activity
20062022
most citedMulti-color Near Infra-red Intra-day and Short Term Variability of the Blazar S5 0716+714

52 citations · 345 across the 25 of their papers we have counts for

collaborators

25 papers

astro-ph.GA2022★ 3 cited

Photometry of the Four Anti-Galactocentric Old Open Clusters: Czernik 30, Berkeley 34, Berkeley 75, and Berkeley 76

Hyobin Im, Sang Chul Kim, Jaemann Kyeong +2

We present a BVI photometric study of four old open clusters (OCs) in the Milky Way Galaxy, Czernik 30, Berkeley 34, Berkeley 75, and Berkeley 76 using the observation data obtaine…

astro-ph.GA2019★ 10 cited

Impact of Galaxy Mergers on the Colours of Cluster Galaxies

Sree Oh, Keunho Kim, Joon Hyeop Lee +9

We examine the ultraviolet and optical colours of 906 cluster galaxies from the KASI-Yonsei Deep Imaging Survey of Clusters (KYDISC). Galaxies have been divided into two categories…

astro-ph.GA2019★ 9 cited

RR Lyrae Stars in the Field of Sagittarius II

Seok-Joo Joo, Jaemann Kyeong, Soung-Chul Yang +10

We present the detection of RR Lyrae variable stars in the field of the Sagittarius II (Sgr II) ultra-faint dwarf (UFD) galaxy. Using B, V time-series photometry obtained with the…

astro-ph.GA2018★ 41 cited

KYDISC: Galaxy Morphology, Quenching, and Mergers in the Cluster Environment

Sree Oh, Keunho Kim, Joon Hyeop Lee +8

We present the KASI-Yonsei Deep Imaging Survey of Clusters (KYDISC) targeting 14 clusters at 0.015 < z < 0.144 using the Inamori Magellan Areal Camera and Spectrograph on the 6.5-m…

astro-ph.GA2018★ 17 cited

RR Lyrae Variable Stars in the Crater II Dwarf Galaxy

Seok-Joo Joo, Jaemann Kyeong, Soung-Chul Yang +10

We report the detection of RR Lyrae variable stars in Crater II, a recently discovered large and diffuse satellite dwarf galaxy of the Milky Way (MW). Based on B, V time-series pho…

astro-ph.GA2017★ 5 cited

Pixel Color-Magnitude Diagram Analysis of the Brightest Cluster Galaxies in Dynamically Young and Old Clusters, Abell 1139 and Abell 2589

Joon Hyeop Lee, Sree Oh, Hyunjin Jeong +3

As a case study to understand the coevolution of Brightest Cluster Galaxies (BCGs) and their host clusters, we investigate the BCGs in dynamically young and old clusters, Abell 113…