output
20032026
most citedGW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral

9.8k citations

144 papers

astro-ph.HE2026★ 1 cited

The NANOGrav 15 yr Data Set: Customized Chromatic Noise Models

Bjorn Larsen, Jeremy G. Baier, Daniel J. Oliver +53

Pulsar timing arrays conduct low-frequency gravitational wave searches, which require comprehensive accounting of various noise sources to achieve robust results. Interstellar prop…

astro-ph.HE2026

Gravitational Wave Measurement of the - Intrinsic Scatter at High Redshift

Cayenne Matt, Kayhan Gültekin, Gabriella Agazie +109

The observed GWB spectrum is higher in amplitude than model predictions by a factor of 2-3. Using a semi-analytic model, we evaluate the effect of a high-scatter supermassive black…

hep-ph2025

Misalignment dynamics of Scalar Condensates with Yukawa coupling: Particle and Entropy Production

Nathan Herring, Daniel Boyanovsky

Misalignment dynamics, the non-equilibrium evolution of a scalar (or pseudoscalar) condensate in a potential landscape, broadly describes a solution to the strong CP problem, a mec…

astro-ph.HE2025

Searching for Exotrojans in Pulsar Systems

Jackson D. Taylor, Emmanuel Fonseca, Lankeswar Dey +50

Trojan asteroids are found in the equilateral triangle Lagrange points of the Sun-Jupiter system in great number, though they also exist less prolifically in other parts of the Sol…

astro-ph.IM2025★ 2 cited

Design and Commissioning of an LWA Swarm Station: The Long Wavelength Array -- North Arm

C. A. Taylor, J. Dowell, G. B. Taylor +9

Modern radio interferometers are designed with increasingly sprawling geographical footprints, offering enhanced sensitivity and resolution. However, managing such extensive facili…

astro-ph.HE2025★ 2 cited

Pulsar Cyclic Spectroscopy in the Partial-Deconvolution Regime: Benefits & Limitations

Jacob E. Turner, Timothy Dolch, Paul B. Demorest +5

We explore possible advantages of cyclic spectroscopy for observations of pulsars in instances where full cyclic deconvolution is not feasible. We compute cyclic merits and full-de…

astro-ph.HE2025★ 3 cited

Rapid Construction of Joint Pulsar Timing Array Datasets: The Lite Method

Bjorn Larsen, Chiara M. F. Mingarelli, Paul T. Baker +41

The International Pulsar Timing Array (IPTA)'s second data release (IPTA DR2) combines decades of observations of 65 millisecond pulsars from 7 radio telescopes. IPTA datasets shou…

astro-ph.HE2024★ 4 cited

Inference on inner galaxy structure via gravitational waves from supermassive binaries

Yifan Chen, Matthias Daniel, Daniel J. D'Orazio +107

The detection of a stochastic gravitational wave background by pulsar-timing arrays indicates the presence of a population of supermassive black hole binaries. Although the observe…

hep-ph2024★ 2 cited

Is the finite temperature effective potential, effective for dynamics?

Nathan Herring, Shuyang Cao, Daniel Boyanovsky

We study the applicability of the finite temperature effective potential in the equation of motion of a homogeneous "misaligned" scalar condensate , and find important caveats t…

astro-ph.HE2024★ 5 cited

Exploring pulsar timing precision: A comparative study of polarization calibration methods for NANOGrav data from the Green Bank Telescope

Lankeswar Dey, Maura A. McLaughlin, Haley M. Wahl +32

Pulsar timing array experiments have recently uncovered evidence for a nanohertz gravitational wave background by precisely timing an ensemble of millisecond pulsars. The next sign…

astro-ph.HE2024★ 7 cited

A Cyclic Spectroscopy Scintillation Study of PSR B1937+21 I. Demonstration of Improved Scintillometry

Jacob E. Turner, Timothy Dolch, James M. Cordes +8

We use cyclic spectroscopy to perform high frequency-resolution analyses of multi-hour baseband Arecibo observations of the millisecond pulsar PSR B1937+21. This technique allows f…

hep-ph2024★ 5 cited

Is the effective potential, effective for dynamics?

Nathan Herring, Shuyang Cao, Daniel Boyanovsky

We critically examine the applicability of the effective potential within dynamical situations and find, in short, that the answer is negative. An important caveat of the use of an…

astro-ph.HE2023★ 10 cited

The Green Bank North Celestial Cap Survey IX: Timing Follow-up for 128 Pulsars

A. E. McEwen, J. K. Swiggum, D. L. Kaplan +27

The Green Bank North Celestial Cap survey is one of the largest and most sensitive searches for pulsars and transient radio objects. Observations for the survey have finished; prio…

astro-ph.HE2023★ 17 cited

The NANOGrav 12.5-year data set: A computationally efficient eccentric binary search pipeline and constraints on an eccentric supermassive binary candidate in 3C 66B

Gabriella Agazie, Zaven Arzoumanian, Paul T. Baker +85

The radio galaxy 3C 66B has been hypothesized to host a supermassive black hole binary (SMBHB) at its center based on electromagnetic observations. Its apparent 1.05-year period an…

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…

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★ 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.HE2023★ 7 cited

Scattering Delay Mitigation in High Accuracy Pulsar Timing: Cyclic Spectroscopy Techniques

Jacob E. Turner, Daniel R. Stinebring, Maura A. McLaughlin +3

We simulate scattering delays from the interstellar medium to examine the effectiveness of three estimators in recovering these delays in pulsar timing data. Two of these estimator…