Updated observational constraints on $\varphi$CDM dynamical dark energy cosmological models

Abstract

We present updated observational constraints on the spatially flat $\varphi$CDM model, where dark energy is described by a minimally coupled scalar field $\varphi$ with an inverse power-law potential $V=V_0{\varphi }^{-\alpha }$. Using Planck 2018 CMB temperature, polarization (P18), and lensing power spectra (lensing), along with a compilation of non-CMB data including baryon acoustic oscillation, type Ia supernova, Hubble parameter, and growth rate measurements, we constrain $\varphi$CDM and $\varphi$CDM+$A_L$ models where $A_L$ is the CMB lensing consistency parameter. The scalar field parameter $\alpha$, which governs dark energy dynamics, is more tightly constrained by non-CMB data than by CMB data alone. For the full dataset, we obtain $\alpha =0.055\pm 0.041$ in the $\varphi$CDM model and $\alpha =0.095\pm 0.056$ in the $\varphi$CDM+$A_L$ model, mildly favoring evolving dark energy over a cosmological constant by $1.3\sigma$ and $1.7\sigma$. The Hubble constant is $H_0=67.55_{-0.46}^{+0.53}$ km s${}^{-1}$ Mpc${}^{-1}$ in the $\varphi$CDM model, consistent with median statistics and some local determinations, but in tension with other local determinations. The constraints for matter density and clustering amplitude (${\Omega }_m=0.3096\pm 0.0055$, ${\sigma }_8=0.8013_{-0.0067}^{+0.0077}$) of the flat $\varphi$CDM model statistically agree with $\Lambda$CDM model values. Allowing $A_L$ to vary reduces tensions between CMB and non-CMB data, although we find $A_L=1.105\pm 0.037$, $2.8\sigma$ higher than unity, consistent with the excess smoothing seen in Planck data. Model comparison using AIC and DIC indicates that the $\varphi$CDM model provides a fit comparable to $\Lambda$CDM, with the $\varphi$CDM+$A_L$ slightly preferred. Overall, while the $\Lambda$CDM model remains an excellent fit, current data leave open the possibility of mildly evolving quintessence-like dynamical dark energy.

arXiv comment22 pages, 6 figures, 4 tables. Accepted for publication in International Journal of Modern Physics D

References in corpus (53)

• The Cosmological Constant and Dark Energy
• Efficient Computation of CMB anisotropies in closed FRW models
• Cosmological parameters from CMB and other data: a Monte-Carlo approach
• Exploring the Expansion History of the Universe
• Accelerating Universes with Scaling Dark Matter
• 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
• Planck 2018 results. I. Overview and the cosmological legacy of Planck
• The Pantheon+ Analysis: Cosmological Constraints
• The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics
• CFHTLenS revisited: assessing concordance with Planck including astrophysical systematics
• Cosmic Microwave Weak lensing data as a test for the dark universe
• Median Statistics, H_0, and the Accelerating Universe
• Median statistics and the Hubble constant
• Exhaustive Study of Cosmic Microwave Background Anisotropies in Quintessential Scenarios
• Gauge-ready formulation of the cosmological kinetic theory in generalized gravity theories
• Cosmic microwave background anisotropies in the CDM model: a covariant and gauge-invariant approach
• Updated Cosmological Constraints in Extended Parameter Space with Planck PR4, DESI Baryon Acoustic Oscillations, and Supernovae: Dynamical Dark Energy, Neutrino Masses, Lensing Anomaly, and the Hubble Tension
• Quantifying tensions in cosmological parameters: Interpreting the DES evidence ratio
• Using non-DESI data to confirm and strengthen the DESI 2024 spatially-flat $w_0{w}_a$CDM cosmological parameterization result
• Using Pantheon and DES supernova, baryon acoustic oscillation, and Hubble parameter data to constrain the Hubble constant, dark energy dynamics, and spatial curvature
• Using quasar X-ray and UV flux measurements to constrain cosmological model parameters
• Hubble parameter measurement constraints on dark energy
• Observational constraints on the tilted spatially-flat and the untilted nonflat $\varphi$CDM dynamical dark energy inflation models
• Dynamical dark energy: scalar fields and running vacuum
• Quantifying the global parameter tensions between ACT, SPT and Planck
• Quantifying dimensionality: Bayesian cosmological model complexities
• Cosmology in Extended Parameter Space with DESI Data Release 2 Baryon Acoustic Oscillations: A 2$\sigma$+ Detection of Nonzero Neutrino Masses with an Update on Dynamical Dark Energy and Lensing Anomaly
• Constraints on cosmological parameters from gamma-ray burst peak photon energy and bolometric fluence measurements and other data
• Assessing cosmological evidence for non-minimal coupling
• Using SPTpol, Planck 2015, and non-CMB data to constrain tilted spatially-flat and untilted non-flat $\Lambda$CDM, XCDM, and $\varphi$CDM dark energy inflation cosmologies
• Cosmological constraints from HII starburst galaxy apparent magnitude and other cosmological measurements
• Hubble parameter data constraints on dark energy
• Planck 2015 constraints on the non-flat $\varphi$CDM inflation model
• The impact of a new median statistics $H_0$ prior on the evidence for dark radiation
• Constraints on Scalar-Field Dark Energy from Galaxy Cluster Gas Mass Fraction versus Redshift
• Constraints on Scalar-Field Dark Energy from the Cosmic Lens All-Sky Survey Gravitational Lens Statistics
• $H_0=69.8\pm 1.3$ $\mathrm{km}{\mathrm{s}}^{-1}\mathrm{Mp}{\mathrm{c}}^{-1}$, ${\Omega }_{m0}=0.288\pm 0.017$, and other constraints from lower-redshift, non-CMB, expansion-rate data
• The DESI DR1/DR2 evidence for dynamical dark energy is biased by low-redshift supernovae
• Observational constraints on non-flat dynamical dark energy cosmological models
• Planck 2015 constraints on spatially-flat dynamical dark energy models
• Constraints on Dark Energy from Galaxy Cluster Gas Mass Fraction versus Redshift data
• Pressure Parametrization of Dark Energy: First and Second-Order Constraints with Latest Cosmological Data
• Quintessential perturbations during scaling regime
• Is the $w_0{w}_a$CDM cosmological parameterization evidence for dark energy dynamics partially caused by the excess smoothing of Planck CMB anisotropy data?
• Tomographic Alcock-Paczynski Test with Redshift-Space Correlation Function: Evidence for the Dark Energy Equation of State Parameter w>-1
• Interacting Dark Sectors in light of DESI DR2
• Effects of type Ia supernovae absolute magnitude priors on the Hubble constant value
• Current data are consistent with flat spatial hypersurfaces in the $\Lambda$CDM cosmological model but favor more lensing than the model predicts
• Dynamical Dark Energy in the Crosshairs: A Joint Analysis with DESI, Pantheon plus, and TDCOSMO Constraints
• Expansion-history preferences of DESI DR2 and external data
• Constraints on Dark Energy Models Using Late Universe Probes
• How Much NEC Breaking Can the Universe Endure?
• Effect of Peak Absolute Magnitude of Type Ia Supernovae and Sound Horizon Values on Hubble Tension using DESI results

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