activity
20142026
most citedThe Wide Field Infrared Survey Telescope: 100 Hubbles for the 2020s

178 citations · 2.9k across the 167 of their papers we have counts for

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Showing 2025Show all

15 papers · 1 filter

astro-ph.EP2025

Four Giant Planets from 2024 KMTNet Microlensing Campaign

Cheongho Han, Andrzej Udalski, Ian A. Bond +56

In this work, we present analyses of four newly discovered planetary microlensing events from the 2024 KMTNet survey season: KMT-2024-BLG-0176, KMT-2024-BLG-0349, KMT-2024-BLG-1870…

astro-ph.SR2025

Six binary brown dwarf candidates identified by microlensing

Cheongho Han, Chung-Uk Lee, Ian A. Bond +57

In this study, we analyze microlensing events from the 2023 and 2024 observing seasons to identify cases likely caused by binary systems composed of BDs. By applying criteria that…

astro-ph.EP2025★ 1 cited

Predictions of the Nancy Grace Roman Space Telescope Galactic Exoplanet Survey. IV. Lens Mass and Distance Measurements

Sean K. Terry, Etienne Bachelet, Farzaneh Zohrabi +54

As part of the Galactic Bulge Time Domain Survey (GBTDS), the Nancy Grace Roman Galactic Exoplanet Survey (RGES) will use microlensing to discover cold outer planets and free-float…

astro-ph.EP2025

A Comprehensive Analysis of Three Microlensing Planet Candidates with the Planet/Binary Degeneracy

Jiyuan Zhang, Weicheng Zang, Yoon-Hyun Ryu +65

We present observations and analyses of three high-magnification microlensing events: KMT-2022-BLG-0954, KMT-2024-BLG-0697, and MOA-2024-BLG-018. All three exhibit the "Planet/Bina…

astro-ph.EP2025

Six microlensing planets detected via sub-day signals during the 2023 -- 2024 season

Cheongho Han, Chung-Uk Lee, Andrzej Udalski +58

We present analyses of six microlensing events: KMT-2023-BLG-0548, KMT-2023-BLG-0830, KMT-2023-BLG-0949, KMT-2024-BLG-1281, KMT-2024-BLG-2059, and KMT-2024-BLG-2242. These were ide…

astro-ph.IM2025

Four binary microlenses with directly measured masses

Cheongho Han, Andrzej Udalski, Chung-Uk Lee +58

We investigated binary lens events from the 2022-2024 microlensing surveys, aiming to identify events suitable for lens mass measurements. We focused on two key light curve feature…