DES Y6 Gold WaZP Cluster Catalogs¶
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Overview¶
Benoist et al. (2025) present a galaxy cluster catalog from the WaZP cluster finder, independent of red-sequence detection, using six years of Dark Energy Survey data (DES-Y6). The full catalog includes over 400,000 clusters with Ngals > 5, reaching redshifts up to z = 1.3. A homogenized version for cosmology contains 33,000 rich clusters (Ngals > 25).
Comparison with the previous DES-Y1 WaZP catalog shows nearly all clusters within the overlapping footprint and depth are recovered. Deeper DES-Y6 observations and a more complete spectroscopic redshift sample improve redshift estimates, with an average scatter of 1.4% and a mean offset of 0.2%.
Optical clusters are cross-matched with SZE clusters from SPT and ACT. Nearly all SZE clusters in overlapping regions have a WaZP counterpart, and 90% of optical clusters with richness > 150 match SZE detections in deep survey areas. About 15–20% of SZE-matched systems have multiple WaZP counterparts within R500c at the same redshift, indicating possible interacting or unrelaxed systems. WaZP and SZE cluster centers are consistent when accounting for beam sizes.
Data Access¶
- Cluster catalog: y6a2_dnf_wazp_v5.0.12.6801_clusters.fits
- Cluster members: y6a2_dnf_wazp_v5.0.12.6801_members.fits
- Footprint map: y6a2_dnf_wazp_v5.0.12.6801_footprint.fits
Download with wget¶
$ wget -e robots=off -r -np -nH --cut-dirs=1 -c -R "index.html*" -l 0 https://datasets.linea.org.br/wazp/y6a2_dnf_wazp_v5.0.12.6801_clusters.fits
$ wget -e robots=off -r -np -nH --cut-dirs=1 -c -R "index.html*" -l 0 https://datasets.linea.org.br/wazp/y6a2_dnf_wazp_v5.0.12.6801_members.fits
$ wget -e robots=off -r -np -nH --cut-dirs=1 -c -R "index.html*" -l 0 https://datasets.linea.org.br/wazp/y6a2_dnf_wazp_v5.0.12.6801_footprint.fits