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20092026
most citedThe NANOGrav 15-year Data Set: Evidence for a Gravitational-Wave Background

1.5k citations · 6.9k across the 82 of their papers we have counts for

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gr-qc2026

Fast and Flow-rious: Gravitational Wave Background Bayesian Model Comparison using Normalizing Flows and Nested Sampling

David C. Wright, Aaron D. Johnson, Jeffrey S. Hazboun +1

In 2023, pulsar timing array (PTA) collaborations around the world announced evidence for a nanohertz gravitational-wave background (GWB). Beyond increasing the detection significa…

gr-qc2026

Evaluating the Fourier Approximation in Pulsar Timing Array Analysis

Yongqi Zhang, Hayden Scholz, Ken D. Olum +53

Pulsar timing arrays search for stochastic processes such as gravitational waves by comparing pulse time of arrival data for millisecond pulsars to expectations from a background w…

gr-qc2025

The NANOGrav 15-year Data Set: Search for Gravitational Wave Memory

Gabriella Agazie, Akash Anumarlapudi, Anne M. Archibald +102

We present the results of a search for nonlinear gravitational wave memory in the NANOGrav 15-year data set. We find no significant evidence for memory signals in the dataset, with…

gr-qc2024★ 2 cited

CMB and energy conservation limits on nanohertz gravitational waves

David Wright, John T. Giblin, Jeffrey Hazboun

The recent evidence for a stochastic gravitational wave background (GWB) in the nanohertz band, announced by pulsar timing array (PTA) collaborations around the world, has been pos…

gr-qc2023

The NANOGrav 15-year data set: Search for Transverse Polarization Modes in the Gravitational-Wave Background

Gabriella Agazie, Akash Anumarlapudi, Anne M. Archibald +96

Recently we found compelling evidence for a gravitational wave background with Hellings and Downs (HD) correlations in our 15-year data set. These correlations describe gravitation…

gr-qc2023★ 17 cited

How to Detect an Astrophysical Nanohertz Gravitational-Wave Background

Bence Bécsy, Neil J. Cornish, Patrick M. Meyers +93

Analysis of pulsar timing data have provided evidence for a stochastic gravitational wave background in the nHz frequency band. The most plausible source of such a background is th…

gr-qc2023

The NANOGrav 12.5-year Data Set: Search for Gravitational Wave Memory

Gabriella Agazie, Zaven Arzoumanian, Paul T. Baker +87

We present the results of a Bayesian search for gravitational wave (GW) memory in the NANOGrav 12.5-yr data set. We find no convincing evidence for any gravitational wave memory si…

gr-qc2023★ 1 cited

Analytic distribution of the optimal cross-correlation statistic for stochastic gravitational-wave-background searches using pulsar timing arrays

Jeffrey S. Hazboun, Patrick M. Meyers, Joseph D. Romano +2

We show via both analytical calculation and numerical simulation that the optimal cross-correlation statistic (OS) for stochastic gravitational-wave-background (GWB) searches using…

gr-qc2023★ 76 cited

Searching for continuous Gravitational Waves in the second data release of the International Pulsar Timing Array

M. Falxa, S. Babak, P. T. Baker +123

The International Pulsar Timing Array 2nd data release is the combination of datasets from worldwide collaborations. In this study, we search for continuous waves: gravitational wa…

gr-qc2021★ 62 cited

The NANOGrav 12.5-year data set: Search for Non-Einsteinian Polarization Modes in theGravitational-Wave Background

Zaven Arzoumanian, Paul T. Baker, Harsha Blumer +68

We search NANOGrav's 12.5-year data set for evidence of a gravitational wave background (GWB) with all the spatial correlations allowed by general metric theories of gravity. We fi…

gr-qc2020★ 47 cited

Common-spectrum process versus cross-correlation for gravitational-wave searches using pulsar timing arrays

Joseph D. Romano, Jeffrey S. Hazboun, Xavier Siemens +1

The North American Nanohertz Observatory for Gravitational Waves (NANOGrav) has recently reported strong statistical evidence for a common-spectrum red-noise process for all pulsar…

gr-qc2019

Physics Beyond the Standard Model With Pulsar Timing Arrays

Xavier Siemens, Jeffrey S. Hazboun, Paul T. Baker +5

Pulsar timing arrays (PTAs) will enable the detection of nanohertz gravitational waves (GWs) from a population of supermassive binary black holes (SMBBHs) in the next ye…

gr-qc2019★ 91 cited

Realistic sensitivity curves for pulsar timing arrays

Jeffrey S. Hazboun, Joseph D. Romano, Tristan L. Smith

We construct realistic sensitivity curves for pulsar timing array searches for gravitational waves, incorporating both red and white noise contributions to individual pulsar noise…

gr-qc2018★ 7 cited

Constructing an Explicit AdS/CFT Correspondence with Cartan Geometry

Jeffrey S Hazboun

An explicit AdS/CFT correspondence is shown for the Lie group . The Lie symmetry structures allow for the construction of two physical theories through the tools of Cartan…

gr-qc2017★ 19 cited

Power radiated by a binary system in a de Sitter Universe

Béatrice Bonga, Jeffrey S. Hazboun

Gravitational waves emitted by high redshift sources propagate through various epochs of the Universe including the current era of measurable, accelerated expansion. Historically,…

gr-qc2013★ 3 cited

Limiting alternative theories of gravity using gravitational wave observations across the spectrum

Jeffrey S. Hazboun, Manuel Pichardo Marcano, Shane L. Larson

The advent of gravitational wave astronomy provides new proving grounds for testing theories of gravity. Recent work has reinvigorated the study of bimetric theories of gravity and…

gr-qc2013★ 9 cited

Time and dark matter from the conformal symmetries of Euclidean space

Jeffrey S Hazboun, James T Wheeler

The quotient of the conformal group of Euclidean 4-space by its Weyl subgroup results in a geometry possessing many of the properties of relativistic phase space, including both a…

gr-qc2009★ 5 cited

The Effect of Negative-Energy Shells on the Schwarzschild Black Hole

Jeffrey S Hazboun, Tevian Dray

We construct Penrose diagrams for Schwarzschild spacetimes joined by massless shells of matter, in the process correcting minor flaws in the similar diagrams drawn by Dray and 't H…