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The Optical Gravitational Lensing Experiment. OGLE-III Photometric Maps of the Galactic Bulge Fields

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arxiv 1107.4008 v1 pith:FEVUZ6WY submitted 2011-07-20 astro-ph.SR

The Optical Gravitational Lensing Experiment. OGLE-III Photometric Maps of the Galactic Bulge Fields

M. K. Szyma\'nski (1) , A. Udalski (1) , I. Soszy\'nski (1) , M. Kubiak (1) , G. Pietrzy\'nski (1 , 2) , R. Poleski (1) , {\L}. Wyrzykowski (3
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1) K. Ulaczyk (1) ((1) Warsaw University Observatory (2) Universidad de Concepci\'on Departamento de Astronomia (3) Institute of Astronomy University of Cambridge)
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keywords datafieldsmapsogle-iiibulgegalacticobservedphotometric
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We present OGLE-III Photometric Maps of the Galactic bulge fields observed during the third phase of the OGLE project. This paper describes the last, concluding set of maps based on OGLE-III data. The maps contain precise, calibrated VI photometry of about 340 million stars from 267 fields in the Galactic bulge observed during entire OGLE-III phase (2002-2009), covering about 92 square degrees in the sky. Precise astrometry of these objects is also provided. We briefly discuss the photometry procedures and the quality of the data. We also present sample data and color-magnitude diagrams of the observed fields. All photometric data are available to the astronomical community from the OGLE Internet archive.

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