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

collaborators
Showing 2021Show all

14 papers · 1 filter

astro-ph.EP2021★ 2 cited

OGLE-2014-BLG-0319: A Sub-Jupiter-Mass Planetary Event Encountered Degeneracy with Different Mass Ratios and Lens-Source Relative Proper Motions

Shota Miyazaki, Daisuke Suzuki, Andrzej Udalski +36

We report the discovery of a sub-Jovian-mass planet, OGLE-2014-BLG-0319Lb. The characteristics of this planet will be added into a future extended statistical analysis of the Micro…

astro-ph.EP2021★ 12 cited

KMT-2021-BLG-0912Lb: A microlensing super Earth around a K-type star

Cheongho Han, Ian A. Bond, Jennifer C. Yee +55

The light curve of the microlensing event KMT-2021-BLG-0912 exhibits a very short anomaly relative to a single-lens single-source form. We investigate the light curve for the purpo…

astro-ph.EP2021★ 80 cited

A Jovian analogue orbiting a white dwarf star

J. W. Blackman, J-P. Beaulieu, D. P. Bennett +13

Studies have shown that remnants of destroyed planets and debris-disk planetesimals can survive the volatile evolution of their host stars into white dwarfs, but detection of intac…

astro-ph.EP2021

KMT-2021-BLG-0322: Severe degeneracy between triple-lens and higher-order binary-lens interpretations

Cheongho Han, Andrew Gould, Yuki Hirao +46

We investigate the microlensing event KMT-2021-BLG-0322, for which the light curve exhibits three distinctive sets of caustic-crossing features. It is found that the overall featur…

astro-ph.EP2021★ 20 cited

No Large Dependence of Planet Frequency on Galactocentric Distance

Naoki Koshimoto, David P. Bennett, Daisuke Suzuki +1

Gravitational microlensing is currently the only technique that helps study the Galactic distribution of planets as a function of distance from the Galactic center. The Galactic lo…

astro-ph.EP2021★ 3 cited

OGLE-2017-BLG-1434Lb: Confirmation of a Cold Super-Earth using Keck Adaptive Optics

J. W. Blackman, J. -P. Beaulieu, A. A. Cole +5

The microlensing event OGLE-2017-BLG-1434 features a cold super-Earth planet which is one of eleven microlensing planets with a planet-host star mass ratio .…

astro-ph.EP2021★ 1 cited

New Giant Planet beyond the Snow Line for an Extended MOA Exoplanet Microlens Sample

Clément Ranc, David P. Bennett, Richard K. Barry +28

Characterizing a planet detected by microlensing is hard if the planetary signal is weak or the lens-source relative trajectory is far from caustics. However, statistical analyses…

astro-ph.EP2021★ 48 cited

Systematic KMTNet Planetary Anomaly Search, Paper II: Six New Mass-ratio Planets

Kyu-Ha Hwang, Weicheng Zang, Andrew Gould +62

We apply the automated AnomalyFinder algorithm of Paper I (Zang et al. 2021b) to 2018-2019 light curves from the covered by the six KMTNet prime fields, wi…

astro-ph.GA2021★ 41 cited

A Parametric Galactic Model toward the Galactic Bulge Based on Gaia and Microlensing Data

Naoki Koshimoto, Junichi Baba, David P. Bennett

We developed a parametric Galactic model toward the Galactic bulge by fitting to spatial distributions of the Gaia DR2 disk velocity, VVV proper motion, BRAVA radial velocity, OGLE…

astro-ph.EP2021★ 12 cited

MOA-2006-BLG-074: recognizing xallarap contaminants in planetary microlensing

P. Rota, Y. Hirao, V. Bozza +23

MOA-2006-BLG-074 was selected as one of the most promising planetary candidates in a retrospective analysis of the MOA collaboration: its asymmetric high-magnification peak can be…

astro-ph.EP2021

OGLE-2018-BLG-1185b : A Low-Mass Microlensing Planet Orbiting a Low-Mass Dwarf

Iona Kondo, Jennifer C. Yee, David P. Bennett +94

We report the analysis of planetary microlensing event OGLE-2018-BLG-1185, which was observed by a large number of ground-based telescopes and by the Space Telescope. The…

astro-ph.EP2021★ 61 cited

Systematic KMTNet Planetary Anomaly Search, Paper I: OGLE-2019-BLG-1053Lb, A Buried Terrestrial Planet

Weicheng Zang, Kyu-Ha Hwang, Andrzej Udalski +69

In order to exhume the buried signatures of "missing planetary caustics" in the KMTNet data, we conducted a systematic anomaly search to the residuals from point-source point-lens…

astro-ph.EP2021★ 12 cited

KMT-2019-BLG-0371 and the Limits of Bayesian Analysis

Yun Hak Kim, Sun-Ju Chung, Jennifer C. Yee +54

We show that the perturbation at the peak of the light curve of microlensing event KMT-2019-BLG-0371 is explained by a model with a mass ratio between the host star and planet of $…

astro-ph.EP2021★ 7 cited

OGLE-2019-BLG-0960Lb: The Smallest Microlensing Planet

Jennifer C. Yee, Weicheng Zang, Andrzej Udalski +80

We report the analysis of OGLE-2019-BLG-0960, which contains the smallest mass-ratio microlensing planet found to date (q = 1.2--1.6 x 10^{-5} at 1-sigma). Although there is substa…