321 citations · 842 across the 8 of their papers we have counts for
8 papers
The NANOGrav Nine-year Data Set: Limits on the Isotropic Stochastic Gravitational Wave Background
Zaven Arzoumanian, Adam Brazier, Sarah Burke-Spolaor +45
We compute upper limits on the nanohertz-frequency isotropic stochastic gravitational wave background (GWB) using the 9-year data release from the North American Nanohertz Observat…
The NANOGrav Nine-year Data Set: Observations, Arrival Time Measurements, and Analysis of 37 Millisecond Pulsars
Z. Arzoumanian, A. Brazier, S. Burke-Spolaor +41
We present high-precision timing observations spanning up to nine years for 37 millisecond pulsars monitored with the Green Bank and Arecibo radio telescopes as part of the North A…
NANOGrav Constraints on Gravitational Wave Bursts with Memory
Z. Arzoumanian, A. Brazier, S. Burke-Spolaor +39
Among efforts to detect gravitational radiation, pulsar timing arrays are uniquely poised to detect "memory" signatures, permanent perturbations in spacetime from highly energetic…
NANOGrav Limits on Gravitational Waves from Individual Supermassive Black Hole Binaries in Circular Orbits
Z. Arzoumanian, A. Brazier, S. Burke-Spolaor +36
The North American Nanohertz Observatory for Gravitational Waves (NANOGrav) project currently observes 43 pulsars using the Green Bank and Arecibo radio telescopes. In this work we…
Post-Newtonian Conservation Laws in Rigid Quasilocal Frames
Paul L. McGrath, Melanie Chanona, Richard J. Epp +2
In recent work we constructed completely general conservation laws for energy and linear and angular momentum of extended systems in general relativity based on the notion of a rig…
Gravitational wave detector response in terms of spacetime Riemann curvature
Michael J. Koop, Lee Samuel Finn
Gravitational wave detectors are typically described as responding to gravitational wave metric perturbations, which are gauge-dependent and --- correspondingly --- unphysical quan…
High-order quantum back-reaction and quantum cosmology with a positive cosmological constant
Martin Bojowald, David Brizuela, Hector H. Hernandez +2
When quantum back-reaction by fluctuations, correlations and higher moments of a state becomes strong, semiclassical quantum mechanics resembles a dynamical system with a high-dime…
Chaos in a 3-body Self-Gravitating Cosmological Spacetime
M. J. Koop, R. B. Mann
We investigate the equal-mass 3-body system in general relativistic lineal gravity in the presence of a cosmological constant . The cosmological vacuum energy introduces feature…