activity
20042016
most citedDiscovery of a Jupiter/Saturn Analog with Gravitational Microlensing

366 citations · 1.7k across the 37 of their papers we have counts for

collaborators

37 papers

astro-ph.EP2016★ 9 cited

OGLE-2012-BLG-0724Lb: A Saturn-mass Planet around an M-dwarf

Y. Hirao, A. Udalski, T. Sumi +35

We report the discovery of a planet by the microlensing method, OGLE-2012-BLG-0724Lb. Although the duration of the planetary signal for this event was one of the shortest seen for…

astro-ph.SR2016★ 15 cited

OGLE-2014-BLG-0257L: A Microlensing Brown Dwarf Orbiting a Low-mass M Dwarf

C. Han, Y. K. Jung, A. Udalski +10

In this paper, we report the discovery of a binary composed of a brown dwarf and a low-mass M dwarf from the observation of the microlensing event OGLE-2014-BLG-0257. Resolution of…

astro-ph.EP2016★ 25 cited

Spitzer Observations of OGLE-2015-BLG-1212 Reveal a New Path to Breaking Strong Microlens Degeneracies

V. Bozza, Y. Shvartzvald, A. Udalski +98

Spitzer microlensing parallax observations of OGLE-2015-BLG-1212 decisively breaks a degeneracy between planetary and binary solutions that is somewhat ambiguous when only ground-b…

astro-ph.SR2015★ 2 cited

Ultra-Short-Period Binary Systems in the OGLE Fields Toward the Galactic Bulge

I. Soszynski, K. Stepien, B. Pilecki +11

We present a sample of 242 ultra-short-period (P < 0.22 d) eclipsing and ellipsoidal binary stars identified in the OGLE fields toward the Galactic bulge. Based on the light curve…

astro-ph.SR2015★ 12 cited

OGLE-2013-BLG-0578L: Microlensing Binary Composed of A Brown Dwarf And An M Dwarf

H. Park, A. Udalski, C. Han +9

Determining physical parameters of binary microlenses is hampered by the lack of information about the angular Einstein radius due to the difficulty of resolving caustic crossings.…

astro-ph.EP2015★ 5 cited

Reanalyses of Anomalous Gravitational Microlensing Events in the OGLE-III Early Warning System Database with Combined Data

J. Jeong, H. Park, C. Han +95

We reanalyze microlensing events in the published list of anomalous events that were observed from the OGLE lensing survey conducted during 2004-2008 period. In order to check the…