The International Pulsar Timing Array project: using pulsars as a gravitational wave detector

By G. Hobbs, A. Archibald, Z. Arzoumanian, D. Backer, M. Bailes, N. D. Ramesh Bhat, M. Burgay, S. Burke-Spolaor, David J. Champion, I. Cognard and 48 more. 2009

568 citations recorded by the source corpus.

The International Pulsar Timing Array project combines observations of pulsars from both northern and southern hemisphere observatories with the main aim of detecting ultra-low frequency (∼ 10−9–10−8 Hz) gravitational waves. Here we introduce the project, review the methods used to search for gravitational waves emitted from coalescing supermassive binary black-hole systems in the centres of merging galaxies and discuss the status of the project.

Subfields: Astronomy and Astrophysics, Oceanography

View Paper: https://www.semanticscholar.org/paper/9f35029b8f2a25c474364e3db0a9e4932311c8aa

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Astronomy and Astrophysics

In Oceanography

Citations in the corpus

Selection bias in dynamically measured supermassive black hole samples: its consequences and the quest for the most fundamental relation (2016, background): “The normalization of theMbh-Mbulge relation is also a key ingredient in predicting what pulsar timing array searches (e.g., Sesana et al. 2008; Hobbs et al. 2010; Sesana2013; Kramer & Champion 2013; Rosado & Sesana 2014; Rosado et al. 2015) for gravitational radiation will see (Bonnor & Rotenberg…”
Dynamical boson stars (2012, methodology): “With these estimates of the GW background, future observations from detectors such as LISA and the International Pulsar Timing Array [264] may be able to set constraints on scalar field theories.”
THE NANOGRAV NINE-YEAR DATA SET: OBSERVATIONS, ARRIVAL TIME MEASUREMENTS, AND ANALYSIS OF 37 MILLISECOND PULSARS (2015, background): “The North American Nanohertz Observatory for Gravitational Waves (NANOGrav)27 is one of several PTA programs across the globe that collectively form the International Pulsar Timing Array (IPTA; Hobbs et al. 2010).”
Placing limits on the stochastic gravitational-wave background using European Pulsar Timing Array data (2011, background): “…Radio Telescope (NRT) near Nançay in France and the Sardinia Radio Telescope (SRT) in Sardinia, Italy.1 It is likely that the first detection of GWs by a PTA will occur as a result of a joint effort of all current PTA projects: an International Pulsar Timing Array (IPTA; Hobbs et al. 2010).”
Expected properties of the first gravitational wave signal detected with pulsar timing arrays (2015, background): “The three groups join forces and combine data under the aegis of the International PTA (IPTA, Hobbs et al. 2010), which is formally a consortium of consortia.”
Science with the space-based interferometer eLISA. III: probing the expansion of the universe using gravitational wave standard sirens (2016, background): “Three Pulsar Timing Arrays are currently in operation – the EPTA in Europe [6], NANOGrav in the US [7] and PPTA in Australia [8] – sharing data under the aegis – 1 – of the International Pulsar Timing Array (IPTA) [9]: they monitor the frequency window 10−8 to 10−9 Hz and have already placed interes”
European Pulsar Timing Array Limits on Continuous Gravitational Waves from Individual Supermassive Black Hole Binaries (2015, background): “…2013) and the North American Nanohertz Observatory for Gravitational Waves (NANOGrav, McLaughlin 2013), joining together in the International Pulsar Timing Array (IPTA, Hobbs et al. 2010; Manchester & IPTA 2013), are constantly improving their sensitivity in the frequency range of ∼ 10−9 − 10−6 Hz.”
Search for an Isotropic Gravitational-wave Background with the Parkes Pulsar Timing Array (2023, background): “…spatial correlations depends primarily on the number of pulsar pairs and their sky distribution (Siemens et al. 2013; Taylor et al. 2016), which motivates the combination of global PTA datasets under the International Pulsar Timing Array (IPTA; Hobbs et al. 2010; Antoniadis et al. 2022) project.”
Massive Black Hole Binary Mergers in Dynamical Galactic Environments (2016, methodology): “Additionally, the International PTA (IPTA, Hobbs et al. 2010) aims to combine the data sets from each individual project, and has recently produced their first public data release (Verbiest et al. 2016).”
Searching for isotropic stochastic gravitational-wave background in the international pulsar timing array second data release (2021, unknown): “These collaborations support the International Pulsar Timing Array (IPTA) [19, 20].”
Systematic investigation of the expected gravitational wave signal from supermassive black hole binaries in the pulsar timing band (2012, background): “…Manchester et al. 2012) and the North American Nanohertz Observatory for Gravitational Waves (NANOGrav, Jenet et al. 2009), joining together in the Interational Pulsar Timing Array (IPTA, Hobbs et al. 2010), are constantly improving their sensitivity in the frequency rangeof ∼ 10−9 − 10−6 Hz.”
Quantum squeezed light in gravitational-wave detectors (2014, background): “1 Present address: Laboratoire Kastler Brossel, UPMC, Paris, France 2 Other GW detector systems, such as space-based detectors [7], pulsar timing [8] and resonant mass detectors [9] are acknowledged but are not discussed.”
The International Pulsar Timing Array: First Data Release (2016, methodology): “Combined, these three PTAs form the International PTA (or IPTA, as previously described by Hobbs et al. 2010a; Manchester & IPTA 2013) and presently observe 49 pulsars (see Table 2 for details) in the quest for the aforementioned correlated signals and for GWs in particular.”
HIRAX: a probe of dark energy and radio transients (2016, background): “HIRAX pulsar searches have the potential to discover a few thousand new pulsars, while pulsar monitoring would provide important inputs to timing arrays used for the detection of long-wavelength gravitational waves, inaccessible to other probes.(33) Finally, up-channelizing the data to a spectral re”
European Pulsar Timing Array Limits On An Isotropic Stochastic Gravitational-Wave Background (2015, background): “The three PTA projects also work together as the International PTA (IPTA; Hobbs et al. 2010), where all three data sets are combined in order to produce ever more robust and constraining limits on the GWB, with the eventual goal of making a first detection.”