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 · 4.4k across the 186 of their papers we have counts for

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Showing 2015Show all

10 papers · 1 filter

astro-ph.EP2015★ 19 cited

MOA 2011-BLG-028Lb: a Neptune-mass Microlensing Planet in the Galactic Bulge

J. Skowron, A. Udalski, R. Poleski +35

We present the discovery of a Neptune-mass planet orbiting a 0.8 +- 0.3 M_Sun star in the Galactic bulge. The planet manifested itself during the microlensing event MOA 2011-BLG-02…

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★ 12 cited

Red noise versus planetary interpretations in the microlensing event OGLE-2013-BLG-446

E. Bachelet, D. M. Bramich, C. Han +98

For all exoplanet candidates, the reliability of a claimed detection needs to be assessed through a careful study of systematic errors in the data to minimize the false positives r…

astro-ph.EP2015★ 20 cited

MOA-2010-BLG-353Lb A Possible Saturn Revealed

N. J. Rattenbury, D. P. Bennett, T. Sumi +30

We report the discovery of a possible planet in microlensing event MOA-2010-BLG-353. This event was only recognised as having a planetary signal after the microlensing event had fi…

astro-ph.EP2015★ 120 cited

The frequency of snowline-region planets from four-years of OGLE-MOA-Wise second-generation microlensing

Y. Shvartzvald, D. Maoz, A. Udalski +35

We present a statistical analysis of the first four seasons from a "second-generation" microlensing survey for extrasolar planets, consisting of near-continuous time coverage of 8…

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…

astro-ph.EP2015★ 31 cited

Planet Sensitivity from Combined Ground- and Space-based Microlensing Observations

Wei Zhu, Andrew Gould, Charles Beichman +45

To move one step forward toward a Galactic distribution of planets, we present the first planet sensitivity analysis for microlensing events with simultaneous observations from spa…

astro-ph.EP2015★ 85 cited

OGLE-2012-BLG-0563Lb: a Saturn-mass Planet around an M Dwarf with the Mass Constrained by Subaru AO imaging

A. Fukui, A. Gould, T. Sumi +58

We report the discovery of a microlensing exoplanet OGLE-2012-BLG-0563Lb with the planet-star mass ratio ~1 x 10^{-3}. Intensive photometric observations of a high-magnification mi…

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…