Constraining Inflation with Little Red Dots

arXiv:2609.26553 · astro-ph.CO · Submitted 2026-09-22 · Read on arXiv

astro-ph.CO

Submitted: 2026-09-22

Updated: 2026-09-22

Comments: 14 pages, 5 figures, 6 tables

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

Terminology

• Bispectrum — 37× in this paper · explained in 3 episodes
• Abundance — 19× in this paper · explained in 1 episode
• Clustering — 6× in this paper · explained in 2 episodes
• Little Red Dots — 5× in this paper · explained in 2 episodes
• Robustness — 5× in this paper · explained in 5 episodes
• Non-Gaussianity — 4× in this paper · explained in 2 episodes
• Degeneracy — 3× in this paper · explained in 3 episodes
• Little Red Dots (LRDs) — 3× in this paper · explained in 3 episodes
• Primordial non-Gaussianity — 3× in this paper · explained in 2 episodes
• Simons Observatory — 2× in this paper
• AGN — 1× in this paper · explained in 1 episode
• Decoupling — 1× in this paper · explained in 2 episodes
• Matter Power Spectrum — 1× in this paper · explained in 2 episodes
• Velocity Dispersion — 1× in this paper · explained in 2 episodes

Sources

• Non-Gaussianity as a Probe of the Physics of the Primordial Universe and the Astrophysics of the Low Redshift Universe
• Inflation: Theory and Observations
• Signals of a Quantum Universe
• The next non-Gaussianity frontier: what can a measurement with $\sigma(f_{\rm NL}) \lesssim 1$ tell us about multifield inflation?
• Primordial Non-Gaussianity
• Planck 2018 results. IX. Constraints on primordial non-Gaussianity
• The Simons Observatory: Science goals and forecasts
• Probing Cosmic Inflation with the LiteBIRD Cosmic Microwave Background Polarization Survey
• The effect of primordial non-Gaussianity on halo bias
• Primordial non-Gaussianity in the large scale structure of the Universe
• Large-Scale Galaxy Bias
• Redshift-weighted constraints on primordial non-Gaussianity from the clustering of the eBOSS DR14 quasars in Fourier space
• The clustering of galaxies in the completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: Primordial non-Gaussianity in Fourier Space
• Constraints on Single-Field Inflation from the BOSS Galaxy Survey
• Constraints on Multi-Field Inflation from the BOSS Galaxy Survey
• Limits on primordial non-Gaussianities from BOSS galaxy-clustering data
• Optimal constraints on Primordial non-Gaussianity with the eBOSS DR16 quasars in Fourier space
• Constraining primordial non-Gaussianity with DESI 2024 LRG and QSO samples
• The Power of Locality: Primordial Non-Gaussianity at the Map Level
• Cosmology with the SPHEREX All-Sky Spectral Survey

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