18 papers
Orbital Migration of Interacting Stellar Mass Black Holes in Disks around Supermassive Black Holes. III. Mass Distribution of Hierarchical Mergers
Katherine L. Gonglewski, Amy Secunda, Mordecai-Mark Mac Low +3
Active galactic nucleus (AGN) disks are a promising location for the formation of binary black holes (BBHs) that will merge on relatively short timescales and be detected by LIGO-V…
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…
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,…
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…
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…
Tidal Resonance in Binary Neutron Star Inspirals: A High-Precision Study in Numerical Relativity
Hao-Jui Kuan, Kenta Kiuchi, Masaru Shibata
We investigate the tidal resonance of the fundamental (-)mode in spinning neutron stars, robustly tracing the onset of the excitation to its saturation, using numerical relativi…