5 papers
A New WZ Sagittae-type Dwarf Nova KSP-OT-202104a Near the Period Minimum from the KMTNet Supernova Program
Sang Chul Kim, Youngdae Lee, Dae-Sik Moon +4
We present photometric and spectroscopic studies of a new WZ Sagittae (Sge)-type dwarf nova (DN) KSP-OT-202104a discovered by the Korea Microlensing Telescope Network Supernova Pro…
Formation Pathways of Compact Elliptical Galaxies: Perspective of Internal Structures
Jinwon Yi, Soo-Chang Rey, Suk Kim +1
We present a structural analysis of 138 compact elliptical galaxies (cEs) in the redshift range of using the Sloan Digital Sky Survey (SDSS) DR12 data. We perform single…
Infant Core-collapse Supernovae with Circumstellar Interactions from KMTNet I: Luminous Transitional Case of KSP-SN-2022c
Nan Jiang, Dae-Sik Moon, Yuan Qi Ni +6
We present multi-band high-cadence observations of a Type II supernova (SN) KSP-SN-2022c from a star-forming galaxy at 0.041 from its infant to nebular phase. Ea…
Origin of high-velocity ejecta and early red excess emission in the infant Type Ia supernova 2021aefx
Yuan Qi Ni, Dae-Sik Moon, Maria R. Drout +5
SN~2021aefx is a normal Type Ia Supernova (SN) with red excess emission over the first 2 days. We present detailed analysis of this SN using our high-cadence KMTNet multi-ba…
The origin and evolution of the normal Type Ia SN 2018aoz with infant-phase reddening and excess emission
Yuan Qi Ni, Dae-Sik Moon, Maria R. Drout +40
SN~2018aoz is a Type Ia SN with a -band plateau and excess emission in the infant-phase light curves 1 day after first light, evidencing an over-density of surface ir…