Cosmological measurements from void-galaxy and galaxy-galaxy clustering in the Sloan Digital Sky Survey

Abstract

We present the cosmological implications of measurements of void-galaxy and galaxy-galaxy clustering from the Sloan Digital Sky Survey (SDSS) Main Galaxy Sample (MGS), Baryon Oscillation Spectroscopic Survey (BOSS), and extended BOSS (eBOSS) luminous red galaxy catalogues from SDSS Data Release 7, 12, and 16, covering the redshift range $0.07<z<1.0$. We fit a standard $\Lambda$CDM cosmological model as well as various extensions including a constant dark energy equation of state not equal to $-1$, a time-varying dark energy equation of state, and these same models allowing for spatial curvature. Results on key parameters of these models are reported for void-galaxy and galaxy-galaxy clustering alone, both of these combined, and all these combined with measurements from the cosmic microwave background (CMB) and supernovae (SN). For the combination of void-galaxy and galaxy-galaxy clustering, we find tight constraints of ${\Omega }_{\mathrm{m}}=0.356\pm 0.024$ for a base $\Lambda$CDM cosmology, ${\Omega }_{\mathrm{m}}=0.391_{-0.021}^{+0.028},w=-1.50_{-0.28}^{+0.43}$ additionally allowing the dark energy equation of state $w$ to vary, and ${\Omega }_{\mathrm{m}}=0.331_{-0.094}^{+0.067},w=-1.41_{-0.31}^{+0.70},\mathrm{and}{\Omega }_{\mathrm{k}}=0.06_{-0.13}^{+0.18}$ further extending to non-flat models. The combined SDSS results from void-galaxy and galaxy-galaxy clustering in combination with CMB+SN provide a 30% improvement in parameter ${\Omega }_{\mathrm{m}}$ over CMB+SN for $\Lambda$CDM, a 5% improvement in parameter ${\Omega }_{\mathrm{m}}$ when $w$ is allowed to vary, and a 32% and 68% improvement in parameters ${\Omega }_{\mathrm{m}}$ and ${\Omega }_{\mathrm{k}}$ when allowing for spatial curvature.

11 pages, 9 figures. Accepted by MNRAS

References in corpus (9)

• 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
• The Cosmic Linear Anisotropy Solving System (CLASS) I: Overview
• ZOBOV: a parameter-free void-finding algorithm
• The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: measurement of the BAO and growth rate of structure of the luminous red galaxy sample from the anisotropic correlation function between redshifts 0.6 and 1
• The Clustering of the SDSS Main Galaxy Sample II: Mock galaxy catalogues and a measurement of the growth of structure from Redshift Space Distortions at $z=0.15$
• Beyond BAO: improving cosmological constraints from BOSS with measurement of the void-galaxy cross-correlation
• The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: combining correlated Gaussian posterior distributions
• Velocity profiles of matter and biased tracers around voids

Cited by in corpus (8)

• Euclid. I. Overview of the Euclid mission
• Lensing amplitude anomaly and varying electron mass alleviate the Hubble and $S_8$ tensions
• Constraining cosmological parameters using void statistics from the SDSS survey
• Cosmology with voids from the Nancy Grace Roman Space Telescope
• A spherical hydrodynamical model of cosmic voids in ΛCDM and beyond
• Mixing Bispectrum Multipoles Under Geometric Distortions
• The Gravitational Lensing Imprints of DES Y3 Superstructures on the CMB: A Matched Filtering Approach
• Cosmology with Cosmic Voids