3 papers
astro-ph.SR2026
An Explicit M1 Radiation-hydrodynamics Scheme for 3D Protostellar Evolution
Kazutaka Kimura, Kazuyuki Sugimura, Takashi Hosokawa +2
We present a radiation-hydrodynamics (RHD) scheme that enables 3D simulations resolving both protostellar interiors and their surrounding accretion flows within a single framework,…
astro-ph.GA2025
Unveiling the Ionized and Neutral ISM at z > 10 : The Origin of [O III] /[C II] Ratios from a Sub-parsec Resolution Radiative Transfer Simulation
Yurina Nakazato, Kazuyuki Sugimura, Akio K. Inoue +1
Recent multi-wavelength observations by JWST and ALMA are unveiling both ionized and neutral ISM components in high-redshift () galaxies. In this work, we investigate the orig…
astro-ph.GA2025
Neural-Network Chemical Emulator for First-Star Formation: Robust Iterative Predictions over a Wide Density Range
Sojun Ono, Kazuyuki Sugimura
We present a neural-network emulator for the thermal and chemical evolution in Population III star formation. The emulator accurately reproduces the thermochemical evolution over a…