activity
20062012
most citedDiscovery of a Cool Planet of 5.5 Earth Masses Through Gravitational Microlensing

596 citations · 3.7k across the 27 of their papers we have counts for

collaborators
Showing astro-ph.EPShow all

13 papers · 1 filter

astro-ph.EP2012★ 19 cited

A possible binary system of a stellar remnant in the high magnification gravitational microlensing event OGLE-2007-BLG-514

N. Miyake, A. Udalski, T. Sumi +78

We report the extremely high magnification (A > 1000) binary microlensing event OGLE-2007-BLG-514. We obtained good coverage around the double peak structure in the light curve via…

astro-ph.EP2012★ 25 cited

OGLE-2008-BLG-510: first automated real-time detection of a weak microlensing anomaly - brown dwarf or stellar binary?

V. Bozza, M. Dominik, N. J. Rattenbury +103

The microlensing event OGLE-2008-BLG-510 is characterised by an evident asymmetric shape of the peak, promptly detected by the ARTEMiS system in real time. The skewness of the ligh…

astro-ph.EP2012★ 99 cited

Planetary and Other Short Binary Microlensing Events from the MOA Short Event Analysis

D. P. Bennett, T. Sumi, I. A. Bond +22

We present the analysis of four candidate short duration binary microlensing events from the 2006-2007 MOA Project short event analysis. These events were discovered as a byproduct…

astro-ph.EP2011★ 124 cited

Discovery and Mass Measurements of a Cold, 10-Earth Mass Planet and Its Host Star

Y. Muraki, C. Han, D. P. Bennett +125

We present the discovery and mass measurement of the cold, low-mass planet MOA-2009-BLG-266Lb, made with the gravitational microlensing method. This planet has a mass of m_p = 10.4…

astro-ph.EP2011★ 522 cited

Unbound or Distant Planetary Mass Population Detected by Gravitational Microlensing

T. Sumi, K. Kamiya, A. Udalski +36

Since 1995, more than 500 exoplanets have been detected using different techniques, of which 11 were detected with gravitational microlensing. Most of these are gravitationally bou…

astro-ph.EP2011★ 183 cited

MOA-2009-BLG-387Lb: A massive planet orbiting an M dwarf

Virginie Batista, A. Gould, S. Dieters +25

We report the discovery of a planet with a high planet-to-star mass ratio in the microlensing event MOA-2009-BLG-387, which exhibited pronounced deviations over a 12-day interval,…

astro-ph.EP2010★ 42 cited

A sub-Saturn Mass Planet, MOA-2009-BLG-319Lb

N. Miyake, T. Sumi, Subo Dong +119

We report the gravitational microlensing discovery of a sub-Saturn mass planet, MOA-2009-BLG-319Lb, orbiting a K or M-dwarf star in the inner Galactic disk or Galactic bulge. The h…

astro-ph.EP2010★ 100 cited

Measurements of Transit Timing Variations for WASP-5b

Akihiko Fukui, Norio Narita, Paul J. Tristram +34

We have observed 7 new transits of the `hot Jupiter' WASP-5b using a 61 cm telescope located in New Zealand, in order to search for transit timing variations (TTVs) which can be in…

astro-ph.EP2010★ 217 cited

A Cold Neptune-Mass Planet OGLE-2007-BLG-368Lb: Cold Neptunes Are Common

T. Sumi, D. P. Bennett, I. A. Bond +104

We present the discovery of a Neptune-mass planet OGLE-2007-BLG-368Lb with a planet-star mass ratio of q=[9.5 +/- 2.1] x 10^{-5} via gravitational microlensing. The planetary devia…

astro-ph.EP2009★ 4 cited

Interpretation of Strong Short-Term Central Perturbations in the Light Curves of Moderate-Magnification Microlensing Events

C. Han, K. -H. Hwang, D. Kim +87

To improve the planet detection efficiency, current planetary microlensing experiments are focused on high-magnification events searching for planetary signals near the peak of len…

astro-ph.EP2009★ 168 cited

Masses and Orbital Constraints for the OGLE-2006-BLG-109Lb,c Jupiter/Saturn Analog Planetary System

D. P. Bennett, S. H. Rhie, S. Nikolaev +70

We present a new analysis of the Jupiter+Saturn analog system, OGLE-2006-BLG-109Lb,c, which was the first double planet system discovered with the gravitational microlensing method…

astro-ph.EP2009★ 74 cited

Extreme Magnification Microlensing Event OGLE-2008-BLG-279: Strong Limits on Planetary Companions to the Lens Star

J. C. Yee, A. Udalski, T. Sumi +14

We analyze the extreme high-magnification microlensing event OGLE-2008-BLG-279, which peaked at a maximum magnification of A ~ 1600 on 30 May 2008. The peak of this event exhibits…

astro-ph.EP2009★ 31 cited

Mass measurement of a single unseen star and planetary detection efficiency for OGLE 2007-BLG-050

V. Batista, Subo Dong, A. Gould +93

We analyze OGLE-2007-BLG-050, a high magnification microlensing event (A ~ 432) whose peak occurred on 2 May, 2007, with pronounced finite-source and parallax effects. We compute p…