1.1k citations · 3.4k across the 16 of their papers we have counts for
16 papers
Dark Matter Deficient Galaxies And Their Member Star Clusters Form Simultaneously During High-velocity Galaxy Collisions In 1.25 pc Resolution Simulations
Joohyun Lee, Eun-jin Shin, Ji-hoon Kim
How diffuse dwarf galaxies that are deficient in dark matter -- such as NGC1052-DF2 and NGC1052-DF4 -- formed remains a mystery. Along with their luminous member globular clusters…
How Metals Are Transported In And Out Of A Galactic Disk: Dependence On The Hydrodynamic Schemes In Numerical Simulations
Eun-jin Shin, Ji-hoon Kim, Boon Kiat Oh
Metallicity is a fundamental probe for understanding the baryon physics in a galaxy. Since metals are intricately associated with radiative cooling, star formation, and feedback, r…
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…
Self-consistent proto-globular cluster formation in cosmological simulations of high-redshift galaxies
Xiangcheng Ma, Michael Y. Grudić, Eliot Quataert +7
We report the formation of bound star clusters in a sample of high-resolution cosmological zoom-in simulations of z>5 galaxies from the FIRE project. We find that bound clusters pr…
Formation of Globular Cluster Candidates in Merging Proto-galaxies at High Redshift: A View from the FIRE Cosmological Simulations
Ji-hoon Kim, Xiangcheng Ma, Michael Y. Grudić +7
Using a state-of-the-art cosmological simulation of merging proto-galaxies at high redshift from the FIRE project, with explicit treatments of star formation and stellar feedback i…
FIRE-2 Simulations: Physics versus Numerics in Galaxy Formation
Philip F Hopkins, Andrew Wetzel, Dusan Keres +25
The Feedback In Realistic Environments (FIRE) project explores feedback in cosmological galaxy formation simulations. Previous FIRE simulations used an identical source code (FIRE-…
Ab initio Simulations of a Supernova Driven Galactic Dynamo in an Isolated Disk Galaxy
Iryna Butsky, Jonathan Zrake, Ji-hoon Kim +2
We study the magnetic field evolution of an isolated spiral galaxy, using isolated Milky Way-mass galaxy formation simulations and a novel prescription for magnetohydrodynamic (MHD…
The AGORA High-Resolution Galaxy Simulations Comparison Project. II: Isolated Disk Test
Ji-hoon Kim, Oscar Agertz, Romain Teyssier +40
Using an isolated Milky Way-mass galaxy simulation, we compare results from 9 state-of-the-art gravito-hydrodynamics codes widely used in the numerical community. We utilize the in…
Reconciling dwarf galaxies with LCDM cosmology: Simulating a realistic population of satellites around a Milky Way-mass galaxy
Andrew R. Wetzel, Philip F. Hopkins, Ji-hoon Kim +3
Low-mass "dwarf" galaxies represent the most significant challenges to the cold dark matter (CDM) model of cosmological structure formation. Because these faint galaxies are (best)…
Enzo: An Adaptive Mesh Refinement Code for Astrophysics
The Enzo Collaboration, Greg L. Bryan, Michael L. Norman +26
This paper describes the open-source code Enzo, which uses block-structured adaptive mesh refinement to provide high spatial and temporal resolution for modeling astrophysical flui…
How Does the Surface Density and Size of Disk Galaxies Measured in Hydrodynamic Simulations Correlate with the Halo Spin Parameter?
Ji-hoon Kim, Jounghun Lee
Late-type low surface brightness galaxies (LSBs) are faint disk galaxies with central maximum stellar surface densities below 100 Msun/pc^2. The currently favored scenario for thei…
Dwarf Galaxies with Ionizing Radiation Feedback. I: Escape of Ionizing Photons
Ji-hoon Kim, Mark R. Krumholz, John H. Wise +3
We describe a new method for simulating ionizing radiation and supernova feedback in the analogues of low-redshift galactic disks. In this method, which we call star-forming molecu…
Galaxy Formation with Self-consistently Modeled Stars and Massive Black Holes. I: Feedback-regulated Star Formation and Black Hole Growth
Ji-hoon Kim, John H. Wise, Marcelo A. Alvarez +1
There is mounting evidence for the coevolution of galaxies and their embedded massive black holes (MBHs) in a hierarchical structure formation paradigm. To tackle the nonlinear pro…
Galaxy Mergers with Adaptive Mesh Refinement: Star Formation and Hot Gas Outflow
Ji-hoon Kim, John H. Wise, Tom Abel
In hierarchical structure formation, merging of galaxies is frequent and known to dramatically affect their properties. To comprehend these interactions high-resolution simulations…