40 citations · 198 across the 14 of their papers we have counts for
14 papers
An evolutionary continuum from nucleated dwarf galaxies to star clusters
Kaixiang Wang, Eric W. Peng, Chengze Liu +21
Systematic studies have revealed hundreds of ultra-compact dwarf galaxies (UCDs) in the nearby Universe. With half-light radii of approximately 10-100 parsecs and stellar mas…
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…
The Next Generation Virgo Cluster Survey. XXXIII. Stellar Population Gradients in the Virgo Cluster Core Globular Cluster System
Youkyung Ko, Eric W. Peng, Patrick Côté +24
We present a study of the stellar populations of globular clusters (GCs) in the Virgo Cluster core with a homogeneous spectroscopic catalog of 692 GCs within a major axis distance…
The Color Gradients of the Globular Cluster Systems in M87 and M49
Yiming Wu, Chengze Liu, Eric W. Peng +8
Combining data from the ACS Virgo Cluster Survey (ACSVCS) and the Next Generation Virgo cluster Survey (NGVS), we extend previous studies of color gradients of the globular cluster…
Fresh Insights on the Kinematics of M49's Globular Cluster System with MMT/Hectospec Spectroscopy
Matthew A. Taylor, Youkyung Ko, Patrick Côté +10
We present the first results of an MMT/Hectospec campaign to measure the kinematics of globular clusters (GCs) around M49 -- the brightest galaxy in the Virgo galaxy cluster, which…
Mysterious Globular Cluster System of the Peculiar Massive Galaxy M85
Youkyung Ko, Myung Gyoon Lee, Hong Soo Park +4
We present a study on stellar population and kinematics of globular clusters (GCs) in the peculiar galaxy M85. We obtain optical spectra of 89 GCs at 8 kpc 160 kpc using th…
The Next Generation Virgo Cluster Survey. XXXIV. Ultra-Compact Dwarf (UCD) Galaxies in the Virgo Cluster
Chengze Liu, Patrick Côté, Eric W. Peng +26
We present a study of ultra compact dwarf (UCD) galaxies in the Virgo cluster based mainly on imaging from the Next Generation Virgo Cluster Survey (NGVS). Using 100 deg$^{2}…
A discrete chemo-dynamical model of M87's globular clusters: Kinematics extending to ~ 400 kpc
Chao Li, Ling Zhu, R. J. Long +14
We study the mass distribution and kinematics of the giant elliptical galaxy M87 (NGC 4486) using discrete chemo-dynamical, axisymmetric Jeans equation modelling. Our catalogue com…
The Next Generation Virgo Cluster Survey. XVII. A Search for Planetary Nebulae in Virgo Cluster Globular Clusters
Weijia Sun, Eric W. Peng, Youkyung Ko +11
The occurrence of planetary nebulae (PNe) in globular clusters (GCs) provides an excellent chance to study low-mass stellar evolution in a special (low-metallicity, high stellar de…
A Wide-field Photometric Survey of Globular Clusters in the Peculiar Early-type Galaxy M85
Youkyung Ko, Myung Gyoon Lee, Hong Soo Park +4
We survey globular clusters (GCs) in M85 using -band images of a field obtained with the MegaCam at the 3.6 m Canada-France-Hawaii Telescope. We i…
Gemini/GMOS Spectroscopy of Globular Clusters in the Merger Remnant Galaxy M85
Youkyung Ko, Myung Gyoon Lee, Hong Soo Park +3
M85 is a peculiar S0 galaxy in Virgo and is a well-known merger remnant. In this paper, we present the first spectroscopic study of globular clusters (GCs) in M85. We obtain spectr…
To the Edge of M87 and Beyond: Spectroscopy of Intracluster Globular Clusters and Ultra Compact Dwarfs in the Virgo Cluster
Youkyung Ko, Ho Seong Hwang, Myung Gyoon Lee +6
We present the results from a wide-field spectroscopic survey of globular clusters (GCs) in the Virgo Cluster. We obtain spectra for 201 GCs and 55 ultracompact dwarfs (UCDs) using…
Optical Spectroscopy of Supernova Remnants in M81 and M82
Myung Gyoon Lee, Jubee Sohn, Jong Hwan Lee +7
We present spectroscopy of 28 SNR candidates as well as one H II region in M81, and two SNR candidates in M82. Twenty six out of the M81 candidates turn out to be genuine SNRs, and…
Ks Band Luminosity Evolution of the Asymptotic Giant Branch Population Based on Star Clusters in the Large Magellanic Cloud
Youkyung Ko, Myung Gyoon Lee, Sungsoon Lim
We present a study of Ks band luminosity evolution of the asymptotic giant branch (AGB) population in simple stellar systems using star clusters in the Large Magellanic Cloud (LMC)…