Robustness of baryon acoustic oscillation constraints for early-Universe modifications to $\Lambda$CDM

Abstract

Baryon acoustic oscillations (BAO) provide a robust standard ruler, and can be used to constrain the expansion history of the Universe at low redshift. Standard BAO analyses return a model-independent measurement of the expansion rate and the comoving angular diameter distance as function of redshift, normalized by the sound horizon at radiation drag. However, this methodology relies on anisotropic distance distortions of a fixed, pre-computed template (obtained in a given fiducial cosmology) in order to fit the observations. Therefore, it may be possible that extensions to the consensus $\Lambda$CDM add contributions to the BAO feature that cannot be captured by the template fitting. We perform mock BAO fits to power spectra computed assuming cosmological models which modify the growth of perturbations prior to recombination in order to test the robustness of the standard BAO analysis. We find no significant bias in the BAO analysis for the models under study ($\Lambda$CDM with a free effective number of relativistic species, early dark energy, and a model with interactions between neutrinos and a fraction of the dark matter), even for cases which do not provide a good fit to \textit{Planck} measurements of the cosmic microwave background power spectra. This result supports the use of the standard BAO analysis and its measurements to perform cosmological parameter inference and to constrain exotic models. In addition, we provide a methodology to reproduce our study for different models and surveys, as well as discuss different options to handle eventual biases in the BAO measurements.

arXiv comment22 pages, 4 figures. Minor changes, discussion improved, conclusions unchanged

References in corpus (108)

• emcee: The MCMC Hammer
• Planck 2015 results. XIII. Cosmological parameters
• Detection of the Baryon Acoustic Peak in the Large-Scale Correlation Function of SDSS Luminous Red Galaxies
• The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: cosmological analysis of the DR12 galaxy sample
• The Complete Light-curve Sample of Spectroscopically Confirmed Type Ia Supernovae from Pan-STARRS1 and Cosmological Constraints from The Combined Pantheon Sample
• The 6dF Galaxy Survey: Baryon Acoustic Oscillations and the Local Hubble Constant
• The Cosmic Linear Anisotropy Solving System (CLASS) II: Approximation schemes
• Baryonic Features in the Matter Transfer Function
• The 2dF Galaxy Redshift Survey: Power-spectrum analysis of the final dataset and cosmological implications
• A Line of Sight Approach to Cosmic Microwave Background Anisotropies
• Large Magellanic Cloud Cepheid Standards Provide a 1% Foundation for the Determination of the Hubble Constant and Stronger Evidence for Physics Beyond LambdaCDM
• Improved cosmological constraints from a joint analysis of the SDSS-II and SNLS supernova samples
• The Clustering of the SDSS DR7 Main Galaxy Sample I: A 4 per cent Distance Measure at z=0.15
• Cosmological Perturbation Theory in the Synchronous and Conformal Newtonian Gauges
• Cosmological Perturbation Theory in the Synchronous vs. Conformal Newtonian Gauge
• Small-Scale Challenges to the $\Lambda$CDM Paradigm
• The DESI Experiment Part I: Science,Targeting, and Survey Design
• Tensions between the Early and the Late Universe
• H0LiCOW XIII. A 2.4% measurement of $H_0$ from lensed quasars: $5.3\sigma$ tension between early and late-Universe probes
• Early Dark Energy Can Resolve The Hubble Tension
• Cosmology and Fundamental Physics with the Euclid Satellite
• The imprints of primordial non-gaussianities on large-scale structure: scale dependent bias and abundance of virialized objects
• Conservative Constraints on Early Cosmology: an illustration of the Monte Python cosmological parameter inference code
• Probing Dark Energy with Baryonic Acoustic Oscillations from Future Large Galaxy Redshift Surveys
• Cosmological implications of baryon acoustic oscillation (BAO) measurements
• The trouble with $H_0$
• A 2% Distance to z=0.35 by Reconstructing Baryon Acoustic Oscillations - I : Methods and Application to the Sloan Digital Sky Survey
• The Hubble Hunter's Guide
• Probing dark energy using baryonic oscillations in the galaxy power spectrum as a cosmological ruler
• The Cosmic Linear Anisotropy Solving System (CLASS) I: Overview
• Improving Cosmological Distance Measurements by Reconstruction of the Baryon Acoustic Peak
• The Cosmological Analysis of the SDSS/BOSS data from the Effective Field Theory of Large-Scale Structure
• On the Robustness of the Acoustic Scale in the Low-Redshift Clustering of Matter
• Cosmological Parameters from the BOSS Galaxy Power Spectrum
• The effect of primordial non-Gaussianity on halo bias
• Measuring the cosmological constant with redshift surveys
• The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: Anisotropic galaxy clustering in Fourier-space
• 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
• Oscillating scalar fields and the Hubble tension: a resolution with novel signatures
• The Neutrino Puzzle: Anomalies, Interactions, and Cosmological Tensions
• Early Dark Energy Does Not Restore Cosmological Concordance
• The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: mock galaxy catalogues for the BOSS Final Data Release
• Cosmology with Phase 1 of the Square Kilometre Array; Red Book 2018: Technical specifications and performance forecasts
• Constraining Dark Matter-Baryon Scattering with Linear Cosmology
• Linear Redshift Distortions: A Review
• Memory of Initial Conditions in Gravitational Clustering
• The WiggleZ Dark Energy Survey: Final data release and cosmological results
• The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: Observational systematics and baryon acoustic oscillations in the correlation function
• The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: Baryon Acoustic Oscillations in Fourier-space
• Acoustic Dark Energy: Potential Conversion of the Hubble Tension
• Constraining Early Dark Energy with Large-Scale Structure
• CMB Observables and Their Cosmological Implications
• Baryon acoustic oscillations from the cross-correlation of Ly$\alpha$ absorption and quasars in eBOSS DR14
• Elucidating $\Lambda$CDM: Impact of Baryon Acoustic Oscillation Measurements on the Hubble Constant Discrepancy
• Baryon acoustic oscillations at z = 2.34 from the correlations of Ly$\alpha$ absorption in eBOSS DR14
• Sounds Discordant: Classical Distance Ladder & $\Lambda$CDM -based Determinations of the Cosmological Sound Horizon
• The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: Measuring D_A and H at z=0.57 from the Baryon Acoustic Peak in the Data Release 9 Spectroscopic Galaxy Sample
• Sterile neutrinos in cosmology
• The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: RSD measurement from the LOS-dependent power spectrum of DR12 BOSS galaxies
• Measuring D_A and H at z=0.35 from the SDSS DR7 LRGs using baryon acoustic oscillations
• The implications of an extended dark energy cosmology with massive neutrinos for cosmological tensions
• The BAO+BBN take on the Hubble tension
• A Measurement of the Quadrupole Power Spectrum in the Clustering of the 2dF QSO Survey
• Mock galaxy catalogs using the quick particle mesh method
• Early dark energy is not excluded by current large-scale structure data
• Analytic approach to the polarization of the cosmic microwave background in flat and open universes
• The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: BAO measurement from the LOS-dependent power spectrum of DR12 BOSS galaxies
• Constraints on Dark Matter Microphysics from the Milky Way Satellite Population
• The Damping Tail of CMB Anisotropies
• Non-linear structure formation and the acoustic scale
• The clustering of the SDSS-IV extended Baryon Oscillation Spectroscopic Survey DR14 quasar sample: structure growth rate measurement from the anisotropic quasar power spectrum in the redshift range $0.8<z<2.2$
• A Critical Assessment of CMB Limits on Dark Matter-Baryon Scattering: New Treatment of the Relative Bulk Velocity
• Gaussian covariance matrices for anisotropic galaxy clustering measurements
• Early dark energy resolution to the Hubble tension in light of weak lensing surveys and lensing anomalies
• High-precision predictions for the acoustic scale in the non-linear regime
• Thermal Friction as a Solution to the Hubble Tension
• Beyond the plane-parallel and Newtonian approach: Wide-angle redshift distortions and convergence in general relativity
• Calibrating the cosmic distance scale ladder: the role of the sound horizon scale and the local expansion rate as distance anchors
• Gravity in the Era of Equality: Towards solutions to the Hubble problem without fine-tuned initial conditions
• Searching for Light Relics with Large-Scale Structure
• Improving measurements of H(z) and Da(z) by analyzing clustering anisotropies
• The Galaxy Power Spectrum and Bispectrum in Redshift Space
• Rapid modelling of the redshift-space power spectrum multipoles for a masked density field
• The length of the low-redshift standard ruler
• Fitting Methods for Baryon Acoustic Oscillations in the Lyman-α Forest Fluctuations in BOSS Data Release 9
• The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: theoretical systematics and Baryon Acoustic Oscillations in the galaxy correlation function
• Modeling the reconstructed BAO in Fourier space
• A Two-Fluid Approximation for Calculating the Cosmic Microwave Background Anisotropies
• Phases of New Physics in the BAO Spectrum
• First Constraint on the Neutrino-Induced Phase Shift in the BAO Spectrum
• A User's Guide to Extracting Cosmological Information from Line-Intensity Maps
• The Impact of the Fiducial Cosmology Assumption on BAO Cosmological Parameter Inference
• Galaxy redshift-space bispectrum: the Importance of Being Anisotropic
• Primordial Features from Linear to Nonlinear Scales
• Dark Neutrino interactions phase out the Hubble tension
• Modeling the large-scale redshift-space 3-point correlation function of galaxies
• The Cosmic Expansion History from Line-Intensity Mapping
• Beware of commonly used approximations I: errors in forecasts
• Beware of commonly used approximations II: estimating systematic biases in the best-fit parameters
• The Impact of Wrong Assumptions in BAO Reconstruction
• Large Covariance Matrices: Accurate Models Without Mocks
• Three-point phase correlations: A new measure of non-linear large-scale structure
• Barry and the BAO Model Comparison
• Dark neutrino interactions make gravitational waves blue
• Blind Observers of the Sky
• Optimization of spectroscopic surveys for testing non-Gaussianity
• Probing $\Lambda$CDM cosmology with the Evolutionary Map of the Universe survey
• Constraining the growth rate of structure with phase correlations

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• Chameleon dark energy can resolve the Hubble tension
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• Clustering and Halo Abundances in Early Dark Energy Cosmological Models
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• Cosmology Intertwined: A Review of the Particle Physics, Astrophysics, and Cosmology Associated with the Cosmological Tensions and Anomalies
• Model-independent versus model-dependent interpretation of the SDSS-III BOSS power spectrum: Bridging the divide
• Confronting interacting dark radiation scenarios with cosmological data
• Measuring the sound horizon and absolute magnitude of SNIa by maximizing the consistency between low-redshift data sets
• Do you smell something decaying? Updated linear constraints on decaying dark matter scenarios
• Sources of $H_0$-tensions in dark energy scenarios
• A model-independent reconstruction of dark sector interactions
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• ${\Lambda }_{\mathrm{s}}$CDM cosmology: Alleviating major cosmological tensions by predicting standard neutrino properties
• TDCOSMO VI: Distance Measurements in Time-delay Cosmography under the Mass-sheet transformation
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• Compressed baryon acoustic oscillation analysis is robust to modified-gravity models
• Towards alleviating the $H_0$ and $S_8$ tensions with Early Dark Energy - Dark Matter drag
• Hubble distancing: Focusing on distance measurements in cosmology
• The Phase of the BAO on Observable Scales
• Possible Resolution of the Hubble Tension with Weyl Invariant Gravity
• Abundance and properties of dark radiation from the cosmic microwave background
• Self-interacting neutrinos, the Hubble parameter tension, and the Cosmic Microwave Background
• Using peculiar velocity surveys to constrain neutrino masses
• Is there a dynamical tendency in H0 with late time measurements?
• Joint 21-cm and CMB Forecasts for Constraining Self-Interacting Massive Neutrinos
• Dark Matter-Radiation Scattering Enhances CMB Phase Shift through Dark Matter-loading
• Catalog-level blinding on the bispectrum for DESI-like galaxy surveys
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• The BAO scale -- how standard is the standard ruler?