The Local Perspective on the Hubble Tension: Local Structure Does Not Impact Measurement of the Hubble Constant

Abstract

We use the largest sample to date of spectroscopic SN Ia distances and redshifts to look for evidence in the Hubble diagram of large scale outflows caused by local voids suggested to exist at z<0.15. Our sample combines data from the Pantheon sample with the Foundation survey and the most recent release of lightcurves from the Carnegie Supernova Project to create a sample of 1295 SNe over a redshift range of 0.01<z<2.26. We make use of an inhomogeneous and isotropic Lemaitre-Tolman-Bondi metric to model a void in the SN Ia distance-redshift relation. We conclude that the SN luminosity distance-redshift relation is inconsistent at the 4-5 sigma confidence level with large local underdensities (|delta| > 20%, where the density contrast delta = Delta rho /rho) proposed in some galaxy count studies, and find no evidence of a change in the Hubble constant corresponding to a void with a sharp edge in the redshift range 0.023<z<0.15. With empirical precision of sigma_H_0 = 0.60%, we conclude that the distance ladder measurement is not affected by local density contrasts, in agreement with cosmic variance of sigma_H_0 = 0.42% predicted from simulations of large-scale structure. Given that uncertainty in the distance ladder value is sigma_H_0=2.2%, this does not affect the Hubble tension. We derive a 5 sigma constraint on local density contrasts on scales larger than 69 megaparsec h^-1 of delta < 27%. The presence of local structure does not appear to impede the possibility of measuring the Hubble constant to 1% precision.

16 pages, 6 figures, accepted by ApJ 3/10/19

References in corpus (8)

• Improved Distances to Type Ia Supernovae with Multicolor Light Curve Shapes: MLCS2k2
• Cosmological parameters from the comparison of peculiar velocities with predictions from the 2M++ density field
• Correcting Type Ia Supernova Distances for Selection Biases and Contamination in Photometrically Identified Samples
• Confronting Lemaitre-Tolman-Bondi models with Observational Cosmology
• The Carnegie Supernova Project I: Third Photometry Data Release of Low-Redshift Type Ia Supernovae and Other White Dwarf Explosions
• Sample variance in the local measurements of the Hubble constant
• On the local variation of the Hubble constant
• Cosmology with Peculiar Velocities: Observational Effects

Cited by in corpus (27)

• The Expansion of the Universe is Faster than Expected
• Seven hints that early-time new physics alone is not sufficient to solve the Hubble tension
• On the evolution of the Hubble constant with the SNe Ia Pantheon Sample and Baryon Acoustic Oscillations: a feasibility study for GRB-cosmology in 2030
• Analyzing the $H_0$ tension in $F(R)$ gravity models
• Gamma-Ray Bursts, Quasars, Baryonic Acoustic Oscillations, and Supernovae Ia: new statistical insights and cosmological constraints
• Late-time decaying dark matter: constraints and implications for the $H_0$-tension
• Combining pre- and post-recombination new physics to address cosmological tensions: case study with varying electron mass and sign-switching cosmological constant
• Cosmology Intertwined: A Review of the Particle Physics, Astrophysics, and Cosmology Associated with the Cosmological Tensions and Anomalies
• Sources of $H_0$-tensions in dark energy scenarios
• Effects of type Ia supernovae absolute magnitude priors on the Hubble constant value
• Local Hole revisited: evidence for bulk motions and self-consistent outflow
• The redshift dependence of the inferred $H_0$ in a local void solution to the Hubble tension
• Cosmological discordances III: more on measure properties, Large-Scale-Structure constraints, the Hubble constant and Planck
• Hydrodynamical structure formation in Milgromian cosmology
• Alleviating the Hubble-constant tension and the growth tension via a transition of absolute magnitude favored by the Pantheon+ sample
• Investigating dark energy by electromagnetic frequency shifts
• TDCOSMO VIII: A key test of systematics in the hierarchical method of time-delay cosmography
• The Hubble tension: Change in dark energy or a case for modified gravity?
• Mathematical Underpinnings of the Multi-Wavelength Structure of the TRGB
• Galaxy flows within 8,000 km/s from Numerical Action methods
• Eliminating the Hubble Tension in the Presence of the Interconnection between Dark Energy and Matter in the Modern Universe
• The Next Generation of Cosmological Measurements with Type Ia Supernovae
• Impact of our local environment on cosmological statistics
• Cosmologies in $f(R,{\mathcal{L}}_m)$ theory with non-minimal coupling between geometry and matter
• Large scale structures: from inflation to today: a brief report
• Sample Variance for Supernovae Distance Measurements and the Hubble tension
• Gamma-Ray Bursts, Supernovae Ia and Baryon Acoustic Oscillations: a binned cosmological analysis