Single-Source Gravitational Wave Limits from the J1713+0747 24-hr Global Campaign

Abstract

Dense, continuous pulsar timing observations over a 24-hr period provide a method for probing intermediate gravitational wave (GW) frequencies from 10 microhertz to 20 millihertz. The European Pulsar Timing Array (EPTA), the North American Nanohertz Observatory for Gravitational Waves (NANOGrav), the Parkes Pulsar Timing Array (PPTA), and the combined International Pulsar Timing Array (IPTA) all use millisecond pulsar observations to detect or constrain GWs typically at nanohertz frequencies. In the case of the IPTA's nine-telescope 24-Hour Global Campaign on millisecond pulsar J1713+0747, GW limits in the intermediate frequency regime can be produced. The negligible change in dispersion measure during the observation minimizes red noise in the timing residuals, constraining any contributions from GWs due to individual sources. At 10${}^{-5}$Hz, the 95% upper limit on strain is 10${}^{-11}$ for GW sources in the pulsar's direction.

4 pages, 2 figures, published in the proceedings of Amaldi 11

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Cited by in corpus (10)

• The Astrophysics of Nanohertz Gravitational Waves
• The Gravitational-Wave Physics II: Progress
• Gravitational wave research using pulsar timing arrays
• Improving timing sensitivity in the microhertz frequency regime: limits from PSR J1713$+$0747 on gravitational waves produced by super-massive black-hole binaries
• Extending the frequency reach of pulsar timing array based gravitational wave search without high cadence observations
• Using Pulsar Parameter Drifts to Detect Sub-Nanohertz Gravitational Waves
• Iterative time-domain method for resolving multiple gravitational wave sources in Pulsar Timing Array data
• Analysis of Multi-Hour Continuous Observations of Seven Millisecond Pulsars
• Parameter-Estimation Biases for Eccentric Supermassive Binary Black Holes in Pulsar Timing Arrays: Biases Caused by Ignored Pulsar Terms
• Noise Budget and Interstellar Medium Mitigation Advances in the NANOGrav Pulsar Timing Array