Challenging bulk viscous unified scenarios with cosmological observations

Abstract

In a spatially flat Friedmann-Lemaître-Robertson-Walker universe, we investigate a unified cosmic fluid scenario endowed with bulk viscosity in which the coefficient of the bulk viscosity has a power law evolution. The power law in the bulk viscous coefficient is a general case in this study which naturally includes several choices as special cases. Considering such a general bulk viscous scenario, in the present work we have extracted the observational constraints using the latest cosmological datasets and examine their behaviour at the level of both background and perturbations. From the observational analyses, we find that a non-zero bulk viscous coefficient is always favored and some of the models in this series are able to weaken the current tension on $H_0$ for some dataset. However, from the Bayesian evidence analysis, $\Lambda$CDM is favored over the bulk viscous model.

arXiv comment17 pages, 6 tables, 12 captioned figures; version accepted for publication by Physical Review D

References in corpus (82)

• Planck 2015 results. XIII. Cosmological parameters
• Dynamics of dark energy
• Type Ia Supernova Discoveries at z>1 From the Hubble Space Telescope: Evidence for Past Deceleration and Constraints on Dark Energy Evolution
• Cosmological parameters from CMB and other data: a Monte-Carlo approach
• The Complete Light-curve Sample of Spectroscopically Confirmed Type Ia Supernovae from Pan-STARRS1 and Cosmological Constraints from The Combined Pantheon Sample
• An alternative to quintessence
• Generalized Chaplygin Gas, Accelerated Expansion and Dark Energy-Matter Unification
• A 2.4% Determination of the Local Value of the Hubble Constant
• Large Magellanic Cloud Cepheid Standards Provide a 1% Foundation for the Determination of the Hubble Constant and Stronger Evidence for Physics Beyond LambdaCDM
• Planck 2013 results. I. Overview of products and scientific results
• A 6% measurement of the Hubble parameter at $z\sim 0.45$: direct evidence of the epoch of cosmic re-acceleration
• Unification of Dark Matter and Dark Energy: the Inhomogeneous Chaplygin Gas
• Planck 2015 results. XI. CMB power spectra, likelihoods, and robustness of parameters
• New Parallaxes of Galactic Cepheids from Spatially Scanning the Hubble Space Telescope: Implications for the Hubble Constant
• Can the Chaplygin gas be a plausible model for dark energy?
• Role of Modified Chaplygin Gas in Accelerated Universe
• Can interacting dark energy solve the $H_0$ tension?
• Structure Formation with Generalized Dark Matter
• 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
• Bulk Viscous Cosmology
• Robust Dark Energy Constraints from Supernovae, Galaxy Clustering, and Three-Year Wilkinson Microwave Anisotropy Probe Observations
• Dark Energy and Viscous Cosmology
• Cosmological Evolution With Interaction Between Dark Energy And Dark Matter
• Viscous Cosmology for Early- and Late-Time Universe
• Viscous Little Rip Cosmology
• Constraints on the sum of the neutrino masses in dynamical dark energy models with $w(z)\ge -1$ are tighter than those obtained in $\Lambda$CDM
• Echo of interactions in the dark sector
• Constraining Dark Energy Dynamics in Extended Parameter Space
• Interacting dark energy with time varying equation of state and the $H_0$ tension
• Does Bulk Viscosity Create a Viable Unified Dark Matter Model?
• Bulk Viscous Cosmology
• Bulk viscosity driving the acceleration of the Universe
• No evidence for extensions to the standard cosmological model
• Accelerated Universe from Modified Chaplygin Gas and Tachyonic Fluid
• A Vacuum Phase Transition Solves $H_0$ Tension
• Observational constraints on one-parameter dynamical dark-energy parametrizations and the $H_0$ tension
• Viscous dark energy and phantom evolution
• Bulk viscous cosmology: statefinder and entropy
• Constraints on modified Chaplygin gas from recent observations and a comparison of its status with other models
• Viscous Modified Cosmic Chaplygin Gas Cosmology
• Dark goo: Bulk viscosity as an alternative to dark energy
• Revisiting Generalized Chaplygin Gas as a Unified Dark Matter and Dark Energy Model
• Can a matter-dominated model with constant bulk viscosity drive the accelerated expansion of the universe?
• On the Cardy-Verlinde Entropy Formula in Viscous Cosmology
• Cosmological consequences of an adiabatic matter creation process
• Cosmological solutions with nonlinear bulk viscosity
• Is Emergent Universe a Consequence of Particle Creation Process?
• Stability properties of some perfect fluid cosmological models
• Constraints on dissipative unified dark matter
• Phantom behavior via cosmological creation of particles
• Non-adiabatic dark fluid cosmology
• Evolution and Dynamics of a Matter creation model
• Qualitative Viscous Cosmology
• Cosmological constraints on alternative model to Chaplygin fluid revisited
• A third alternative to explain recent observations: Future deceleration
• Observational constraint on generalized Chaplygin gas model
• Modified Chaplygin Gas as a Unified Dark Matter and Dark Energy Model and Cosmic Constraints
• A New Approach to Cosmological Bulk Viscosity
• Phantom dark energy as an effect of bulk viscosity
• Observational constraints of a new unified dark fluid and the $H_0$ tension
• Gravitationally induced adiabatic particle production: From Big Bang to de Sitter
• Interacting viscous dark fluids
• Two-fluid solutions of particle-creation cosmologies
• Assessing the impact of bulk and shear viscosities on large scale structure formation
• Non-minimal Derivative Coupling Scalar Field and Bulk Viscous Dark Energy
• Cosmological solutions with gravitational particle production and non-zero curvature
• Causal Bulk Viscous Dissipative Isotropic Cosmologies with Variable Gravitational and Cosmological Constants
• Connecting inflation with late cosmic acceleration by particle production
• Is $\Lambda$CDM an effective CCDM cosmology?
• Will there be future deceleration? A study of particle creation mechanism in non-equilibrium thermodynamics
• Bulk Viscous Matter-dominated Universes: Asymptotic Properties
• Gravitationally influenced particle creation models and late-time cosmic acceleration
• Exact Solutions in Multidimensional Cosmology with Shear and Bulk Viscosity
• Bayesian analysis of bulk viscous matter dominated universe
• Bianchi Type I Universes with Causal Bulk Viscous Cosmological Fluid
• Cosmological perturbations for imperfect fluids
• Interacting viscous mixtures
• Cosmological models with bulk viscosity in presence of adiabatic matter creation and with G, c and Lambda variables
• Renormalization Group Approach to Causal Viscous Cosmological Models
• Gravitationally induced particle production and its impact on structure formation
• Cosmological solutions in spatially curved universes with adiabatic particle production

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• Interacting scenarios with dynamical dark energy: observational constraints and alleviation of the $H_0$ tension
• Revisiting a negative cosmological constant from low-redshift data
• Dark Energy with Phantom Crossing and the $H_0$ tension
• Cosmological constraints in extended parameter space from the Planck 2018 Legacy release
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• Finite-time Cosmological Singularities and the Possible Fate of the Universe
• Reconciling $H_0$ tension in a six parameter space?
• Combined analysis of Planck and SPTPol data favors the early dark energy models
• Generalized Emergent Dark Energy Model and the Hubble Constant Tension
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• Metastable dark energy models in light of Planck 2018: Alleviating the $H_0$ tension
• Cosmology Intertwined: A Review of the Particle Physics, Astrophysics, and Cosmology Associated with the Cosmological Tensions and Anomalies
• Remarks on cosmological bulk viscosity in different epochs
• A critical discussion on the $H_0$ tension
• Can the Hubble tension be resolved by bulk viscosity?
• Cosmic expansion with matter creation and bulk viscosity
• Evolution of thermodynamic quantities on cosmological horizon in $\Lambda (t)$ model
• Exploring bulk viscous unified scenarios with Gravitational Waves Standard Sirens
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• $\Lambda$CDM as a Noether Symmetry in Cosmology
• Constraining viscous fluid models in $f(Q)$ gravity with data
• Evolution of dissipative and non-dissipative universes in holographic cosmological models with a power-law term
• Effects of a Late Gravitational Transition on Gravitational Waves and Anticipated Constraints
• Do current observations support transient acceleration of our universe?
• Qualitative analysis for viscous cosmologies in a non linear regime of the Israel-Stewart formalism
• WIMP dark matter in bulk viscous non-standard cosmologies
• Lightening the Dark Matter from its Viscosity and Explanation of EDGES Anomaly
• Thermodynamics of viscous dark energy for the late future time universe
• Inflating without a flat potential: Viscous inflation
• FIMP Dark Matter in bulk viscous non-standard cosmologies
• Sustaining quasi de-Sitter inflation with bulk viscosity
• Matter Creation Cosmologies and Accelerated Expansion
• Ricci cosmology in light of astronomical data
• Note on bulk viscosity as an alternative to dark energy
• Testing a nonlinear solution of the Israel-Stewart theory
• Dark Energy Density and IS (Israel-Stewart) Bulk Viscosity Model