No evidence for dynamical dark energy in two models

Abstract

To investigate whether the dark energy evolves over time, we propose two null tests and constrain them using the data combination of cosmic microwave background radiation, baryonic acoustic oscillations, Type Ia supernovae, Planck-2015 lensing and cosmic chronometers. We find that, for these two models, there is no evidence of the dynamical dark energy at the $1.2\sigma$ confidence level. Interestingly, both models could slightly alleviate (i) the current Hubble constant ($H_0$) tension between the global fitting derivation by the Planck collaboration and the local observation by Riess {\it et al.}; (ii) the root-mean-square density fluctuations (${\sigma }_8$) tension between the Planck-2015 data and several low-redshift large scale structure probes.

arXiv comment11 pages, 6 figures. Comments welcome

References in corpus (64)

• Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
• Planck 2015 results. XIII. Cosmological parameters
• A Large Mass Hierarchy from a Small Extra Dimension
• An Alternative to Compactification
• Planck 2013 results. XVI. Cosmological parameters
• Efficient Computation of CMB anisotropies in closed FRW models
• Unified cosmic history in modified gravity: from F(R) theory to Lorentz non-invariant models
• 4D Gravity on a Brane in 5D Minkowski Space
• A Phantom Menace? Cosmological consequences of a dark energy component with super-negative equation of state
• The 6dF Galaxy Survey: Baryon Acoustic Oscillations and the Local Hubble Constant
• An alternative to quintessence
• Nine-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Final Maps and Results
• Phantom Energy and Cosmic Doomsday
• Modified gravity with negative and positive powers of the curvature: unification of the inflation and of the cosmic acceleration
• Generalized Chaplygin Gas, Accelerated Expansion and Dark Energy-Matter Unification
• A 2.4% Determination of the Local Value of the Hubble Constant
• Improved cosmological constraints from a joint analysis of the SDSS-II and SNLS supernova samples
• Cosmological Perturbation Theory in the Synchronous vs. Conformal Newtonian Gauge
• Cosmological Perturbation Theory in the Synchronous and Conformal Newtonian Gauges
• Observational Probes of Cosmic Acceleration
• A 6% measurement of the Hubble parameter at $z\sim 0.45$: direct evidence of the epoch of cosmic re-acceleration
• Quintessence and the Rest of the World
• KiDS-450: Cosmological parameter constraints from tomographic weak gravitational lensing
• Exploring the Expanding Universe and Dark Energy using the Statefinder Diagnostic
• Reconstructing Dark Energy
• Cosmological perturbations
• Constraining dark energy with SNe Ia and large-scale structure
• Efficient sampling of fast and slow cosmological parameters
• Dynamical dark energy in light of the latest observations
• Probing the dark energy: methods and strategies
• Prospects for probing the dark energy via supernova distance measurements
• Can interacting dark energy solve the $H_0$ tension?
• Planck intermediate results. XLVI. Reduction of large-scale systematic effects in HFI polarization maps and estimation of the reionization optical depth
• Reconstructing the Cosmic Equation of State from Supernova distances
• Uncorrelated Estimates of Dark Energy Evolution
• Cosmological reconstruction of realistic modified F(R) gravities
• Future Supernovae observations as a probe of dark energy
• A Lower Growth Rate from Recent Redshift Space Distortion Measurements than Expected from Planck
• Can vacuum decay in our Universe?
• A Model-Independent Determination of the Expansion and Acceleration Rates of the Universe as a Function of Redshift and Constraints on Dark Energy
• Extended Horava gravity and Einstein-aether theory
• Constraining Dark Energy Dynamics in Extended Parameter Space
• Cosmological model with viscosity media (dark fluid) described by an effective equation of state
• The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: Baryon Acoustic Oscillations in the correlation function of LOWZ and CMASS galaxies in Data Release 12
• Thermodynamics of Decaying Vacuum Cosmologies
• Tension between the power spectrum of density perturbations measured on large and small scales
• Bulk viscous cosmology: statefinder and entropy
• Examining the evidence for dynamical dark energy
• Feasibility of Reconstructing the Quintessential Potential Using SNIa Data
• Constraining early and interacting dark energy with gravitational wave standard sirens: the potential of the eLISA mission
• Friedmann cosmology with bulk viscosity: a concrete model for dark energy
• Modified equation of state, scalar field, and bulk viscosity in Friedmann universe
• Friedmann cosmology with a generalized equation of state and bulk viscosity
• A Two-Field Quintessence Model
• Dynamical dark energy: scalar fields and running vacuum
• WMAP5 constraints on the unified model of dark energy and dark matter
• Can the Universe escape eternal acceleration?
• Quintessential Adjustment of the Cosmological Constant
• Improved constraints on the dark energy equation of state using Gaussian processes
• Priors on the effective Dark Energy equation of state in scalar-tensor theories
• Reduction of Cosmological Data for the Detection of Time-varying Dark Energy Density
• Probing dynamics of dark energy with latest observations
• A new pressure-parametrization unified dark fluid model
• Determining $H_0$ with the latest HII galaxy measurements

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• A Grover-search Based Quantum Learning Scheme for Classification
• Testing an oscillatory behavior of dark energy
• Dark Energy Constraints in light of Pantheon SNe Ia, BAO, Cosmic Chronometers and CMB Polarization and Lensing Data
• A new parametrization for dark energy density and future deceleration
• Bending of light in the Universe filled with quintessential dark energy
• Beyond Two Parameters: Revisiting Dark Energy with the Latest Cosmic Probes
• Revisiting CPL with sign-switching density: To cross or not to cross the NECB
• Cosmology with Type II Supernovae
• Assessing the potential of cluster edges as a standard ruler