Photometric redshifts and Galaxy Clusters for DES DR2, DESI DR9, and HSC-SSP PDR3 Data
Zou, Hu; Sui, Jipeng ; Xue, Suijian et al.
Photometric redshift (photo-z) is a fundamental parameter for multi-wavelength photometric surveys, while galaxy clusters are important cosmological probers and ideal ob- jects for exploring the dense environmental impact on galaxy evolution. We extend our pre- vious work on estimating photo-z and detecting galaxy clusters to the latest data releases of the Dark Energy Spectroscopic Instrument (DESI) imaging surveys, Dark Energy Survey (DES), and Hyper Suprime-Cam Subaru Strategic Program (HSC-SSP) imaging surveys and make corresponding catalogs publicly available for more extensive scientific applications. The photo-z catalogs include accurate measurements of photo-z and stellar mass for about 320, 293, and 134 million galaxies with r < 23, i < 24, and i < 25 in DESI DR9, DES DR2, and HSC-SSP PDR3 data, respectively. The photo-z accuracy is about 0.017, 0.024, and 0.029 and the general redshift coverage is z < 1, z < 1.2, and z < 1.6, respectively for those three surveys. The uncertainties of the logarithmic stellar mass that is inferred from stellar population synthesis fitting is about 0.2 dex. With the above photo-z catalogs, galaxy clusters are detected using a fast cluster-finding algorithm. A total of 532,810, 86,963, and 36,566 galaxy clusters with the number of members larger than 10 are discovered for DESI, DES, and HSC-SSP, respectively. Their photo-z accuracy is at the level of 0.01. The total mass of our clusters are also estimated by using the calibration relations between the optical richness and the mass measurement from X-ray and radio observations.
The catalogs including
(A) Photo-z and stellar mass
- desdr2_galaxy_cspcat: total catalog of photo-z and stellar mass for DES DR2
- photoz_desdr2: dividing the catalog into smaller files
- filename:
desdr2_galaxy_cspcat_raXXX_YYY.fits
, whereXXX
andYYY
is the lower and upper limits of R.A in degrees
desidr9_galaxy_cspcat.fits
: total catalog of photo-z and stellar mass for DESI DR9- photoz_desidr9: dividing the catalog into smaller files
- filename:
desidr9_galaxy_cspcat_raXXX_YYY.fits
, whereXXX
andYYY
is the lower and upper limits of R.A in degrees
hscpdr3_wide_galaxy_cspcat.fits
: total catalog of photo-z and stellar mass for HSC-SSP PDR3- photoz_hscpdr3: dividing the catalog into smaller files
- filename:
hscpdr3_wide_galaxy_cspcat_raXXX_YYY.fits
, whereXXX
andYYY
is the lower and upper limits of R.A in degrees
(B) Galaxy clusters
galaxy_clusters_desdr2.fits
: catalog of galaxy clusters for DES DR2.galaxy_clusters_desidr9.fits
: catalog of galaxy clusters for DESI DR9.galaxy_clusters_hscpdr3_wide.fits
: catalog of galaxy clusters for HSC-SSP PDR3.
Files
Identifiers
DOI:
10.12149/101090
VO Identifier:
ivo://China-VO/paperdata/101090
Publication Date:
2022-02-14
Citation Guidelines
Zou, Hu; Sui, Jipeng ; Xue, Suijian et al. et al. 2022. Photometric redshifts and Galaxy Clusters for DES DR2, DESI DR9, and HSC-SSP PDR3 Data. Version 1.0. https://doi.org/10.12149/101090
@misc{10.12149/101090,
doi = {10.12149/101090},
url = {https://doi.org/10.12149/101090},
author = {Zou, Hu; Sui, Jipeng ; Xue, Suijian et al.},
title = {Photometric redshifts and Galaxy Clusters for DES DR2, DESI DR9, and HSC-SSP PDR3 Data},
version = {1.0},
publisher = {Nataional Astronomical Data Center of China},
year= {2022}
}
doi = {10.12149/101090},
url = {https://doi.org/10.12149/101090},
author = {Zou, Hu; Sui, Jipeng ; Xue, Suijian et al.},
title = {Photometric redshifts and Galaxy Clusters for DES DR2, DESI DR9, and HSC-SSP PDR3 Data},
version = {1.0},
publisher = {Nataional Astronomical Data Center of China},
year= {2022}
}
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This DOI represents all versions, and will always resolve to the latest one.
2022-02-14