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20142026
most citedAbout 30% of Sun-like Stars Have Kepler-like Planetary Systems: A Study of their Intrinsic Architecture

263 citations · 3.1k across the 111 of their papers we have counts for

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Showing 2019Show all

13 papers · 1 filter

astro-ph.IM2019★ 26 cited

Spitzer + VLTI-GRAVITY Measure the Lens Mass of a Nearby Microlensing Event

Weicheng Zang, Subo Dong, Andrew Gould +24

We report the lens mass and distance measurements of the nearby microlensing event TCP J05074264+2447555. We measure the microlens parallax vector using Spitzer and gro…

astro-ph.EP2019★ 23 cited

OGLE-2015-BLG-1771Lb: A Microlens Planet Orbiting an Ultracool Dwarf?

Xiangyu Zhang, Weicheng Zang, Andrzej Udalski +31

We report the discovery and the analysis of the short (tE < 5 days) planetary microlensing event, OGLE-2015-BLG-1771. The event was discovered by the Optical Gravitational Lensing…

astro-ph.EP2019★ 7 cited

KMT-2016-BLG-1836Lb: A Super-Jovian Planet From A High-Cadence Microlensing Field

Hongjing Yang, Xiangyu Zhang, Kyu-Ha Hwang +24

We report the discovery of a super-Jovian planet in the microlensing event KMT-2016-BLG-1836, which was found by the Korea Microlensing Telescope Network's high-cadence observation…

astro-ph.EP2019★ 34 cited

OGLE-2018-BLG-1011L\lowercase{b,c}: Microlensing Planetary System with Two Giant Planets Orbiting a Low-mass Star

Cheongho Han, David P. Bennett, Andrzej Udalski +70

We report a multiplanetary system found from the analysis of microlensing event OGLE-2018-BLG-1011, for which the light curve exhibits a double-bump anomaly around the peak. We fin…

astro-ph.EP2019★ 41 cited

On the patterns observed in Kepler multi-planet systems

Wei Zhu

Recent studies claimed that planets around the same star have similar sizes and masses and regular spacings, and that planet pairs usually show ordered sizes such that the outer pl…

astro-ph.EP2019

KMT-2018-BLG-0029Lb: A Very Low Mass-Ratio Spitzer Microlens Planet

Andrew Gould, Yoon-Hyun Ryu, Sebastiano Calchi Novati +29

At , KMT-2018-BLG-0029Lb has the lowest planet-host mass ratio of any microlensing planet to date by more than a factor of two. Hence, it is the…

astro-ph.EP2019★ 17 cited

OGLE-2018-BLG-0532Lb: Cold Neptune With Possible Jovian Sibling

Yoon-Hyun Ryu, Andrzej Udalski, Jennifer C. Yee +34

We report the discovery of the planet OGLE-2018-BLG-0532Lb, with very obvious signatures in the light curve that lead to an estimate of the planet-host mass ratio $q=M_{\rm planet}…

astro-ph.EP2019★ 17 cited

Parallax of OGLE-2018-BLG-0596: A Low-mass-ratio Planet around an M-dwarf

Youn Kil Jung, Andrew Gould, Andrzej Udalski +63

We report the discovery of a microlensing planet OGLE-2018-BLG-0596Lb, with preferred planet-host mass ratio . The planetary signal, which is chara…

astro-ph.CO2019★ 17 cited

UV Background Fluctuations and Three-Point Correlations in the Large Scale Clustering of the Lyman-alpha Forest

Suk Sien Tie, David H. Weinberg, Paul Martini +4

Using the Ly mass assignment scheme (LyMAS), we make theoretical predictions for the 3-dimensional 3-point correlation function (3PCF) of the Ly forest at redshift . W…

astro-ph.SR2019★ 15 cited

Spitzer Microlensing parallax reveals two isolated stars in the Galactic bulge

Weicheng Zang, Yossi Shvartzvald, Tianshu Wang +90

We report the mass and distance measurements of two single-lens events from the 2017 Spitzer microlensing campaign. The ground-based observations yield the detection of finite-sour…

astro-ph.SR2019★ 17 cited

OGLE-2017-BLG-1186: first application of asteroseismology and Gaussian processes to microlensing

Shun-Sheng Li, Weicheng Zang, Andrzej Udalski +102

We present the analysis of the event OGLE-2017-BLG-1186 from the 2017 Spitzer microlensing campaign. This is a remarkable microlensing event because its source is photometrically b…

astro-ph.SR2019★ 12 cited

Spitzer Microlensing of MOA-2016-BLG-231L : A Counter-Rotating Brown Dwarf Binary in the Galactic Disk

Sun-Ju Chung, Andrew Gould, Jan Skowron +60

We analyze the binary microlensing event MOA-2016-BLG-231, which was observed from the ground and from Spitzer. The lens is composed of very low-mass brown dwarfs (BDs) with $M_1 =…

astro-ph.EP2019★ 8 cited

A Pair of Planets Likely in Mean-motion Resonance From Gravitational Microlensing

Sabrina Madsen, Wei Zhu

We combine statistical arguments and dynamical analysis to study the orbital configuration of the microlensing planetary system OGLE-2012-BLG-0026L. This system is known to host tw…