activity
19982025
most citedChemical evolution of the Galactic bulge as traced by microlensed dwarf and subgiant stars. V. Evidence for a wide age distribution and a complex MDF

494 citations · 8.7k across the 230 of their papers we have counts for

collaborators

233 papers

astro-ph.EP2025★ 7 cited

Systematic KMTNet Planetary Anomaly Search. XII. Complete Sample of 2017 Subprime Field Planets

Yuqian Gui, Weicheng Zang, Ruocheng Zhai +39

We report the analysis of four unambiguous planets and one possible planet from the subprime fields () of the 2017 Korea Microlensing Telescope Network (KMTN…

astro-ph.EP2024

Roman FFP Revolution: Two, Three, Many Plutos

Andrew Gould, Jennifer C. Yee, Subo Dong

Roman microlensing stands at a crossroads between its originally charted path of cataloging a population of cool planets that has subsequently become well-measured down to super-Ea…

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.EP2024

KMT-2023-BLG-2669: Ninth Free-floating Planet Candidate with measurements

Youn Kil Jung, Kyu-Ha Hwang, Hongjing Yang +17

We report a free-floating planet (FFP) candidate identified from the analysis of the microlensing event KMT-2023-BLG-2669. The lensing light curve is characterized by a short durat…

astro-ph.EP2024★ 5 cited

How Rare are TESS Free-Floating Planets?

Hongjing Yang, Weicheng Zang, Tianjun Gan +3

Recently, Kunimoto et al. claimed that a short-lived signal in the Transiting Exoplanet Survey Satellite (TESS) Sector 61 database was possibly caused by a microlensing event with…

astro-ph.EP2024★ 1 cited

OGLE-2023-BLG-0836L: The sixth microlensing planet in a binary stellar system

Cheongho Han, Andrzej Udalski, Youn Kil Jung +32

Light curves of microlensing events occasionally deviate from the smooth and symmetric form of a single-lens single-source event. While most of these anomalous events can be accoun…