Baryonic effects on the matter bispectrum

Abstract

The large-scale clustering of matter is impacted by baryonic physics, particularly AGN feedback. Modelling or mitigating this impact will be essential for making full use of upcoming measurements of cosmic shear and other large-scale structure probes. We study baryonic effects on the matter bispectrum, using measurements from a selection of state-of-the-art hydrodynamical simulations: IllustrisTNG, Illustris, EAGLE, and BAHAMAS. We identify a low-redshift enhancement of the bispectrum, peaking at $k\sim 3h{\mathrm{Mpc}}^{-1}$, that is present in several simulations, and discuss how it can be associated to the evolving nature of AGN feedback at late times. This enhancement does not appear in the matter power spectrum, and therefore represents a new source of degeneracy breaking between two- and three-point statistics. In addition, we provide physical interpretations for other aspects of these measurements, and make initial comparisons to predictions from perturbation theory, empirical fitting formulas, and the response function formalism. We publicly release our measurements (including estimates of their uncertainty due to sample variance) and bispectrum measurement code as resources for the community.

29 pages, 24 figures. v2: MNRAS published version, with references and clarifications added (conclusions unchanged). See Fig. 13 for a summary of the main results. Simulation measurements are available at https://github.com/sjforeman/hydro_bispectrum , and bispectrum measurement code is available at https://github.com/sjforeman/bskit

References in corpus (132)

• Planck 2015 results. XIII. Cosmological parameters
• Planck 2013 results. XVI. Cosmological parameters
• The cosmological simulation code GADGET-2
• Nine-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Parameter Results
• The EAGLE project: Simulating the evolution and assembly of galaxies and their environments
• E pur si muove: Galiliean-invariant cosmological hydrodynamical simulations on a moving mesh
• Cosmological SPH simulations: A hybrid multi-phase model for star formation
• Stable clustering, the halo model and nonlinear cosmological power spectra
• Halo Models of Large Scale Structure
• Simulating Galaxy Formation with the IllustrisTNG Model
• Large-Scale Structure of the Universe and Cosmological Perturbation Theory
• First results from the IllustrisTNG simulations: matter and galaxy clustering
• Ultralight scalars as cosmological dark matter
• First results from the IllustrisTNG simulations: the stellar mass content of groups and clusters of galaxies
• Planck 2018 results. I. Overview and the cosmological legacy of Planck
• First results from the IllustrisTNG simulations: the galaxy color bimodality
• The EAGLE simulations of galaxy formation: calibration of subgrid physics and model variations
• Properties of galaxies reproduced by a hydrodynamic simulation
• First results from the IllustrisTNG simulations: A tale of two elements -- chemical evolution of magnesium and europium
• Simulating galaxy formation with black hole driven thermal and kinetic feedback
• Dark Energy Survey Year 1 Results: Cosmological Constraints from Galaxy Clustering and Weak Lensing
• Revising the Halofit Model for the Nonlinear Matter Power Spectrum
• First results from the IllustrisTNG simulations: radio haloes and magnetic fields
• Introducing the Illustris Project: the evolution of galaxy populations across cosmic time
• A model for cosmological simulations of galaxy formation physics
• Power Spectrum Analysis of Three-Dimensional Redshift Surveys
• Dancing in the dark: galactic properties trace spin swings along the cosmic web
• The physics driving the cosmic star formation history
• The imprints of primordial non-gaussianities on large-scale structure: scale dependent bias and abundance of virialized objects
• Large-Scale Galaxy Bias
• The Illustris simulation: the evolving population of black holes across cosmic time
• The Effective Field Theory of Cosmological Large Scale Structures
• The Illustris Simulation: Public Data Release
• The BAHAMAS project: Calibrated hydrodynamical simulations for large-scale structure cosmology
• The EAGLE simulations of galaxy formation: public release of halo and galaxy catalogues
• Supermassive black holes and their feedback effects in the IllustrisTNG simulation
• The effects of galaxy formation on the matter power spectrum: A challenge for precision cosmology
• An accurate halo model for fitting non-linear cosmological power spectra and baryonic feedback models
• Weak lensing for precision cosmology
• Effects of Baryons and Dissipation on the Matter Power Spectrum
• Baryon effects on the internal structure of LCDM halos in the EAGLE simulations
• Towards a realistic population of simulated galaxy groups and clusters
• The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: RSD measurement from the power spectrum and bispectrum of the DR12 BOSS galaxies
• A physical model for cosmological simulations of galaxy formation: multi-epoch validation
• The Coyote Universe I: Precision Determination of the Nonlinear Matter Power Spectrum
• Power Spectrum Super-Sample Covariance
• The cosmic evolution of massive black holes in the Horizon-AGN simulation
• nbodykit: an open-source, massively parallel toolkit for large-scale structure
• Correcting for the alias effect when measuring the power spectrum using FFT
• Accurate Estimators of Correlation Functions in Fourier Space
• Neutrino mass from Cosmology
• The power spectrum and bispectrum of SDSS DR11 BOSS galaxies I: bias and gravity
• A new method to quantify the effects of baryons on the matter power spectrum
• The influence of baryons on the clustering of matter and weak lensing surveys
• Super-Sample Covariance in Simulations
• 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 Bispectrum: From Theory to Observations
• Calibrating the Nonlinear Matter Power Spectrum: Requirements for Future Weak Lensing Surveys
• The Effective Field Theory of Large Scale Structures at Two Loops
• Initial conditions to cosmological N-body simulations, or how to run an ensemble of simulations
• The impact of galaxy formation on the total mass, mass profile and abundance of haloes
• CFHTLenS: Cosmological constraints from a combination of cosmic shear two-point and three-point correlations
• The BAHAMAS project: the CMB--large-scale structure tension and the roles of massive neutrinos and galaxy formation
• Modelling baryonic feedback for survey cosmology
• The quenching and morphological evolution of central galaxies is facilitated by the feedback-driven expulsion of circumgalactic gas
• 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
• The Bispectrum in the Effective Field Theory of Large Scale Structure
• Baryons and weak lensing power spectra
• On measuring the covariance matrix of the nonlinear power spectrum from simulations
• Density profile of dark matter haloes and galaxies in the Horizon-AGN simulation: the impact of AGN feedback
• Growth of Cosmic Structure: Probing Dark Energy Beyond Expansion
• A Fitting Formula for the Non-Linear Evolution of the Bispectrum
• Effect of Hot Baryons on the Weak-Lensing Shear Power Spectrum
• Effect of baryonic feedback on two- and three-point shear statistics: prospects for detection and improved modelling
• Constraining Primordial non-Gaussianity with Bispectrum and Power Spectum from Upcoming Optical and Radio Surveys
• Constraining $M_{\nu }$ with the Bispectrum I: Breaking Parameter Degeneracies
• Measuring neutrino masses with large-scale structure: Euclid forecast with controlled theoretical error
• Separate Universe Simulations
• Cosmological information in the redshift-space bispectrum
• Information content of weak lensing power spectrum and bispectrum: including the non-Gaussian error covariance matrix
• Modeling baryonic physics in future weak lensing surveys
• Baryons, Neutrinos, Feedback and Weak Gravitational Lensing
• Accounting for baryonic effects in cosmic shear tomography: Determining a minimal set of nuisance parameters using PCA
• The One-Loop Matter Bispectrum in the Effective Field Theory of Large Scale Structures
• Analytic Prediction of Baryonic Effects from the EFT of Large Scale Structures
• The effect of baryons on redshift space distortions and cosmic density and velocity fields in the EAGLE simulation
• Assessment of the Information Content of the Power Spectrum and Bispectrum
• An improved fitting formula for the dark matter bispectrum
• Hyperextended Cosmological Perturbation Theory: Predicting Non-linear Clustering Amplitudes
• The Tau of Galaxy Clusters
• The impact of the observed baryon distribution in haloes on the total matter power spectrum
• The separate and combined effects of baryon physics and neutrino free-streaming on large-scale structure
• General Requirements on Matter Power Spectrum Predictions for Cosmology with Weak Lensing Tomography
• Towards a self-consistent halo model for the nonlinear large-scale structure
• Complete super-sample lensing covariance in the response approach
• Primordial Features from Linear to Nonlinear Scales
• Constraining Neutrino Mass with the Tomographic Weak Lensing Bispectrum
• Statistical properties of paired fixed fields
• DEMNUni: Massive neutrinos and the bispectrum of large scale structures
• Scratches from the Past: Inflationary Archaeology through Features in the Power Spectrum of Primordial Fluctuations
• Inflation and Early Dark Energy with a Stage II Hydrogen Intensity Mapping Experiment
• Responses in Large-Scale Structure
• The contributions of matter inside and outside of haloes to the matter power spectrum
• Linear response to long wavelength fluctuations using curvature simulations
• Bias to CMB Lensing Reconstruction from Temperature Anisotropies due to Large-Scale Galaxy Motions
• Probing the diffuse baryon distribution with the lensing-tSZ cross-correlation
• Enhancing BOSS bispectrum cosmological constraints with maximal compression
• The EAGLE simulations of galaxy formation: Public release of particle data
• Towards optimal cosmological parameter recovery from compressed bispectrum statistics
• On the effect of non-Gaussian lensing deflections on CMB lensing measurements
• Separate Universe Simulations with IllustrisTNG: baryonic effects on power spectrum responses and higher-order statistics
• Bispectrum Supersample Covariance
• CMB Lensing Bispectrum from Nonlinear Growth of the Large Scale Structure
• Biased Tracers of Two Fluids in the Lagrangian Picture
• Response Approach to the Matter Power Spectrum Covariance
• Cosmological N-Body Simulations with a Large-Scale Tidal Field
• Baryonic effects on weak-lensing two-point statistics and its cosmological implications
• The squeezed matter bispectrum covariance with responses
• Probing hot gas around luminous red galaxies through the Sunyaev-Zel'dovich effect
• Halo Sampling, Local Bias and Loop Corrections
• Anisotropic halo assembly bias and redshift-space distortions
• Cosmic Shear as a Probe of Galaxy Formation Physics
• Inference from the small scales of cosmic shear with current and future Dark Energy Survey data
• Baryonic effects on CMB lensing and neutrino mass constraints
• The CMB lensing bi-spectrum as a probe of modified gravity theories
• Cosmological parameters from weak lensing power spectrum and bispectrum tomography: including the non-Gaussian errors
• Efficient parallel algorithm for estimating higher-order polyspectra
• KSZ tomography and the bispectrum
• Tomographic weak lensing bispectrum: a thorough analysis towards the next generation of galaxy surveys
• Advancing the matter bispectrum estimation of large-scale structure: a comparison of dark matter codes

Cited by in corpus (38)

• The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics
• Large-scale dark matter simulations
• Fisher for complements: Extracting cosmology and neutrino mass from the counts-in-cells PDF
• Constraining $M_{\nu }$ with the Bispectrum II: The Total Information Content of the Galaxy Bispectrum
• Accurate initial conditions for cosmological N-body simulations: Minimizing truncation and discreteness errors
• Baryonic effects for weak lensing. Part I. Power spectrum and covariance matrix
• How baryons affect halos and large-scale structure: a unified picture from the Simba simulation
• Higher-order initial conditions for mixed baryon-CDM simulations
• A flexible modelling of galaxy assembly bias
• Primordial non-Gaussianity without tails -- how to measure fNL with the bulk of the density PDF
• Baryonic effects for weak lensing. Part II. Combination with X-ray data and extended cosmologies
• Simultaneous modelling of matter power spectrum and bispectrum in the presence of baryons
• Modeling Dark Photon Oscillations in Our Inhomogeneous Universe
• Quijote-PNG: Simulations of primordial non-Gaussianity and the information content of the matter field power spectrum and bispectrum
• $\kappa$TNG: Effect of Baryonic Processes on Weak Lensing with IllustrisTNG Simulations
• AI-assisted super-resolution cosmological simulations II: Halo substructures, velocities and higher order statistics
• Self-calibration of weak lensing systematic effects using combined two- and three-point statistics
• $\mathrm{S}\mathrm{IM}\mathrm{BIG}$: Mock Challenge for a Forward Modeling Approach to Galaxy Clustering
• Inferring the impact of feedback on the matter distribution using the Sunyaev Zel'dovich effect: Insights from CAMELS simulations and ACT+DES data
• From EMBER to FIRE: predicting high resolution baryon fields from dark matter simulations with Deep Learning
• Neural networks as optimal estimators to marginalize over baryonic effects
• Avoiding baryonic feedback effects on neutrino mass measurements from CMB lensing
• Neutrino Mass Signatures in the Galaxy Bispectrum
• Cosmology from the integrated shear 3-point correlation function: simulated likelihood analyses with machine-learning emulators
• Super-sample covariance of the power spectrum, bispectrum, halos, voids, and their cross covariances
• Imprint of baryons and massive neutrinos on velocity statistics
• Three-point intrinsic alignments of dark matter halos in the IllustrisTNG simulation
• Simultaneous Dependence of Matter Clustering on Scale and Environment
• A field-level emulator for modeling baryonic effects across hydrodynamic simulations
• The halo bispectrum as a sensitive probe of massive neutrinos and baryon physics
• How do baryonic effects on the cosmic matter distribution vary with scale and local density environment?
• Baryonic Post-Processing of N-body Simulations, with Application to Fast Radio Bursts
• Third-order intrinsic alignment of SDSS BOSS LOWZ galaxies
• Calibrating baryonic effects in cosmic shear with external data in the LSST era
• Mapping luminous and dark matter in the Universe
• Three-point intrinsic alignments of galaxies and haloes in the FLAMINGO simulations
• Quijote PNG: The information content of the halo power spectrum and bispectrum
• Response approach to the integrated shear 3-point correlation function: the impact of baryonic effects on small scales