366 citations · 1.1k across the 18 of their papers we have counts for
5 papers · 1 filter
Blending in Future Space-based Microlensing Surveys
Cheongho Han, Byeong-Gon Park, Ho-Il Kim +1
We investigate the effect of blending in future gravitational microlensing surveys by carrying out simulation of Galactic bulge microlensing events to be detected from a proposed s…
Microlens OGLE-2005-BLG-169 Implies Cool Neptune-Like Planets are Common
A. Gould, A. Udalski, D. An +33
We detect a Neptune mass-ratio (q~8e-5) planetary companion to the lens star in the extremely high-magnification (A~800) microlensing event OGLE-2005-BLG-169. If the parent is a ma…
Secure Identification of Free-Floating Planets
Cheongho Han
Among the methods proposed to detect extrasolar planets, microlensing is the only technique that can detect free-floating planets. Free-floating planets are detected through the ch…
Determination of Stellar Ellipticities in Future Microlensing Surveys
Cheongho Han, Heon-Young Chang
We propose a method that can determine the ellipticities of source stars of microlensing events produced by binary lenses. The method is based on the fact that the products of the…
Microlensing Sensitivity to Earth-mass Planets in the Habitable Zone
Byeong-Gon Park, Young-Beom Jeon, Chung-Uk Lee +1
Microlensing is one of the most powerful methods that can detect extrasolar planets and a future space-based survey with a high monitoring frequency is proposed to detect a large s…