activity
20132015
most citedA Sub-Earth-Mass Moon Orbiting a Gas Giant Primary or a High Velocity Planetary System in the Galactic Bulge

175 citations · 723 across the 12 of their papers we have counts for

collaborators

12 papers

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…

astro-ph.EP2014★ 129 cited

Pathway to the Galactic Distribution of Planets: Combined Spitzer and Ground-Based Microlens Parallax Measurements of 21 Single-Lens Events

S. Calchi Novati, A. Gould, A. Udalski +82

We present microlens parallax measurements for 21 (apparently) isolated lenses observed toward the Galactic bulge that were imaged simultaneously from Earth and Spitzer, which was…

astro-ph.EP2014★ 36 cited

OGLE-2011-BLG-0265Lb: a Jovian Microlensing Planet Orbiting an M Dwarf

J. Skowron, I. -G. Shin, A. Udalski +121

We report the discovery of a Jupiter-mass planet orbiting an M-dwarf star that gave rise to the microlensing event OGLE-2011-BLG-0265. Such a system is very rare among known planet…

astro-ph.EP2014★ 116 cited

A Terrestrial Planet in a ~1 AU Orbit Around One Member of a ~15 AU Binary

A. Gould, A. Udalski, I. -G. Shin +61

We detect a cold, terrestrial planet in a binary-star system using gravitational microlensing. The planet has low mass (2 Earth masses) and lies projected at ~ 0.8 a…

astro-ph.SR2014★ 57 cited

OGLE-2013-BLG-0102LA,B: Microlensing binary with components at star/brown-dwarf and brown-dwarf/planet boundaries

Y. K. Jung, A. Udalski, T. Sumi +51

We present the analysis of the gravitational microlensing event OGLE-2013-BLG-0102. The light curve of the event is characterized by a strong short-term anomaly superposed on a smo…

astro-ph.EP2014★ 10 cited

OGLE-2012-BLG-0455/MOA-2012-BLG-206: Microlensing event with ambiguity in planetary interpretations caused by incomplete coverage of planetary signal

H. Park, C. Han, A. Gould +55

Characterizing a microlensing planet is done from modeling an observed lensing light curve. In this process, it is often confronted that solutions of different lensing parameters r…

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.EP2014★ 20 cited

MOA-2013-BLG-220Lb: Massive Planetary Companion to Galactic-Disk Host

J. C. Yee, C. Han, A. Gould +70

We report the discovery of MOA-2013-BLG-220Lb, which has a super-Jupiter mass ratio relative to its host. The proper motion, $μ=12.5\pm 1\, {\rm mas}…

astro-ph.EP2013★ 175 cited

A Sub-Earth-Mass Moon Orbiting a Gas Giant Primary or a High Velocity Planetary System in the Galactic Bulge

D. P. Bennett, V. Batista, I. A. Bond +90

We present the first microlensing candidate for a free-floating exoplanet-exomoon system, MOA-2011-BLG-262, with a primary lens mass of M_host ~ 4 Jupiter masses hosting a sub-Eart…

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.EP2013★ 66 cited

MOA-2011-BLG-322Lb: a "second generation survey" microlensing planet

Y. Shvartzvald, D. Maoz, S. Kaspi +37

Global "second-generation" microlensing surveys aim to discover and characterize extrasolar planets and their frequency, by means of round-the-clock high-cadence monitoring of a la…

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…