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Reducing orbital eccentricity of precessing black-hole binaries
Alessandra Buonanno, Lawrence E. Kidder, Abdul H. Mroué +2
Building initial conditions for generic binary black-hole evolutions without initial spurious eccentricity remains a challenge for numerical-relativity simulations. This problem ca…
Black hole-neutron star mergers: effects of the orientation of the black hole spin
Francois Foucart, Matthew D. Duez, Lawrence E. Kidder +1
The spin of black holes in black hole-neutron star (BHNS) binaries can have a strong influence on the merger dynamics and the postmerger state; a wide variety of spin magnitudes an…
Spectral methods for the wave equation in second-order form
Nicholas W. Taylor, Lawrence E. Kidder, Saul A. Teukolsky
Current spectral simulations of Einstein's equations require writing the equations in first-order form, potentially introducing instabilities and inefficiencies. We present a new p…
Measuring orbital eccentricity and periastron advance in quasi-circular black hole simulations
Abdul H. Mroué, Harald P. Pfeiffer, Lawrence E. Kidder +1
We compare different methods of computing the orbital eccentricity of quasi-circular binary black hole systems using the orbital variables and gravitational wave phase and frequenc…
Hyperboloidal evolution of test fields in three spatial dimensions
Anil Zenginoglu, Lawrence E. Kidder
We present the numerical implementation of a clean solution to the outer boundary and radiation extraction problems within the 3+1 formalism for hyperbolic partial differential equ…
Effective-one-body waveforms calibrated to numerical relativity simulations: coalescence of non-precessing, spinning, equal-mass black holes
Yi Pan, Alessandra Buonanno, Luisa T. Buchman +4
We present the first attempt at calibrating the effective-one-body (EOB) model to accurate numerical-relativity simulations of spinning, non-precessing black-hole binaries. Alignin…