Observational constraints in Delta Gravity: CMB and supernovas

Abstract

Delta Gravity is a gravitational model based on an extension of General Relativity given by a new symmetry called $\tilde{\delta }$. In this model, new matter fields are added to the original matter fields, motivated by the additional symmetry. We call them $\tilde{\delta }$ matter fields. This model predicts an accelerating Universe without the need to introduce a cosmological constant. In this work, we study the Delta Gravity prediction about the scalar CMB TT power spectrum using an analytical hydrodynamical approach. To fit the Planck satellite's data with the DG model, we used a Markov Chain Monte Carlo analysis. We also include a study about the compatibility between SNe-Ia and CMB observations in the Delta Gravity Context. Finally, we obtain the scalar CMB TT power spectrum and the fitted parameters needed to explain both SNe-Ia Data and CMB measurements. The results are in a reasonable agreement with both observations considering the analytical approximation. We also discuss if the Hubble Constant and the Accelerating Universe are in concordance with the observational evidence in the Delta Gravity context.

References in corpus (87)

• 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
• Planck 2013 results. XVI. Cosmological parameters
• Efficient Computation of CMB anisotropies in closed FRW models
• The Complete Light-curve Sample of Spectroscopically Confirmed Type Ia Supernovae from Pan-STARRS1 and Cosmological Constraints from The Combined Pantheon Sample
• Introducing the Illustris Project: Simulating the coevolution of dark and visible matter in the Universe
• A 2.4% Determination of the Local Value of the Hubble Constant
• A Line of Sight Approach to Cosmic Microwave Background Anisotropies
• Large Magellanic Cloud Cepheid Standards Provide a 1% Foundation for the Determination of the Hubble Constant and Stronger Evidence for Physics Beyond LambdaCDM
• Dark Energy and the Accelerating Universe
• Improved cosmological constraints from a joint analysis of the SDSS-II and SNLS supernova samples
• H0LiCOW XIII. A 2.4% measurement of $H_0$ from lensed quasars: $5.3\sigma$ tension between early and late-Universe probes
• Everything You Always Wanted To Know About The Cosmological Constant Problem (But Were Afraid To Ask)
• The Carnegie-Chicago Hubble Program. VIII. An Independent Determination of the Hubble Constant Based on the Tip of the Red Giant Branch
• The trouble with $H_0$
• The Hubble Hunter's Guide
• Planck evidence for a closed Universe and a possible crisis for cosmology
• New Parallaxes of Galactic Cepheids from Spatially Scanning the Hubble Space Telescope: Implications for the Hubble Constant
• Fixed points of quantum gravity
• Scaling relations for galaxy clusters in the Millennium-XXL simulation
• The Physics of Cosmic Acceleration
• H0LiCOW V. New COSMOGRAIL time delays of HE0435-1223: $H_0$ to 3.8% precision from strong lensing in a flat $\Lambda$CDM model
• Can interacting dark energy solve the $H_0$ tension?
• Calibration of the Tip of the Red Giant Branch (TRGB)
• Two accurate time-delay distances from strong lensing: Implications for cosmology
• The Megamaser Cosmology Project. XIII. Combined Hubble constant constraints
• Reconciling Planck with the local value of $H_0$ in extended parameter space
• Tale of stable interacting dark energy, observational signatures, and the $H_0$ tension
• H0 Revisited
• Dark Energy Survey Year 1 Results: A Precise H0 Measurement from DES Y1, BAO, and D/H Data
• Evidence for massive neutrinos from CMB and lensing observations
• Acoustic Dark Energy: Potential Conversion of the Hubble Tension
• Universal structure of dark matter haloes over a mass range of 20 orders of magnitude
• Sounds Discordant: Classical Distance Ladder & $\Lambda$CDM -based Determinations of the Cosmological Sound Horizon
• Quantifying discordance in the 2015 Planck CMB spectrum
• Evidence for anisotropy of cosmic acceleration
• The implications of an extended dark energy cosmology with massive neutrinos for cosmological tensions
• Constraining Dark Energy Dynamics in Extended Parameter Space
• A non-perturbative Lorentzian path integral for gravity
• An overmassive Dark Halo around an Ultra-diffuse Galaxy in the Virgo Cluster
• Can the $H_0$ tension be resolved in extensions to $\Lambda$CDM cosmology?
• Testing the Interaction between Dark Energy and Dark Matter with Planck Data
• New constraints on Coupled Dark Energy from Planck
• Absolute-Magnitude Distributions of Supernovae
• Planck Data Reconsidered
• Integral Solution for the Microwave Background Anisotropies in Non-fl at Universes
• A blinded determination of $H_0$ from low-redshift Type Ia supernovae, calibrated by Cepheid variables
• Model independent $H(z)$ reconstruction using the cosmic inverse distance ladder
• Planck Constraints on Holographic Dark Energy
• Novel approach towards the large-scale stable Interacting Dark-Energy models and their Astronomical Bounds
• Insensitivity of The Distance Ladder Hubble Constant Determination to Cepheid Calibration Modeling Choices
• Determining $H_0$ with Bayesian hyper-parameters
• Search for sterile neutrinos in holographic dark energy cosmology: Reconciling Planck observation with the local measurement of the Hubble constant
• How the Dark Energy Can Reconcile \textit{Planck} with Local Determination of the Hubble Constant
• The impact of the cosmic variance on $H_0$ on cosmological analyses
• Lecture Notes in Cosmology
• Weighing neutrinos in the scenario of vacuum energy interacting with cold dark matter: application of the parameterized post-Friedmann approach
• Connecting early and late epochs by f(z)CDM cosmography
• CMB-slow, or How to Estimate Cosmological Parameters by Hand
• A search for sterile neutrinos with the latest cosmological observations
• The $H_0$ and ${\sigma }_8$ tensions and the scale invariant spectrum
• Beryllium in turnoff stars of NGC6397: early Galaxy spallation, cosmochronology and cluster formation
• Nonlocal Cosmology II --- Cosmic acceleration without fine tuning or dark energy
• Origins of the Isospin Violation of Dark Matter Interactions
• Is the $H_0$ tension suggesting a 4th neutrino's generation?
• Neutrinos and dark energy after Planck and BICEP2: data consistency tests and cosmological parameter constraints
• Search for sterile neutrinos in a universe of vacuum energy interacting with cold dark matter
• Constraints on the CMB temperature redshift dependence from SZ and distance measurements
• On the local variation of the Hubble constant
• The Mid-Infrared Tully-Fisher Relation: Calibration of the SNIa Scale and Ho
• Measuring growth index in a universe with massive neutrinos: A revisit of the general relativity test with the latest observations
• Do joint CMB and HST data support a scale invariant spectrum?
• Searching for sterile neutrinos in dynamical dark energy cosmologies
• Bayesian evidence for $\alpha$-attractor dark energy models
• Constraints on inflation revisited: An analysis including the latest local measurement of the Hubble constant
• A comment on power-law inflation with a dark radiation component
• Measuring the redshift dependence of the CMB monopole temperature with PLANCK data
• Dark energy and dark matter unification from dynamical space time: observational constraints and cosmological implications
• Constraining light sterile neutrino mass with the BICEP2/Keck Array 2014 B-mode polarization data
• Coupled vector dark energy
• Semiclassical Gauge Theories
• Delta-gravity and Dark Energy
• Variable Selection for Modeling the Absolute Magnitude at Maximum of Type Ia Supernovae
• Cosmology in Delta-Gravity
• An Accelerating Universe without Lambda: Delta~Gravity Using Monte Carlo
• Influence of the correlation prior on reconstruction of the dark energy equation of state

Cited by in corpus (6)

• Observational constraints on Myrzakulov gravity
• Dynamic and polarimetric VLBI imaging with a multiscalar approach
• Hubble tension and matter inhomogeneities: a theoretical perspective
• Prospects of using closure traces directly for imaging in Very Long Baseline Interferometry
• Pytearcat: PYthon TEnsor AlgebRa calCulATor
• Multiobjective optimization for scattering mitigation and scattering screen reconstruction in VLBI observations of the Galactic Center