Diagnostic Consistency Tests of the Concordance Cosmology

arXiv:2604.05836 · astro-ph.CO · Submitted 2026-04-07 · Read on arXiv

astro-ph.CO

Submitted: 2026-04-07

Updated: 2026-08-06

Comments: 5 pages, 1 captioned figure. v2: 6 pages, text slightly elaborated and figures updated. No changes to results. Matches version accepted for publication in PRL. Joint submission with arXiv:2604.05822

Journal ref: Phys. Rev. Lett. 137, 091001 (2026)

DOI: 10.1103/x2m7-dtgd

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

Terminology

• Consistency — 17× in this paper · explained in 3 episodes
• Symbolic Regression — 8× in this paper · explained in 5 episodes
• Calibration — 3× in this paper · explained in 7 episodes
• Robustness — 2× in this paper · explained in 5 episodes
• Accuracy — 1× in this paper · explained in 1 episode
• Clustering — 1× in this paper · explained in 2 episodes
• Higher-order derivatives — 1× in this paper · explained in 2 episodes
• Hubble Tension — 1× in this paper · explained in 9 episodes
• Quantifying Uncertainty — 1× in this paper · explained in 5 episodes

Sources

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• A New Paradigm for Testing Gravity: Theory-Independent Constraints Using Data From All Astrophysical and Cosmological Scales
• Model independent tests of the standard cosmological model
• Model-independent test of the FLRW metric, the flatness of the Universe, and non-local measurement of $H_0r_\mathrm{d}$
• Backreaction and FRW consistency conditions
• A null test of the Cosmological Principle with BAO measurements
• A general test of the Copernican Principle
• Testing backreaction effects with observations
• Unveiling the Universe with Emerging Cosmological Probes
• Improved null tests of $\Lambda$CDM and FLRW in light of DESI DR2
• Multipole decomposition of the general luminosity distance 'Hubble law' -- a new framework for observational cosmology
• Inhomogeneity and the foundations of concordance cosmology
• Differential age observations and their constraining power in cosmology
• Quantifying the accuracy of the Alcock-Paczynski scaling of baryon acoustic oscillation measurements

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