Power Spectra for Cold Dark Matter and its Variants
arXiv:astro-ph/9710252 · doi:10.1086/306640
Abstract
The bulk of recent cosmological research has focused on the adiabatic cold dark matter model and its simple extensions. Here we present an accurate fitting formula that describes the matter transfer functions of all common variants, including mixed dark matter models. The result is a function of wavenumber, time, and six cosmological parameters: the massive neutrino density, number of neutrino species degenerate in mass, baryon density, Hubble constant, cosmological constant, and spatial curvature. We show how observational constraints---e.g. the shape of the power spectrum, the abundance of clusters and damped Lyman-alpha systems, and the properties of the Lyman-alpha forest--- can be extended to a wide range of cosmologies, including variations in the neutrino and baryon fractions in both high-density and low-density universes.
20 pages, LaTeX, 4 figures. Submitted to ApJ. Electronic versions of the fitting formula, as well as simple codes to output cosmological quantities (e.g. sigma_8) as a function of parameters and illustrative animations of parameter dependence, are available at http://www.sns.ias.edu/~whu/transfer/transfer.html
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- The Santa Fe Light Cone Simulation Project: II. The Prospects for Direct Detection of the WHIM with SZE Surveys
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- Extremely-Metal Poor Stars in the Milky Way: A Second Generation Formed after Reionization
- Weak Lensing by Intergalactic Mini-Structures in Quadruple Lens Systems: Simulation and Detection
- The Complementarity of Redshift-space Distortions and the Integrated Sachs-Wolfe Effect: A 3D Spherical Analysis
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- Characterising the signatures of star-forming galaxies in the extra-galactic -ray background
- Bayesian power-spectrum inference with foreground and target contamination treatment
- Comparison of observing modes for statistical estimation of the 21cm signal from the Epoch of Reionisation
- Breaking Cosmological Degeneracies in Galaxy Cluster Surveys with a Physical Model of Cluster Structure
- The nonlinear evolution of baryonic overdensities in the early universe: Initial conditions of numerical simulations
- Beyond the growth rate of cosmic structure: Testing modified gravity models with an extra degree of freedom
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- Predictions of Quasar Clustering: Redshift, Luminosity and Selection Dependence
- Validating the Fisher approach for stage IV spectroscopic surveys
- Effects of neutrino mass and asymmetry on cosmological structure formation
- Halo statistics in non-Gaussian cosmologies: the collapsed fraction, conditional mass function, and halo bias from the path-integral excursion set method
- The Chandra COSMOS Legacy Survey: clustering dependence of Type 2 AGN on host galaxy properties
- AMICO galaxy clusters in KiDS-DR3: measuring the splashback radius from weak gravitational lensing
- Stacking weak lensing signals of SZ clusters to constrain cluster physics
- A Simple Analytic Treatment of Linear Growth of Structure with Baryon Acoustic Oscillations
- Modification of the 21-cm power spectrum by quasars during the epoch of reionisation
- On Mitigation of the Uncertainty in Nonlinear Matter Clustering for Cosmic Shear Tomography
- Neutrino footprint in Large Scale Structure
- Cosmological parameters from complementary observations of the Universe
- syren-new: Precise formulae for the linear and nonlinear matter power spectra with massive neutrinos and dynamical dark energy
- The Stellar-to-Halo Mass Ratios of Passive and Star-Forming Galaxies at z~2-3 from the SMUVS survey
- Role of the Hubble Scale in the Weak Lensing vs. CMB Tension
- Constraining f(R) gravity with cross-correlation of galaxies and cosmic microwave background lensing
- Decaying warm dark matter and structure formation
- A Halo Occupation Interpretation Of Quasars At Using Very Small Scale Clustering Information
- Using machine learning to compress the matter transfer function
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- The effects of primordial non-Gaussianity on giant-arc statistics
- Field-Based Physical Inference From Peculiar Velocity Tracers
- Anisotropy in the matter distribution beyond the baryonic acoustic oscillation scale
- Cross-correlating the Thermal Sunyaev-Zel'dovich Effect and the Distribution of Galaxy Clusters
- Future sensitivity of neutrino telescopes to dark matter annihilations from the cosmic diffuse neutrino signal
- A group-galaxy cross-correlation function analysis in zCOSMOS
- The Lyman-alpha forest at redshifts 0.1 -- 1.6: good agreement between a large hydrodynamic simulation and HST spectra
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- The Statistical Discrepancy between the IGM and Dark Matter Fields: One-Point Statistics
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- The Anisotropy of the Extragalactic Radio Background from Dark Matter Annihilation
- Euclid preparation. Modelling spectroscopic clustering on mildly nonlinear scales in beyond-CDM models
- Finding structure in the dark: coupled dark energy, weak lensing, and the mildly nonlinear regime
- Little Red Dots as Direct-collapse Black Hole Nurseries
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- Constraining the neutrino mass using a multi-tracer combination of two galaxy surveys and CMB lensing
- The XMM-Newton Wide Field Survey in the COSMOS Field: Clustering Dependence of X-ray Selected AGN on Host Galaxy Properties
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- Clustering of CODEX clusters
- Effects of P-wave Annihilation on the Angular Power Spectrum of Extragalactic Gamma-rays from Dark Matter Annihilation
- Probing reionization using quasar near-zones at redshift z ~ 6
- Noise Estimates for Measurements of Weak Lensing from the Lyman-alpha Forest
- Nonsingular density profiles of dark matter halos and Strong gravitational lensing
- Feedback Processes in Early-Type Galaxies
- The Properties of X-ray Cold Fronts in a Statistical Sample of Simulated Galaxy Clusters
- Detecting baryon acoustic oscillations by 3d weak lensing
- LimberJack.jl: auto-differentiable methods for angular power spectra analyses
- Quintessential early dark energy
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