149 citations · 499 across the 21 of their papers we have counts for
6 papers · 1 filter
Binary Black Hole Waveforms from High-Resolution GR-Athena++ Simulations
Alireza Rashti, Rossella Gamba, Koustav Chandra +4
The detection and subsequent inference of binary black hole signals rely heavily on the accuracy of the waveform model employed. In the highly non-linear, dynamic, and strong-field…
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…
Performance-Portable Binary Neutron Star Mergers with AthenaK
Jacob Fields, Hengrui Zhu, David Radice +4
We introduce an extension to the AthenaK code for general-relativistic magnetohydrodynamics (GRMHD) in dynamical spacetimes using a 3+1 conservative Eulerian formulation. Like the…
Numerical relativity simulations of compact binaries: comparison of cell- and vertex-centered adaptive meshes
Boris Daszuta, William Cook, Peter Hammond +4
Given the compact binary evolution problem of numerical relativity, in the finite-difference, block-based, adaptive mesh refinement context, choices must be made on how evolved fie…
GR-Athena++: magnetohydrodynamical evolution with dynamical space-time
Boris Daszuta, William Cook
We present a self-contained overview of GR-Athena++, a general-relativistic magnetohydrodynamics (GRMHD) code, that incorporates treatment of dynamical space-time, based on the rec…
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…