activity
20122016
most citedSpitzer Parallax of OGLE-2015-BLG-0966: A Cold Neptune in the Galactic Disk

119 citations · 1.1k across the 25 of their papers we have counts for

collaborators
Showing 2013Show all

6 papers · 1 filter

astro-ph.EP2013★ 31 cited

A Super-Jupiter orbiting a late-type star: A refined analysis of microlensing event OGLE-2012-BLG-0406

Y. Tsapras, J. -Y. Choi, R. A. Street +122

We present a detailed analysis of survey and follow-up observations of microlensing event OGLE-2012-BLG-0406 based on data obtained from 10 different observatories. Intensive cover…

astro-ph.SR2013★ 59 cited

Interpretation of a Short-Term Anomaly in the Gravitational Microlensing Event MOA-2012-BLG-486

K. -H. Hwang, J. -Y. Choi, I. A. Bond +78

A planetary microlensing signal is generally characterized by a short-term perturbation to the standard single lensing light curve. A subset of binary-source events can produce per…

astro-ph.EP2013★ 75 cited

Microlensing Discovery of a Tight, Low Mass-ratio Planetary-mass Object around an Old, Field Brown Dwarf

C. Han, Y. K. Jung, A. Udalski +67

Observations of accretion disks around young brown dwarfs have led to the speculation that they may form planetary systems similar to normal stars. While there have been several de…

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.EP2013★ 37 cited

A Giant Planet beyond the Snow Line in Microlensing Event OGLE-2011-BLG-0251

N. Kains, R. Street, J. -Y. Choi +128

We present the analysis of the gravitational microlensing event OGLE-2011-BLG-0251. This anomalous event was observed by several survey and follow-up collaborations conducting micr…