activity
20102025
most citedAn eclipsing binary distance to the Large Magellanic Cloud accurate to 2 per cent

691 citations · 1.3k across the 10 of their papers we have counts for

collaborators

10 papers

astro-ph.EP2025

KMT-2024-BLG-0404L: A triple microlensing system consisting of a star, a brown dwarf, and a planet

Cheongho Han, Andrzej Udalski, Chung-Uk Lee +29

We have investigated the lensing event KMT-2024-BLG-0404. The light curve of the event exhibited a complex structure with multiple distinct features, including two prominent causti…

astro-ph.EP2024★ 2 cited

OGLE-2015-BLG-1609Lb: Sub-jovian planet orbiting a low-mass stellar or brown dwarf host

M. J. Mróz, R. Poleski, A. Udalski +70

We present a comprehensive analysis of a planetary microlensing event OGLE-2015-BLG-1609. The planetary anomaly was detected by two survey telescopes, OGLE and MOA. Each of these s…

astro-ph.IM2016★ 10 cited

Analysis of photometric uncertainties in the OGLE-IV Galactic Bulge microlensing survey data

J. Skowron, A. Udalski, S. Kozłowski +8

We present a statistical assessment of both, observed and reported, photometric uncertainties in the OGLE-IV Galactic bulge microlensing survey data. This dataset is widely used fo…

astro-ph.SR2015★ 2 cited

Ultra-Short-Period Binary Systems in the OGLE Fields Toward the Galactic Bulge

I. Soszynski, K. Stepien, B. Pilecki +11

We present a sample of 242 ultra-short-period (P < 0.22 d) eclipsing and ellipsoidal binary stars identified in the OGLE fields toward the Galactic bulge. Based on the light curve…

astro-ph.CO2013★ 7 cited

Distance to the SMC from eclipsing binaries

Dariusz Graczyk, Grzegorz Pietrzynski, Bogumił Pilecki +5

The preliminary distance to a long period eclipsing binary in the Small Magellanic Cloud SMC108.1.14904 is presented. The binary system contains two non-active G-type bright giants…

astro-ph.GA2013★ 691 cited

An eclipsing binary distance to the Large Magellanic Cloud accurate to 2 per cent

G. Pietrzyński, D. Graczyk, W. Gieren +25

In the era of precision cosmology it is essential to determine the Hubble Constant with an accuracy of 3% or better. Currently, its uncertainty is dominated by the uncertainty in t…