Tide-and-Seek: Anisotropic scale-dependent bias in the Lyman-alpha forest and designer samples

arXiv:2609.35713 · astro-ph.CO · Submitted 2026-09-28 · Read on arXiv

astro-ph.CO

Submitted: 2026-09-28

Updated: 2026-09-28

Code: https://github.com/oliverphilcox/PolyBin3D

Terminology

• Non-Gaussianity — 16× in this paper · explained in 2 episodes
• Bispectrum — 15× in this paper · explained in 3 episodes
• Clustering — 14× in this paper · explained in 2 episodes
• Primordial non-Gaussianity — 13× in this paper · explained in 2 episodes
• Velocity Dispersion — 12× in this paper · explained in 2 episodes
• alpha — 9× in this paper · explained in 1 episode
• Alignment — 6× in this paper · explained in 1 episode
• Abundance — 2× in this paper · explained in 1 episode
• N-body simulations — 2× in this paper · explained in 2 episodes
• Selection Bias — 2× in this paper · explained in 4 episodes
• Trace — 2× in this paper · explained in 2 episodes
• Anisotropy — 1× in this paper · explained in 3 episodes
• Aperture — 1× in this paper · explained in 1 episode
• Aperture Correction — 1× in this paper · explained in 1 episode
• Coherence Length — 1× in this paper · explained in 2 episodes
• Core — 1× in this paper · explained in 2 episodes

Sources

• Planck 2018 results. IX. Constraints on primordial non-Gaussianity
• How Gaussian can our Universe be?
• The shape of non-Gaussianities
• Generation and Characterization of Large Non-Gaussianities in Single Field Inflation
• The primordial density perturbation in the curvaton scenario
• Quasi-Single Field Inflation and Non-Gaussianities
• The Scalar Chemical Potential in Cosmological Collider Physics
• A Cosmological Tachyon Collider: Enhancing the Long-Short Scale Coupling
• CMB Power Asymmetry from Non-Gaussian Modulation
• Signatures of anisotropic sources in the squeezed-limit bispectrum of the cosmic microwave background
• Effective Theory of Large-Scale Structure with Primordial Non-Gaussianity
• Acoustic Signatures in the Primary Microwave Background Bispectrum
• LSST Science Book, Version 2.0
• The Simons Observatory: Science goals and forecasts
• A Spectroscopic Road Map for Cosmic Frontier: DESI, DESI-II, Stage-5
• The Spectroscopic Stage-5 Experiment
• The SPHEREx Satellite Mission
• The imprints of primordial non-gaussianities on large-scale structure: scale dependent bias and abundance of virialized objects
• The effect of primordial non-Gaussianity on halo bias
• Constraints on local primordial non-Gaussianity from large scale structure

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