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A Multi-Band Forced-Photometry Catalog in the ELAIS-S1 Field

The ELAIS-S1 field will be an LSST Deep Drilling field, and it also has extensive multiwavelength coverage. To improve the utility of the existing data, we use The Tractor to perform forced-photometry measurements in this field. We compile data in 16 bands from the DeepDrill, VIDEO, DES, ESIS, and VOICE surveys. Using a priori information from the high-resolution fiducial images in VIDEO, we model the images in other bands and generate a forced-photometry catalog. This technique enables consistency throughout different surveys, deblends sources from low-resolution images, extends photometric measurements to a fainter magnitude regime, and improves photometric-redshift estimates. Our catalog contains over 0.8 million sources covering a 3.4 deg2 area in the VIDEO footprint and is available at 10.5281/zenodo.4540178.

preprint2021arXivOpen access
Fan ZouW. N. BrandtMark LacyQingling NiKristina NylandGuang YangFranz E. BauerGiovanni CovoneAniello GradoNicola R. NapolitanoMaurizio PaolilloMario RadovichMarilena SpavoneMattia Vaccari
astro-ph.GA
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Open access14 authors1 topic
Imported metadata coverageMissing code, dataset, citation and institution fields are tracked without dominating the paper.Details
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Fan ZouW. N. BrandtMark LacyQingling NiKristina NylandGuang YangFranz E. BauerGiovanni CovoneAniello GradoNicola R. NapolitanoMaurizio PaolilloMario RadovichMarilena SpavoneMattia Vaccari

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