366 citations · 1.1k across the 18 of their papers we have counts for
4 papers · 1 filter
Gravitational Microlensing: A Tool for Detecting and Characterizing Free-Floating Planets
Cheongho Han, Sun-Ju Chung, Doeon Kim +4
Various methods have been proposed to search for extrasolar planets. Compared to the other methods, microlensing has unique applicabilities to the detections of Earth-mass and free…
Signs of Planetary Microlensing Signals
Cheongho Han, Kyongae Chang
An extrasolar planet can be detected via microlensing from the perturbation it makes in the smooth lensing light curve of the primary. In addition to the conventional photometric m…
Probing the Spatial Distribution of Extrasolar Planets with Gravitational Microlensing
Cheongho Han, Young Woon Kang
Under the current microlensing planet search strategy of monitoring events caused by stellar-mass lenses, only planets located within a narrow region of separations from central st…
Stellar Contribution to the Galactic Bulge Microlensing Optical Depth
Cheongho Han, Andrew Gould
We estimate the optical depth to self-lensing by stars in the Galactic bulge using the HST star counts of Holtzman et al and Zoccali et al as extrapolated by Gould into the brown-d…