CODEX weak lensing mass catalogue and implications on the mass–richness relation

Journal Article · Wed Dec 23 00:00:00 EST 2020 · Monthly Notices of the Royal Astronomical Society

DOI:https://doi.org/10.1093/mnras/staa3936· OSTI ID:1765947

Kiiveri, K. ^[1]; Gruen, D. ^[2]; Finoguenov, A. ^[3]; Erben, T. ^[4]; van Waerbeke, L. ^[5]; Rykoff, E. ^[2]; Miller, L. ^[6]; Hagstotz, S. ^[7]; Dupke, R. ^[8]; Patrick Henry, J. ^[9]; Kneib, J-P ^[10]; Gozaliasl, G. ^[11]; Kirkpatrick, C. C. ^[11]; Cibirka, N. ^[12]; Clerc, N. ^[13]; Costanzi, M. ^[14]; Cypriano, E. S. ^[15]; Rozo, E. ^[16]; Shan, H. ^[17]; Spinelli, P. ^[18] ; Valiviita, J. ^[19]; Weller, J. ^[20]

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1. Department of Physics, University of Helsinki, PO Box 64, FI-00014 Helsinki, Finland; Helsinki Institute of Physics, Gustaf Hällströmin katu 2, University of Helsinki, PO Box 64, FI-00014, Helsinki, Finland; SLAC
2. Kavli Institute for Particle Astrophysics & Cosmology, PO Box 2450, Stanford University, Stanford, CA 94305, USA; SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
3. Department of Physics, University of Helsinki, PO Box 64, FI-00014 Helsinki, Finland
4. Argelander-Institut für Astronomie, Auf dem Hügel 71, D-53121 Bonn, Germany
5. Department of Physics and Astronomy, University of British Columbia, 6224 Agricultural road, Vancouver BC V6T 1Z1, Canada
6. Department of Physics, Oxford University, Keble Road, Oxford OX1 3RH, UK
7. Oskar Klein Centre, Department of Physics, Stockholm University, AlbaNova University Centre, SE 106 91 Stockholm, Sweden
8. Observatório Nacional, Rua Gal. José Cristino, Rio de Janeiro 20921-400, Brasil; Department of Astronomy, University of Michigan, 311 West Hall 1085 South University Ave. Ann Arbor, MI 48109, USA; Department of Physics and Astronomy, University of Alabama, Box 870324, Tuscaloosa, AL 35487, USA; Eureka Scientific Inc., 2452 Delmer St Suite 100, Oakland, CA 94602, USA
9. Institute for Astronomy, 2680 Woodlawn Drive, Honolulu, HI 96822, USA
10. Laboratoire d’Astrophysique, Ecole Polytechnique Fédérale de Lausanne (EPFL), Observatoire de Sauverny, CH-1290 Versoix, Switzerland; Aix Marseille Université, CNRS, LAM (Laboratoire d’Astrophysique de Marseille) UMR 7326, F-13388 Marseille, France
11. Department of Physics, University of Helsinki, PO Box 64, FI-00014 Helsinki, Finland; Helsinki Institute of Physics, Gustaf Hällströmin katu 2, University of Helsinki, PO Box 64, FI-00014, Helsinki, Finland
12. Instituto de Astronomia, Geofísica e Ciências Atmosféricas, Universidade de São Paulo, R. do Matão 1226, 05508-090 São Paulo, Brasil; Universitäts-Sternwarte, Fakultät für Physik, Ludwig-Maximilians-Universität München, Scheinerstraße 1, D-81679 München, Germany
13. CNRS, IRAP, 9 Av. colonel Roche, Postal Code 44346, F-31028; Université de Toulouse, UPS-OMP, Toulouse, France
14. INAF-Osservatorio Astronomico di Trieste, Via G. B Tiepolo 11, I-34143; IFPU-Institute for Fundamental Physics of the Universe, Via Beirut 2, I-34014 Trieste, Italy
15. Instituto de Astronomia, Geofísica e Ciências Atmosféricas, Universidade de São Paulo, R. do Matão 1226, 05508-090 São Paulo, Brasil
16. Department of Physics, University of Arizona, 1118 E. Fourth St, Tucson, AZ 85721, USA
17. Shanghai Astronomical Observatory (SHAO), Nandan Road 80, Shanghai 200030, China
18. Museu de Astronomia e Ciências Afins (MAST), Rua General Bruce 586, 20921-030 Rio de Janeiro, Brasil
19. Helsinki Institute of Physics, Gustaf Hällströmin katu 2, University of Helsinki, PO Box 64, FI-00014, Helsinki, Finland; Department of Physics, PO Box 35 (YFL), FI-40014 University of Jyväskylä, Finland
20. Universitäts-Sternwarte, Fakultät für Physik, Ludwig-Maximilians-Universität München, Scheinerstraße 1, D-81679 München, Germany; Excellence Cluster Origins, Boltzmannstraße 2, D-85748 Garching, Germany

The COnstrain Dark Energy with X-ray clusters (CODEX) sample contains the largest flux limited sample of X-ray clusters at 0.35 < z < 0.65. It was selected from ROSAT data in the 10 000 square degrees of overlap with BOSS, mapping a total number of 2770 high-z galaxy clusters. We present here the full results of the CFHT CODEX programme on cluster mass measurement, including a reanalysis of CFHTLS Wide data, with 25 individual lensing-constrained cluster masses. We employ lensfit shape measurement and perform a conservative colour–space selection and weighting of background galaxies. Using the combination of shape noise and an analytic covariance for intrinsic variations of cluster profiles at fixed mass due to large-scale structure, miscentring, and variations in concentration and ellipticity, we determine the likelihood of the observed shear signal as a function of true mass for each cluster. We combine 25 individual cluster mass likelihoods in a Bayesian hierarchical scheme with the inclusion of optical and X-ray selection functions to derive constraints on the slope α, normalization β, and scatter σln λ|μ of our richness–mass scaling relation model in log-space: $${\langle {\rm In}\,\, \lambda\!\!\mid\!\!\mu\rangle = \alpha\mu + \beta,} $$ with μ = ln (M_200c/M_piv), and M_piv = 10^14.81M_⊙. We find a slope $$\alpha = 0.49^{+0.20}_{-0.15}$$, normalization $$\exp (\beta) = 84.0^{+9.2}_{-14.8}$$, and $$\sigma _{\ln \lambda | \mu } = 0.17^{+0.13}_{-0.09}$$ using CFHT richness estimates. In comparison to other weak lensing richness–mass relations, we find the normalization of the richness statistically agreeing with the normalization of other scaling relations from a broad redshift range (0.0 < z < 0.65) and with different cluster selection (X-ray, Sunyaev–Zeldovich, and optical).

• Research Organization: SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
• Sponsoring Organization: Brazilian National Council for Scientific and Technological Development (CNPq); Coordination for the Improvement of Higher Education Personnel (CAPES); Finnish Academy; Science and Technology Commission of Shanghai Municipality; Science and Technology Facilities Council (STFC); Science and Technology Facilities Council (STFC) (United Kingdom); Shanghai Committee of Science and Technology; S˜ao Paolo Research Foundation (FAPESP); USDOE Laboratory Directed Research and Development (LDRD) Program; USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Office of Science (SC), High Energy Physics (HEP)
• Grant/Contract Number: AC02-76SF00515
• OSTI ID: 1765947
• Alternate ID(s): OSTI ID: 1766077
• Report Number(s): SLAC-PUB--17589
• Journal Information: Monthly Notices of the Royal Astronomical Society, Journal Name: Monthly Notices of the Royal Astronomical Society Journal Issue: 1 Vol. 502; ISSN 0035-8711
• Publisher: Royal Astronomical Society
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
79 ASTRONOMY AND ASTROPHYSICS
X-ray observations
clusters of galaxies
cosmology: observations
dark energy
galaxy: clusters
gravitational lensing
gravitational lensing: weak