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20192025
most citedSystematic KMTNet Planetary Anomaly Search, Paper II: Six New Mass-ratio Planets

48 citations · 149 across the 20 of their papers we have counts for

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6 papers · 1 filter

astro-ph.SR2024

KMT-2021-BLG-0284, KMT-2022-BLG-2480, and KMT-2024-BLG-0412: Three microlensing events involving two lens masses and two source stars

Cheongho Han, Andrzej Udalski, Ian A. Bond +59

We carried out a project involving the systematic analysis of microlensing data from the Korea Microlensing Telescope Network survey. The aim of this project is to identify lensing…

astro-ph.SR2024

Microlensing brown-dwarf companions in binaries detected during the 2022 and 2023 seasons

Cheongho Han, Ian A. Bond, Andrzej Udalski +63

Building on previous works to construct a homogeneous sample of brown dwarfs in binary systems, we investigate microlensing events detected by the Korea Microlensing Telescope Netw…

astro-ph.EP2024

Four microlensing giant planets detected through signals produced by minor-image perturbations

Cheongho Han, Ian A. Bond, Chung-Uk Lee +63

We investigated the nature of the anomalies appearing in four microlensing events KMT-2020-BLG-0757, KMT-2022-BLG-0732, KMT-2022-BLG-1787, and KMT-2022-BLG-1852. The light curves o…

astro-ph.EP2024

KMT-2023-BLG-1866Lb: Microlensing super-Earth around an M dwarf host

Cheongho Han, Ian A. Bond, Andrzej Udalski +64

We investigate the nature of the short-term anomaly that appears in the lensing light curve of KMT-2023-BLG-1866. The anomaly was only partly covered due to its short duration, les…

astro-ph.SR2024

OGLE-2018-BLG-0971, MOA-2023-BLG-065, and OGLE-2023-BLG-0136: Microlensing events with prominent orbital effects

Cheongho Han, Andrzej Udalski, Ian A. Bond +60

We undertake a project to reexamine microlensing data gathered from high-cadence surveys. The aim of the project is to reinvestigate lensing events with light curves exhibiting int…

astro-ph.EP2024

MOA-2022-BLG-563Lb, KMT-2023-BLG-0469Lb, and KMT-2023-BLG-0735Lb: Three sub-Jovian-mass microlensing planets

Cheongho Han, Youn Kil Jung, Ian A. Bond +45

We analyze the anomalies appearing in the light curves of the three microlensing events MOA-2022-BLG-563, KMT-2023-BLG-0469, and KMT-2023-BLG-0735. The anomalies exhibit common sho…