Simulation-based tension quantification of the cosmic dipole

arXiv:2607.25703 · astro-ph.CO · Submitted 2026-07-28 · Read on arXiv

Mali Land-Strykowski, Harry T. J. Bevins, Oliver T. Oayda, Geraint F. Lewis

astro-ph.CO

Submitted: 2026-07-28

Updated: 2026-08-19

Comments: 14 pages, 9 figures, accepted for publication in MNRAS

Code: https://github.com/handley-lab/anesthetichttps:

Project page: https://johannesbuchner.github.io/UltraNest

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Core — 5× in this paper · explained in 2 episodes
• Simulation-Based Inference (SBI) — 5× in this paper · explained in 3 episodes
• Simulation-based Inference — 5× in this paper · explained in 2 episodes
• Loss Function — 3× in this paper · explained in 2 episodes
• Activation Function — 2× in this paper · explained in 1 episode
• Adam — 2× in this paper · explained in 2 episodes
• Bayesian Inference — 2× in this paper · explained in 5 episodes
• Probability Density Function — 2× in this paper
• Rapid ASKAP Continuum Survey — 2× in this paper
• Anisotropy — 1× in this paper · explained in 3 episodes
• Bayesian Framework — 1× in this paper · explained in 3 episodes
• Consistency — 1× in this paper · explained in 3 episodes
• Feature Extraction — 1× in this paper · explained in 2 episodes
• Latent Space — 1× in this paper · explained in 7 episodes
• NRAO VLA Sky Survey — 1× in this paper
• Neural Likelihood Estimator — 1× in this paper
• Schematic of the Neural Ratio Estimator — 1× in this paper

Sources

• The CatWISE2020 Quasar dipole: A Reassessment of the Cosmic Dipole Anomaly
• The kinematic cosmic dipole beyond Ellis and Baldwin
• Approximating Likelihood Ratios with Calibrated Discriminative Classifiers
• The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics
• Euclid. I. Overview of the Euclid mission
• Automatic Posterior Transformation for Likelihood-Free Inference
• Likelihood-free MCMC with Amortized Approximate Ratio Estimators
• Conditional Neural Bayes Ratio Estimation for Experimental Design Optimisation
• The Cosmological Dipole in Tilted Anisotropic Universes
• A General Formulation of the Kinematic Dipole as a Functional of Selection and Source Properties: Beyond the Ellis--Baldwin Approximation

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