Constraining the Baryonic Feedback with Cosmic Shear Using the DES Year-3 Small-Scale Measurements

Abstract

We use the small scales of the Dark Energy Survey (DES) Year-3 cosmic shear measurements, which are excluded from the DES Year-3 cosmological analysis, to constrain the baryonic feedback. To model the baryonic feedback, we adopt a baryonic correction model and use the numerical package \texttt{Baccoemu} to accelerate the evaluation of the baryonic nonlinear matter power spectrum. We design our analysis pipeline to focus on the constraints of the baryonic suppression effects, utilizing the implication given by a principal component analysis on the Fisher forecasts. Our constraint on the baryonic effects can then be used to better model and ameliorate the effects of baryons in producing cosmological constraints from the next generation large-scale structure surveys. We detect the baryonic suppression on the cosmic shear measurements with a $\sim 2\sigma$ significance. The characteristic halo mass for which half of the gas is ejected by baryonic feedback is constrained to be $M_c>10^{13.2}{h}^{-1}{M}_{\odot }$ (95\% C.L.). The best-fit baryonic suppression is $\sim 5\%$ at $k=1.0\mathrm{Mpc}{h}^{-1}$ and $\sim 15\%$ at $k=5.0\mathrm{Mpc}{h}^{-1}$. Our findings are robust with respect to the assumptions about the cosmological parameters, specifics of the baryonic model, and intrinsic alignments.

arXiv comment20 pages, 10 figures. DES Collaboration, Year-3 analysis

References in corpus (60)

• The EAGLE project: Simulating the evolution and assembly of galaxies and their environments
• Introducing the Illustris Project: Simulating the coevolution of dark and visible matter in the Universe
• Large Magellanic Cloud Cepheid Standards Provide a 1% Foundation for the Determination of the Hubble Constant and Stronger Evidence for Physics Beyond LambdaCDM
• First results from the IllustrisTNG simulations: matter and galaxy clustering
• Chandra sample of nearby relaxed galaxy clusters: mass, gas fraction, and mass-temperature relation
• Dark Energy Survey Year 3 Results: Cosmological Constraints from Galaxy Clustering and Weak Lensing
• Revising the Halofit Model for the Nonlinear Matter Power Spectrum
• The physics driving the cosmic star formation history
• KiDS-1000 Cosmology: Cosmic shear constraints and comparison between two point statistics
• PolyChord: nested sampling for cosmology
• The Cosmic Linear Anisotropy Solving System (CLASS) I: Overview
• The BAHAMAS project: Calibrated hydrodynamical simulations for large-scale structure cosmology
• Dark Energy Survey Year 3 Results: Cosmology from Cosmic Shear and Robustness to Data Calibration
• Dark Energy Survey Year 3 Results: Cosmology from Cosmic Shear and Robustness to Modeling Uncertainty
• Towards a realistic population of simulated galaxy groups and clusters
• HMcode-2020: Improved modelling of non-linear cosmological power spectra with baryonic feedback
• Stellar and total baryon mass fractions in groups and clusters since redshift 1
• Galaxy Cluster Baryon Fractions Revisited
• CosmoSIS: modular cosmological parameter estimation
• Accurate halo-model matter power spectra with dark energy, massive neutrinos and modified gravitational forces
• B-modes in cosmic shear from source redshift clustering
• Dark Energy Survey Year 1 Results: Weak Lensing Mass Calibration of redMaPPer Galaxy Clusters
• Beyond linear galaxy alignments
• A new method to quantify the effects of baryons on the matter power spectrum
• Calibration of the galaxy cluster M_500-Y_X relation with XMM-Newton
• Dark Energy Survey Year 3 Results: Photometric Data Set for Cosmology
• The BACCO Simulation Project: Exploiting the full power of large-scale structure for cosmology
• Dark Energy Survey Year 3 Results: Weak Lensing Shape Catalogue
• The BAHAMAS project: the CMB--large-scale structure tension and the roles of massive neutrinos and galaxy formation
• Exploring the effects of galaxy formation on matter clustering through a library of simulation power spectra
• Is the Jeffreys' scale a reliable tool for Bayesian model comparison in cosmology?
• One simulation to fit them all - changing the background parameters of a cosmological N-body simulation
• Modeling baryonic physics in future weak lensing surveys
• The Atacama Cosmology Telescope: Component-separated maps of CMB temperature and the thermal Sunyaev-Zel'dovich effect
• Modelling the large scale structure of the Universe as a function of cosmology and baryonic physics
• Emulation of baryonic effects on the matter power spectrum and constraints from galaxy cluster data
• Joint constraints on cosmology and the impact of baryon feedback: combining KiDS-1000 lensing with the thermal Sunyaev-Zeldovich effect from Planck and ACT
• Dark Energy Survey Year 3 Results: Clustering Redshifts -- Calibration of the Weak Lensing Source Redshift Distributions with redMaGiC and BOSS/eBOSS
• Quantifying dimensionality: Bayesian cosmological model complexities
• Reduced Shear Power Spectrum
• Mitigating Shear-dependent Object Detection Biases with Metacalibration
• Simultaneous modelling of matter power spectrum and bispectrum in the presence of baryons
• 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
• Cosmology with the Wide-Field Infrared Survey Telescope -- Synergies with the Rubin Observatory Legacy Survey of Space and Time
• How to add massive neutrinos to your $\Lambda$CDM simulation -- extending cosmology rescaling algorithms
• Dark Energy Survey Year 1 Results: Constraining Baryonic Physics in the Universe
• Blinding multi-probe cosmological experiments
• Dark Energy Survey Year 3 Results: Multi-Probe Modeling Strategy and Validation
• 3\%-accurate predictions for the clustering of dark matter, haloes and subhaloes, over a wide range of cosmologies and scales
• Cross-correlation of DES Y3 lensing and ACT/$Planck$ thermal Sunyaev Zel'dovich Effect II: Modeling and constraints on halo pressure profiles
• Accelerating Large-Scale-Structure data analyses by emulating Boltzmann solvers and Lagrangian Perturbation Theory
• Dark Energy Survey internal consistency tests of the joint cosmological probes analysis with posterior predictive distributions
• Breaking baryon-cosmology degeneracy with the electron density power spectrum
• Cross-correlation of DES Y3 lensing and ACT/$Planck$ thermal Sunyaev Zel'dovich Effect I: Measurements, systematics tests, and feedback model constraints
• Measuring the hydrostatic mass bias in galaxy clusters by combining Sunyaev-Zel'dovich and CMB lensing data
• Inference from the small scales of cosmic shear with current and future Dark Energy Survey data
• Percent-level constraints on baryonic feedback with spectral distortion measurements
• Comparing weak lensing peak counts in baryonic correction models to hydrodynamical simulations
• Baryonic feedback measurement from KV450 cosmic shear analysis

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• DES Y3 + KiDS-1000: Consistent cosmology combining cosmic shear surveys
• DES Y3 cosmic shear down to small scales: constraints on cosmology and baryons
• SP(k) -- A hydrodynamical simulation-based model for the impact of baryon physics on the non-linear matter power spectrum
• Cosmic shear with small scales: DES-Y3, KiDS-1000 and HSC-DR1
• The galaxy formation origin of the lensing is low problem
• Inferring the impact of feedback on the matter distribution using the Sunyaev Zel'dovich effect: Insights from CAMELS simulations and ACT+DES data
• Mapping gas around massive galaxies: cross-correlation of DES Y3 galaxies and Compton-$y$-maps from SPT and Planck
• An empirical approach to model selection: weak lensing and intrinsic alignments
• Status of the $S_8$ Tension: A 2026 Review of Probe Discrepancies
• Baryonification extended to thermal Sunyaev Zeldovich
• Map-level baryonification: unified treatment of weak lensing two-point and higher-order statistics
• syren-baryon: Analytic emulators for the impact of baryons on the matter power spectrum
• Calibrating baryonic effects in cosmic shear with external data in the LSST era
• A 1% accurate method to include baryonic effects in galaxy-galaxy lensing models
• Matter power spectrum reconstruction with KiDS-Legacy: Improved internal $\Lambda$CDM consistency and preference for strong baryonic feedback
• Deciphering Baryonic Feedback from ACT tSZ Galaxy Clusters