69 citations · 297 across the 14 of their papers we have counts for
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From Dense Gas Clouds to Supermassive Black Hole Seeds: Hybrid Hydro/Direct -body Simulations of Runaway Collision-driven Intermediate-mass Black Hole Formation
Eunwoo Chung, Yongseok Jo, Ji-hoon Kim +2
A population of dense stellar systems at high redshift has recently been uncovered by the JWST. To investigate the formation of supermassive black hole (SMBH) seeds in these dense…
Evolution of Nuclear Star Cluster in Dwarf Galaxy through Mergers and In-Situ Star Formation
Yongseok Jo, Minyong Jung, Greg L. Bryan +3
Nuclear Star Clusters (NSCs) are dense stellar systems located at the centers of galaxies. Employing Enzo-Abyss, which integrates hydrodynamics with a direct N-body solver, we intr…
Evolution of Star Cluster Within Galaxy using Self-consistent Hybrid Hydro/N-body Simulation
Yongseok Jo, Seoyoung Kim, Ji-hoon Kim +1
We introduce a GPU-accelerated hybrid hydro/N-body code (Enzo-N) designed to address the challenges of concurrently simulating star clusters and their parent galaxies. This task ha…
Dark Matter Deficient Galaxies Produced Via High-velocity Galaxy Collisions In High-resolution Numerical Simulations
Eun-jin Shin, Minyong Jung, Goojin Kwon +4
The recent discovery of diffuse dwarf galaxies that are deficient in dark matter appears to challenge the current paradigm of structure formation in our Universe. We describe the n…
High-redshift Galaxy Formation with Self-consistently Modeled Stars and Massive Black Holes: Stellar Feedback and Quasar Growth
Ji-hoon Kim, John H. Wise, Tom Abel +3
As computational resolution of modern cosmological simulations reach ever so close to resolving individual star-forming clumps in a galaxy, a need for "resolution-appropriate" phys…
Machine-assisted Semi-Simulation Model (MSSM): Estimating Galactic Baryonic Properties from their Dark Matter using a Machine Trained on Hydrodynamic Simulations
Yongseok Jo, Ji-hoon Kim
We present a pipeline to estimate baryonic properties of a galaxy inside a dark matter (DM) halo in DM-only simulations using a machine trained on high-resolution hydrodynamic simu…