2005/05/06 by M. A. T. Groenewegen
Physics and Astronomy · #Astronomy and Astrophysical Research #Bulge #Large Magellanic Cloud #Light curve #Milky Way #Scientific Research and Discoveries #Stars #Stellar, planetary, and galactic studies #Variable star #astro-ph
paper · pdf · doi:10.1051/0004-6361:20052886
accepted Astronomy and Astrophysics
arxiv created 2005/05/06 · openalex publication_date 2005/07/29 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The 222 000 I-band light curves of variable stars detected by the ogle-ii survey in the direction of the Galactic Bulge have been searched for eclipsing binaries (EBs). A previously developed code to analyze lightcurve shapes and identify long period variables (LPVs) has been adapted to identify EBs. The parameters in the modified code have been optimised to recover a list of about 140 detached EBs in the Small Magellanic Cloud previously identified in the literature as particularly well suited for distance estimates (and wich have periods 0.85 days). The power of the code is demonstrated by identifying 16 and 178 previously uncatalogued EBs in the SMC and LMC, respectively. Among the 222 000 variable stars in the direction of the Galactic Bulge 3053 EBs have been identified. Periods and phased lightcurves are presented.