General framework for cosmological dark matter bounds using $N$-body simulations

Abstract

We present a general framework for obtaining robust bounds on the nature of dark matter using cosmological $N$-body simulations and Lyman-alpha forest data. We construct an emulator of hydrodynamical simulations, which is a flexible, accurate and computationally-efficient model for predicting the response of the Lyman-alpha forest flux power spectrum to different dark matter models, the state of the intergalactic medium (IGM) and the primordial power spectrum. The emulator combines a flexible parameterization for the small-scale suppression in the matter power spectrum arising in "non-cold" dark matter models, with an improved IGM model. We then demonstrate how to optimize the emulator for the case of ultra-light axion dark matter, presenting tests of convergence. We also carry out cross-validation tests of the accuracy of flux power spectrum prediction. This framework can be optimized for the analysis of many other dark matter candidates, e.g., warm or interacting dark matter. Our work demonstrates that a combination of an optimized emulator and cosmological "effective theories," where many models are described by a single set of equations, is a powerful approach for robust and computationally-efficient inference from the cosmic large-scale structure.

arXiv comment23 pages, 11 figures. Minor changes to match version accepted for publication in PRD. Companion letter: arXiv:2007.12705 "Strong bound on canonical ultra-light axion dark matter from the Lyman-alpha forest" (K. Rogers & H. Peiris)

References in corpus (76)

• emcee: The MCMC Hammer
• The cosmological simulation code GADGET-2
• Supersymmetric Dark Matter
• Cosmological parameters from CMB and other data: a Monte-Carlo approach
• A Tutorial on Bayesian Optimization of Expensive Cost Functions, with Application to Active User Modeling and Hierarchical Reinforcement Learning
• Observational evidence for self-interacting cold dark matter
• Cold and Fuzzy Dark Matter
• Ultralight scalars as cosmological dark matter
• GADGET: A code for collisionless and gasdynamical cosmological simulations
• Planck 2018 results. I. Overview and the cosmological legacy of Planck
• Radiative Transfer in a Clumpy Universe: II. The Utraviolet Extragalactic Background
• Radiative transfer in a clumpy universe: IV. New synthesis models of the cosmic UV/X-ray background
• Halo Formation in Warm Dark Matter Models
• Cosmological parameter analysis including SDSS Ly-alpha forest and galaxy bias: constraints on the primordial spectrum of fluctuations, neutrino mass, and dark energy
• Gaussian Process Optimization in the Bandit Setting: No Regret and Experimental Design
• Constraining Warm Dark Matter candidates including sterile neutrinos and light gravitinos with WMAP and the Lyman-alpha forest
• Equation of State of the Photoionized Intergalactic Medium
• Radiative Transfer in a Clumpy Universe: III. The Nature of Cosmological Ionizing Sources
• A New Calculation of the Ionizing Background Spectrum and the Effects of HeII Reionization
• New Constraints on the free-streaming of warm dark matter from intermediate and small scale Lyman-$\alpha$ forest data
• First constraints on fuzzy dark matter from Lyman-$\alpha$ forest data and hydrodynamical simulations
• The properties of warm dark matter haloes
• Dark Matter and Dark Radiation
• Lyman-alpha constraints on warm and on warm-plus-cold dark matter models
• Cores in Dwarf Galaxies from Dark Matter with a Yukawa Potential
• Strong bound on canonical ultra-light axion dark matter from the Lyman-alpha forest
• Constraining Dark Matter-Baryon Scattering with Linear Cosmology
• Neutrino masses and cosmology with Lyman-alpha forest power spectrum
• Dark-Matter Electric and Magnetic Dipole Moments
• Inferring the dark matter power spectrum from the Lyman-alpha forest in high-resolution QSO absorption spectra
• Constraining the mass of light bosonic dark matter using SDSS Lyman-$\alpha$ forest
• HeII Reionization and its Effect on the IGM
• ETHOS - An Effective Theory of Structure Formation: From dark particle physics to the matter distribution of the Universe
• Lyman-alpha Constraints on Ultralight Scalar Dark Matter: Implications for the Early and Late Universe
• The Coyote Universe II: Cosmological Models and Precision Emulation of the Nonlinear Matter Power Spectrum
• The one-dimensional Ly-alpha forest power spectrum from BOSS
• The Lyman-$\alpha$ forest in optically-thin hydrodynamical simulations
• Dark Matter Searches at Colliders
• Probing sub-GeV Dark Matter-Baryon Scattering with Cosmological Observables
• Consistent modelling of the meta-galactic UV background and the thermal/ionization history of the intergalactic medium
• Constraints on neutrino masses from Lyman-alpha forest power spectrum with BOSS and XQ-100
• Ultra-Light Scalar Fields and the Growth of Structure in the Universe
• Cosmology Constraints from the Weak Lensing Peak Counts and the Power Spectrum in CFHTLenS
• The one-dimensional power spectrum from the SDSS DR14 Ly$\alpha$ forests
• Possible evidence for an inverted temperature-density relation in the intergalactic medium from the flux distribution of the Lyman-alpha forest
• Revealing reionization with the thermal history of the intergalactic medium: new constraints from the Lyman-$\alpha$ flux power spectrum
• Large fluctuations in the hydrogen-ionizing background and mean free path following the epoch of reionization
• "Non-cold" dark matter at small scales: a general approach
• The Aemulus Project III: Emulation of the Galaxy Correlation Function
• Constraint on neutrino masses from SDSS-III/BOSS Ly$\alpha$ forest and other cosmological probes
• The Aemulus Project II: Emulating the Halo Mass Function
• On the road to percent accuracy: nonlinear reaction of the matter power spectrum to dark energy and modified gravity
• AREPO-RT: Radiation hydrodynamics on a moving mesh
• Matter power spectrum: from Ly$\alpha$ forest to CMB scales
• Constraining Dark Matter -- Dark Radiation interactions with CMB, BAO, and Lyman-$\alpha$
• Emulating the CFHTLenS Weak Lensing data: Cosmological Constraints from moments and Minkowski functionals
• Modelling the uv/x-ray cosmic background with CUBA
• Self-Consistent Modeling of Reionization in Cosmological Hydrodynamical Simulations
• Cosmic Emulation: Fast Predictions for the Galaxy Power Spectrum
• Novel constraints on non-cold (non-thermal) Dark Matter from Lyman-$\alpha$ forest data
• Future CMB tests of dark matter: ultra-light axions and massive neutrinos
• keV Sterile Neutrino Dark Matter from Singlet Scalar Decays: The Most General Case
• Bayesian emulator optimisation for cosmology: application to the Lyman-alpha forest
• A New Precision Measurement of the Small-Scale Line-of-Sight Power Spectrum of the Ly$\alpha$ Forest
• An Emulator for the Lyman-alpha Forest
• Evaluating machine learning techniques for predicting power spectra from reionization simulations
• Inferring the IGM thermal history during reionisation with the Lyman-$\alpha$ forest power spectrum at redshift $z\simeq 5$
• On the road to percent accuracy II: calibration of the non-linear matter power spectrum for arbitrary cosmologies
• Hints, neutrino bounds and WDM constraints from SDSS DR14 Lyman-$\alpha$ and Planck full-survey data
• Deep Learning for space-variant deconvolution in galaxy surveys
• Inhomogeneous Reionization Models in Cosmological Hydrodynamical Simulations
• Imprints of temperature fluctuations on the $z\sim 5$ Lyman-$\alpha$ forest: a view from radiation-hydrodynamic simulations of reionization
• Efficient acquisition rules for model-based approximate Bayesian computation
• Dark Matter in Light of LUX
• Large-scale fluctuations in the cosmic ionising background: the impact of beamed source emission
• Cosmic Inference: Constraining Parameters With Observations and Highly Limited Number of Simulations

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• The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics
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• An emulator for the Lyman-$\alpha$ forest in beyond-$\Lambda$CDM cosmologies
• $5\sigma$ tension between Planck cosmic microwave background and eBOSS Lyman-alpha forest and constraints on physics beyond $\Lambda$CDM
• Cosmological Constraints from the eBOSS Lyman-$\alpha$ Forest using the PRIYA Simulations
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• Neutrino mass bounds from confronting an effective model with BOSS Lyman-alpha data
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• pop-cosmos: A comprehensive picture of the galaxy population from COSMOS data
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• Bayesian Control Variates for optimal covariance estimation with pairs of simulations and surrogates
• A field-level emulator for modeling baryonic effects across hydrodynamic simulations
• Prospects for disentangling dark matter with weak lensing
• MF-Box: Multi-fidelity and multi-scale emulation for the matter power spectrum
• Data-Space Validation of High-Dimensional Models by Comparing Sample Quantiles
• Constraining Ultralight Axions with Galaxy Surveys
• Interference in Fuzzy Dark Matter Filaments: Idealised Models and Statistics
• Accretion, Evaporation and Superradiance Phase Diagram of (Primordial) Black Holes and $10^{-21}-10^{21}$ eV Scalar, Vector, Tensor Fields
• ForestFlow: predicting the Lyman-$\alpha$ forest clustering from linear to nonlinear scales
• Towards characterizing dark matter subhalo perturbations in stellar streams with graph neural networks
• Neural network emulator to constrain the high-$z$ IGM thermal state from Lyman-$\alpha$ forest flux auto-correlation function