26 citations · 32 across the 16 of their papers we have counts for
16 papers
Masking Algorithm for CCD Bleeding in Korea Microlensing Telescope Network Images
Jiseop Shin, Mankeun Jeong, Myungshin Im +3
Astronomical CCD images are often affected by bleeding from bright sources, producing column-aligned streaks that degrade source detection and photometry. We present a pixel-level…
7DT Insight: Variability in Young Stellar Objects
Mi-Ryang Kim, Jeong-Eun Lee, Myungshin Im +11
Photometric variability in young stellar objects (YSOs) provides critical insight into the mechanisms of mass accretion, disk evolution, and circumstellar extinction in early stell…
KMTNet Synoptic Survey of Southern Sky III: The First Data Release
Seo-Won Chang, Myungshin Im, Mankeun Jeong +13
We present the first public data release (DR1) of the KMTNet Synoptic Survey of Southern Sky (KS4). This deep, wide-field imaging survey covers a southern footprint of -85$^{\circ}…
KMTNet Synoptic Survey of Southern Sky II: Data Reduction and Real-Time Transient Detection Pipeline
Mankeun Jeong, Myungshin Im, Joonho Kim +9
We present a comprehensive pipeline developed for the image processing of the KMTNet Synoptic Survey of the Southern Sky (KS4) Data Release 1. This pipeline encompasses several key…
A Hybrid Framework for Kilonova Anomaly Detection using Single-Epoch SEDs from the 7-Dimensional Telescope
Gregory S. H. Paek, Myungshin Im, Seo-Won Chang +2
We develop a hybrid framework to identify kilonovae (KNe), using single-epoch, medium-band spectral energy distributions from the 7-Dimensional Telescope (7DT). The framework integ…
Investigating the Effects of Point Source Injection Strategies on KMTNet Real/Bogus Classification
Dongjin Lee, Gregory S. H. Paek, Seo-Won Chang +6
Recently, machine learning-based real/bogus (RB) classifiers have demonstrated effectiveness in filtering out artifacts and identifying genuine transients in real-time astronomical…
Photometric Redshift Forecast for 7-Dimensional Sky Survey
Eunhee Ko, Myungshin Im, Yujin Yang +3
We investigate the expected accuracy of redshifts that can be obtained using low-resolution spectroscopic (medium-band) data from the 7-Dimensional Sky Survey (7DS). By leveraging…
AllBRICQS: The Discovery of Luminous Quasars in the Northern Hemisphere
Yunyi Choi, Yuming Fu, Myungshin Im +16
We present the second catalog of bright quasars from the All-sky BRIght, Complete Quasar Survey (AllBRICQS), focusing on spectroscopically observed quasars in the Northern Hemisphe…
GECKO Follow-up Observation of the Binary Neutron Star-Black Hole Merger Candidate S230518h
Gregory S. H. Paek, Myungshin Im, Mankeun Jeong +12
The gravitational wave (GW) event S230518h is a potential binary neutron star-black hole merger (NSBH) event that was detected during engineering run 15 (ER15), which served as the…
Detection of Unresolved Strongly Lensed Supernovae with 7-Dimensional Telescope
Elahe Khalouei, Arman Shafieloo, Alex G. Kim +6
Gravitationally lensed supernovae (glSNe) are a powerful tool for exploring the realms of astronomy and cosmology. Time-delay measurements and lens modeling of glSNe can provide a…
Multiwavelength Afterglow Analysis of GRB 221009A: Unveiling the Evolution of a Cooling Break in a Wind-like Medium
Donggeun Tak, Z. Lucas Uhm, Gregory S. H. Paek +8
Gamma-ray bursts (GRBs) are the most energetic explosions in the universe, and their afterglow emission provides an opportunity to probe the physics of relativistic shock waves in…
TCSpy: Multi-telescope Array Control Software for 7-Dimensional Telescope (7DT)
Hyeonho Choi, Myungshin Im, Ji Hoon Kim
We introduce a novel software called TCSpy which is designed to efficiently control a multi-telescope array through network-based protocols. The primary objectives of TCSpy include…
Project Management for Ground-based Telescope Array Development
Ji Hoon Kim, Myungshin Im, Hyung Mok Lee +1
Center for the Gravitational-Wave Universe at Seoul National University has been operating its main observational facility, the 7-Dimensional Telescope (7DT) since October 2023. Lo…
Introduction to the 7-Dimensional Telescope: Commissioning Procedures and Data Characteristics
Ji Hoon Kim, Myungshin Im, Hyung Mok Lee +3
The 7-Dimensional Telescope (7DT) is a multi-telescope system designed to identify electromagnetic (EM) counterparts of gravitational-wave (GW) sources. Consisting of 20 50-cm tele…
GRB100814A as a member of the growing set of bursts with sudden optical rebrightening
Massimiliano De Pasquale, N. P. Kuin, S. Oates +22
We present the gamma-ray, X-ray, optical and radio data for GRB100814A. At the end of the slow decline phase of the X-ray and optical afterglow, a sudden and prominent rebrightenin…
Multi-wavelength observations of afterglow of GRB 080319B and the modeling constraints
S. B. Pandey, A. J. Castro-Tirado, M. Jelínek +24
We present observations of the afterglow of GRB 080319B at optical, mm and radio frequencies from a few hours to 67 days after the burst. Present observations along with other publ…