Robustness of $H_0$ determination at intermediate redshifts

Abstract

The most recent Hubble constant ($H_0)$ estimates from local methods (z << 1), $H_0=73.8\pm 2.4$ km s${}^{-1}$ Mpc${}^{-1}$, and the one from high redshifts $H_0=67.3\pm 1.2$ km s${}^{-1}$ Mpc${}^{-1}$, are discrepant at $2.4\sigma$ confidence level. Within this context, Lima & Cunha (LC) derived a new determination of $H_0$ using four cosmic probes at intermediate redshifts ($0.1<z<1.8$) based on the so-called flat $\Lambda$CDM model. They obtained $H_0=74.1\pm 2.2$ km s${}^{-1}$ Mpc${}^{-1}$, in full agreement with local measurements. In this Letter, we explore the robustness of the LC result searching for systematic errors and its dependence from the cosmological model used. We find that the $H_0$ value from this joint analysis is very weakly dependent on the underlying cosmological model, but the morphology adopted to infer the distance to galaxy clusters changes the result sizeably, being the main source of systematic errors. Therefore, a better understanding of the cluster morphology is paramount to transform this method into a powerful cross-check for $H_0$.

arXiv comment6 pages, 4 figures, version accepted for publication in MNRAS Letters

References in corpus (41)

• Planck 2013 results. XVI. Cosmological parameters
• Nine-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Parameter Results
• Detection of the Baryon Acoustic Peak in the Large-Scale Correlation Function of SDSS Luminous Red Galaxies
• A 3% Solution: Determination of the Hubble Constant with the Hubble Space Telescope and Wide Field Camera 3
• Constraints on the redshift dependence of the dark energy potential
• Cosmic Chronometers: Constraining the Equation of State of Dark Energy. I: H(z) Measurements
• Triaxial Modeling of Halo Density Profiles with High-resolution N-body Simulations
• Clustering of Luminous Red Galaxies IV: Baryon Acoustic Peak in the Line-of-Sight Direction and a Direct Measurement of H(z)
• Carnegie Hubble Program: A Mid-Infrared Calibration of the Hubble Constant
• Determination of the Cosmic Distance Scale from Sunyaev-Zel'dovich Effect and Chandra X-ray Measurements of High Redshift Galaxy Clusters
• H0 Revisited
• Toward a New Geometric Distance to the Active Galaxy NGC 4258. III. Final Results and the Hubble Constant
• $\nu \Lambda$CDM: Neutrinos help reconcile Planck with the Local Universe
• Determining the Cosmic Distance Scale from Interferometric Measurements of the Sunyaev-Zel'dovich Effect
• Measuring the Three-Dimensional Structure of Galaxy Clusters. I. Application to a Sample of 25 Clusters
• Evidence for a ~300 Mpc Scale Under-density in the Local Galaxy Distribution
• Cosmic variance and the measurement of the local Hubble parameter
• New constraints on Coupled Dark Energy from Planck
• The Kormendy relation of massive elliptical galaxies at z~1.5. Evidence for size evolution ?
• Testing the Distance-Duality Relation with Galaxy Clusters and Type Ia Supernovae
• Planck Data Reconsidered
• Median statistics and the Hubble constant
• The Three-Dimensional Shapes of Galaxy Clusters
• Evidence for a Lower Value for $H_0$ from Cosmic Chronometers Data?
• Cosmic Distance Duality Relation and the Shape of Galaxy Clusters
• Morphology of Galaxy Clusters: A Cosmological Model-Independent Test of the Cosmic Distance-Duality Relation
• Cosmic variance of the local Hubble flow in large-scale cosmological simulations
• Probing the Cosmic Distance Duality Relation with the Sunyaev-Zeldovich Effect, X-rays Observations and Supernovae Ia
• Unveiling the three-dimensional structure of galaxy clusters: resolving the discrepancy between X-ray and lensing masses
• Dark Energy Constraints after Planck
• Measuring the Three-Dimensional Structure of Galaxy Clusters. II. Are clusters of galaxies oblate or prolate?
• Early-type galaxies in the PEARS survey: Probing the stellar populations at moderate redshift
• The luminosity of supernovae of type Ia from TRGB distances and the value of H_0
• Can Old Galaxies at High Redshifts and Baryon Acoustic Oscillations Constrain H_0?
• Constraining $H_0$ from Sunyaev-Zel'dovich effect, Galaxy Clusters X-ray data, and Baryon Oscillations
• The Distance to Clusters: Correcting for Asphericity
• Galaxy Cluster Shapes and Systematic Errors in H0 Measured by the Sunyaev-Zel'dovich Effect
• Confronting the concordance model of cosmology with Planck data
• A 3% Determination of $H_0$ at Intermediate Redshifts
• Constraining H0 in General Dark Energy Models from Sunyaev-Zeldovich/X-ray Technique and Complementary Probes
• Constraining H0 from Lyman-alpha Forest and Baryon Acoustic Oscillations

Cited by in corpus (7)

• $H_0$ from cosmic chronometers and Type Ia supernovae, with Gaussian Processes and the novel Weighted Polynomial Regression method
• Determining $H_0$ with the latest HII galaxy measurements
• A low Hubble Constant from galaxy distribution observations
• Unveiling the Hubble Constant through Galaxy Cluster Gas Mass Fractions
• Determining $H_0$ using a model-independent method
• A More Accurate and Competitive Estimative of $H_0$ in Intermediate Redshifts
• The Hubble constant from galaxy cluster scaling-relation and SNe Ia observations: a consistency test