Cosmology with the EFTofLSS and BOSS: dark energy constraints and a note on priors

Abstract

We analyse the BOSS DR12 galaxy power spectrum data jointly with BAO data for three models of dark energy. We use recent measurements using a windowless estimator, and an independent and fast pipeline based on EFTofLSS implemented via the FAST-PT algorithm to compute the redshift-space loop corrections. We accelerate our analysis by using the BACCO linear emulator instead of a Boltzmann solver. We perform two sets of analyses: one with $3\sigma$ Planck priors on $A_s$ and $n_s$, and another that is CMB-free, without such priors. Firstly, we study $\Lambda$CDM, reproducing previous results obtained with the same estimator. We find a low value of $A_s$ in the CMB-free case, in agreement with many previous full-shape analyses of the BOSS data. We then study $w$CDM, finding a lower value of the amplitude in the CMB-free run, coupled with a preference for phantom dark energy with $w=-1.17_{-0.11}^{+0.12}$, again in broad agreement with previous results. Finally, we investigate the dark scattering model, which we label $wA$CDM. In the CMB-free analysis, we find a large degeneracy between the interaction strength $A$ and the amplitude $A_s$, hampering measurements of those parameters. On the contrary, in our run with a CMB prior, we are able to constrain the dark energy parameters to be $w=-0.972_{-0.029}^{+0.036}$ and $A=3.9_{-3.7}^{+3.2}$, which show a 1$\sigma$ hint of interacting dark energy. This is the first measurement of this parameter and demonstrates the ability of this model to alleviate the ${\sigma }_8$ tension. Our analysis can be used as a guide for any model with scale-independent growth. Finally, we study the dependence of the results on the priors of the nuisance parameters and find these priors to be informative, with their broadening creating shifts in the contours. We argue for an in depth study of this issue, which can affect current and forthcoming analyses of LSS data.

34+17 pages, 18 figures. Baseline analyses and results in Section 3, discussion on priors in appendix A. V2: More detailed comparisons with previous work and additional references. Matches version accepted for publication in JCAP

References in corpus (31)

• Dynamics of dark energy
• The Clustering of the SDSS DR7 Main Galaxy Sample I: A 4 per cent Distance Measure at z=0.15
• The DESI Experiment Part I: Science,Targeting, and Survey Design
• Wide-Field InfrarRed Survey Telescope-Astrophysics Focused Telescope Assets WFIRST-AFTA 2015 Report
• The Effective Field Theory of Cosmological Large Scale Structures
• The effects of He I 10830 on helium abundance determinations
• Clustering of dark matter tracers: generalizing bias for the coming era of precision LSS
• The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: Anisotropic galaxy clustering in Fourier-space
• The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: Baryon acoustic oscillations with Lyman-$\alpha$ forests
• Modelling baryonic feedback for survey cosmology
• Interacting Dark Sector and Precision Cosmology
• Constraining Interactions in Cosmology's Dark Sector
• The Parameterized Post-Friedmannian Framework for Interacting Dark Energy Theories
• Do we have any hope of detecting scattering between dark energy and baryons through cosmology?
• Consistent lensing and clustering in a low-$S_8$ Universe with BOSS, DES Year 3, HSC Year 1 and KiDS-1000
• Precision analysis of the redshift-space galaxy bispectrum
• Cosmological Analysis of Three-Dimensional BOSS Galaxy Clustering and Planck CMB Lensing Cross Correlations via Lagrangian Perturbation Theory
• FAST-PT II: an algorithm to calculate convolution integrals of general tensor quantities in cosmological perturbation theory
• Scattering of Dark Matter and Dark Energy
• Consistency of effective field theory analyses of the BOSS power spectrum
• Full-Shape Galaxy Power Spectra and the Curvature Tension
• Cosmological direct detection of dark energy: non-linear structure formation signatures of dark energy scattering with visible matter
• Understanding the suppression of structure formation from dark matter$\unicode{x2013}$dark energy momentum coupling
• Constraints on modified gravity from the BOSS galaxy survey
• Simulating Momentum Exchange in the Dark Sector
• Dark Energy, the Swampland and the Equivalence Principle
• The Halo Bispectrum Multipoles in Redshift Space
• Two-scalar-field model for the interaction of dark energy and dark matter
• Interacting dark energy from the joint analysis of the power spectrum and bispectrum multipoles with the EFTofLSS
• Combined full shape analysis of BOSS galaxies and eBOSS quasars using an iterative emulator
• Interacting dark energy from redshift-space galaxy clustering

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