Dark energy survey: Modeling strategy for multiprobe cluster cosmology and validation for the full six-year dataset

We introduce an updated To model for joint analyses of cluster abundances and large-scale two-point correlations of weak lensing and galaxy and cluster clustering (termed $\mathrm{CL}+3\ifmmode\times\else\texttimes\fi{}2\text{ }\text{ }\mathrm{pt}$ analysis) and validate that this model meets the systematic accuracy requirements of analyses with the statistical precision of the final Dark Energy Survey (DES) Year 6 (Y6) dataset. The validation program consists of two distinct approaches, (i) identification of modeling and parametrization choices and impact studies using simulated analyses with each possible model misspecification and (ii) end-to-end validation using mock catalogs from customized Cardinal simulations that incorporate realistic galaxy populations and DES-Y6-specific galaxy and cluster selection and photometric redshift modeling, which are the key observational systematics. In combination, these validation tests indicate that the model presented here meets the accuracy requirements of DES-Y6 for $\mathrm{CL}+3\ifmmode\times\else\texttimes\fi{}2\text{ }\text{ }\mathrm{pt}$ based on a large list of tests for known systematics. In addition, we also validate that the model is sufficient for several other data combinations: the $\mathrm{CL}+\mathrm{GC}$ subset of this data vector (excluding galaxy--galaxy lensing and cosmic shear two-point statistics) and the $\mathrm{CL}+3\ifmmode\times\else\texttimes\fi{}2\text{ }\text{ }\mathrm{pt}+\mathrm{BAO}+\mathrm{SN}$ (combination of $\mathrm{CL}+3\ifmmode\times\else\texttimes\fi{}2\text{ }\text{ }\mathrm{pt}$ with the previously published Y6 DES baryonic acoustic oscillation and Y5 supernovae data).

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Publication Details

Journal
Physical review. D/Physical review. D.
Published
2025-08-20
DOI
https://doi.org/10.1103/ynqj-6hsb
Citations
3
Primary Topic
Cosmology and Gravitation Theories
Type
article
Field-Weighted Citation Impact
3.46
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article

Dark energy survey: Modeling strategy for multiprobe cluster cosmology and validation for the full six-year dataset

J. Myles, M. Gatti, L. N. da Costa, M. R. Becker et al.
3 citations
Physical review. D/Physical review. D.
Cosmology and Gravitation Theories
3.46
article

Dark energy survey: Modeling strategy for multiprobe cluster cosmology and validation for the full six-year dataset

J. Myles, M. Gatti, L. N. da Costa, M. R. Becker, D. Gruen, J. Carretero, S. Grandis, J. Muir, A. A. Plazas, Gregory Tarlé, A. Porredon, G. Giannini, A. Palmese, C. Chang, E. Krause, N. Weaverdyck, S. R. Hinton, T. M. C. Abbott, T. Shin, S. Lee, E. Sanchez, S. Everett, D. Sanchez Cid, J. García-Bellido, David H. Weinberg, G. Gutierrez, J. Weller, M. Costanzi, J. Mena-Fernández, A. Carnero Rosell, J. De Vicente, ENRIQUE GAZTAÑAGA, S. Bocquet, C. To, S. Samuroff, J. García-Bellido, J. J. Mohr, A. Ferté, Dhayaa Anbajagane, J. Blazek, T. M. Davis, C. Doux, A. Choi, A. R. Walker, M. E. S. Pereira, S. Desai, F. Andrade-Oliveira, Risa H. Wechsler, J. Elvin-Poole, J. L. Marshall, Hao‐Yi Wu, D. Brooks, M. Soares-Santos, D. Bacon, K. Kuehn, Eduardo Rozo, J. Frieman, P. Doel, A. K. Romer, I Sevilla-Noarbe, M. Aguena, V. Vikram, K. Honscheid, T. Jeltema, R. Miquel, S. Àvila, M Smith
article en
3 citations

Abstract

We introduce an updated To model for joint analyses of cluster abundances and large-scale two-point correlations of weak lensing and galaxy and cluster clustering (termed $\mathrm{CL}+3\ifmmode\times\else\texttimes\fi{}2\text{ }\text{ }\mathrm{pt}$ analysis) and validate that this model meets the systematic accuracy requirements of analyses with the statistical precision of the final Dark Energy Survey (DES) Year 6 (Y6) dataset. The validation program consists of two distinct approaches, (i) identification of modeling and parametrization choices and impact studies using simulated analyses with each possible model misspecification and (ii) end-to-end validation using mock catalogs from customized Cardinal simulations that incorporate realistic galaxy populations and DES-Y6-specific galaxy and cluster selection and photometric redshift modeling, which are the key observational systematics. In combination, these validation tests indicate that the model presented here meets the accuracy requirements of DES-Y6 for $\mathrm{CL}+3\ifmmode\times\else\texttimes\fi{}2\text{ }\text{ }\mathrm{pt}$ based on a large list of tests for known systematics. In addition, we also validate that the model is sufficient for several other data combinations: the $\mathrm{CL}+\mathrm{GC}$ subset of this data vector (excluding galaxy--galaxy lensing and cosmic shear two-point statistics) and the $\mathrm{CL}+3\ifmmode\times\else\texttimes\fi{}2\text{ }\text{ }\mathrm{pt}+\mathrm{BAO}+\mathrm{SN}$ (combination of $\mathrm{CL}+3\ifmmode\times\else\texttimes\fi{}2\text{ }\text{ }\mathrm{pt}$ with the previously published Y6 DES baryonic acoustic oscillation and Y5 supernovae data).

Physical review. D/Physical review. D.Vol. 112(6)
Institució Catalana de Recerca i Estudis Avançats (ES), California Institute of Technology (US), Argonne National Laboratory (US), Oak Ridge National Laboratory (US), Goddard Space Flight Center (US), Fermi National Accelerator Laboratory (US), Institute of Space Sciences (ES), University of Arizona (US), University of Trieste (IT), Lawrence Berkeley National Laboratory (US), University of Waterloo (CA), Universidad de La Laguna (ES), Universität Hamburg (DE), University of Sussex (GB), The University of Queensland (AU), Southern Methodist University (US), Perimeter Institute (CA), Princeton University (US), University of Zurich (CH), University of Michigan (US), Lowell Observatory (US), Trieste Astronomical Observatory (IT), Mitchell Institute (US), SLAC National Accelerator Laboratory (US), University of California System (US), University of Chicago (US), Shanghai Institute for Science of Science (CN), Max Planck Institute for Extraterrestrial Physics (DE), Institut d'Estudis Espacials de Catalunya (ES), Kavli Institute for Particle Astrophysics and Cosmology (US), Institute of Particle Physics (CA), Instituto de Astrofísica de Canarias (ES), Barcelona Institute of Science and Technology (ES), Laboratoire de Physique Subatomique et de Cosmologie (FR), NSF NOIRLab (US), Laboratório Interinstitucional de e-Astronomia (BR), Institute for Fundamental Physics of the Universe (IT), Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (ES), Institute of Science and Technology, Institut des langues et cultures d'Europe, Amérique, Afrique, Asie et Australie (FR), University College London (GB), The Ohio State University (US), Stony Brook University (US), University of Portsmouth (GB), University of Cincinnati (US), Universidad Autónoma de Madrid (ES), Indian Institute of Technology Hyderabad (IN), Lancaster University (GB), Carnegie Mellon University (US), Ludwig-Maximilians-Universität München (DE), Universidad del Noreste (MX), Université Grenoble Alpes (FR), Ruhr University Bochum (DE), Texas A&M University (US), Stanford University (US), Macquarie University (AU)
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Cosmology and Gravitation Theories
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