output
20042023
most citedUnbound or Distant Planetary Mass Population Detected by Gravitational Microlensing

522 citations

Showing astro-ph.SRShow all

13 papers · 1 filter

astro-ph.SR2018★ 8 cited

OGLE-2017-BLG-0039: Microlensing Event with Light from the Lens Identified from Mass Measurement

C. Han, Y. K. Jung, A. Udalski +58

We present the analysis of the caustic-crossing binary microlensing event OGLE-2017-BLG-0039. Thanks to the very long duration of the event, with an event time scale $t_{\rm E}\sim…

astro-ph.SR2018★ 22 cited

A study of light travel time effect in short-period MOA eclipsing binaries via eclipse timing

M. C. A. Li, N. J. Rattenbury, I. A. Bond +23

A sample of 542 eclipsing binaries (EBs) with periods shorter than 2 d were selected from the Microlensing Observations in Astrophysics (MOA) EB catalogue (Li et al. 2017) for ecli…

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.SR2013★ 51 cited

Probe of the Solar Magnetic Field Using the "Cosmic-Ray Shadow" of the Sun

M. Amenomori, X. J. Bi, D. Chen +77

We report on a clear solar-cycle variation of the Sun's shadow in the 10 TeV cosmic-ray flux observed by the Tibet air shower array during a full solar cycle from 1996 to 2009. In…

astro-ph.SR2012★ 9 cited

Using Orbital Effects to Break the Close/wide Degeneracy in Binary-lens Microlensing Events

I. -G. Shin, T. Sumi, A. Udalski +37

Microlensing can provide an important tool to study binaries, especially those composed of faint or dark objects. However, accurate analysis of binary-lens light curves is often ha…

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.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…

astro-ph.SR2011★ 14 cited

Microlensing Binaries Discovered through High-Magnification Channel

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

Microlensing can provide a useful tool to probe binary distributions down to low-mass limits of binary companions. In this paper, we analyze the light curves of 8 binary lensing ev…

astro-ph.SR2011★ 5 cited

OGLE-2009-BLG-023/MOA-2009-BLG-028: Characterization of a Binary Microlensing Event Based on Survey Data

K. -H. Hwang, C. Han, A. Udalski +37

We report the result of the analysis of the light curve of a caustic-crossing binary-lens microlensing event OGLE-2009-BLG-023/MOA-2009-BLG-028. Even though the event was observed…

astro-ph.SR2010★ 42 cited

OGLE-2009-BLG-092/MOA-2009-BLG-137: A Dramatic Repeating Event With the Second Perturbation Predicted by Real-Time Analysis

Y. -H. Ryu, C. Han, K. -H. Hwang +105

We report the result of the analysis of a dramatic repeating gravitational microlensing event OGLE-2009-BLG-092/MOA-2009-BLG-137, for which the light curve is characterized by two…

astro-ph.SR2010★ 35 cited

OGLE-2005-BLG-153: Microlensing Discovery and Characterization of A Very Low Mass Binary

K. -H. Hwang, A. Udalski, C. Han +77

The mass function and statistics of binaries provide important diagnostics of the star formation process. Despite this importance, the mass function at low masses remains poorly kn…

astro-ph.SR2010★ 6 cited

Determining the Physical Lens Parameters of the Binary Gravitational Microlensing Event MOA-2009-BLG-016

K. -H. Hwang, C. Han, I. A. Bond +39

We report the result of the analysis of the light curve of the microlensing event MOA-2009-BLG-016. The light curve is characterized by a short-duration anomaly near the peak and a…

astro-ph.SR2010★ 15 cited

OGLE 2008--BLG--290: An accurate measurement of the limb darkening of a Galactic Bulge K Giant spatially resolved by microlensing

P. Fouque, D. Heyrovsky, S. Dong +115

Gravitational microlensing is not only a successful tool for discovering distant exoplanets, but it also enables characterization of the lens and source stars involved in the lensi…