Cosmological inference from a joint DESI DR1 full-shape power spectrum and bispectrum analysis

arXiv:2610.01836 · astro-ph.CO · Submitted 2026-10-01 · Read on arXiv

astro-ph.CO

Submitted: 2026-10-01

Updated: 2026-10-01

Code: https://github.com/CosmologicalEmulators/jaxmapse

Terminology

• Bispectrum — 132× in this paper · explained in 3 episodes
• Clustering — 32× in this paper · explained in 2 episodes
• Accuracy — 10× in this paper · explained in 1 episode
• Effective Field Theory — 10× in this paper
• Degeneracy — 8× in this paper · explained in 3 episodes
• Dark Energy Spectroscopic Instrument — 6× in this paper
• Bayesian Inference — 5× in this paper · explained in 5 episodes
• Large-Scale Structure — 5× in this paper
• Non-Gaussianity — 4× in this paper · explained in 2 episodes
• Primordial non-Gaussianity — 4× in this paper · explained in 2 episodes
• Consistency — 3× in this paper · explained in 3 episodes
• Anisotropy — 2× in this paper · explained in 3 episodes
• Figure of Bias — 2× in this paper
• Figure of Merit — 2× in this paper
• Matter Power Spectrum — 2× in this paper · explained in 2 episodes
• N-body simulations — 2× in this paper · explained in 2 episodes
• National Science Foundation — 2× in this paper
• Bayesian Framework — 1× in this paper · explained in 3 episodes
• Big Bang Nucleosynthesis — 1× in this paper
• Cosmic Linear Anisotropy Solving System — 1× in this paper
• DESI DR1 Baryon Acoustic Oscillations — 1× in this paper
• Fidelity — 1× in this paper · explained in 2 episodes
• North Galactic Cap — 1× in this paper
• Piecewise Cubic Spline — 1× in this paper
• Robustness — 1× in this paper · explained in 5 episodes
• Systematic Bias — 1× in this paper · explained in 3 episodes
• Velocity Dispersion — 1× in this paper · explained in 2 episodes

Sources

• DESI 2024 VI: Cosmological Constraints from the Measurements of Baryon Acoustic Oscillations
• DESI 2024 V: Full-Shape Galaxy Clustering from Galaxies and Quasars
• Planck 2018 results. IX. Constraints on primordial non-Gaussianity
• Primordial Non-Gaussianity from Biased Tracers: Likelihood Analysis of Real-Space Power Spectrum and Bispectrum
• The power spectrum and bispectrum of SDSS DR11 BOSS galaxies I: bias and gravity
• Testing one-loop galaxy bias: joint analysis of power spectrum and bispectrum
• The BOSS DR12 Full-Shape Cosmology: $\Lambda$CDM Constraints from the Large-Scale Galaxy Power Spectrum and Bispectrum Monopole
• Overview of the Instrumentation for the Dark Energy Spectroscopic Instrument
• Data Release 1 of the Dark Energy Spectroscopic Instrument
• Cosmological Non-Linearities as an Effective Fluid
• The Effective Field Theory of Cosmological Large Scale Structures
• On the Renormalization of the Effective Field Theory of Large Scale Structures
• Renormalized Halo Bias
• Equivalence Principle and the Baryon Acoustic Peak
• A Lagrangian effective field theory
• Clustering of dark matter tracers: generalizing bias for the coming era of precision LSS
• Large-Scale Galaxy Bias
• Precision analysis of the redshift-space galaxy bispectrum
• Clustering in Massive Neutrino Cosmologies via Eulerian Perturbation Theory
• Fast computation of non-linear power spectrum in cosmologies with massive neutrinos

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