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From the 1 of 12 linked papers with an AI index.

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14 papers

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

The paper extends the BAM numerical‑relativity code to include resistive general‑relativistic magnetohydrodynamics, validates it with benchmark tests, and applies it to isolated an…

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…

astro-ph.HE2026

Convective stability analysis of massive neutron stars formed in binary mergers

Yong Gao, Kota Hayashi, Kenta Kiuchi +3

We perform fully general-relativistic hydrodynamics simulations of binary neutron star mergers over post-merger to investigate the dynamics of remnant massive neutron…