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astro-ph.SR2025
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
Massive Black Hole Seed Formation in Strong X-ray Environments at High Redshift
Kazutaka Kimura, Kohei Inayoshi, Kazuyuki Omukai
Direct collapse of pristine gas in early galaxies is a promissing pathway for forming supermassive black holes (BHs) powering active galactic nuclei (AGNs) at the epoch of reioniza…