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arXiv · 2506.16896

COSMIC-L: A Photometric Catalog of Observed Stars in the Large MagellanIc Cloud

A. Franco·A. A. Nucita·F. De Paolis. F. Strafella
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Abstract

The Magellanic Clouds are two nearby dwarf irregular galaxies whose study can help us in understanding galaxy and stellar evolution. In particular, the Large Magellanic Cloud, the larger one, contains approximately 30 billion stars at various evolutionary stages. In this work, we present an SDSS $gri$-bands photometric analysis based on multiple images acquired with DECam, the Dark Energy Camera, installed on the Blanco telescope at Cerro Tololo Inter-American Observatory (Chile). We performed a full image analysis and photometric calibration, resulting in a photometric catalog named COSMIC-L, consisting of 57,997,665 stars, of which 18,676,294 contain estimates for all three $gri$ magnitudes, resulting in a completeness magnitude of $\simeq 21$ and a limiting magnitude of $\simeq 22$ in all three bands.

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A. Franco, A. A. Nucita, F. De Paolis. F. Strafella. 2025-06-20. COSMIC-L: A Photometric Catalog of Observed Stars in the Large MagellanIc Cloud. https://doi.org/10.3847/1538-4365%2Faddeca

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