activity
20042026
most citedProduction of all the r-process nuclides in the dynamical ejecta of neutron star mergers

624 citations · 8.4k across the 102 of their papers we have counts for

collaborators

102 papers

astro-ph.HE2026

A first-principles binary neutron star merger model of GW170817, GRB170817A, and AT2017gfo

Kenta Kiuchi, Sho Fujibayashi, Kota Hayashi +6

The multimessenger observation of the binary neutron star merger event GW170817, associated with its electromagnetic counterparts GRB170817A and AT2017gfo, marked a milestone in as…

astro-ph.HE2026

Extending the infrastructure of the BAM code towards resistive general-relativistic magnetohydrodynamics: tests and first applications

Matthew Beaudoin, Maximilano Ujevic, Ramon Jaeger +4

Many astrophysical phenomena, including pulsars and short gamma-ray bursts, are associated with the extremely strong magnetic fields present in neutron stars and neutron star merge…

astro-ph.HE2026

SACRA-K: A Performance-Portable Numerical Relativity Code with Kokkos

Ming-Zhe Han, Kenta Kiuchi, Masaru Shibata

We present SACRA-K (SimulAtor for Compact objects in Relativistic Astrophysics with Kokkos), a performance-portable numerical relativity code ported from the Fortran code SACRA-MPI…

astro-ph.HE2026

Subsolar-mass binary mergers of strange stars and neutron stars: gravitational waves and ejecta

Yong Gao, Ming-Zhe Han, Kenta Kiuchi +3

We present the first numerical-relativity simulations of subsolar-mass binary strange star (SS) mergers and compare with binary neutron star (NS) mergers across equations of state,…

astro-ph.HE2026

Implementation of multi-grid Poisson solver in numerical relativity and its application to gravitational collapse of massive star

Kenta Kiuchi, Hirotada Okawa

We develop a new grid-based multi-grid Poisson solver in numerical relativity. We report the performance of the multi-grid Poisson solver in the initial value problems for two-punc…

astro-ph.HE2026

A magnetar formation in binary neutron star merger

Kenta Kiuchi, Alexis Reboul-Salze, Yuichiro Sekiguchi +1

We conduct a global general relativistic neutrino-radiation-transfer magnetohydrodynamics simulation of a - binary neutron star with the unprecedented spatial re…