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Microlensing Optical Depth Revisited with Recent Star Counts
Yoon-Hyun Ryu, Heon-Young Chang, Myeong-Gu Park +1
More reliable constraints on the microlensing optical depth comes from a better understanding of the Galactic model. Based on well-constrained Galactic bulge and disk models constr…
Microlensing under Shear
Yoon-Hyun Ryu, Myeong-Gu Park
We investigate the distortions due to this shear in the microlensing light curves and in the astrometric microlensing centroid shift trajectories. As expected, the light curve devi…
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…
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…