37 citations · 183 across the 12 of their papers we have counts for
12 papers
Tracing the Giant Outer Halo of the Mysterious Massive Disk Galaxy M104 I. Photometry of the Extended Globular Cluster Systems
Jisu Kang, Myung Gyoon Lee, In Sung Jang +4
M104 (NGC 4594, the Sombrero galaxy) is a mysterious massive early-type galaxy that shows a dominant bulge and a prominent disk. However, the presence of a halo in M104 has been el…
A GMOS/IFU Study of Jellyfish Galaxies in Massive Clusters
Jeong Hwan Lee, Myung Gyoon Lee, Jae Yeon Mun +2
Jellyfish galaxies are an intriguing snapshot of galaxies undergoing ram-pressure stripping (RPS) in dense environments, showing spectacular star-forming knots in their disks and t…
Enhanced Star Formation Activity of Extreme Jellyfish Galaxies in Massive Clusters and the Role of Ram Pressure Stripping
Jeong Hwan Lee, Myung Gyoon Lee, Jae Yeon Mun +2
Jellyfish galaxies are an excellent tool to investigate the short-term effects of ram pressure stripping (RPS) on star formation in cluster environments. It has been thought that t…
A Rich Satellite Population of the NGC 4437 Group and Implications of a Magnitude Gap for Galaxy Group Assembly History
Yoo Jung Kim, Jisu Kang, Myung Gyoon Lee +1
Both observations and cosmological simulations have recently shown that there is a large scatter in the number of satellites of Milky Way (MW)-like galaxies. In this study, we inve…
Globular Cluster Systems of Massive Compact Elliptical Galaxies in the Local Universe: Evidence for Relic Red Nuggets?
Jisu Kang, Myung Gyoon Lee
Nearby massive compact elliptical galaxies (MCEGs) are strong candidates for relic galaxies (i.e. local analogs of red nuggets at high redshifts). It is expected that the globular…
Determination of the Local Hubble Constant from Virgo Infall Using TRGB Distances
Yoo Jung Kim, Jisu Kang, Myung Gyoon Lee +1
An independent determination of is crucial given the growing tension between the Hubble constant, , derived locally and that determined from the modeling of the cosmic m…
A New Metal-poor Globular Cluster and Resolved Stars in the Outer Disk of the Black Eye Galaxy M64: Implication for the Origin of the Type III Disk Break
Jisu Kang, Yoo Jung Kim, Myung Gyoon Lee +1
M64 is a nearby spiral galaxy with a Type III anti-truncation component. To trace the origin of the Type III component, we present Hubble Space Telescope/Advanced Camera for Survey…
The Nature of Ultra-diffuse Galaxies in Distant Massive Galaxy Clusters: Abell 370 in the Hubble Frontier Fields
Jeong Hwan Lee, Jisu Kang, Myung Gyoon Lee +1
We report the discovery of ultra-diffuse galaxies (UDGs) in Abell 370 (). We find 46 UDGs in Abell 370 from the images of the Hubble Frontier Fields (HFF). Most UDGs are l…
Star Clusters in the Elliptical Galaxy NGC 4589 Hosting a Calcium-rich SN Ib (SN 2005CZ)
Myung Gyoon Lee, In Sung Jang, Jisu Kang
_NGC 4589, a bright E2 merger-remnant galaxy, hosts the peculiar fast and faint calcium-rich Type Ib supernova (SN) SN 2005cz. The progenitor of Ca-rich SNe Ib has been controversi…
A Globular Cluster Luminosity Function Distance to NGC 4993 Hosting a Binary Neutron Star Merger GW170817/GRB 170817A
Myung Gyoon Lee, Jisu Kang, Myungshin Im
NGC 4993 hosts a binary neutron star merger emitting gravitational waves and electromagnetic waves, GW170817/GRB 170817A. The distance to this galaxy is not well established. We se…
Detection of a Large Population of Ultra Diffuse Galaxies in Massive Galaxy Clusters: Abell S1063 and Abell 2744
Myung Gyoon Lee, Jisu Kang, Jeong Hwan Lee +1
We present the detection of a large population of ultra diffuse galaxies (UDGs) in two massive galaxy clusters, Abell S1063 at and Abell 2744 at , based on F814W…
Can very massive Population III stars produce a super-collapsar?
Sung-Chul Yoon, Jisu Kang, Alexandra Kozyreva
A fraction of the first generation of stars in the early Universe may be very massive () as they form in metal-free environments. Formation of black h…