Cosmos2020: A panchromatic view of the universe to z∼10 from two complementary catalogs
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Date
2022Author
Weaver, John R.
Kauffmann, Olivier
Vaccari, Mattia
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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.