Photometric Maps Based on the OGLE-III Shallow Survey in the Large Magellanic Cloud

TL;DR

This paper presents comprehensive photometric maps of the Large Magellanic Cloud derived from the OGLE-III shallow survey, providing calibrated VI photometry and astrometry for 1.7 million stars over 40 square degrees.

Contribution

It offers new, detailed photometric maps of the LMC based on OGLE-III data, including calibration and data quality analysis.

Findings

Photometric maps cover 40 sq. degrees of the LMC.

Data includes mean calibrated VI photometry for 1.7 million stars.

Magnitudes range from 9.1 to 18.5.

Abstract

We present photometric maps based on data from the shallow survey in the Large Magellanic Cloud performed as the supplementary project during the third phase of the Optical Gravitational Lensing Experiment. They cover about 40 square degrees in the LMC and contain mean calibrated VI photometry and astrometry of about 1.7 million stars. The magnitudes of the registered objects range from 9.1 to 18.5. We discuss the quality of data and present color--magnitude diagrams of selected fields. The maps together with the main LMC photometric maps are available to the astronomical community from the OGLE Internet archive.