activity
20132026
most citedThe Exoplanet Mass-Ratio Function from the MOA-II Survey: Discovery of a Break and Likely Peak at a Neptune Mass

278 citations · 3.3k across the 124 of their papers we have counts for

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Showing 2018 · astro-ph.EPShow all

12 papers · 2 filters

astro-ph.EP2018★ 98 cited

Microlensing Results Challenge the Core Accretion Runaway Growth Scenario for Gas Giants

Daisuke Suzuki, David P. Bennett, Shigeru Ida +14

We compare the planet-to-star mass-ratio distribution measured by gravitational microlensing to core accretion theory predictions from population synthesis models. The core accreti…

astro-ph.EP2018★ 12 cited

First assessment of the binary lens OGLE-2015_BLG-0232

E. Bachelet, V. Bozza, C. Han +51

We present an analysis of the microlensing event OGLE-2015-BLG-0232. This event is challenging to characterize for two reasons. First, the light curve is not well sampled during th…

astro-ph.EP2018★ 71 cited

Two new free-floating or wide-orbit planets from microlensing

P. Mroz, A. Udalski, D. P. Bennett +57

Planet formation theories predict the existence of free-floating planets that have been ejected from their parent systems. Although they emit little or no light, they can be detect…

astro-ph.EP2018★ 13 cited

OGLE-2015-BLG-1670Lb: A Cold Neptune beyond the Snow Line in the Provisional WFIRST Microlensing Survey Field

Clément Ranc, David P. Bennett, Yuki Hirao +56

We present the analysis of the microlensing event OGLE-2015-BLG-1670, detected in a high-extinction field, very close to the Galactic plane. Due to the dust extinction along the li…

astro-ph.EP2018★ 23 cited

MOA-2016-BLG-319Lb: Microlensing Planet Subject to Rare Minor-Image Perturbation Degeneracy in Determining Planet Parameter

Cheongho Han, Ian A. Bond, Andrew Gould +42

We present the analysis of the planetary microlensing event MOA-2016-BLG-319. The event light curve is characterized by a brief ( days) anomaly near the peak produced by mi…

astro-ph.EP2018★ 71 cited

WFIRST Exoplanet Mass Measurement Method Finds a Planetary Mass of for OGLE-2012-BLG-0950Lb

A. Bhattacharya, J. P. Beaulieu, D. P. Bennett +13

We present the analysis of the simultaneous high resolution images from the {\it Hubble Space Telescope} and Keck Adaptive Optics system of the planetary event OGLE-2012-BLG-0950 t…

astro-ph.EP2018★ 23 cited

A Planetary Microlensing Event with an Unusually Red Source Star: MOA-2011-BLG-291

David P. Bennett, Andrzej Udalski, Ian A. Bond +43

We present the analysis of planetary microlensing event MOA-2011-BLG-291, which has a mass ratio of and a source star that is redder (or brighter) than…

astro-ph.EP2018★ 7 cited

OGLE-2017-BLG-0482Lb: A Microlensing Super-Earth Orbiting a Low-mass Host Star

C. Han, Y. Hirao, A. Udalski +62

We report the discovery of a planetary system in which a super-earth orbits a late M-dwarf host. The planetary system was found from the analysis of the microlensing event OGLE-201…

astro-ph.EP2018★ 8 cited

The WFIRST Exoplanet Microlensing Survey

David P. Bennett, Rachel Akeson, Jay Anderson +71

The Wide Field Infrared Survey Telescope (WFIRST) was the top ranked large space mission in the 2010 New Worlds, New Horizons decadal survey, and it was formed by merging the scien…

astro-ph.EP2018★ 3 cited

White Paper: Exoplanetary Microlensing from the Ground in the 2020s

Jennifer C. Yee, Jay Anderson, Rachel Akeson +25

Microlensing can access planet populations that no other method can probe: cold wide-orbit planets beyond the snow line, planets in both the Galactic bulge and disk, and free float…

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.EP2018★ 24 cited

Spitzer Microlensing Parallax for OGLE-2016-BLG-1067: a sub-Jupiter Orbiting an M-dwarf in the Disk

S. Calchi Novati, D. Suzuki, A. Udalski +65

We report the discovery of a sub-Jupiter mass planet orbiting beyond the snow line of an M-dwarf most likely in the Galactic disk as part of the joint Spitzer and ground-based moni…