69 citations · 126 across the 4 of their papers we have counts for
5 papers
Distance and properties of NGC 4993 as the host galaxy of a gravitational wave source, GW170817
Myungshin Im, Yongmin Yoon, Seong-Kook Lee +9
Recently, the optical counterpart of a gravitational wave source GW170817 has been identified in NGC 4993 galaxy. Together with evidence from observations in electromagnetic waves,…
First Weak-lensing Results from "See Change": Quantifying Dark Matter in the Two Z>1.5 High-redshift Galaxy Clusters SPT-CL J2040-4451 and IDCS J1426+3508
M. James Jee, Jongwan Ko, Saul Perlmutter +4
We present a weak-lensing study of SPT-CLJ2040-4451 and IDCSJ1426+3508 at z=1.48 and 1.75, respectively. The two clusters were observed in our "See Change" program, a HST survey of…
The dependence of cluster galaxy properties on the central entropy of their host cluster
Jae-Woo Kim, Jongwan Ko, Ho Seong Hwang +4
We present a study of the connection between brightest cluster galaxies (BCGs) and their host galaxy clusters. Using galaxy clusters at from the Hectospec Cluster Surve…
Stellar Populations of Early-type Galaxies with Mid-Infrared Excess Emission
Jongwan Ko, Haeun Chung, Ho Seong Hwang +1
We present a stellar population analysis of quiescent (without H emission) and bright ( 21.5) early-type galaxies (ETGs) with recent star formation. The ETGs are s…
Seoul National University Bright Quasar Survey in Optical (SNUQSO). II. Discovery of 40 Bright Quasars Near the Galactic Plane
Myungshin Im, Induk Lee, Yunseok Cho +3
We report the discovery of 40 bright quasars and active galactic nuclei (AGNs) at low Galactic latitude (b<20deg). The low Galactic latitude region has been considered a place to a…