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

K. Zebrun·I. Soszynski·P. R. Wozniak
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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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K. Zebrun, I. Soszynski, P. R. Wozniak. 2002-01-08. The Optical Gravitational Lensing Experiment. Difference Image Analysis of LMC and SMC data. The Method. https://arxiv.org/abs/astro-ph/0110612

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