Detecting the stochastic gravitational wave background using pulsar timing

Details Detecting the stochastic gravitational wave background using pulsar timing Detecting the stochastic gravitational wave background using pulsar timing

2005-04-21

arxiv.org/abs/astro-ph/0504458v1

Astrophys.J. 625 (2005) L123-L126

Astronomy and Astrophysics

Astrophysics

Accepted by ApJ Letters

Scientific paper

10.1086/431220

The direct detection of gravitational waves is a major goal of current astrophysics. We provide details of a new method for detecting a stochastic background of gravitational waves using pulsar timing data. Our results show that regular timing observations of 40 pulsars each with a timing accuracy of 100 nano-seconds will be able to make a direct detection of the predicted stochastic background from coalescing black holes within five years. With an improved pre-whitening algorithm, or if the background is at the upper end of the predicted range, a significant detection should be possible with only 20 pulsars.

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