Search Results - "Han, Cheongho"

A free-floating-planet microlensing event caused by a Saturn-mass object.

Authors: Dong, Subo Wu, Zexuan Ryu, Yoon-Hyun et al.

Source: Science. 1/1/2026, Vol. 391 Issue 6780, p96-99. 4p.

Subjects: Microlensing (Astrophysics), Gas giants, Protoplanetary disks, Gravitational lenses, Planetary systems, Gravitational interactions

Microlensing events indicate that super-Earth exoplanets are common in Jupiter-like orbits.

Authors: Zang, Weicheng Jung, Youn Kil Yee, Jennifer C. et al.

Source: Science. 4/25/2025, Vol. 388 Issue 6745, p400-404. 5p.

Subjects: Extrasolar planets, Microlensing (Astrophysics), Jupiter's orbit, Saturn (Planet), Earth (Planet)

KMT-2016-BLG-1337L: A Saturn-mass Planet Orbiting Within a Binary System of Low-mass Stars.

Authors: Han, Cheongho Lee, Chung-Uk Bond, Ian A. et al.

Source: Publications of the Astronomical Society of the Pacific. 2026, Vol. 138 Issue 3, p1-10. 10p.

A comprehensive analysis of three microlensing planet candidates with the planet/binary degeneracy.

Authors: Zhang, Jiyuan Zang, Weicheng Ryu, Yoon-Hyun et al.

Source: Monthly Notices of the Royal Astronomical Society; Feb2026, Vol. 545 Issue 4, p1-16, 16p

Four Giant Planets from 2024 KMTNet Microlensing Campaign.

Authors: Han, Cheongho Udalski, Andrzej Bond, Ian A. et al.

Source: Publications of the Astronomical Society of the Pacific. 2026, Vol. 138 Issue 1, p1-11. 11p.

Six binary brown dwarf candidates identified by microlensing.

Authors: Han, Cheongho Lee, Chung-Uk Bond, Ian A. et al.

Source: Astronomy & Astrophysics / Astronomie et Astrophysique. 2025, Vol. 704, p1-11. 11p.

Four binary microlenses with directly measured masses.

Authors: Han, Cheongho Udalski, Andrzej Lee, Chung-Uk et al.

Source: Astronomy & Astrophysics / Astronomie et Astrophysique. 2025, Vol. 702, p1-11. 11p.

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

Authors: Han, Cheongho Lee, Chung-Uk Udalski, Andrzej et al.

Source: Astronomy & Astrophysics / Astronomie et Astrophysique. 2025, Vol. 702, p1-13. 13p.

KMT-2024-BLG-0404L: A triple microlensing system consisting of a star, a brown dwarf, and a planet.

Authors: Han, Cheongho Udalski, Andrzej Lee, Chung-Uk et al.

Source: Astronomy & Astrophysics / Astronomie et Astrophysique. 2025, Vol. 700, p1-9. 9p.

MOA-2022-BLG-091Lb and KMT-2024-BLG-1209Lb: Microlensing planets detected through weak caustic-crossing signals.

Authors: Han, Cheongho Lee, Chung-Uk Udalski, Andrzej et al.

Source: Astronomy & Astrophysics / Astronomie et Astrophysique. 2025, Vol. 699, p1-9. 9p.

Analyses of anomalous lensing events detected from the UKIRT microlensing survey.

Authors: Han, Cheongho Zang, Weicheng Udalski, Andrzej et al.

Source: Astronomy & Astrophysics / Astronomie et Astrophysique. 2025, Vol. 696, p1-18. 18p.

MOA-2022-BLG-033Lb, KMT-2023-BLG-0119Lb, and KMT-2023-BLG-1896Lb: Three low mass-ratio microlensing planets detected through dip signals.

Authors: Han, Cheongho Bond, Ian A. Jung, Youn Kil et al.

Source: Astronomy & Astrophysics / Astronomie et Astrophysique. 2025, Vol. 694, p1-9. 9p.

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

Authors: Han, Cheongho Udalski, Andrzej Bond, Ian A. et al.

Source: Astronomy & Astrophysics / Astronomie et Astrophysique. 2024, Vol. 692, p1-10. 10p.

KMT-2024-BLG-1044L: A sub-Uranus microlensing planet around a host at the star–brown dwarf mass boundary.

Authors: Han, Cheongho Ryu, Yoon-Hyun Lee, Chung-Uk et al.

Source: Astronomy & Astrophysics / Astronomie et Astrophysique. 2024, Vol. 692, p1-8. 8p.

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

Authors: Han, Cheongho Bond, Ian A. Udalski, Andrzej et al.

Source: Astronomy & Astrophysics / Astronomie et Astrophysique. 2024, Vol. 691, p1-13. 13p.

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

Authors: Han, Cheongho Bond, Ian A. Lee, Chung-Uk et al.

Source: Astronomy & Astrophysics / Astronomie et Astrophysique. 7/15/2024, Vol. 687, p1-10. 10p.

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

Authors: Han, Cheongho Bond, Ian A. Udalski, Andrzej et al.

Source: Astronomy & Astrophysics / Astronomie et Astrophysique. 7/15/2024, Vol. 687, p1-9. 9p.

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

Authors: Han, Cheongho Udalski, Andrzej Jung, Youn Kil et al.

Source: Astronomy & Astrophysics / Astronomie et Astrophysique. 5/3/2024, Vol. 685, p1-11. 11p.

Systematic reanalysis of KMTNet microlensing events, paper I: Updates of the photometry pipeline and a new planet candidate.

Authors: (杨弘靖), Hongjing Yang Yee, Jennifer C Hwang, Kyu-Ha et al.

Source: Monthly Notices of the Royal Astronomical Society; Feb2024, Vol. 528 Issue 1, p11-27, 17p

OGLE-2019-BLG-1470LABc: Another microlensing giant planet in a binary system?

Authors: (匡仁昆), Renkun Kuang (臧伟呈), Weicheng Zang Jung, Youn Kil et al.

Source: Monthly Notices of the Royal Astronomical Society; Oct2022, Vol. 516 Issue 2, p1704-1720, 17p