activity
20062017
most citedOne or more bound planets per Milky Way star from microlensing observations

588 citations · 3.2k across the 37 of their papers we have counts for

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Showing astro-ph.SRShow all

12 papers · 1 filter

astro-ph.SR2013★ 29 cited

Gravitational Binary-lens Events with Prominent Effects of Lens Orbital Motion

H. Park, A. Udalski, C. Han +58

Gravitational microlensing events produced by lenses composed of binary masses are important because they provide a major channel to determine physical parameters of lenses. In thi…

astro-ph.SR2013★ 51 cited

Microlensing Discovery of a Population of Very Tight, Very Low-mass Binary Brown Dwarfs

J. -Y. Choi, C. Han, A. Udalski +121

Although many models have been proposed, the physical mechanisms responsible for the formation of low-mass brown dwarfs are poorly understood. The multiplicity properties and minim…

astro-ph.SR2012★ 16 cited

MOA-2010-BLG-523: "Failed Planet" = RS CVn Star

A. Gould, J. C. Yee, I. A. Bond +116

The Galactic bulge source MOA-2010-BLG-523S exhibited short-term deviations from a standard microlensing lightcurve near the peak of an Amax ~ 265 high-magnification microlensing e…

astro-ph.SR2012★ 22 cited

Microlensig Binaries with Candidate Brown Dwarf Companions

I. -G. Shin, C. Han, A. Gould +152

Brown dwarfs are important objects because they may provide a missing link between stars and planets, two populations that have dramatically different formation history. In this pa…

astro-ph.SR2012★ 36 cited

Characterizing Low-Mass Binaries From Observation of Long Time-scale Caustic-crossing Gravitational Microlensing Events

I. -G. Shin, C. Han, J. -Y. Choi +119

Despite astrophysical importance of binary star systems, detections are limited to those located in small ranges of separations, distances, and masses and thus it is necessary to u…

astro-ph.SR2011★ 33 cited

Characterizing Lenses and Lensed Stars of High-Magnification Single-lens Gravitational Microlensing Events With Lenses Passing Over Source Stars

J. -Y. Choi, I. -G. Shin, S. -Y. Park +148

We present the analysis of the light curves of 9 high-magnification single-lens gravitational microlensing events with lenses passing over source stars, including OGLE-2004-BLG-254…