List of works by Cheongho Han

A Free-floating or Wide-orbit Planet in the Microlensing Event OGLE-2019-BLG-0551

scientific article published on 14 May 2020

A Planetary Microlensing Event with an Unusually Red Source Star: MOA-2011-BLG-291

scientific article published in Astronomical Journal

A Terrestrial-mass Rogue Planet Candidate Detected in the Shortest-timescale Microlensing Event

scientific article published on 29 October 2020

An Earth-mass Planet in a 1 au Orbit around an Ultracool Dwarf

scholarly article

Can the masses of isolated planetary-mass gravitational lenses Be measured by terrestrial parallax?

scientific article published in January 2015

Candidate Brown-dwarf Microlensing Events with Very Short Timescales and Small Angular Einstein Radii

scientific article published on 28 February 2020

Exoplanet discovery and characterisation through robotic follow-up of microlensing events: Season 2010 results

Four microlensing planets with faint-source stars identified in the 2016 and 2017 season data

scientific article published in October 2020

KMT-2017-BLG-2820 and the Nature of the Free-floating Planet Population

KMT-2018-BLG-1025Lb: microlensing super-Earth planet orbiting a low-mass star

scientific article published in May 2021

KMT-2019-BLG-0371 and the Limits of Bayesian Analysis

scientific article published on 15 June 2021

KMT-2019-BLG-0842Lb: A Cold Planet Below the Uranus/Sun Mass Ratio

scientific article published in 2020

KMT-2019-BLG-1339L: an M Dwarf with a Giant Planet or a Companion Near the Planet/Brown Dwarf Boundary

scientific article published in 2020

KMT-2019-BLG-1715: Planetary Microlensing Event with Three Lens Masses and Two Source Stars

scientific article published on 19 May 2021

MOA-2019-BLG-008Lb: A New Microlensing Detection of an Object at the Planet/Brown Dwarf Boundary

scientific article published in 2022

OGLE-2015-BLG-1670Lb: A Cold Neptune beyond the Snow Line in the Provisional WFIRST Microlensing Survey Field

scientific article

OGLE-2015-BLG-1771Lb: A Microlens Planet Orbiting an Ultracool Dwarf?

scientific article published on 20 February 2020

OGLE-2016-BLG-0156: Microlensing Event with Pronounced Microlens-parallax Effects Yielding a Precise Lens Mass Measurement

scholarly article

OGLE-2016-BLG-1227L: A Wide-separation Planet from a Very Short-timescale Microlensing Event

scientific article published on 6 February 2020

OGLE-2017-BLG-0039: Microlensing Event with Light from a Lens Identified from Mass Measurement

scientific article published in the Astrophysical Journal

OGLE-2017-BLG-0406: Spitzer Microlens Parallax Reveals Saturn-mass Planet Orbiting M-dwarf Host in the Inner Galactic Disk

scientific article published on 23 July 2020

OGLE-2017-BLG-1049: Another giant planet microlensing event

OGLE-2018-BLG-0022: First Prediction of an Astrometric Microlensing Signal from a Photometric Microlensing Event

OGLE-2018-BLG-0532Lb: Cold Neptune with Possible Jovian Sibling

scientific article published on 25 September 2020

OGLE-2018-BLG-0567Lb and OGLE-2018-BLG-0962Lb: Two Microlensing Planets through Planetary-Caustic Channel

OGLE-2018-BLG-1011Lb,c: Microlensing Planetary System with Two Giant Planets Orbiting a Low-mass Star

scientific article published on 19 August 2019

OGLE-2018-BLG-1185b: A Low-mass Microlensing Planet Orbiting a Low-mass Dwarf

scientific article published in August 2021

OGLE-2018-BLG-1269Lb: A Jovian Planet With A Bright, $I=16$ Host

OGLE-2018-BLG-1428Lb: a Jupiter-mass planet beyond the snow line of a dwarf star

OGLE-2018-BLG-1700L: Microlensing Planet in Binary Stellar System

scientific article published on 13 January 2020

OGLE-2019-BLG-0304: Competing Interpretations between a Planet–binary Model and a Binary-source + Binary-lens Model

scientific article published on 19 October 2021

OGLE-2019-BLG-0960 Lb: the Smallest Microlensing Planet

scientific article published on 6 October 2021

OGLE-2019-BLG-1470LABc: Another Microlensing Giant Planet in a Binary System?

scientific article published on 18 August 2022

Spectroscopic Mass and Host-star Metallicity Measurements for Newly Discovered Microlensing Planet OGLE-2018-BLG-0740Lb

Spitzer Microlensing Parallax Reveals Two Isolated Stars in the Galactic Bulge

Spitzer Microlensing Parallax for OGLE-2017-BLG-0896 Reveals a Counter-rotating Low-mass Brown Dwarf

Spitzer Microlensing of MOA-2016-BLG-231L: A Counter-rotating Brown Dwarf Binary in the Galactic Disk

scientific article

Systematic KMTNet Planetary Anomaly Search, Paper II: Six New $q<2\times 10^{-4}$ Mass-ratio Planets

Systematic KMTNet Planetary Anomaly Search. I. OGLE-2019-BLG-1053Lb, a Buried Terrestrial Planet

scientific article published on 24 September 2021

Systematic KMTNet Planetary Anomaly Search. XI. Complete Sample of 2016 Sub-Prime Field Planets

Systematic Korea Microlensing Telescope Network planetary anomaly search – III. One wide-orbit planet and two stellar binaries

scientific article published on 11 December 2021

Three faint-source microlensing planets detected via the resonant-caustic channel

scientific article published in November 2021

Three microlensing planets with no caustic-crossing features

scientific article published in June 2021

Two new free-floating or wide-orbit planets from microlensing

scientific article

Using Source Proper Motion to Validate Terrestrial Parallax: OGLE-2019-BLG-1058

scientific article published on 26 November 2021