Consistency of Dark Energy Survey Year 1 Galaxy Clusters with <i>Planck</i>
The recent Dark Energy Survey Year 1 (DES-Y1) analysis of galaxy cluster abundances and weak lensing produced Ω_{m} and σ_{8} constraints in 5.6σ tension with those derived from Planck. It is suggested in that work that this tension is driven by unmodeled systematics in optical cluster selection. We present a novel simulation-based forward modeling framework that explicitly incorporates cluster selection into its model predictions. Applying this framework to the DES-Y1 data we find consistency with Planck, possibly resolving the tension found in the DES-Y1 analysis. An extension of this approach to the final DES data set will produce robust constraints on ΛCDM parameters and correspondingly strong tests of cosmological models.
Authors
- David H. Weinberg (ORCID: https://orcid.org/0000-0001-7775-7261)
- C. To (ORCID: https://orcid.org/0000-0001-7836-2261)
- Tomomi Sunayama (ORCID: https://orcid.org/0009-0004-6387-5784)
- Andrés N. Salcedo (ORCID: https://orcid.org/0000-0003-1420-527X)
- Andy Lee (ORCID: https://orcid.org/0009-0009-7796-6413)
- Hao‐Yi Wu (ORCID: https://orcid.org/0000-0002-7904-1707)
- Eduardo Rozo
Institutions
- Boise State University (US)
- University of Arizona (US)
- The Ohio State University (US)
Publication Details
- Journal
- Physical Review Letters
- Published
- 2024-11-25
- DOI
- https://doi.org/10.1103/physrevlett.133.221002
- Citations
- 9
- Primary Topic
- Cosmology and Gravitation Theories
- Type
- article
- Field-Weighted Citation Impact
- 2.98
Funders
- National Science Foundation
- David and Lucile Packard Foundation
- U.S. Department of Energy
- National Aeronautics and Space Administration
- Center for Cosmology and Astroparticle Physics, Ohio State University
- Japan Society for the Promotion of Science