activity
19992018
most citedReal-Time Difference Imaging Analysis of MOA Galactic Bulge Observations During 2000

527 citations · 3.6k across the 47 of their papers we have counts for

collaborators
Showing astro-ph.SRShow all

12 papers · 1 filter

astro-ph.SR2018★ 10 cited

OGLE-2014-BLG-0289: Precise Characterization of a Quintuple-Peak Gravitational Microlensing Event

A. Udalski, C. Han, V. Bozza +63

We present the analysis of the binary-microlensing event OGLE-2014-BLG-0289. The event light curve exhibits very unusual five peaks where four peaks were produced by caustic crossi…

astro-ph.SR2017★ 14 cited

OGLE-2016-BLG-1469L: Microlensing Binary Composed of Brown Dwarfs

C. Han, A. Udalski, T. Sumi +50

We report the discovery of a binary composed of two brown dwarfs, based on the analysis of the microlensing event OGLE-2016-BLG-1469. Thanks to detection of both finite-source and…

astro-ph.SR2017★ 17 cited

OGLE-2016-BLG-1003: First Resolved Caustic-crossing Binary-source Event Discovered by Second-generation Microlensing Surveys

Y. K. Jung, A. Udalski, I. A. Bond +50

We report the analysis of the first resolved caustic-crossing binary-source microlensing event OGLE-2016-BLG-1003. The event is densely covered by the round-the-clock observations…

astro-ph.SR2016★ 18 cited

Binary Source Microlensing Event OGLE-2016-BLG-0733: Interpretation of A Long-term Asymmetric Perturbation

Y. K. Jung, A. Udalski, J. C. Yee +50

In the process of analyzing an observed light curve, one often confronts various scenarios that can mimic the planetary signals causing difficulties in the accurate interpretation…

astro-ph.SR2014★ 19 cited

Candidate Gravitational Microlensing Events for Future Direct Lens Imaging

C. B. Henderson, H. Park, T. Sumi +76

The mass of the lenses giving rise to Galactic microlensing events can be constrained by measuring the relative lens-source proper motion and lens flux. The flux of the lens can be…

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…