DES Y6 GOLD (des_y6_gold)
Description
This schema groups the principal DES Year 6 (Y6) Gold data products released for the survey's final cosmological analyses over the 5000 square-degree Southern footprint in the South Galactic Cap. The des_y6_gold table holds the final Y6 Gold catalog of galaxies and stars, derived from six years of grizY imaging in DES Data Release 2. It contains 669 million objects to i = 23.4 (S/N = 10) with improved depth, star/galaxy classification, photometric precision, and uniformity relative to the Y3 Gold release. Survey property maps for Y6 cosmology analyses are described alongside this catalog (Bechtol et al. 2025). The y6_cluster_wazp table lists galaxy clusters detected by the WaZP cluster finder on the full DES-Y6 dataset—over 400,000 systems with richness Ngals > 5, reaching redshifts up to z = 1.3, including a homogenized cosmology subsample of 33,000 rich clusters (Ngals > 25). Cluster properties include photometric and spectroscopic redshifts, richness, radii, footprint coverage, central-galaxy identification, and cross-matches to Sunyaev–Zel'dovich Effect detections from SPT and ACT (Benoist et al. 2025). The y6_cluster_members_wazp table provides candidate member galaxies linked to each WaZP cluster, with membership probability Pmem, redshifts, central-galaxy flags, and grizY magnitudes used to define cluster richness in the parent catalog.
Tables
Galaxy members associated with WaZP DES-Y6 clusters. Each row is a candidate member galaxy linked to a cluster by id_cluster, with membership probability Pmem, photometric and spectroscopic redshifts, central-galaxy flag, and grizY magnitudes. Members are used to define cluster richness Ngals in the parent catalog.
Galaxy cluster catalog detected by the WaZP cluster finder on the full six years of DES-Y6 observations. The finder does not rely on red-sequence identification. The catalog contains over 400,000 clusters with richness Ngals > 5, reaching redshifts up to z = 1.3. A cosmology subsample of 33,000 rich clusters (Ngals > 25) has homogenized observation depth and richness. Cluster properties include photometric and spectroscopic redshifts, richness, radii, footprint coverage, central-galaxy identification, and cross-matches to Sunyaev–Zel'dovich Effect (SZE) detections from SPT and ACT.
Final DES Y6 Gold catalog of galaxies and stars over the 5000 sq-deg Southern footprint, from six years of grizY imaging in Data Release 2. Contains 669 million objects to i = 23.4 (S/N = 10) with improved depth, star/galaxy classification, and photometry over Y3 Gold; also includes survey property maps for Y6 cosmology analyses.