Cosmos2020: A panchromatic view of the universe to z∼10 from two complementary catalogs
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Date
2022
Journal Title
Journal ISSN
Volume Title
Publisher
IOP Publishing
Abstract
The Cosmic Evolution Survey (COSMOS) has become a cornerstone of extragalactic astronomy. Since the last public
catalog in 2015, a wealth of new imaging and spectroscopic data have been collected in the COSMOS field. This paper
describes the collection, processing, and analysis of these new imaging data to produce a new reference photometric redshift catalog. Source detection and multiwavelength photometry are performed for 1.7 million sources across the
2 deg2 of the COSMOS field, ∼966,000 of which are measured with all available broadband data using both traditional
aperture photometric methods and a new profile-fitting photometric extraction tool, THE FARMER, which we have
developed. A detailed comparison of the two resulting photometric catalogs is presented. Photometric redshifts are
computed for all sources in each catalog utilizing two independent photometric redshift codes.
Description
Keywords
Catalogs, Galaxy evolution, High-redshift galaxies, Observational astronomy, Astronomical methods
Citation
Weaver, J. R. et al. (2022). Cosmos2020: A panchromatic view of the universe to z∼10 from two complementary catalogs. Astrophysical Journal Supplement, 258 (1).https://doi.org/10.3847/1538-4365/ac3078