Data · dataset · 2023
Photometric redshifts and galaxy clusters for DES DR2, DESI DR9 and HSC-SSP PDR3
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Photometric redshift (photo-z) is a fundamental parameter for multi-wavelength photometric surveys, while galaxy clusters are important cosmological probers and ideal objects for exploring the dense environmental impact on galaxy evolution.
Description
We extend our previous 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.
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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 mass1. 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, where XXX and YYY is the lower and upper limits of R.A in degrees2. 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, where XXX and YYY is the lower and upper limits of R.A in degrees3. 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, where XXX and YYY is the lower and upper limits of R.A in degrees(B) Galaxy clusters1. galaxy_clusters_desdr2.fits: catalog of galaxy clusters for DES DR22. galaxy_clusters_desidr9.fits: catalog of galaxy clusters for DESI DR93. galaxy_clusters_hscpdr3_wide.fits: catalog of galaxy clusters for HSC-SSP PDR3
Links
Where it is published
- DOI doi.org/10.11922/sciencedb.o00069.00003 ↗
DOI / persistent id · from scidb cn
Catalogue records · 1
- OAI-PMH record scidb.cn/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=10.11922%2… ↗
metadata API · from scidb cn
Topics
- From keywords
- Earth & Environmental Science · Engineering · Humanities · Life Sciences · Social Science
- Inferred from text
- Imaging 75%
Provenance · 1 source records, 11 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| ScienceDB | 10.11922/sciencedb.o00069.00003 | 11 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:engineering | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:humanities | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:life-sciences | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:social-science | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[modality].local:modality:imaging | enrichment · scidb cn | keyword-concept-rules@1.0.0 | title+description (75%) |
| description | source · scidb cn | connector:scidb_cn@1.0.0 | /metadata/dc/description |
| license | source · scidb cn | connector:scidb_cn@1.0.0 | /metadata/dc/rights |
| publication_date | source · scidb cn | connector:scidb_cn@1.0.0 | |
| title | source · scidb cn | connector:scidb_cn@1.0.0 | /metadata/dc/title |