CAOSP abstracts, Volume: 54, No.: 2, year: 2024

Author(s): Soszyński, I.
Journal: Contributions of the Astronomical Observatory Skalnaté Pleso, vol. 54, no. 2, p. 234-248.
Date: 02/2024
Title: Three decades of the OGLE survey
Keyword(s): Surveys, Gravitational microlensing, Planetary systems, Variable stars, Cepheids, Galaxy: structure, Catalogs
Pages: 234 -- 248
DOI: https://doi.org/10.31577/caosp.2024.54.2.234
NASA ADS Abstract Service: 2024CoSka..54b.234S
Citation:
License: This work is licensed under a Creative Commons Attribution 4.0 International License

Abstract: The Optical Gravitational Lensing Experiment (OGLE) is one of the most extensive sky surveys on a global scale. It focuses on optical astrophysical variability and is carried out using the dedicated 1.3-meter Warsaw Telescope located at Las Campanas Observatory in Chile. Since 1992, the OGLE project has been continuously observing the densest regions of the southern sky, namely, the Galactic bulge, Galactic disk, and Magellanic Clouds. To date, the survey has collected over a trillion individual photometric observations for approximately two billion stars. Throughout its long history, the OGLE project has yielded significant contributions to various fields of astrophysics, including gravitational lensing and microlensing, dark matter, exoplanets, variable stars, the structure of the Milky Way and other galaxies, and more. This article presents the most significant achievements of OGLE over the past 30 years.