615 citations · 2.5k across the 24 of their papers we have counts for
24 papers
Multipolar Effective-One-Body Waveforms for Precessing Binary Black Holes: Construction and Validation
Serguei Ossokine, Alessandra Buonanno, Sylvain Marsat +12
As gravitational-wave detectors become more sensitive, we will access a greater variety of signals emitted by compact binary systems, shedding light on their astrophysical origin a…
Spectral Cauchy-characteristic extraction of the gravitational wave news function
Kevin Barkett, Jordan Moxon, Mark A. Scheel +1
We present an improved spectral algorithm for Cauchy-characteristic extraction and characteristic evolution of gravitational waves in numerical relativity. The new algorithms impro…
Measuring the properties of nearly extremal black holes with gravitational waves
Katerina Chatziioannou, Geoffrey Lovelace, Michael Boyle +7
Characterizing the properties of black holes is one of the most important science objectives for gravitational-wave observations. Astrophysical evidence suggests that black holes t…
A Numerical Relativity Waveform Surrogate Model for Generically Precessing Binary Black Hole Mergers
Jonathan Blackman, Scott E. Field, Mark A. Scheel +6
A generic, non-eccentric binary black hole (BBH) system emits gravitational waves (GWs) that are completely described by 7 intrinsic parameters: the black hole spin vectors and the…
An improved effective-one-body model of spinning, nonprecessing binary black holes for the era of gravitational-wave astrophysics with advanced detectors
Alejandro Bohé, Lijing Shao, Andrea Taracchini +17
We improve the accuracy of the effective-one-body (EOB) waveforms that were employed during the first observing run of Advanced LIGO for binaries of spinning, nonprecessing black h…
Spectral Cauchy Characteristic Extraction of strain, news and gravitational radiation flux
Casey J. Handmer, Béla Szilágyi, Jeffrey Winicour
We present a new approach for the Cauchy-characteristic extraction of gravitational radiation strain, news function, and the flux of the energy-momentum, supermomentum and angular…
Gravitational waveforms for neutron star binaries from binary black hole simulations
Kevin Barkett, Mark A. Scheel, Roland Haas +9
Gravitational waves from binary neutron star (BNS) and black hole/neutron star (BHNS) inspirals are primary sources for detection by the Advanced Laser Interferometer Gravitational…
Binary Neutron Stars with Arbitrary Spins in Numerical Relativity
Nick Tacik, Francois Foucart, Harald P. Pfeiffer +8
We present a code to construct initial data for binary neutron star systems in which the stars are rotating. Our code, based on a formalism developed by Tichy, allows for arbitrary…
Accuracy and precision of gravitational-wave models of inspiraling neutron star -- black hole binaries with spin: comparison with numerical relativity in the low-frequency regime
Prayush Kumar, Kevin Barkett, Swetha Bhagwat +5
Coalescing binaries of neutron stars (NS) and black holes (BH) are one of the most important sources of gravitational waves for the upcoming network of ground based detectors. Dete…
Improvements to the construction of binary black hole initial data
Serguei Ossokine, Francois Foucart, Harald P. Pfeiffer +2
Construction of binary black hole initial data is a prerequisite for numerical evolutions of binary black holes. This paper reports improvements to the binary black hole initial da…
Comparing Post-Newtonian and Numerical-Relativity Precession Dynamics
Serguei Ossokine, Michael Boyle, Lawrence E. Kidder +3
Binary black-hole systems are expected to be important sources of gravitational waves for upcoming gravitational-wave detectors. If the spins are not colinear with each other or wi…
Gauge Invariant Spectral Cauchy Characteristic Extraction
Casey J. Handmer, Béla Szilágyi, Jeffrey Winicour
We present gauge invariant spectral Cauchy characteristic extraction. We compare gravitational waveforms extracted from a head-on black hole merger simulated in two different gauge…
Spectral Characteristic Evolution: A New Algorithm for Gravitational Wave Propagation
Casey J. Handmer, Béla Szilágyi
We present a spectral algorithm for solving the full nonlinear vacuum Einstein field equations in the Bondi framework. Developed within the Spectral Einstein Code (SpEC), we demons…
Magnetic effects on the low-T/|W| instability in differentially rotating neutron stars
Curran D. Muhlberger, Fatemeh Hossein Nouri, Matthew D. Duez +6
Dynamical instabilities in protoneutron stars may produce gravitational waves whose observation could shed light on the physics of core-collapse supernovae. When born with sufficie…
A joint approach for reducing eccentricity and spurious gravitational radiation in binary black hole initial data construction
Fan Zhang, Béla Szilágyi
At the beginning of binary black hole simulations, there is a pulse of spurious radiation (or junk radiation) resulting from the initial data not matching astrophysical quasi-equil…
Periastron Advance in Spinning Black Hole Binaries: Gravitational Self-Force from Numerical Relativity
Alexandre Le Tiec, Alessandra Buonanno, Abdul H. Mroué +8
We study the general relativistic periastron advance in spinning black hole binaries on quasi-circular orbits, with spins aligned or anti-aligned with the orbital angular momentum,…
Error-analysis and comparison to analytical models of numerical waveforms produced by the NRAR Collaboration
Ian Hinder, Alessandra Buonanno, Michael Boyle +53
The Numerical-Relativity-Analytical-Relativity (NRAR) collaboration is a joint effort between members of the numerical relativity, analytical relativity and gravitational-wave data…
Final spin and radiated energy in numerical simulations of binary black holes with equal masses and equal, aligned or anti-aligned spins
Daniel A. Hemberger, Geoffrey Lovelace, Thomas J. Loredo +5
The behavior of merging black holes (including the emitted gravitational waves and the properties of the remnant) can currently be computed only by numerical simulations. This pape…
Dynamical Excision Boundaries in Spectral Evolutions of Binary Black Hole Spacetimes
Daniel A. Hemberger, Mark A. Scheel, Lawrence E. Kidder +4
Simulations of binary black hole systems using the Spectral Einstein Code (SpEC) are done on a computational domain that excises the regions inside the black holes. It is imperativ…
A geometrically motivated coordinate system for exploring spacetime dynamics in numerical-relativity simulations using a quasi-Kinnersley tetrad
Fan Zhang, Jeandrew Brink, Béla Szilágyi +1
We investigate the suitability and properties of a quasi-Kinnersley tetrad and a geometrically motivated coordinate system as tools for quantifying both strong-field and wave-zone…
The NINJA-2 catalog of hybrid post-Newtonian/numerical-relativity waveforms for non-precessing black-hole binaries
P. Ajith, Michael Boyle, Duncan A. Brown +45
The Numerical INJection Analysis (NINJA) project is a collaborative effort between members of the numerical relativity and gravitational wave data analysis communities. The purpose…
Simulations of Binary Black Hole Mergers Using Spectral Methods
Béla Szilágyi, Lee Lindblom, Mark A. Scheel
Several improvements in numerical methods and gauge choice are presented that make it possible now to perform simulations of the merger and ringdown phases of "generic" binary blac…
Unambiguous determination of gravitational waveforms from binary black hole mergers
C. Reisswig, N. T. Bishop, D. Pollney +1
Gravitational radiation is properly defined only at future null infinity ($\scri$), but in practice it is estimated from data calculated at a finite radius. We have used characteri…
Exact Solutions for the Intrinsic Geometry of Black Hole Coalescence
Luis Lehner, Nigel T. Bishop, Roberto Gómez +2
We describe the null geometry of a multiple black hole event horizon in terms of a conformal rescaling of a flat space null hypersurface. For the prolate spheroidal case, we show t…