activity
20082015
most citedUnbound or Distant Planetary Mass Population Detected by Gravitational Microlensing

522 citations · 4k across the 47 of their papers we have counts for

collaborators
Showing 2013Show all

9 papers · 1 filter

astro-ph.EP2013★ 22 cited

MOA-2008-BLG-379Lb: A Massive Planet from a High Magnification Event with a Faint Source

D. Suzuki, A. Udalski, T. Sumi +31

We report analysis of high microlensing event MOA-2008-BLG-379, which has a strong microlensing anomaly at its peak, due to a massive planet with a mass ratio of q = 6.9 x 10^{-3}.…

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★ 36 cited

MOA-2010-BLG-328Lb: a sub-Neptune orbiting very late M dwarf ?

K. Furusawa, A. Udalski, T. Sumi +119

We analyze the planetary microlensing event MOA-2010-BLG-328. The best fit yields host and planetary masses of Mh = 0.11+/-0.01 M_{sun} and Mp = 9.2+/-2.2M_Earth, corresponding to…

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…

astro-ph.EP2013★ 75 cited

Microlensing Discovery of a Tight, Low Mass-ratio Planetary-mass Object around an Old, Field Brown Dwarf

C. Han, Y. K. Jung, A. Udalski +67

Observations of accretion disks around young brown dwarfs have led to the speculation that they may form planetary systems similar to normal stars. While there have been several de…

astro-ph.GA2013★ 92 cited

The Microlensing Event Rate and Optical Depth Toward the Galactic Bulge from MOA-II

T. Sumi, D. P. Bennett, I. A. Bond +19

We present measurements of the microlensing optical depth and event rate toward the Galactic Bulge based on two years of the MOA-II survey. This sample contains ~1000 microlensing…

astro-ph.EP2013★ 37 cited

A Giant Planet beyond the Snow Line in Microlensing Event OGLE-2011-BLG-0251

N. Kains, R. Street, J. -Y. Choi +128

We present the analysis of the gravitational microlensing event OGLE-2011-BLG-0251. This anomalous event was observed by several survey and follow-up collaborations conducting micr…