Difference Image Analysis of the OGLE-II Bulge Data. III. Catalog of 200,000 Candidate Variable Stars

Abstract

We present the first edition of a catalog of variable stars from OGLE-II Galactic Bulge data covering 3 years: 1997-1999. Typically 200-300 I band data points are available in 49 fields between -11 and 11 degrees in galactic longitude, totaling roughly 11 square degrees in sky coverage. Photometry was obtained using the Difference Image Analysis (DIA) software and tied to the OGLE data base with the DoPhot package. The present version of the catalog comprises 221,801 light curves. In this preliminary work the level of contamination by spurious detections is still about 10%. Parts of the catalog have only crude calibration, insufficient for distance determinations. The next, fully calibrated, edition will include the data collected in year 2000. The data is accessible via FTP. Due to the data volume, we also distribute DAT tapes upon request.

arXiv commentsubmitted to Acta Astronomica, uses aastex (preprint), 17 pages, 1 figure

Cited by in corpus (7)

• The Catalina Surveys Periodic Variable Star Catalog
• Mira Variables in the OGLE Bulge fields
• Deep CFHT Photometric Survey of the Entire M33 Galaxy I: Catalogue of 36000 Variable Point Sources
• An evolutionary study of the pulsating subdwarf B eclipsing binary PG1336-018 (NY Vir)
• Results from the Wide Angle Search for Planets Prototype (WASP0) II: Stellar Variability in the Pegasus Field
• The TAOS Project Stellar Variability II. Detection of 15 Variable Stars
• Multicolour photometry of pulsating stars in the Galactic Bulge fields