulsar timing residuals. We show that the present day pulsar timing precision allows one to detect BWM due to SMBH mergers from distances up to 1 Gpc (for case of equal mass 10^8 Msun SMBH). Improvements in precision of pulsar timing together with the increase in number of observed pulsars should eventually lead to detection of a BWM signal due to SMBH merger, thereby making the proposed technique complementary to the capabilities of the planned LISA mission.

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