556 citations · 1.3k across the 17 of their papers we have counts for
18 papers
Performance-Portable Numerical Relativity with AthenaK
Hengrui Zhu, Jacob Fields, Francesco Zappa +6
We present the numerical relativity module within AthenaK, an open source performance-portable astrophysics code designed for exascale computing applications. This module employs t…
Scattering and dynamical capture of two black holes: synergies between numerical and analytical methods
Simone Albanesi, Alireza Rashti, Francesco Zappa +6
We study initially unbound systems of two black holes using numerical relativity (NR) simulations performed with GR-Athena++. We focus on regions of the parameter space close to th…
Impact of moment-based, energy integrated neutrino transport on microphysics and ejecta in binary neutron star mergers
Pedro Luis Espino, David Radice, Francesco Zappa +2
We present an extensive study of the effects of neutrino transport in 3-dimensional general relativistic radiation hydrodynamics (GRHD) simulations of binary neutron star (BNS) mer…
GR-Athena++: General-relativistic magnetohydrodynamics simulations of neutron star spacetimes
William Cook, Boris Daszuta, Jacob Fields +5
We present the extension of GR-Athena++ to general-relativistic magnetohydrodynamics (GRMHD) for applications to neutron star spacetimes. The new solver couples the constrained tra…
Neutrino trapping and out-of-equilibrium effects in binary neutron star merger remnants
Pedro Luis Espino, Peter Hammond, David Radice +5
We study out-of-thermodynamic equilibrium effects in neutron star mergers with 3D general-relativistic neutrino-radiation large-eddy simulations. During merger, the cores of the ne…
Towards numerical-relativity informed effective-one-body waveforms for dynamical capture black hole binaries
Tomas Andrade, Juan Trenado, Simone Albanesi +10
Dynamical captures of black holes may take place in dense stellar media due to the emission of gravitational radiation during a close passage. Detection of such events requires det…
Numerical-Relativity-Informed Effective-One-Body model for Black-Hole-Neutron-Star Mergers with Higher Modes and Spin Precession
Alejandra Gonzalez, Rossella Gamba, Matteo Breschi +4
We present the first effective-one-body (EOB) model for generic-spins quasi-circular black-hole--neutron-star (BHNS) inspiral-merger-ringdown gravitational waveforms (GWs). Our mod…
Binary neutron star merger simulations with neutrino transport and turbulent viscosity: impact of different schemes and grid resolution
Francesco Zappa, Sebastiano Bernuzzi, David Radice +1
We present a systematic numerical relativity study of the impact of different treatment of microphysics and grid resolution in binary neutron star mergers. We consider series of si…
Second release of the CoRe database of binary neutron star merger waveforms
Alejandra Gonzalez, Francesco Zappa, Matteo Breschi +15
We present the second data release of gravitational waveforms from binary neutron star merger simulations performed by the Computational Relativity (CoRe) collaboration. The curren…
GRAthena++: puncture evolutions on vertex-centered oct-tree AMR
Boris Daszuta, Francesco Zappa, William Cook +3
Numerical relativity is central to the investigation of astrophysical sources in the dynamical and strong-field gravity regime, such as binary black hole and neutron star coalescen…
Mapping dynamical ejecta and disk masses from numerical relativity simulations of neutron star mergers
Vsevolod Nedora, Federico Schianchi, Sebastiano Bernuzzi +6
We present fitting formulae for the dynamical ejecta properties and remnant disk masses from the largest to date sample of numerical relativity simulations. The considered data inc…
Accretion-induced prompt black hole formation in asymmetric neutron star mergers, dynamical ejecta and kilonova signals
Sebastiano Bernuzzi, Matteo Breschi, Boris Daszuta +9
We present new numerical relativity results of neutron star mergers with chirp mass and mass ratios and using finite-temperature equations of state…
Inferring prompt black-hole formation in neutron star mergers from gravitational-wave data
Michalis Agathos, Francesco Zappa, Sebastiano Bernuzzi +3
The gravitational-wave GW170817 is associated to the inspiral phase of a binary neutron star coalescence event. The LIGO-Virgo detectors sensitivity at high frequencies was not suf…
kiloHertz gravitational waves from binary neutron star remnants: time-domain model and constraints on extreme matter
Matteo Breschi, Sebastiano Bernuzzi, Francesco Zappa +4
The remnant star of a neutron star merger is an anticipated loud source of kiloHertz gravitational waves that conveys unique information on the equation of state of hot matter at e…
Black-hole remnants from black-hole--neutron-star mergers
Francesco Zappa, Sebastiano Bernuzzi, Francesco Pannarale +2
Observations of gravitational waves and their electromagnetic counterparts may soon uncover the existence of coalescing compact binary systems formed by a stellar-mass black hole a…
CoRe database of binary neutron star merger waveforms and its application in waveform development
Tim Dietrich, David Radice, Sebastiano Bernuzzi +7
We present the Computational Relativity CoRe collaboration's public database of gravitational waveforms from binary neutron star mergers. The database currently contains 367 wavefo…
GW170817: Joint Constraint on the Neutron Star Equation of State from Multimessenger Observations
David Radice, Albino Perego, Francesco Zappa +1
Gravitational waves detected from the binary neutron star (NS) merger GW170817 constrained the NS equation of state by placing an upper bound on certain parameters describing the b…
Gravitational-wave luminosity of binary neutron stars mergers
Francesco Zappa, Sebastiano Bernuzzi, David Radice +2
We study the gravitational-wave peak luminosity and radiated energy of quasicircular neutron star mergers using a large sample of numerical relativity simulations with different bi…