1.5k citations · 16k across the 156 of their papers we have counts for
73 papers · 1 filter
Toward a complete understanding of the properties of GW190521
Aasim Jan, Sophia Nicolella, Aaron Zimmerman +4
Interpreting GW190521 remains challenging due to its exceptionally high total mass and correspondingly small number of observable gravitational-wave cycles, which gives rise to deg…
Scaling RIFT 1: Extending RIFT to third-generation gravitational-wave analyses
R. O'Shaughnessy, A. Jan, J. Lange +1
Interpretation of compact binary signals observed by third-generation gravitational-wave detectors is complicated by their high signal-to-noise ratios, often reaching hundreds to t…
Analysis of GWTC-3 with multiple quasicircular models
N. Manning, R. O'Shaughnessy
The interpretation of gravitational wave sources depends on the specific choice of model used to interpret signals. Previous analyses of GWTC-3 event candidates using SEOBNRv4PHM,…
Physics-based phenomenological modeling of binary black hole hierarchical formation 2: Autodifferentiable functional inference of hierarchical compact-binary populations
R. O'Shaughnessy, M. Zeeshan, M. Qazalbash
The gravitational-wave (GW) census contains mass and spin structure consistent with contributions from black holes assembled through repeated mergers in dense environments. Connect…
Physics-based phenomenological modeling of binary black hole hierarchical formation 1: Synthetic universes from globular cluster simulations for GWTC
R. O'Shaughnessy, R. Mechum, M. Qazalbash +2
We iteratively model the GWTC-5.0 binary-black-hole census with three components. First, a physically normalized population from Rapster globular-cluster simulations spans cluster…
Parameter estimation of gravitational waves from hyperbolic black hole encounters
Chad Henshaw, Jacob Lange, Peter Lott +2
Systems of two black holes with unbound orbits can produce a diverse array of gravitational wave signals with rich morphology. This parameter space encompasses both hyperbolic orbi…
Adapting a novel framework for rapid inference of massive black hole binaries for LISA
Aasim Jan, Richard O'Shaughnessy, Deirdre Shoemaker +1
The Laser Interferometer Space Antenna (LISA) is designed to detect a variety of gravitational-wave events, including mergers of massive black hole binaries, stellar-mass black hol…
Inference on neutron star parameters and the nuclear equation of state with RIFT, using prior EOS information
Askold Vilkha, Anjali Yelikar, Richard O'Shaughnessy +1
In this paper, we present an inference method for determining neutron star parameters and constraining the nuclear equation of state (EOS) using the RIFT parameter inference engine…
Waveform systematics in gravitational-wave inference of signals from binary neutron star merger models incorporating higher order modes information
A. B. Yelikar, R. O' Shaughnessy, J. Lange +1
Accurate information from gravitational wave signals from coalescing binary neutron stars provides essential input to downstream interpretations, including inference of the neutron…
Eccentricity matters: Impact of eccentricity on inferred binary black hole populations
Muhammad Zeeshan, Richard O'Shaughnessy
Gravitational waves (GW), emanating from binary black holes (BBH), encode vital information about their source. GW signals enable us to deduce key properties of the BBH population…
Parameter Estimation for Low-Mass Eccentric Black Hole Binaries
Katelyn J. Wagner, Richard O'Shaughnessy
Recent studies have shown that orbital eccentricity may indicate dynamical assembly as a formation mechanism for binary black holes. Eccentricity leaves a distinct signature in gra…
Waveform Modelling for the Laser Interferometer Space Antenna
LISA Consortium Waveform Working Group, Niayesh Afshordi, Sarp Akçay +144
LISA, the Laser Interferometer Space Antenna, will usher in a new era in gravitational-wave astronomy. As the first anticipated space-based gravitational-wave detector, it will exp…
Analysis of GWTC-3 with fully precessing numerical relativity surrogate models
Tousif Islam, Avi Vajpeyi, Feroz H. Shaik +6
The third Gravitational-Wave Transient Catalog (GWTC-3) contains 90 binary coalescence candidates detected by the LIGO-Virgo-KAGRA Collaboration (LVK). We provide a re-analysis of…
Iteratively Comparing Gravitational-Wave Observations to the Evolution of Massive Stellar Binaries
Vera Delfavero, Richard O'Shaughnessy, Krzysztof Belczynski +2
Gravitational-wave observations have the capability to strongly differentiate between different assumptions for how binary compact objects form. In this work, we show how to carefu…
Gravitational wave source populations: Disentangling an AGN component
V. Gayathri, Daniel Wysocki, Y. Yang +4
The astrophysical origin of the over 90 compact binary mergers discovered by the LIGO and Virgo gravitational wave observatories is an open question. While the unusual mass and spi…
Eccentricity estimation for five binary black hole mergers with higher-order gravitational wave modes
H. L. Iglesias, J. Lange, I. Bartos +9
The detection of orbital eccentricity for a binary black hole system via gravitational waves is a key signature to distinguish between the possible binary origins. The identificati…
Cost Minimization in Acquisition for Gravitational Wave Surrogate Modeling
Karl Daningburg, Richard O'Shaughnessy
Gravitational wave science is dependent upon expensive numerical simulations, which provide the foundational understanding of binary merger radiation needed to interpret observatio…
Astrophysics with the Laser Interferometer Space Antenna
Pau Amaro Seoane, Jeff Andrews, Manuel Arca Sedda +156
The Laser Interferometer Space Antenna (LISA) will be a transformative experiment for gravitational wave astronomy, and, as such, it will offer unique opportunities to address many…
Implementation of a generalized precession parameter in the RIFT parameter estimation algorithm
Chad Henshaw, Richard O'Shaughnessy, Laura Cadonati
Since the initial discovery of gravitational waves in 2015, significant developments have been made towards waveform interpretation and estimation of compact binary source paramete…
RUNMON-RIFT: Adaptive Configuration and Healing for Large-Scale Parameter Inference
Rhiannon Udall, Joshua Brandt, Grihith Manchanda +5
Gravitational wave parameter inference pipelines operate on data containing unknown sources on distributed hardware with unreliable performance. For one specific analysis pipeline…
Normal Approximate Likelihoods to Gravitational Wave Events
Vera Delfavero, Richard O'Shaughnessy, Daniel Wysocki +1
Gravitational wave observations of quasicircular compact binary mergers in principle provide an arbitrarily complex likelihood over eight independent intrinsic parameters: the mass…
Application of the third RIT binary black hole simulations catalog to parameter estimation of gravitational waves signals from the LIGO-Virgo O1/O2 observational runs
James Healy, Carlos O. Lousto, Jacob Lange +1
Using exclusively the 777 full numerical waveforms of the third Binary Black Holes RIT catalog, we reanalyze the ten black hole merger signals reported in LIGO/Virgo's O1/O2 observ…
Inferring the neutron star equation of state simultaneously with the population of merging neutron stars
Daniel Wysocki, Richard O'Shaughnessy, Leslie Wade +1
Observations of the properties of multiple coalescing neutron stars will simultaneously provide insight into neutron star mass and spin distribution, the neutron star merger rate,…
Hybrid waveforms for generic precessing binaries for gravitational-wave data analysis
Jam Sadiq, Yosef Zlochower, Richard O'Shaughnessy +1
We construct hybrid binary black holes merger waveforms using analytical model waveforms for the early inspiral phase and numerical relativity waveforms for late inspiral to merger…