activity
20152018
most citedThe Exoplanet Mass-Ratio Function from the MOA-II Survey: Discovery of a Break and Likely Peak at a Neptune Mass

278 citations · 823 across the 14 of their papers we have counts for

collaborators

14 papers

astro-ph.EP2018★ 20 cited

A Likely Detection of a Two-Planet System in a Low Magnification Microlensing Event

D. Suzuki, D. P. Bennett, A. Udalski +37

We report on the analysis of a microlensing event OGLE-2014-BLG-1722 that showed two distinct short term anomalies. The best fit model to the observed light curves shows that the t…

astro-ph.EP2017★ 25 cited

The First Planetary Microlensing Event with Two Microlensed Source Stars

D. P. Bennett, A. Udalski, C. Han +64

We present the analysis of microlensing event MOA-2010-BLG-117, and show that the light curve can only be explained by the gravitational lensing of a binary source star system by a…

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.EP2016★ 278 cited

The Exoplanet Mass-Ratio Function from the MOA-II Survey: Discovery of a Break and Likely Peak at a Neptune Mass

D. Suzuki, D. P. Bennett, T. Sumi +26

We report the results of the statistical analysis of planetary signals discovered in MOA-II microlensing survey alert system events from 2007 to 2012. We determine the survey sensi…

astro-ph.EP2016★ 6 cited

Faint source star planetary microlensing: the discovery of the cold gas giant planet OGLE-2014-BLG-0676Lb

N. J. Rattenbury, D. P. Bennett, T. Sumi +85

We report the discovery of a planet --- OGLE-2014-BLG-0676Lb --- via gravitational microlensing. Observations for the lensing event were made by the MOA, OGLE, Wise, RoboNET/LCOGT,…

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.EP2016★ 119 cited

The First Circumbinary Planet Found by Microlensing: OGLE-2007-BLG-349L(AB)c

D. P. Bennett, S. H. Rhie, A. Udalski +79

We present the analysis of the first circumbinary planet microlensing event, OGLE-2007-BLG-349. This event has a strong planetary signal that is best fit with a mass ratio of $q \a…

astro-ph.EP2016★ 35 cited

OGLE-2012-BLG-0950Lb: The First Planet Mass Measurement from Only Microlens Parallax and Lens Flux

N. Koshimoto, A. Udalski, J. P. Beaulieu +38

We report the discovery of a microlensing planet OGLE-2012-BLG-0950Lb with the planet/host mass ratio of . A long term distortion detected in both MOA and…

astro-ph.EP2016★ 26 cited

First simultaneous microlensing observations by two space telescopes: & reveal a brown dwarf in event OGLE-2015-BLG-1319

Y. Shvartzvald, Z. Li, A. Udalski +90

Simultaneous observations of microlensing events from multiple locations allow for the breaking of degeneracies between the physical properties of the lensing system, specifically…

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.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.EP2015★ 73 cited

Campaign 9 of the Mission: Observational Parameters, Scientific Drivers, and Community Involvement for a Simultaneous Space- and Ground-based Microlensing Survey

Calen B. Henderson, Radosław Poleski, Matthew Penny +118

's Campaign 9 (C9) will conduct a 3.7 deg survey toward the Galactic bulge from 7/April through 1/July of 2016 that will leverage the spatial separation between…

astro-ph.EP2015★ 56 cited

The First Neptune Analog or Super-Earth with Neptune-like Orbit: MOA-2013-BLG-605Lb

T. Sumi, A. Udalski, D. P. Bennett +46

We present the discovery of the first Neptune analog exoplanet or super-Earth with Neptune-like orbit, MOA-2013-BLG-605Lb. This planet has a mass similar to that of Neptune or a su…

astro-ph.EP2015★ 119 cited

Spitzer Parallax of OGLE-2015-BLG-0966: A Cold Neptune in the Galactic Disk

R. A. Street, A. Udalski, S. Calchi Novati +106

We report the detection of a Cold Neptune m_planet=21+/-2MEarth orbiting a 0.38MSol M dwarf lying 2.5-3.3 kpc toward the Galactic center as part of a campaign combining ground-base…