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[2511.04681] Dark Energy Survey Year 3 results: Simulation-based $w$CDM inference from weak lensing and galaxy clustering maps with deep learning: Analysis design
Summary
This article presents a novel simulation-based inference pipeline utilizing deep learning to analyze weak lensing and galaxy clustering maps from the Dark Energy Survey Year 3, enhancing cosmological parameter constraints.
Why It Matters
The research highlights the integration of deep learning in cosmology, showcasing its potential to improve the analysis of large-scale structures in the universe. This advancement is crucial for future observational campaigns aimed at understanding dark energy and the universe's expansion.
Key Takeaways
- Introduces a simulation-based inference pipeline combining weak lensing and galaxy clustering data.
- Utilizes deep graph convolutional neural networks to enhance cosmological parameter estimation.
- Demonstrates significant improvements in parameter constraints compared to traditional methods.
Astrophysics > Cosmology and Nongalactic Astrophysics arXiv:2511.04681 (astro-ph) [Submitted on 6 Nov 2025 (v1), last revised 18 Feb 2026 (this version, v2)] Title:Dark Energy Survey Year 3 results: Simulation-based $w$CDM inference from weak lensing and galaxy clustering maps with deep learning: Analysis design Authors:A. Thomsen, J. Bucko, T. Kacprzak, V. Ajani, J. Fluri, A. Refregier, D. Anbajagane, F. J. Castander, A. Ferté, M. Gatti, N. Jeffrey, A. Alarcon, A. Amon, K. Bechtol, M. R. Becker, G. M. Bernstein, A. Campos, A. Carnero Rosell, C. Chang, R. Chen, A. Choi, M. Crocce, C. Davis, J. DeRose, S. Dodelson, C. Doux, K. Eckert, J. Elvin-Poole, S. Everett, P. Fosalba, D. Gruen, I. Harrison, K. Herner, E. M. Huff, M. Jarvis, N. Kuropatkin, P.-F. Leget, N. MacCrann, J. McCullough, J. Myles, A. Navarro-Alsina, S. Pandey, A. Porredon, J. Prat, M. Raveri, M. Rodriguez-Monroy, R. P. Rollins, A. Roodman, E. S. Rykoff, C. Sánchez, L. F. Secco, E. Sheldon, T. Shin, M. A. Troxel, I. Tutusaus, T. N. Varga, N. Weaverdyck, R. H. Wechsler, B. Yanny, B. Yin, Y. Zhang, J. Zuntz, M. Aguena, S. Allam, F. Andrade-Oliveira, D. Bacon, J. Blazek, D. Brooks, R. Camilleri, J. Carretero, R. Cawthon, L. N. da Costa, M. E. da Silva Pereira, T. M. Davis, J. De Vicente, S. Desai, P. Doel, J. García-Bellido, G. Gutierrez, S. R. Hinton, D. L. Hollowood, K. Honscheid, D. J. James, K. Kuehn, O. Lahav, S. Lee, J. L. Marshall, J. Mena-Fernández, F. Menanteau, R. Miquel, J. Muir, R. L. C. Ogando, A. A. ...