181 citations · 1.1k across the 29 of their papers we have counts for
30 papers
On the Effects of Local Environment on Active Galactic Nucleus (AGN) in the Horizon Run 5 Simulation
Ankit Singh, Changbom Park, Ena Choi +6
We use the Horizon Run 5 cosmological simulation to study the effect of galaxy intrinsic properties and the local environment on AGNs characterized by their threshold of the accret…
Low-Surface-Brightness Galaxies are missing in the observed Stellar Mass Function
Juhan Kim, Jaehyun Lee, Clotilde Laigle +8
We investigate the impact of the surface brightness (SB) limit on the galaxy stellar mass functions (GSMFs) using mock surveys generated from the Horizon Run 5 (HR5) simulation. We…
Mesoscopic transport in KSTAR plasmas: avalanches and the staircase
Minjun J. Choi, Jae-Min Kwon, Lei Qi +18
The self-organization is one of the most interesting phenomena in the non-equilibrium complex system, generating ordered structures of different sizes and durations. In tokamak pla…
Simulating Jellyfish Galaxies: A Case Study for a Gas-Rich Dwarf Galaxy
Jaehyun Lee, Taysun Kimm, Jérémy Blaizot +5
We investigate the formation of jellyfish galaxies using radiation-hydrodynamic simulations of gas-rich dwarf galaxies with a multi-phase interstellar medium (ISM). We find that th…
Formation and Morphology of the First Galaxies in the Cosmic Morning
Changbom Park, Jaehyun Lee, Juhan Kim +8
We investigate the formation and morphological evolution of the first galaxies in the cosmic morning () using the Horizon Run 5 (HR5) simulation. For galaxi…
Stochastic fluctuation and transport of tokamak edge plasmas with the resonant magnetic perturbation field
Minjun J. Choi, Jae-Min Kwon, Juhyung Kim +17
We present that a statistical method known as the Complexity-Entropy analysis is useful to characterize a state of plasma turbulence and flux in the resonant magnetic perturbation…
Dual Effects of Ram Pressure on Star Formation in Multi-phase Disk Galaxies with Strong Stellar Feedback
Jaehyun Lee, Taysun Kimm, Harley Katz +3
We investigate the impact of ram pressure stripping due to the intracluster medium (ICM) on star-forming disk galaxies with a multi-phase interstellar medium (ISM) maintained by st…
YZiCS: On the Mass Segregation of Galaxies in Clusters
Seonwoo Kim, Emanuele Contini, Hoseung Choi +5
Mass segregation, a tendency of more massive galaxies being distributed closer to the cluster center, is naturally expected from dynamical friction, but its presence is still contr…
The Dust-to-Gas Ratio and the Role of Radiation Pressure in Luminous, Obscured Quasars
Hyunsung D. Jun, Roberto J. Assef, Christopher M. Carroll +5
The absence of high Eddington ratio, obscured Active Galactic Nuclei (AGN) in local () samples of moderate luminosity AGN has generally been explained to result from…
Compact elliptical galaxies in different local environments: a mixture of galaxies with different origins?
Suk Kim, Hyunjin Jeong, Soo-Chang Rey +4
We present the stellar populations of 138 compact elliptical galaxies (cEs) in the redshift range of using the Sloan Digital Sky Survey (SDSS) DR12. Our cEs are divided…
The Horizon Run 5 Cosmological Hydrodynamic Simulation: Probing Galaxy Formation from Kilo- to Giga-parsec Scales
Jaehyun Lee, Jihye Shin, Owain N. Snaith +12
Horizon Run 5 (HR5) is a cosmological hydrodynamical simulation which captures the properties of the Universe on a Gpc scale while achieving a resolution of 1kpc. Inside the simula…
Cosmic CARNage II: the evolution of the galaxy stellar mass function in observations and galaxy formation models
Rachel Asquith, Frazer R. Pearce, Omar Almaini +24
We present a comparison of the observed evolving galaxy stellar mass functions with the predictions of eight semi-analytic models and one halo occupation distribution model. While…
Wobbling galaxy spin axes in dense environments
Jaehyun Lee, Suk Kim, Hyunjin Jeong +7
The orientation of galaxy spin vectors within the large scale structure has been considered an important test of our understanding of structure formation. We investigate the angula…
Discovery of the kinematic alignment of early-type galaxies in the Virgo cluster
Suk Kim, Hyunjin Jeong, Jaehyun Lee +4
Using the kinematic position angles (PA_kin), an accurate indicator for the spin axis of a galaxy, obtained from the ATLAS3D integral-field-unit (IFU) spectroscopic data, we discov…
Experimental evidence of the non-diffusive avalanche-like electron heat transport events and their dynamical interaction with the shear flow structure
Minjun J. Choi, Hogun Jhang, J. -M. Kwon +12
We present experimental observations suggesting that the non-diffusive avalanche-like events are a prevalent and universal process of the electron turbulent heat transport in tokam…
Cosmic CARNage I: on the calibration of galaxy formation models
Alexander Knebe, Frazer R. Pearce, Violeta Gonzalez-Perez +31
We present a comparison of nine galaxy formation models, eight semi-analytical and one halo occupation distribution model, run on the same underlying cold dark matter simulation (c…
nIFTy Cosmology: the clustering consistency of galaxy formation models
Arnau Pujol, Ramin A. Skibba, Enrique Gaztañaga +35
We present a clustering comparison of 12 galaxy formation models (including Semi-Analytic Models (SAMs) and Halo Occupation Distribution (HOD) models) all run on halo catalogues an…
Formation and assembly history of stellar components in galaxies as a function of stellar and halo mass
Jaehyun Lee, Sukyoung K. Yi
Galaxy mass assembly is an end product of structure formation in the CDM cosmology. As an extension of Lee \& Yi (2013), we investigate the assembly history of stellar component…
The Preferential Tidal Stripping of Dark Matter versus Stars in Galaxies
Rory Smith, Hoseung Choi, Jaehyun Lee +3
Using high resolution hydrodynamical cosmological simulations, we conduct a comprehensive study of how tidal stripping removes dark matter and stars from galaxies. We find that dar…
Timing the evolution of quiescent and star-forming local galaxies
Camilla Pacifici, Sree Oh, Kyuseok Oh +2
Constraining the star formation histories (SFHs) of individual galaxies is crucial to understanding the mechanisms that regulate their evolution. Here, we combine multi-wavelength…
Demographics of Isolated Galaxies Along the Hubble Sequence
Hong-geun Khim, Jongwon Park, Seong-Woo Seo +3
Isolated galaxies in low-density regions are significant in the sense that they are least affected by the hierarchical pattern of galaxy growth, and interactions with perturbers, a…
nIFTy Cosmology: Comparison of Galaxy Formation Models
Alexander Knebe, Frazer R. Pearce, Peter A. Thomas +33
We present a comparison of 14 galaxy formation models: 12 different semi-analytical models and 2 halo-occupation distribution models for galaxy formation based upon the same cosmol…
Stiffer EoS for Compact Star with New Scaling Law
Kyungmin Kim, T. T. S. Kuo, Hyun Kyu Lee +2
We present in this paper a simple and unequivocal prediction on the deformation of the compact star, that will be measured in gravity waves, with an EoS obtained in renormailzation…
Sussing Merger Trees : The Impact of Halo Merger Trees on Galaxy Properties in a Semi-Analytic Model
Jaehyun Lee, Sukyoung K. Yi, Pascal J. Elahi +13
A halo merger tree forms the essential backbone of a semi-analytic model for galaxy formation and evolution. Recent studies have pointed out that extracting merger trees from numer…