Beyond CDM with the SKA Observatory -- I: Probing Gravity on Cosmological Scales

arXiv:2607.11917 · gr-qc, astro-ph.CO · Submitted 2026-07-06 · Read on arXiv

S. Camera, C. Addis, S. L. Guedezounme, F. Montano, T. Montandon, M. Novara, S. J. Rossiter, J. Asorey, S. Castello, C. Clarkson, J. Fonseca, N. Frusciante, C. Gomes, N. Grimm, A. Nasirudin, L. G. T. Oliveira, F. Pace, Z. Sakr, M. Berti, C. Bonvin, P. Bull, E. Di Dio, C. Cress, C. Heneka, H. -R. Kloeckner, R. Maartens, C. J. A. P. Martins, D. Parkinson, C. S. Saraf

gr-qc, astro-ph.CO

Submitted: 2026-07-06

Comments: Published in Advancing Astrophysics with the SKA II (AASKAII), 2026 (arXiv:2606.20366). Report-no: AASKAII/Camera01. Advancing Astrophysics with the SKA II (AASKAII) outlines the transformative scientific advances that will be enabled by the SKA telescopes

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

Terminology

• Bispectrum — 23× in this paper · explained in 3 episodes
• Clustering — 15× in this paper · explained in 2 episodes
• Gravitational Lensing — 6× in this paper · explained in 2 episodes
• Weak Lensing — 5× in this paper · explained in 2 episodes
• Degeneracy — 4× in this paper · explained in 3 episodes
• Consistency — 2× in this paper · explained in 3 episodes
• Higher-order statistics — 2× in this paper · explained in 2 episodes
• Homogeneity — 2× in this paper · explained in 2 episodes
• Robustness — 2× in this paper · explained in 5 episodes
• Trace — 2× in this paper · explained in 2 episodes
• Accuracy — 1× in this paper · explained in 1 episode
• Cooperation — 1× in this paper · explained in 2 episodes
• Effective Field Theory (EFT) — 1× in this paper · explained in 2 episodes
• European Research Council — 1× in this paper
• Fidelity — 1× in this paper · explained in 2 episodes
• Fine-Tuning — 1× in this paper · explained in 5 episodes
• Non-Gaussianity — 1× in this paper · explained in 2 episodes
• Phase Transitions — 1× in this paper · explained in 2 episodes
• Reheating — 1× in this paper · explained in 2 episodes
• Unified Framework — 1× in this paper · explained in 5 episodes
• alpha — 1× in this paper · explained in 1 episode

Sources

• Unbiased analysis of primordial non-Gaussianity: the multipoles of the full relativistic power spectrum
• Dark Energy Survey Year 3 Results: Cosmological Constraints from Cluster Abundances, Weak Lensing, and Galaxy Clustering
• Data Release 1 of the Dark Energy Spectroscopic Instrument
• Detecting Local and Integrated Relativistic Effects by Multi-Tracing a Single Galaxy Population in Harmonic Space
• Decoupling Local Primordial non-Gaussianity from Relativistic Effects in the Galaxy Bispectrum
• Halving and Doubling: Boosting the Detection of Relativistic Effects in the Galaxy Bispectrum with Optimal Subsample Selection
• A more inclusive effective dark fluid equation of state parameter: constraints from SKA and Euclid like surveys
• EMU: Cross-correlating EMU Pilot Survey 1 with Dark Energy Survey to validate the radio galaxy bias and redshift distribution
• The LSST Dark Energy Science Collaboration (DESC) Science Requirements Document
• Clustering in Redshift Space: Linear Theory

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