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arXiv · 2103.13417

Photometric Redshifts in the W-CDF-S and ELAIS-S1 Fields Based on Forced Photometry from 0.36 -- 4.5 Microns

Fan Zou·Guang Yang·W. N. Brandt·Qingling Ni·Franz E. Bauer·Giovanni Covone·Mark Lacy·Nicola R. Napolitano·Kristina Nyland·Maurizio Paolillo·Mario Radovich·Marilena Spavone·Mattia Vaccari
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Abstract

The W-CDF-S and ELAIS-S1 fields will be two of the LSST Deep Drilling fields, but the availability of spectroscopic redshifts within these two fields is still limited on deg^2 scales. To prepare for future science, we use EAZY to estimate photometric redshifts (photo-zs) in these two fields based on forced-photometry catalogs. Our photo-z catalog consists of ~0.8 million sources covering 4.9 deg^2 in W-CDF-S and ~0.8 million sources covering 3.4 deg^2 in ELAIS-S1, among which there are ~0.6 (W-CDF-S) and ~0.4 (ELAIS-S1) million sources having signal-to-noise-ratio (SNR) > 5 detections in more than 5 bands. By comparing photo-zs and available spectroscopic redshifts, we demonstrate the general reliability of our photo-z measurements. Our photo-z catalog is publicly available at \doi{10.5281/zenodo.4603178}.

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Fan Zou, Guang Yang, W. N. Brandt, Qingling Ni, Franz E. Bauer, Giovanni Covone, Mark Lacy, Nicola R. Napolitano, Kristina Nyland, Maurizio Paolillo, Mario Radovich, Marilena Spavone, Mattia Vaccari. 2021-03-24. Photometric Redshifts in the W-CDF-S and ELAIS-S1 Fields Based on Forced Photometry from 0.36 -- 4.5 Microns. https://doi.org/10.3847/2515-5172%2Fabf050

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