Model independent calibration for sound horizon combining observations of supernovae and transversal BAO measurements

Abstract

The sound horizon is a key theoretical prediction of the cosmological model that depends on the speed of sound and the rate of expansion in the early universe, before matter and radiation decoupled. The standard ruler for low redshift calibration of baryon acoustic oscillations (BAOs) is a direct measurement that would exist even if the standard cosmological model and the standard assumptions of early physics did not. We propose a new model-independent method to calibrate sound horizon $r_s^h$ (relative standard ruler) by using the latest observations of SNe Ia and transversal BAO measurements. The final result reports $r_s^h=107.10_{-1.32}^{+1.36}$ $Mpc/h$ in the framework of the Pantheon dataset. This result changes to $r_s^h=105.63_{-1.31}^{+1.33}$ $Mpc/h$ when uses Pantheon+ dataset. Note that even without an estimate of dimensionless Hubble constant $h$, the combination of BAO and SNe Ia datasets already constrain the low-redshift standard ruler scale $r_s^h$ at the $\sim 1.26\%$ level. More importantly, it is interesting to find that most of the $r_s^h$ obtained at high redshifts have a larger value (9 out of 15 results are larger than the result obtained by combining all BAOs). This finding may give us a better understanding of the discordance between the data sets or Hubble tension or reveal new physics beyond the standard model.

6 pages, 4 figures, welcome to comment

References in corpus (52)

• Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
• Measurements of Omega and Lambda from 42 High-Redshift Supernovae
• Planck 2015 results. XIII. Cosmological parameters
• Nine-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Parameter Results
• The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: cosmological analysis of the DR12 galaxy sample
• The Complete Light-curve Sample of Spectroscopically Confirmed Type Ia Supernovae from Pan-STARRS1 and Cosmological Constraints from The Combined Pantheon Sample
• A Comprehensive Measurement of the Local Value of the Hubble Constant with 1 km/s/Mpc Uncertainty from the Hubble Space Telescope and the SH0ES Team
• Baryonic Features in the Matter Transfer Function
• Large Magellanic Cloud Cepheid Standards Provide a 1% Foundation for the Determination of the Hubble Constant and Stronger Evidence for Physics Beyond LambdaCDM
• The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: Cosmological Implications from two Decades of Spectroscopic Surveys at the Apache Point observatory
• The Pantheon+ Analysis: Cosmological Constraints
• Early Dark Energy Can Resolve The Hubble Tension
• The Pantheon+ Analysis: The Full Dataset and Light-Curve Release
• The trouble with $H_0$
• The Fourteenth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the extended Baryon Oscillation Spectroscopic Survey and from the second phase of the Apache Point Observatory Galactic Evolution Experiment
• Cosmology Intertwined II: The Hubble Constant Tension
• On the Hubble constant tension in the SNe Ia Pantheon sample
• Curvature tension: evidence for a closed universe
• Cosmological Constraints from Measurements of Type Ia Supernovae discovered during the first 1.5 years of the Pan-STARRS1 Survey
• Gaussian Process Cosmography
• $H_0$ from cosmic chronometers and Type Ia supernovae, with Gaussian Processes and the novel Weighted Polynomial Regression method
• Sounds Discordant: Classical Distance Ladder & $\Lambda$CDM -based Determinations of the Cosmological Sound Horizon
• First Cosmological Results using Type Ia Supernovae from the Dark Energy Survey: Measurement of the Hubble Constant
• Acoustic Signatures in the Cosmic Microwave Background
• Prospects for resolving the Hubble constant tension with standard sirens
• Nonparametric Dark Energy Reconstruction from Supernova Data
• Systematic Uncertainties Associated with the Cosmological Analysis of the First Pan-STARRS1 Type Ia Supernova Sample
• Nonparametric Reconstruction of the Dark Energy Equation of State
• Statistical 21-cm Signal Separation via Gaussian Process Regression Analysis
• Implications of a transition in the dark energy equation of state for the $H_0$ and ${\sigma }_8$ tensions
• Cosmological parameter analyses using transversal BAO data
• Quantifying the $S_8$ tension with the Redshift Space Distortion data set
• Surrogate model for an aligned-spin effective one body waveform model of binary neutron star inspirals using Gaussian process regression
• The length of the low-redshift standard ruler
• Standard rulers, candles, and clocks from the low-redshift Universe
• Baryon Acoustic Oscillations from the SDSS DR10 galaxies angular correlation function
• Model-independent test of the FLRW metric, the flatness of the Universe, and non-local measurement of $H_0{r}_{\mathrm{d}}$
• Model Independent Tests of Cosmic Growth vs Expansion
• How to use GP: Effects of the mean function and hyperparameter selection on Gaussian Process regression
• Model independent inference of the expansion history and implications for the growth of structure
• Measuring the transverse baryonic acoustic scale from the SDSS DR11 galaxies
• Cosmological model-independent constraints on spatial curvature from strong gravitational lensing and type Ia supernova observations
• Standardizing Type Ia Supernova Absolute Magnitudes Using Gaussian Process Data Regression
• Gaussian Process Regression for foreground removal in HI intensity mapping experiments
• Measuring the sound horizon and absolute magnitude of SNIa by maximizing the consistency between low-redshift data sets
• Revising the Hubble constant, spatial curvature and dark energy dynamics with the latest observations of quasars
• Neural Network Reconstruction of $H^{\prime }(z)$ and its application in Teleparallel Gravity
• Kernel Selection for Gaussian Process in Cosmology: with Approximate Bayesian Computation Rejection and Nested Sampling
• The Hubble-Lemaître constant and sound horizon from low-redshift probes
• A non-parametric consistency test of the $\Lambda$CDM model with Planck CMB data
• A Model-independent Method to Determine $H_0$ Using Time-Delay Lensing, Quasars and Type Ia Supernovae
• Baryon acoustic oscillations in thin redshift shells from BOSS DR12 and eBOSS DR16 galaxies

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