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20212023
most citedThe NANOGrav 15-year Data Set: Evidence for a Gravitational-Wave Background

1.5k citations · 4k across the 14 of their papers we have counts for

collaborators

17 papers

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…

astro-ph.HE2023

Comparing recent PTA results on the nanohertz stochastic gravitational wave background

The International Pulsar Timing Array Collaboration, G. Agazie, J. Antoniadis +242

The Australian, Chinese, European, Indian, and North American pulsar timing array (PTA) collaborations recently reported, at varying levels, evidence for the presence of a nanohert…

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…

astro-ph.HE2023★ 380 cited

The NANOGrav 15-year Data Set: Constraints on Supermassive Black Hole Binaries from the Gravitational Wave Background

Gabriella Agazie, Akash Anumarlapudi, Anne M. Archibald +111

The NANOGrav 15-year data set shows evidence for the presence of a low-frequency gravitational-wave background (GWB). While many physical processes can source such low-frequency gr…

astro-ph.HE2023★ 159 cited

The NANOGrav 15-year Data Set: Bayesian Limits on Gravitational Waves from Individual Supermassive Black Hole Binaries

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

Evidence for a low-frequency stochastic gravitational wave background has recently been reported based on analyses of pulsar timing array data. The most likely source of such a bac…

astro-ph.HE2023★ 16 cited

The NANOGrav 15-year Data Set: Search for Anisotropy in the Gravitational-Wave Background

Gabriella Agazie, Akash Anumarlapudi, Anne M. Archibald +90

The North American Nanohertz Observatory for Gravitational Waves (NANOGrav) has reported evidence for the presence of an isotropic nanohertz gravitational wave background (GWB) in…

astro-ph.HE2023★ 801 cited

The NANOGrav 15-year Data Set: Search for Signals from New Physics

Adeela Afzal, Gabriella Agazie, Akash Anumarlapudi +120

The 15-year pulsar timing data set collected by the North American Nanohertz Observatory for Gravitational Waves (NANOGrav) shows positive evidence for the presence of a low-freque…

astro-ph.HE2023★ 154 cited

The NANOGrav 15-Year Data Set: Detector Characterization and Noise Budget

Gabriella Agazie, Akash Anumarlapudi, Anne M. Archibald +88

Pulsar timing arrays (PTAs) are galactic-scale gravitational wave detectors. Each individual arm, composed of a millisecond pulsar, a radio telescope, and a kiloparsecs-long path,…

astro-ph.HE2023★ 376 cited

The NANOGrav 15-year Data Set: Observations and Timing of 68 Millisecond Pulsars

Gabriella Agazie, Md Faisal Alam, Akash Anumarlapudi +97

We present observations and timing analyses of 68 millisecond pulsars (MSPs) comprising the 15-year data set of the North American Nanohertz Observatory for Gravitational Waves (NA…

astro-ph.HE2023★ 1.5k cited

The NANOGrav 15-year Data Set: Evidence for a Gravitational-Wave Background

Gabriella Agazie, Akash Anumarlapudi, Anne M. Archibald +111

We report multiple lines of evidence for a stochastic signal that is correlated among 67 pulsars from the 15-year pulsar-timing data set collected by the North American Nanohertz O…

astro-ph.HE2023★ 41 cited

The NANOGrav 15-year Gravitational-Wave Background Methods

Aaron D. Johnson, Patrick M. Meyers, Paul T. Baker +93

Pulsar timing arrays (PTAs) use an array of millisecond pulsars to search for gravitational waves in the nanohertz regime in pulse time of arrival data. This paper presents rigorou…

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…

astro-ph.GA2023★ 38 cited

The NANOGrav 12.5-year Data Set: Bayesian Limits on Gravitational Waves from Individual Supermassive Black Hole Binaries

Zaven Arzoumanian, Paul T. Baker, Laura Blecha +75

Pulsar timing array collaborations, such as the North American Nanohertz Observatory for Gravitational Waves (NANOGrav), are seeking to detect nanohertz gravitational waves emitted…

astro-ph.HE2022★ 344 cited

The International Pulsar Timing Array second data release: Search for an isotropic Gravitational Wave Background

J. Antoniadis, Z. Arzoumanian, S. Babak +123

We searched for an isotropic stochastic gravitational wave background in the second data release of the International Pulsar Timing Array, a global collaboration synthesizing decad…

astro-ph.HE2021★ 11 cited

Handing off the outcome of binary neutron star mergers for accurate and long-term post-merger simulations

Federico G. Lopez Armengol, Zachariah B. Etienne, Scott C. Noble +20

We perform binary neutron star (BNS) merger simulations in full dynamical general relativity with IllinoisGRMHD, on a Cartesian grid with adaptive-mesh refinement. After the remnan…

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…

astro-ph.HE2021★ 25 cited

HARM3D+NUC: A new method for simulating the post-merger phase of binary neutron star mergers with GRMHD, tabulated EOS and neutrino leakage

Ariadna Murguia-Berthier, Scott C. Noble, Luke F. Roberts +25

The first binary neutron star merger has already been detected in gravitational waves. The signal was accompanied by an electromagnetic counterpart including a kilonova component p…