25 citations · 95 across the 20 of their papers we have counts for
20 papers
New classification method for the dynamical state of galaxy clusters with a Gaussian mixture model
Hyowon Kim, Marco Canducci, Rory Smith +5
Galaxy clusters are the largest gravitationally bound systems, and they continue their growth through mergers in a hierarchical ΛCDM Universe. Therefore, we can describe the merger…
K-DRIFT Science Theme: Galaxies in the Faint Universe
Woowon Byun, Yongmin Yoon, Jongwan Ko +17
Low-surface-brightness (LSB) structures serve as evidence of the intricate mass assembly of galaxies, and dedicatedly studying them promises to give us profound insights into the e…
Convolutional Neural Networks for classifying galaxy mergers: Can faint tidal features aid in classifying mergers?
Yeonkyung Lee, Hyunmi Song, Jihye Shin +3
Identifying mergers from observational data has been a crucial aspect of studying galaxy evolution and formation. Tidal features, typically fainter than 26 …
K-DRIFT Science Theme: Galactic Cirrus Clouds and Circumgalactic Medium
Kwang-il Seon, Jaehyun Lee, Jongwan Ko +8
In this paper, we review the extended halo material and the circumgalactic medium (CGM), including both dust and gas, and discuss promising science cases that could be realized usi…
K-DRIFT Science Theme: Illuminating the Next Era of Galaxy Cluster Science
Jaewon Yoo, Kyungwon Chun, Jongwan Ko +13
The KASI Deep Rolling Imaging Fast Telescope (K-DRIFT) is a pioneering instrument designed to explore low-surface-brightness (LSB) phenomena. This white paper presents a compelling…
Direct observational evidence that higher-luminosity type 1 active galactic nuclei are most commonly triggered by galaxy mergers
Yongmin Yoon, Yongjung Kim, Dohyeong Kim +2
We examine the connection between galaxy mergers and the triggering of active galactic nuclei (AGNs) using a sample of 614 type 1 AGNs at , along with a control sample of i…
K-DRIFT: Unveiling New Imagery of the Hidden Universe
Jongwan Ko, Woowon Byun, Kwang-Il Seon +31
Low-surface-brightness (LSB) structures play a crucial role in understanding galaxy evolution by providing significant insights into galaxy interactions, the histories of mass asse…
The Role of Pre-Processing in Tidal Feature Formation within Galaxy Clusters
Kyungwon Chun, Jihye Shin, Jongwan Ko +3
We investigate the formation of tidal features, such as tidal tails, streams, and shell-like structures, composed of stars stripped from satellites within galaxy clusters. For this…
Dynamical Evolution of Substructured Star Clusters at 3 kpc from the Galactic Center
So-Myoung Park, Jihye Shin, Sang-Hyun Chun +3
We investigate the evolution of initial fractal clusters at 3 kpc from the Galactic Center (GC) of the Milky Way and show how red supergiant clusters (RSGCs)-like objects, which ar…
Formation channels of the diffuse lights in the groups and clusters over time
Kyungwon Chun, Jihye Shin, Jongwan Ko +2
We explore the formation of the intragroup light (IGL) and intracluster light (ICL), representing diffuse lights within groups and clusters, since . For this, we perform mul…
New observational recipes for measuring dynamical state of galaxy clusters
Hyowon Kim, Rory Smith, Jongwan Ko +4
During cluster assembly, a cluster's virialization process leaves behind signatures that can provide information on its dynamical state. However, no clear consensus yet exists on t…
Shell-type Tidal Features Are More Frequently Detected in Slowly Rotating Early-type Galaxies than Stream- and Tail-type Features
Yongmin Yoon, Jongwan Ko, Haeun Chung +2
To enhance our understanding of the impact of galaxy mergers on the kinematics of early-type galaxies (ETGs), we examine differences in specific stellar angular momentum within the…
Galaxy Quenching with Mass Growth History of Galaxy Groups and Clusters: The Importance of Post-Processing
So-Myoung Park, Kyungwon Chun, Jihye Shin +5
We investigate the fraction of quenched satellite galaxies in host galaxy groups and clusters using TNG300 in the IllustrisTNG cosmological magnetohydrodynamical simulations. Simul…
The formation of the brightest cluster galaxy and intracluster light in cosmological N-body simulations with the Galaxy Replacement Technique
Kyungwon Chun, Jihye Shin, Rory Smith +2
We investigate the formation channels of the intracluster light (ICL) and the brightest cluster galaxy (BCG) in clusters at . For this, we perform multi-resolution cosmologica…
Properties of Globular Clusters in Galaxy Clusters: Sensitivity from the Formation and Evolution of Globular Clusters
So-Myoung Park, Jihye Shin, Rory Smith +1
We investigate the properties of globular clusters in a galaxy cluster, using the particle tagging method with a semi-analytical approach in a cosmological context. We assume globu…
Comparison of spatial distributions of Intracluster light and Dark Matter
Jaewon Yoo, Jongwan Ko, Cristiano G. Sabiu +7
In a galaxy cluster, the relative spatial distributions of dark matter, member galaxies, gas, and intracluster light (ICL) may connote their mutual interactions over the cluster ev…
The Galaxy Replacement Technique (GRT): a New Approach to Study Tidal Stripping and Formation of Intracluster Light in a Cosmological Context
Kyungwon Chun, Jihye Shin, Rory Smith +2
We introduce the Galaxy Replacement Technique (GRT) that allows us to model tidal stripping of galaxies with very high-mass (m~M/h) and high-spa…
The Gas Accretion History of Low Mass Halos within the Cosmic Web from Cosmological Simulations
Kyungwon Chun, Rory Smith, Jihye Shin +2
Using high resolution hydrodynamical cosmological simulations, we study the gas accretion history of low mass halos located in a field-like, low density environment. We track their…
Cosmological Simulations of Satellites around Isolated Dwarf Galaxies
Kyungwon Chun, Jihye Shin, Rory Smith +1
We trace the cosmological origin of satellites around a dwarf galaxy using a very high resolution (12~pc/h) cosmological hydrodynamic zoom simulation. To realistically describe the…
Hydrodynamic simulations of the central molecular zone with realistic Galactic potential
Jihye Shin, Sungsoo S. Kim, Junichi Baba +4
We present hydrodynamic simulations of gas clouds inflowing from the disk to a few hundred parsec region of the Milky Way. A gravitational potential is generated to include realist…