The Optical Gravitational Lensing Experiment. Difference Image Analysis of LMC and SMC data. The Method

2001/10/31 by K. Zebrun, I. Soszynski, P. R. Wozniak
Physics and Astronomy · #astro-ph

paper · pdf

published as Acta Astronomica., 51 (2001) 303 · 15 pages, 7 figures, revised version (accepted by Acta Astronomica)

arxiv created 2002/01/08 · arxiv updated 2009/12/01

Abstract

We describe the Difference Image Analysis (DIA) algorithms and software used to analyze four years (1997-2000) of OGLE-II photometric monitoring of the Magellanic Clouds, the calibration, the photometric error analysis, and the search for variable stars. A preliminary analysis of photometric errors is based on the field LMC_SC2. A full catalog of about 70,000 variable stars will be presented in a separate publication.

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