The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: combining correlated Gaussian posterior distributions

Abstract

The cosmological information contained in anisotropic galaxy clustering measurements can often be compressed into a small number of parameters whose posterior distribution is well described by a Gaussian. We present a general methodology to combine these estimates into a single set of consensus constraints that encode the total information of the individual measurements, taking into account the full covariance between the different methods. We illustrate this technique by applying it to combine the results obtained from different clustering analyses, including measurements of the signature of baryon acoustic oscillations (BAO) and redshift-space distortions (RSD), based on a set of mock catalogues of the final SDSS-III Baryon Oscillation Spectroscopic Survey (BOSS). Our results show that the region of the parameter space allowed by the consensus constraints is smaller than that of the individual methods, highlighting the importance of performing multiple analyses on galaxy surveys even when the measurements are highly correlated. This paper is part of a set that analyses the final galaxy clustering dataset from BOSS. The methodology presented here is used in Alam et al. (2016) to produce the final cosmological constraints from BOSS.

arXiv comment9 pages, 8 figures

References in corpus (37)

• Planck 2013 results. XVI. Cosmological parameters
• Detection of the Baryon Acoustic Peak in the Large-Scale Correlation Function of SDSS Luminous Red Galaxies
• The 2dF Galaxy Redshift Survey: Spectra and redshifts
• SDSS-III: Massive Spectroscopic Surveys of the Distant Universe, the Milky Way Galaxy, and Extra-Solar Planetary Systems
• The 2dF Galaxy Redshift Survey: Power-spectrum analysis of the final dataset and cosmological implications
• The Baryon Oscillation Spectroscopic Survey of SDSS-III
• The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: Baryon Acoustic Oscillations in the Data Release 10 and 11 galaxy samples
• The Clustering of the SDSS DR7 Main Galaxy Sample I: A 4 per cent Distance Measure at z=0.15
• The 3D power spectrum of galaxies from the SDSS
• The 6dF Galaxy Survey: Final Redshift Release (DR3) and Southern Large-Scale Structures
• MultiDark simulations: the story of dark matter halo concentrations and density profiles
• Euclid Definition Study Report
• The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: Baryon Acoustic Oscillations in the Data Release 9 Spectroscopic Galaxy Sample
• The SDSS-IV extended Baryon Oscillation Spectroscopic Survey: Overview and Early Data
• A 2% Distance to z=0.35 by Reconstructing Baryon Acoustic Oscillations - I : Methods and Application to the Sloan Digital Sky Survey
• Redshift-Space Distortions, Pairwise Velocities and Nonlinearities
• The WiggleZ Dark Energy Survey: Survey Design and First Data Release
• Improving Cosmological Distance Measurements by Reconstruction of the Baryon Acoustic Peak
• Baryon Acoustic Oscillations in 2D: Modeling Redshift-space Power Spectrum from Perturbation Theory
• The DESI Experiment, a whitepaper for Snowmass 2013
• The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: Testing gravity with redshift-space distortions using the power spectrum multipoles
• The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: mock galaxy catalogues for the BOSS Final Data Release
• The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: Observational systematics and baryon acoustic oscillations in the correlation function
• Towards an accurate model of the redshift space clustering of halos in the quasilinear regime
• Convolution Lagrangian perturbation theory for biased tracers
• 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
• Fast Estimators for Redshift-Space Clustering
• The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: Modeling the clustering and halo occupation distribution of BOSS-CMASS galaxies in the Final Data Release
• Modelling Baryon Acoustic Oscillations with Perturbation Theory and Stochastic Halo Biasing
• The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: Baryon Acoustic Oscillations in the correlation function of LOWZ and CMASS galaxies in Data Release 12
• Measuring line-of-sight dependent Fourier-space clustering using FFTs
• A 2% Distance to z=0.35 by Reconstructing Baryon Acoustic Oscillations - II: Fitting Techniques
• Constraining Anisotropic Baryon Oscillations
• Cosmological Structure Formation with Augmented Lagrangian Perturbation Theory
• An analytic model for redshift-space distortions
• Improving measurements of H(z) and Da(z) by analyzing clustering anisotropies
• Modeling the reconstructed BAO in Fourier space

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• DES Y1 results: Splitting growth and geometry to test $\Lambda$CDM
• Model-independent curvature determination with 21cm intensity mapping experiments
• Using angular pair upweighting to improve 3D clustering measurements
• Nonlinear reconstruction of redshift space distortions
• Barry and the BAO Model Comparison
• Cosmological measurements from void-galaxy and galaxy-galaxy clustering in the Sloan Digital Sky Survey
• Evolution mapping: a new approach to describe matter clustering in the non-linear regime
• Using the Mark Weighted Correlation Functions to Improve the Constraints on Cosmological Parameters
• Analytic Calculation of Covariance between Cosmological Parameters from Correlated Data Sets, with an Application to SPTpol
• Improving Constraint on ${\Omega }_m$ from SDSS Using Marked Correlation Functions
• Improving SDSS cosmological constraints through $\beta$-skeleton weighted correlation functions
• Updated neutrino mass constraints from galaxy clustering and CMB lensing-galaxy cross-correlation measurements
• Baryon acoustic oscillations from a joint analysis of the large-scale clustering in Fourier and configuration space
• On the tomographic cluster clustering as a cosmological probe
• How to optimally combine pre-reconstruction full shape and post-reconstruction BAO signals
• Growth rate measurements from a joint analysis of the large-scale galaxy clustering in Fourier and configuration space
• Cosmological constraints from the density gradient weighted correlation function
• Aletheia: Emulating the non-linear matter power spectrum in the context of evolution mapping
• Enhancing Cosmological Constraints by Two-dimensional $\beta$-cosmic-web Weighted Angular Correlation Functions