10-3847-0067-0049-224-1-1.pdf (1.67 MB)
The redmapper galaxy cluster catalog from DES Science Verification data
journal contribution
posted on 2023-06-09, 01:52 authored by E S Rykoff, E Rozo, D Hollowood, A Bermeo-Hernandez, T Jeltema, Julian Mayers, Kathy RomerKathy Romer, Philip Rooney, A Saro, C Vergara Cervantes, R H Wechsler, H Wilcox, T M C Abbott, F B Abdalla, S Allam, J Annis, A Benoit-Lévy, G M Bernstein, E Bertin, D Brooks, D L Burke, D Capozzi, A Carnero Rosell, M Carrasco Kind, F J Castander, M Childress, C A Collins, C E Cunha, C B D’Andrea, L N da Costa, T M Davis, S Desai, H T Diehl, J P Dietrich, P Doel, A E Evrard, D A Finley, B Flaugher, P Fosalba, J Frieman, K Glazebrook, D A Goldstein, D Gruen, R A Gruendl, G Gutierrez, M Hilton, K Honscheid, B Hoyle, D J James, S T Kay, K Kuehn, N Kuropatkin, O Lahav, G F Lewis, C Lidman, M Lima, M A G Maia, R G Mann, J L Marshall, P Martini, P Melchior, C J Miller, R Miquel, J J Mohr, R C Nichol, B Nord, R Ogando, A A Plazas, K Reil, M Sahlén, E Sanchez Garcia, B Santiago, V Scarpine, M Schubnell, I Sevilla-Noarbe, R C Smith, M Soares-Santos, F Sobreira, J P Stott, E Suchyta, M E C Swanson, G Tarle, D Thomas, D Tucker, S Uddin, P T P Viana, V Vikram, A R Walker, Y ZhangWe describe updates to the redMaPPer algorithm, a photometric red-sequence cluster finder specifically designed for large photometric surveys. The updated algorithm is applied to 150 {{deg}}2 of Science Verification (SV) data from the Dark Energy Survey (DES), and to the Sloan Digital Sky Survey (SDSS) DR8 photometric data set. The DES SV catalog is locally volume limited and contains 786 clusters with richness lambda \gt 20 (roughly equivalent to {M}{{500c}}? {10}14 {h}70-1 {M}o ) and 0.2\lt z\lt 0.9. The DR8 catalog consists of 26,311 clusters with 0.08\lt z\lt 0.6, with a sharply increasing richness threshold as a function of redshift for z? 0.35. The photometric redshift performance of both catalogs is shown to be excellent, with photometric redshift uncertainties controlled at the {sigma }z/(1+z)~ 0.01 level for z? 0.7, rising to ~0.02 at z~ 0.9 in DES SV. We make use of Chandra and XMM X-ray and South Pole Telescope Sunyaev--Zeldovich data to show that the centering performance and mass--richness scatter are consistent with expectations based on prior runs of redMaPPer on SDSS data. We also show how the redMaPPer photo-z and richness estimates are relatively insensitive to imperfect star/galaxy separation and small-scale star masks.
Funding
2012 Doctoral Training Grant - Quota Studentships (STFC); G0939; STFC-SCIENCE AND TECHNOLOGY FACILITIES COUNCIL; ST/K502364/1
Astrophysics and Cosmology - Sussex Consolidated Grant; G1291; STFC-SCIENCE AND TECHNOLOGY FACILITIES COUNCIL; ST/L000652/1
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- Published
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- Published version
Journal
The Astrophysical Journal Supplement SeriesISSN
1538-4365Publisher
American Astronomical SocietyExternal DOI
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1Volume
224Page range
1Department affiliated with
- Physics and Astronomy Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2016-06-23First Open Access (FOA) Date
2016-06-23First Compliant Deposit (FCD) Date
2016-06-23Usage metrics
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