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PhenomXPNR: An improved gravitational wave model linking precessing inspirals and NR-calibrated merger-ringdown
Eleanor Hamilton, Marta Colleoni, Jonathan E. Thompson +10
We present the frequency-domain quasi-circular precessing binary-black-hole model PhenomXPNR. This model combines the most precise available post-Newtonian description of the evolu…
PhenomXO4a: a phenomenological gravitational-wave model for precessing black-hole binaries with higher multipoles and asymmetries
Jonathan E. Thompson, Eleanor Hamilton, Lionel London +4
In this work we introduce PhenomXO4a, the first phenomenological, frequency-domain gravitational waveform model to incorporate multipole asymmetries and precession angles tuned to…
Revisiting the cosmic string origin of GW190521
Josu C. Aurrekoetxea, Charlie Hoy, Mark Hannam
For the first time we analyse gravitational-wave strain data using waveforms constructed from strong gravity simulations of cosmic string loops collapsing to Schwarzschild black ho…
Simple parameter estimation using observable features of gravitational-wave signals
Stephen Fairhurst, Charlie Hoy, Rhys Green +2
Using simple, intuitive arguments, we discuss the expected accuracy with which astrophysical parameters can be extracted from an observed gravitational wave signal. The observation…
A search technique to observe precessing compact binary mergers in the advanced detector era
Connor McIsaac, Charlie Hoy, Ian Harry
Gravitational-wave signals from compact binary coalescences are most efficiently identified through matched filter searches, which match the data against a pre-generated bank of gr…
A catalogue of precessing black-hole-binary numerical-relativity simulations
Eleanor Hamilton, Edward Fauchon-Jones, Mark Hannam +9
We present a public catalogue of numerical-relativity binary-black-hole simulations. The catalogue contains datasets from 80 distinct configurations of precessing binary-black-hole…
Accelerating Multi-Model Bayesian Inference, Model Selection and Systematic Studies for Gravitational Wave Astronomy
Charlie Hoy
Gravitational wave models are used to infer the properties of black holes in merging binaries from the observed gravitational wave signals through Bayesian inference. Although we h…
Asimov: A framework for coordinating parameter estimation workflows
Daniel Williams, John Veitch, Maria Luisa Chiofalo +4
Since the first detection in 2015 of gravitational waves from compact binary coalescence, improvements to the Advanced LIGO and Advanced Virgo detectors have expanded our view into…
General-relativistic precession in a black-hole binary
Mark Hannam, Charlie Hoy, Jonathan E. Thompson +24
The general-relativistic phenomenon of spin-induced orbital precession has not yet been observed in strong-field gravity. Gravitational-wave observations of binary black holes (BBH…
Evidence for subdominant multipole moments and precession in merging black-hole-binaries from GWTC-2.1
Charlie Hoy, Cameron Mills, Stephen Fairhurst
The LIGO--Virgo--KAGRA collaborations (LVK) produced a catalogue containing gravitational-wave (GW) observations from the first half of the third GW observing run (O3a). This catal…
Understanding how fast black holes spin by analysing data from the second gravitational-wave catalogue
Charlie Hoy, Stephen Fairhurst, Mark Hannam +1
The Advanced LIGO and Virgo detectors have now observed approximately 50 black-hole-binary mergers, from which we can begin to infer how rapidly astrophysical black holes spin. The…
Identifying when Precession can be Measured in Gravitational Waveforms
Rhys Green, Charlie Hoy, Stephen Fairhurst +3
In binary-black-hole systems where the black-hole spins are misaligned with the orbital angular momentum, precession effects leave characteristic modulations in the emitted gravita…
A guide to LIGO-Virgo detector noise and extraction of transient gravitational-wave signals
The LIGO Scientific Collaboration, the Virgo Collaboration, B. P. Abbott +1135
The LIGO Scientific Collaboration and the Virgo Collaboration have cataloged eleven confidently detected gravitational-wave events during the first two observing runs of the advanc…
Two-harmonic approximation for gravitational waveforms from precessing binaries
Stephen Fairhurst, Rhys Green, Charlie Hoy +2
Binary-black-hole orbits precess when the black-hole spins are mis-aligned with the binary's orbital angular momentum. The apparently complicated dynamics can in most cases be desc…
Model comparison from LIGO-Virgo data on GW170817's binary components and consequences for the merger remnant
The LIGO Scientific Collaboration, the Virgo Collaboration, B. P. Abbott +1191
GW170817 is the very first observation of gravitational waves originating from the coalescence of two compact objects in the mass range of neutron stars, accompanied by electromagn…
When will we observe binary black holes precessing?
Stephen Fairhurst, Rhys Green, Mark Hannam +1
After eleven gravitational-wave detections from compact-binary mergers, we are yet to observe the striking general-relativistic phenomenon of orbital precession. Measurements of pr…
Search for gravitational waves from Scorpius X-1 in the second Advanced LIGO observing run with an improved hidden Markov model
The LIGO Scientific Collaboration, the Virgo Collaboration, B. P. Abbott +1134
We present results from a semicoherent search for continuous gravitational waves from the low-mass X-ray binary Scorpius X-1, using a hidden Markov model (HMM) to track spin wander…
Search for intermediate mass black hole binaries in the first and second observing runs of the Advanced LIGO and Virgo network
The LIGO Scientific Collaboration, the Virgo Collaboration, B. P. Abbott +1196
Gravitational wave astronomy has been firmly established with the detection of gravitational waves from the merger of ten stellar mass binary black holes and a neutron star binary.…
Summary of Tests of General Relativity with the Binary Black Hole Signals from the LIGO-Virgo Catalog GWTC-1
Nathan K. Johnson-McDaniel
We summarize the four tests of general relativity carried out using the ten binary black hole signals detected by Advanced LIGO and Advanced Virgo and included in their first catal…
All-sky search for long-duration gravitational-wave transients in the second Advanced LIGO observing run
The LIGO Scientific Collaboration, the Virgo Collaboration, B. P. Abbott +1183
We present the results of a search for long-duration gravitational-wave transients in the data from the Advanced LIGO second observation run; we search for gravitational-wave trans…
Tests of General Relativity with the Binary Black Hole Signals from the LIGO-Virgo Catalog GWTC-1
The LIGO Scientific Collaboration, the Virgo Collaboration, B. P. Abbott +1142
The detection of gravitational waves by Advanced LIGO and Advanced Virgo provides an opportunity to test general relativity in a regime that is inaccessible to traditional astronom…
Search for the isotropic stochastic background using data from Advanced LIGO's second observing run
The LIGO Scientific Collaboration, the Virgo Collaboration, B. P. Abbott +1133
The stochastic gravitational-wave background is a superposition of sources that are either too weak or too numerous to detect individually. In this study we present the results fro…
Narrow-band search for gravitational waves from known pulsars using the second LIGO observing run
The LIGO Scientific Collaboration, the Virgo Collaboration, B. P. Abbott +1135
Isolated spinning neutron stars, asymmetric with respect to their rotation axis, are expected to be sources of continuous gravitational waves. The most sensitive searches for these…