activity
20142022
most citedDeciphering the 3D structure of the old Galactic bulge from the OGLE RR Lyrae stars

175 citations · 1.4k across the 45 of their papers we have counts for

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Showing 2017Show all

10 papers · 1 filter

astro-ph.EP2017★ 36 cited

OGLE-2016-BLG-1190Lb: First Spitzer Bulge Planet Lies Near the Planet/Brown-Dwarf Boundary

Y. -H. Ryu, J. C. Yee, A. Udalski +106

We report the discovery of OGLE-2016-BLG-1190Lb, which is likely to be the first Spitzer microlensing planet in the Galactic bulge/bar, an assignation that can be confirmed by two…

astro-ph.EP2017★ 30 cited

OGLE-2015-BLG-1459L: The Challenges of Exo-Moon Microlensing

K. -H. Hwang, A. Udalski, I. A. Bond +57

We show that dense OGLE and KMTNet -band survey data require four bodies (sources plus lenses) to explain the microlensing light curve of OGLE-2015-BLG-1459. However, these can…

astro-ph.EP2017★ 38 cited

OGLE-2016-BLG-0613LABb: A Microlensing Planet in a Binary System

C. Han, A. Udalski, A. Gould +37

We present the analysis of OGLE-2016-BLG-0613, for which the lensing light curve appears to be that of a typical binary-lens event with two caustic spikes but with a discontinuous…

astro-ph.EP2017★ 27 cited

An Isolated Microlens Observed from K2, Spitzer and Earth

Wei Zhu, A. Udalski, C. Huang +50

We present the result of microlensing event MOA-2016-BLG-290, which received observations from the two-wheel Kepler (K2), Spitzer, as well as ground-based observatories. A joint an…

astro-ph.EP2017★ 15 cited

OGLE-2016-BLG-0263L\lowercase{b}: Microlensing Detection of a Very Low-mass Binary Companion Through a Repeating Event Channel

C. Han, A. Udalski, A. Gould +51

We report the discovery of a planet-mass companion to the microlens OGLE-2016-BLG-0263L. Unlike most low-mass companions that were detected through perturbations to the smooth and…

astro-ph.SR2017

Searching for Potential Mergers among 22 500 Eclipsing Binary Stars in the OGLE-III Galactic Bulge Fields

P. Pietrukowicz, I. Soszynski, A. Udalski +8

Inspired by the discovery of the red nova V1309 Sco (Nova Scorpii 2008) and the fact that its progenitor was a binary system with a rapidly decreasing orbital period, we have searc…