No Evidence for Dark Energy Dynamics from a Global Analysis of Cosmological Data

Abstract

We use a variant of principal component analysis to investigate the possible temporal evolution of the dark energy equation of state, w(z). We constrain w(z) in multiple redshift bins, utilizing the most recent data from Type Ia supernovae, the cosmic microwave background, baryon acoustic oscillations, the integrated Sachs-Wolfe effect, galaxy clustering, and weak lensing data. Unlike other recent analyses, we find no significant evidence for evolving dark energy; the data remains completely consistent with a cosmological constant. We also study the extent to which the time-evolution of the equation of state would be constrained by a combination of current- and future-generation surveys, such as Planck and the Joint Dark Energy Mission.

6 pages, 5 figures

References in corpus (24)

• Dynamics of dark energy
• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Likelihoods and Parameters from the WMAP data
• Improved Cosmological Constraints from New, Old and Combined Supernova Datasets
• Improved Dark Energy Constraints from ~100 New CfA Supernova Type Ia Light Curves
• A Redetermination of the Hubble Constant with the Hubble Space Telescope from a Differential Distance Ladder
• CfA3: 185 Type Ia Supernova Light Curves from the CfA
• A Parameterized Post-Friedmann Framework for Modified Gravity
• Correlation of CMB with large-scale structure: I. ISW Tomography and Cosmological Implications
• COSMOS: 3D weak lensing and the growth of structure
• Crossing the Phantom Divide with Parameterized Post-Friedmann Dark Energy
• The Scale Dependence of Halo and Galaxy Bias: Effects in Real Space
• Correlation of CMB with large-scale structure: II. Weak lensing
• The acceleration of the universe and the physics behind it
• Parametrized Post-Friedmann Signatures of Acceleration in the CMB
• A combined analysis of 3D Weak Lensing, Lyman-alpha forest and WMAP year three data
• Supernova Ia and Galaxy Cluster Gas Mass Fraction Constraints on Dark Energy
• Testing Cosmology with Cosmic Sound Waves
• Lensing and Supernovae: Quantifying The Bias on the Dark Energy Equation of State
• Bayesian Evidence for a Cosmological Constant using new High-Redshift Supernovae Data
• Narrowing Constraints with Type Ia Supernovae: Converging on a Cosmological Constant
• Beyond Two Dark Energy Parameters
• Nonlinear corrections to the cosmological matter power spectrum and scale-dependent galaxy bias: implications for parameter estimation
• Weak lensing and dark energy: the impact of dark energy on nonlinear dark matter clustering
• High-resolution temporal constraints on the dynamics of dark energy

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• The Little Rip
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• Three thermodynamically-based parametrizations of the deceleration parameter
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• Does the entropy of the Universe tend to a maximum?
• Cosmic slowing down of acceleration for several dark energy parametrizations
• Can dark energy be expressed as a power series of the Hubble parameter?
• Reconstruction of the Dark Energy equation of state
• A model of interacting holographic dark energy at the Ricci's scale
• How clustering dark energy affects matter perturbations
• Observational constraints on a holographic, interacting dark energy model
• Interacting entropy-corrected new agegraphic dark energy in Brans-Dicke cosmology
• Testable dark energy predictions from current data
• Constraining Modified Gravity with Euclid
• Constraining the dark energy equation of state using Bayes theorem and the Kullback-Leibler divergence
• Growth of matter perturbations in clustered holographic dark energy cosmologies
• Can Holographic dark energy models fit the observational data?
• Model selection and constraints from Holographic dark energy scenarios
• Figures of merit for present and future dark energy probes
• New Constraints On The Dark Energy Equation of State
• MOG cosmology without dark matter and the cosmological constant
• On the $c^2$ term in the holographic formula for dark energy
• Scale-Dependent Growth from a Transition in Dark Energy Dynamics
• Probing Dark Energy Dynamics from Current and Future Cosmological Observations
• Probing the dynamical behavior of dark energy
• Estimated Age of the Universe in Fractional Cosmology
• Violation of the FRW consistency condition as a signature of backreaction
• Cosmological implications from the full shape of the large-scale power spectrum of the SDSS DR7 luminous red galaxies
• A Robust Distance Measurement and Dark Energy Constraints from the Spherically-Averaged Correlation Function of Sloan Digital Sky Survey Luminous Red Galaxies
• Reconstructing dark energy with model independent methods after DESI DR2 BAO
• Observational constraints on the oscillating dark energy cosmologies
• Backreaction and FRW consistency conditions
• Properties and uncertainties of scalar field models of dark energy with barotropic equation of state
• Seeking Evolution of Dark Energy
• Discrimination between Lambda-CDM, quintessence, and modified gravity models using wide area surveys
• The effect of different observational data on the constraints of cosmological parameters
• On the effect of the degeneracy between w_0 and w_a
• Improved cosmological constraints on the curvature and equation of state of dark energy
• The tension on the cosmological parameters from different observational data
• Uncorrelated estimates of the primordial power spectrum
• New parameterization for unified dark matter and dark energy
• Model-Independent Predictions for Smooth Cosmic Acceleration Scenarios
• Power-law entropy corrected new holographic scalar field models of dark energy with modified IR-cutoff
• $H(z)$ diagnostics on the nature of dark energy
• Figure of Merit and Different Combinations of Observational Data Sets
• Current cosmological constraints on the curvature, dark energy and modified gravity
• Stress testing the dark energy equation of state imprint on supernova data
• Observational constraint on dynamical evolution of dark energy
• Holographic dark energy at the Ricci scale
• Evaluating backreaction with the ellipsoidal collapse model
• Analysis of recent type Ia supernova data based on evolving dark energy models
• Constraints on Dark Energy from New Observations including Pan-STARRS
• New parameterizations of generalized Chaplygin gas model constrained at background and perturbation levels
• Gravitational energy as dark energy: Average observational quantities
• Quantum Vacuum Structure and Cosmology
• Influence of the correlation prior on reconstruction of the dark energy equation of state
• Observational constraints on thawing quintessence scalar field model
• Testing the effects from dark radiation
• Constraints of Dark Energy at High Redshift