366 citations · 1.1k across the 18 of their papers we have counts for
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Properties of Planetary Caustics in Gravitational Microlensing
Cheongho Han
Although some of the properties of the caustics in planetary microlensing have been known, our understanding of them is mostly from scattered information based on numerical approac…
Effect of Binary Source Companions on the Microlensing Optical Depth Determination toward the Galactic Bulge Field
Cheongho Han
Currently, gravitational microlensing survey experiments toward the Galactic bulge field utilize two different methods of minimizing blending effect for the accurate determination…
On the Feasibility of Characterizing Lens Stars in Future Space-Based Microlensing Surveys
Cheongho Han
If a light-emitting star is responsible for a gravitational microlensing event, the lens can be characterized by analyzing the blended light from the lens. In this paper, we invest…
Planetary Detection Efficiency of the Magnification 3000 Microlensing Event OGLE-2004-BLG-343
Subo Dong, D. L. DePoy, B. S. Gaudi +12
OGLE-2004-BLG-343 was a microlensing event with peak magnification A_{max}=3000+/-1100, by far the highest-magnification event ever analyzed and hence potentially extremely sensiti…
A Jovian-mass Planet in Microlensing Event OGLE-2005-BLG-071
A. Udalski, M. Jaroszynski, B. Paczynski +30
We report the discovery of a several-Jupiter mass planetary companion to the primary lens star in microlensing event OGLE-2005-BLG-071. Precise (<1%) photometry at the peak of the…
Properties of Central Caustics in Planetary Microlensing
Sun-Ju Chung, Cheongho Han, Byeong-Gon Park +9
To maximize the number of planet detections, current microlensing follow-up observations are focusing on high-magnification events which have a higher chance of being perturbed by…