88 citations · 363 across the 13 of their papers we have counts for
5 papers · 1 filter
Planetary Lensing Signals of High-Magnification Events under Severe Finite-Source Effect
Cheongho Han, Doeon Kim
We investigate the effect of a finite source on the planetary-lensing signals of high-magnification events. From this, we find that the dependency of the finite-source effect on th…
The possibility of detecting planets in the Andromeda Galaxy
S. -J. Chung, D. Kim, The Angstrom Collaboration +9
The Angstrom Project is using a global network of 2m-class telescopes to conduct a high cadence pixel microlensing survey of the bulge of the Andromeda Galaxy (M31), with the prima…
Microlensing Characterization of Wide-Separation Planets
Cheongho Han, B. Scott Gaudi, Jin H. An +1
With their excellent photometric precision and dramatic increase in monitoring frequency, future microlensing survey experiments are expected to be sensitive to very short time-sca…
Properties of Planet-induced Deviations in the Astrometric Microlensing Centroid Shift Trajectory
Cheongho Han, Chunguk Lee
In this paper, we investigate the properties of the planet-induced deviations in the trajectory of the microlensed source star centroid motion (astrometric curve) and the correlati…
Colour Change Measurements of Gravitational Microlensing Events by Using the Difference Image Analysis Method
Cheongho Han, Seong-Hong Park
Detecting colour changes of a gravitational microlensing event induced by the limb-darkened extended source effect is important to obtain useful information both about the lens and…