96 citations · 335 across the 37 of their papers we have counts for
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Connecting GRBs from Binary Neutron Star Mergers to Nuclear Properties of Neutron Stars
Rosalba Perna, Ore Gottlieb, Estuti Shukla +1
The fate of the binary neutron star (NS) merger remnants hinges sensitively upon the NS equation of state and the threshold mass, , that separates a long-lived from a s…
Open-source library for performance-portable neutrino reaction rates: Application to neutron star mergers
Leonardo Chiesa, Maitraya Bhattacharyya, Filippo Mazzini +3
A realistic and detailed description of neutrinos in binary neutron star (BNS) mergers is essential to build reliable models of such systems. To this end, we present BNS_NURATES, a…
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…
Gamma-ray bursts and kilonovae from the accretion-induced collapse of white dwarfs
Patrick Chi-Kit Cheong, Tetyana Pitik, Luís Felipe Longo Micchi +1
We present the first seconds-long 2D general relativistic neutrino magnetohydrodynamic simulations of accretion-induced collapse (AIC) in rapidly rotating, strongly magnetized whit…
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…
Long-lived neutron-star remnants from asymmetric binary neutron star mergers: element formation, kilonova signals and gravitational waves
Sebastiano Bernuzzi, Fabio Magistrelli, Maximilian Jacobi +3
We present 3D general-relativistic neutrino-radiation hydrodynamics simulations of two asymmetric binary neutron star mergers producing long-lived neutron stars remnants and spanni…
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…
Tight bound on neutron-star radius with quasiperiodic oscillations in short gamma-ray bursts
Victor Guedes, David Radice, Cecilia Chirenti +1
Quasiperiodic oscillations (QPOs) have been recently discovered in the short gamma-ray bursts (GRBs) 910711 and 931101B. Their frequencies are consistent with those of the quasirad…
Cocoon shock breakout emission from binary neutron star mergers
Eduardo M. Gutiérrez, Mukul Bhattacharya, David Radice +2
Shock breakout emission is among the first observable signals in a wide variety of astrophysical phenomena, including neutron star (NS) mergers, and it can be the dominant componen…
Neutron stars and the dense matter equation of state: from microscopic theory to macroscopic observations
Katerina Chatziioannou, H. Thankful Cromartie, Stefano Gandolfi +4
The past years have witnessed tremendous progress in understanding the properties of neutron stars and of the dense matter in their cores, made possible by electromagnetic observat…
General relativistic hydrodynamic simulations of binary strange star mergers
Francesco Grippa, Aviral Prakash, Domenico Logoteta +2
We perform fully general-relativistic simulations of binary strange star mergers considering two different approaches for thermal effects. The first uses a cold equation of state (…
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…
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…
Element formation in radiation-hydrodynamics simulations of kilonovae
Fabio Magistrelli, Sebastiano Bernuzzi, Albino Perego +1
Understanding the details of -process nucleosynthesis in binary neutron star mergers (BNSM) ejecta is key to interpreting kilonova observations and identifying the role of BNSMs…
Turbulence modelling in neutron star merger simulations
David Radice, Ian Hawke
Observations of neutron star mergers have the potential to unveil detailed physics of matter and gravity in regimes inaccessible by other experiments. Quantitative comparisons to t…
Geometric and thermodynamic characterization of binary neutron star accretion discs
Alessandro Camilletti, Albino Perego, Federico Maria Guercilena +2
Accretion disks formed in binary neutron star mergers play a central role in many astrophysical processes of interest, including the launching of relativistic jets or the ejection…
Bayesian inference of multimessenger astrophysical data: Joint and coherent inference of gravitational waves and kilonovae
Matteo Breschi, Rossella Gamba, Gregorio Carullo +4
We present a Bayesian framework for joint and coherent analyses of multimessenger binary neutron star signals. The method, implemented in our bajes infrastructure, incorporates a j…