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astro-ph.GA2026
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…
astro-ph.GA2025
Formation and Evolution of Compact Binaries Containing Intermediate Mass Black Holes in Dense Star Clusters`
Seungjae Lee, Hyung Mok Lee, Ji-hoon Kim +3
We investigate the evolution of star clusters containing intermediate-mass black hole (IMBH) of to , focusing on the formation and evolution of IMBH-s…
astro-ph.GA2024
Multiple Beads-on-a-string: Dark Matter-Deficient Galaxy Formation in a Mini-bullet Satellite-satellite Galaxy Collision
Joohyun Lee, Eun-jin Shin, Ji-hoon Kim +2
Dark matter-deficient galaxies (DMDGs) discovered in the survey of ultra-diffuse galaxies (UDGs), in apparent conflict with standard CDM, may be produced by high-velocity galaxy-ga…