5 papers
Perturbative Hyperboloidal Extraction of Gravitational Waves in 3+1 Numerical Relativity
Sebastiano Bernuzzi, Joan Fontbuté, Simone Albanesi +1
We present a framework to propagate to null infinity gravitational waves computed at timelike worldtubes in the interior of a 3+1 (Cauchy) numerical relativity simulations. In our…
Covariant and Gauge-invariant Metric-based Gravitational-waves Extraction in Numerical Relativity
Joan Fontbuté, Sebastiano Bernuzzi, Simone Albanesi +5
We revisit the problem of gravitational-wave extraction in numerical relativity with gauge-invariant metric perturbation theory of spherical spacetimes. Our extraction algorithm al…
Gravitational scattering of two neutron stars
Joan Fontbuté, Sebastiano Bernuzzi, Piero Rettegno +2
We present the first numerical relativity simulations of the gravitational scattering of two neutron stars. Constraint-satisfying initial data for two equal-mass nonspinning sequen…
Effective-one-body modeling for generic compact binaries with arbitrary orbits
Simone Albanesi, Rossella Gamba, Sebastiano Bernuzzi +3
We present the first unified model for the general relativistic dynamics and gravitational radiation of generic compact binaries. TEOBResumS-Dalí is a model based on the effective-…
A numerical-relativity surrogate model for hyperbolic encounters of black holes: challenges in parameter estimation
Joan Fontbuté, Tomas Andrade, Raimon Luna +5
We present a surrogate numerical-relativity model for close hyperbolic black-hole encounters with equal masses and spins aligned with the orbital momentum. Our model, generated in…