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

collaborators
Showing 2015Show all

8 papers · 1 filter

astro-ph.GA2015★ 6 cited

No Evidence for Classical Cepheids and a New Dwarf Galaxy Behind the Galactic Disk

P. Pietrukowicz, A. Udalski, M. K. Szymanski +9

Based on data from the ongoing OGLE Galaxy Variability Survey (OGLE GVS) we have verified observed properties of stars detected by the near-infrared VVV survey in a direction near…

astro-ph.SR2015★ 2 cited

The OGLE Collection of Variable Stars. Anomalous Cepheids in the Magellanic Clouds

I. Soszynski, A. Udalski, M. K. Szymanski +10

We present a collection of 250 anomalous Cepheids (ACs) discovered in the OGLE-IV fields toward the Large (LMC) and Small Magellanic Cloud (SMC). The LMC sample is an extension of…

astro-ph.EP2015★ 31 cited

Planet Sensitivity from Combined Ground- and Space-based Microlensing Observations

Wei Zhu, Andrew Gould, Charles Beichman +45

To move one step forward toward a Galactic distribution of planets, we present the first planet sensitivity analysis for microlensing events with simultaneous observations from spa…

astro-ph.SR2015★ 29 cited

A high-velocity bulge RR Lyrae variable on a halo-like orbit

Andrea Kunder, R. Michael Rich, Keith Hawkins +21

We report on the RR Lyrae variable star, MACHO 176.18833.411, located toward the Galactic bulge and observed within the data from the ongoing Bulge RR Lyrae Radial Velocity Assay (…

astro-ph.SR2015★ 39 cited

OGLE Atlas of Classical Novae I. Galactic Bulge Objects

P. Mroz, A. Udalski, R. Poleski +8

Eruptions of classical novae are possible sources of lithium formation and gamma-ray emission. Nova remnants can also become Type Ia supernovae (SNe Ia). The contribution of novae…

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…