A new method to quantify the effects of baryons on the matter power spectrum

Abstract

Future large-scale galaxy surveys have the potential to become leading probes for cosmology provided the influence of baryons on the total mass distribution is understood well enough. As hydrodynamical simulations strongly depend on details in the feedback implementations, no unique and robust predictions for baryonic effects currently exist. In this paper we propose a baryonic correction model that modifies the density field of dark-matter-only $N$-body simulations to mimic the effects of baryons from any underlying adopted feedback recipe. The model assumes haloes to consist of 4 components: 1- hot gas in hydrostatical equilibrium, 2- ejected gas from feedback processes, 3- central galaxy stars, and 4- adiabatically relaxed dark matter, which all modify the initial dark-matter-only density profiles. These altered profiles allow to define a displacement field for particles in $N$-body simulations and to modify the total density field accordingly. The main advantage of the baryonic correction model is to connect the total matter density field to the observable distribution of gas and stars in haloes, making it possible to parametrise baryonic effects on the matter power spectrum. We show that the most crucial quantities are the mass fraction of ejected gas and its corresponding ejection radius. The former controls how strongly baryons suppress the power spectrum, while the latter provides a measure of the scale where baryonic effects become important. A comparison with X-ray and Sunyaev-Zel'dovich cluster observations suggests that baryons suppress wave modes above $k\sim 0.5$ h/Mpc with a maximum suppression of 10-25 percent around $k\sim 2$ h/Mpc. More detailed observations of the gas in the outskirts of groups and clusters are required to decrease the large uncertainties of these numbers.

published in JCAP

References in corpus (12)

• An Observational Determination of the Bolometric Quasar Luminosity Function
• Cosmology and Fundamental Physics with the Euclid Satellite
• An accurate halo model for fitting non-linear cosmological power spectra and baryonic feedback models
• Effects of Baryons and Dissipation on the Matter Power Spectrum
• Analytic models of plausible gravitational lens potentials
• Baryons, Neutrinos, Feedback and Weak Gravitational Lensing
• Analytic Prediction of Baryonic Effects from the EFT of Large Scale Structures
• Analytic model for the matter power spectrum, its covariance matrix, and baryonic effects
• The contributions of matter inside and outside of haloes to the matter power spectrum
• The galaxy cluster outskirts probed by Chandra
• Detection of Quasar Feedback from the Thermal Sunyaev-Zel'dovich Effect in Planck
• Baryonic effects on weak-lensing two-point statistics and its cosmological implications

Cited by in corpus (140)

• The Connection between Galaxies and their Dark Matter Halos
• Euclid. I. Overview of the Euclid mission
• The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics
• Core Cosmology Library: Precision Cosmological Predictions for LSST
• The BACCO Simulation Project: Exploiting the full power of large-scale structure for cosmology
• Euclid preparation: II. The EuclidEmulator -- A tool to compute the cosmology dependence of the nonlinear matter power spectrum
• Quantifying baryon effects on the matter power spectrum and the weak lensing shear correlation
• The impact of baryons on the matter power spectrum from the Horizon-AGN cosmological hydrodynamical simulation
• The BAHAMAS project: the CMB--large-scale structure tension and the roles of massive neutrinos and galaxy formation
• Large-scale dark matter simulations
• Exploring the effects of galaxy formation on matter clustering through a library of simulation power spectra
• Matter power spectrum and the challenge of percent accuracy
• Cosmological constraints with deep learning from KiDS-450 weak lensing maps
• The Observational Future of Cosmological Scalar-Tensor Theories
• Modeling baryonic physics in future weak lensing surveys
• The Abacus Cosmos: A Suite of Cosmological N-body Simulations
• Modelling the large scale structure of the Universe as a function of cosmology and baryonic physics
• Simulating Groups and the IntraGroup Medium: The Surprisingly Complex and Rich Middle Ground Between Clusters and Galaxies
• Cosmology in the era of Euclid and the Square Kilometre Array
• Emulation of baryonic effects on the matter power spectrum and constraints from galaxy cluster data
• A hydrodynamical halo model for weak-lensing cross correlations
• Baryonic effects for weak lensing. Part I. Power spectrum and covariance matrix
• Cosmological constraints from noisy convergence maps through deep learning
• The impact of the observed baryon distribution in haloes on the total matter power spectrum
• On the road to percent accuracy IV: ReACT -- computing the non-linear power spectrum beyond $\Lambda$CDM
• Dark Energy Survey Year 3 results: cosmological constraints from the analysis of cosmic shear in harmonic space
• DES Y3 cosmic shear down to small scales: constraints on cosmology and baryons
• Higher-order initial conditions for mixed baryon-CDM simulations
• Emulators for the non-linear matter power spectrum beyond $\Lambda$CDM
• Future constraints on halo thermodynamics from combined Sunyaev-Zel'dovich measurements
• Tomographic measurement of the intergalactic gas pressure through galaxy-tSZ cross-correlations
• Neutrino masses and beyond-$\Lambda$CDM cosmology with LSST and future CMB experiments
• Baryonic effects for weak lensing. Part II. Combination with X-ray data and extended cosmologies
• Calibration of bias and scatter involved in cluster mass measurements using optical weak gravitational lensing
• Simultaneous modelling of matter power spectrum and bispectrum in the presence of baryons
• SP(k) -- A hydrodynamical simulation-based model for the impact of baryon physics on the non-linear matter power spectrum
• Euclid: impact of nonlinear prescriptions on cosmological parameter estimation from weak lensing cosmic shear
• Constraining baryonic feedback and cosmology with weak-lensing, X-ray, and kinematic Sunyaev-Zeldovich observations
• A Full $w$CDM Analysis of KiDS-1000 Weak Lensing Maps using Deep Learning
• Baryonic effects on the matter bispectrum
• KiDS-1000: Combined halo-model cosmology constraints from galaxy abundance, galaxy clustering and galaxy-galaxy lensing
• Dark Energy Survey Year 1 Results: Constraining Baryonic Physics in the Universe
• Cosmological baryon transfer in the SIMBA simulations
• Euclid. V. The Flagship galaxy mock catalogue: a comprehensive simulation for the Euclid mission
• Constraining the Baryonic Feedback with Cosmic Shear Using the DES Year-3 Small-Scale Measurements
• Separate Universe Simulations with IllustrisTNG: baryonic effects on power spectrum responses and higher-order statistics
• Cosmic shear with small scales: DES-Y3, KiDS-1000 and HSC-DR1
• Discrepancies between CFHTLenS cosmic shear & Planck: new physics or systematic effects?
• Non-universality of the mass function: dependence on the growth rate and power spectrum shape
• $\kappa$TNG: Effect of Baryonic Processes on Weak Lensing with IllustrisTNG Simulations
• Effects of baryons on weak lensing peak statistics
• Spatial curvature endgame: Reaching the limit of curvature determination
• Validating a minimal galaxy bias method for cosmological parameter inference using HSC-SDSS mock catalogs
• CosmoGridV1: a simulated $w$CDM theory prediction for map-level cosmological inference
• Mixed dark matter: matter power spectrum and halo mass function
• A gradient based method for modeling baryons and matter in halos of fast simulations
• Breaking baryon-cosmology degeneracy with the electron density power spectrum
• The radial acceleration relation in a $\Lambda$CDM universe
• Cosmological constraints from HSC survey first-year data using deep learning
• The galaxy formation origin of the lensing is low problem
• Simultaneously constraining cosmology and baryonic physics via deep learning from weak lensing
• Weak lensing in the Horizon-AGN simulation lightcone. Small scale baryonic effects
• KiDS-SBI: Simulation-based inference analysis of KiDS-1000 cosmic shear
• Cosmological inference from emulator based halo model I: Validation tests with HSC and SDSS mock catalogs
• The Impact of Baryons on Cosmological Inference from Weak Lensing Statistics
• Cosmic Shear as a Probe of Galaxy Formation Physics
• The impact of baryons on the sensitivity of dark energy measurements
• Baryon Pasting Algorithm: Halo-based and Particle-based Pasting Methods
• CSST Cosmological Emulator I: Matter Power Spectrum Emulation with one percent accuracy to k = 10 h/Mpc
• The impact of baryonic physics and massive neutrinos on weak lensing peak statistics
• Enabling matter power spectrum emulation in beyond-$\Lambda$CDM cosmologies with COLA
• The FLAMINGO project: Baryon effects on the matter power spectrum
• The large-scale correlations of multi-cell densities and profiles, implications for cosmic variance estimates
• Probing Cosmology and Cluster Astrophysics with Multi-Wavelength Surveys I. Correlation Statistics
• Baryonic effects on CMB lensing and neutrino mass constraints
• On the degeneracy between baryon feedback and massive neutrinos as probed by matter clustering and weak lensing
• Impact of baryons in cosmic shear analyses with tomographic aperture mass statistics
• Effects of Baryonic Feedback on the Cosmic Web
• An Analytic Hybrid Halo + Perturbation Theory Model for Small-scale Correlators: Baryons, Halos, and Galaxies
• Multi-wavelength mock galaxy catalogs of the low-redshift Universe
• Avoiding baryonic feedback effects on neutrino mass measurements from CMB lensing
• Probing cosmology and gastrophysics with fast radio bursts: Cross-correlations of dark matter haloes and cosmic dispersion measures
• Towards a full $w$CDM map-based analysis for weak lensing surveys
• Constraining dark matter decays with cosmic microwave background and weak lensing shear observations
• Beyond Kaiser bias: mildly non-linear two-point statistics of densities in distant spheres
• Joint galaxy-galaxy lensing and clustering constraints on galaxy formation
• The BAHAMAS project: Effects of a running scalar spectral index on large-scale structure
• Cosmological Probes of Structure Growth and Tests of Gravity
• Probing the two-body decaying dark matter scenario with weak lensing and the cosmic microwave background
• Comparing weak lensing peak counts in baryonic correction models to hydrodynamical simulations
• Towards determining the neutrino mass hierarchy: weak lensing and galaxy clustering forecasts with baryons and intrinsic alignments
• Baryonic feedback measurement from KV450 cosmic shear analysis
• A numerical relativity scheme for cosmological simulations
• Devouring the Milky Way Satellites: Modeling Dwarf Galaxies with Galacticus
• Testing the Impact of Satellite Anisotropy on Large and Small Scale Intrinsic Alignments using Hydrodynamical Simulations
• The BAHAMAS project: Evaluating the accuracy of the halo model in predicting the non-linear matter power spectrum
• Imprint of baryons and massive neutrinos on velocity statistics
• Impact of baryonic feedback on HSC Y1 weak lensing non-Gaussian statistics
• Probing Feedback in Galaxy Formation with Millimeter-wave Observations
• Resolution Convergence in Cosmological Hydrodynamical Simulations Using Adaptive Mesh Refinement
• The phenomenology of the external field effect in cold dark matter models
• A field-level emulator for modeling baryonic effects across hydrodynamic simulations
• The halo bispectrum as a sensitive probe of massive neutrinos and baryon physics
• Baryonification extended to thermal Sunyaev Zeldovich
• On constraining Cosmology and the Halo Mass Function with Weak Gravitational Lensing
• The quasi-adiabatic relaxation of haloes in the IllustrisTNG and EAGLE cosmological simulations
• Turbulence-induced deviation between baryonic field and dark matter field in the spatial distribution of the Universe
• Baryonic Post-Processing of N-body Simulations, with Application to Fast Radio Bursts
• Mitigating baryon feedback bias in cosmic shear through a theoretical error covariance in the matter power spectrum
• Euclid preparation. Sensitivity to non-standard particle dark matter model
• Map-level baryonification: unified treatment of weak lensing two-point and higher-order statistics
• CSST Cosmological Emulator III: Hybrid Lagrangian Bias Expansion Emulation of Galaxy Clustering
• A test of invariance of dark matter halo surface density using multiwavelength mock galaxy catalogues
• Tele-Correlation: Calibrating Shear-Shear Correlation with Real Data
• The BACCO Simulation Project: A baryonification emulator with Neural Networks
• Constraining Hot Dark Matter Sub-Species with Weak Lensing and the Cosmic Microwave Background Radiation
• Quasi-2D Weak Lensing Cosmological Constraints Using the PDF-SYM method
• CFHTLenS: Galaxy bias as function of scale, stellar mass, and colour. Conflicts with predictions by semi-analytic models
• PoPE: A population-based approach to model spatial structure of astronomical systems
• The bias from hydrodynamic simulations: mapping baryon physics onto dark matter fields
• A 1% accurate method to include baryonic effects in galaxy-galaxy lensing models
• Calibrating baryonic effects in cosmic shear with external data in the LSST era
• Deciphering Baryonic Feedback from ACT tSZ Galaxy Clusters
• FLAMINGO: Galaxy formation and feedback effects on the gas density and velocity fields
• KiDS-1000: Detection of deviations from a purely cold dark matter power spectrum with tomographic weak gravitational lensing
• Mapping luminous and dark matter in the Universe
• The FLAMINGO simulations data release
• A Generative Model for Realistic Galaxy Cluster X-ray Morphologies
• The string theory swampland in the Euclid, SKA and Vera Rubin observatory era
• The signature of galaxy formation models in the power spectrum of the hydrogen 21cm line during reionization
• Decaying Dark Matter: Simulations and Weak-Lensing Forecast
• Euclid preparation. L. Calibration of the linear halo bias in $\Lambda (\nu )$CDM cosmologies
• Probing baryonic feedback with fast radio bursts: joint analyses with cosmic shear and galaxy clustering
• DUCA: Dynamic Universe Cosmological Analysis. I. The halo mass function in dynamical dark energy cosmologies
• Relativistic Angular Redshift Fluctuations embedded in Large Scale Varying Gravitational Potentials
• Dark Energy Survey Year 3 results: Cosmology with peaks using an emulator approach
• Physics beyond the Standard Model with the DSA-2000
• Response approach to the integrated shear 3-point correlation function: the impact of baryonic effects on small scales
• Cluster gravitational redshifts: uncertainties and survey requirements
• $\text{SBi3PCF:}$ Simulation-based inference with the integrated 3PCF