96 citations · 335 across the 37 of their papers we have counts for
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A Hybrid Neural Network Emulator for M1 Neutrino Reaction Rates in Binary Neutron Star Merger Simulations
Yi Qiu, David Radice, Raffaele Ferrari +1
We present a neural network emulator for the bns_nurates library, which computes neutrino reaction rates used in binary neutron star merger simulations. Following a hybrid strategy…
Puncture Evolution with Physics-Informed Neural Networks
Estuti Shukla, Ashwin Suriyanarayanan, David Radice +2
We investigate the application of physics-informed neural networks (PINNs) to solve the vacuum Einstein equations in spherical symmetry. Our neural network architecture is designed…
Finite-Solid-Angle Boltzmann Radiation Transport on Dynamical Spacetimes in AthenaK
Hengrui Zhu, Alexander J. Dittmann, Lizhong Zhang +3
We extend the finite-solid-angle general relativistic radiation transport method of C. J. White et al. (2023) to time-dependent spacetimes represented in ADM form. This Valencia-ty…
Gravitational Wave Modeling of White-Dwarf--Compact-Object Binaries and Observational Outlook
Tristan S. Weaver, David Radice, Donghui Jeong +1
We investigate the end stages of circular white-dwarf--compact-object binaries by developing a novel integrator implementing mass transfer and 2.5-order Post-Newtonian kinematics.…
Transport Properties of the MRI in Differentially Rotating Neutron Stars
Harshraj Bandyopadhyay, Peter Hammond, David Radice
We perform three-dimensional, high-resolution, general-relativistic magnetohydrodynamics (GRMHD) simulations of the magnetorotational instability (MRI) in differentially rotating n…
High-Density Sound Speed and Post-Merger Dynamics
John Stroud, David Radice, Sanjay Reddy
The density dependence of the speed of sound in cold neutron star matter remains poorly constrained and is central to determining the high-density equation of state (EOS). While bi…
Turbulent Dynamo Action in Binary Neutron Star Mergers
Eduardo M. Gutiérrez, David Radice, Jacob Fields +1
We perform general-relativistic magnetohydrodynamics zoom-in simulations of the merger of two neutron stars starting with pulsar-like realistic initial magnetic field. We employ un…
Exploring Composition Mixing in Kilonova Ejecta with Ray-by-ray Simulations
Ruocheng Zhai, David Radice, Fabio Magistrelli +2
Binary neutron star merger (BNSM) ejecta are considered a primary repository of -process nucleosynthesis and a source of the observed heavy-element abundances. We implement comp…