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27 papers · 2 filters
Frequency of Tidal Features Correlates with Age and Internal Structure of Early-type Galaxies
Yongmin Yoon, Gu Lim
Previous studies suggest that compact young early-type galaxies (ETGs) were formed by recent mergers. However, it has not yet been revealed whether tidal features that are direct e…
High-resolution Near-infrared Spectroscopic Study of Galactic Supernova Remnants. I. Kinematic Distances
Yong-Hyun Lee, Bon-Chul Koo, Jae-Joon Lee
We have carried out high-resolution near-infrared spectroscopic observations toward 16 Galactic supernova remnants (SNRs) showing strong H emission features. A dozen bright H…
Radiative Supernova Remnants and Supernova Feedback
Bon-Chul Koo, Chang-Goo Kim, Sangwook Park +1
Supernova (SN) explosions are a major feedback mechanism regulating star formation in galaxies through their momentum input. We review the observations of SNRs in radiative stages…
Tracing Dark Matter Halos with Satellite Kinematics and the Central Stellar Velocity Dispersion of Galaxies
Gangil Seo, Jubee Sohn, Myung Gyoon Lee
It has been suggested that the central stellar velocity dispersion of galaxies can trace dark matter halo mass directly. We test this hypothesis using a complete spectroscopic samp…
The Infrared Medium-deep Survey. VIII. Quasar Luminosity Function at
Yongjung Kim, Myungshin Im, Yiseul Jeon +27
Faint quasars with mag are known to be the potentially important contributors to the ultraviolet ionizing background in the post-reionization era. Howeve…
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…