A new interacting two fluid model and its consequences

Abstract

In the background of a homogeneous and isotropic spacetime with zero spatial curvature, we consider interacting scenarios between two barotropic fluids, one is the pressureless dark matter (DM) and the other one is dark energy (DE), in which the equation of state (EoS) in DE is either constant or time dependent. In particular, for constant EoS in DE, we show that the evolution equations for both fluids can be analytically solved. For all these scenarios, the model parameters have been constrained using the current astronomical observations from Type Ia Supernovae, Hubble parameter measurements, and baryon acoustic oscillations distance measurements. Our analysis shows that both for constant and variable EoS in DE, a very small but nonzero interaction in the dark sector is favored while the EoS in DE can predict a slight phantom nature, i.e. the EoS in DE can cross the phantom divide line `$-1$'. On the other hand, although the models with variable EoS describe the observations better, but the Akaike Information Criterion supports models with minimal number of parameters. However, it is found that all the models are very close to the $\Lambda$CDM cosmology.

13 pages, 3 figures, 2 tables; Accepted for publication in MNRAS

References in corpus (74)

• Measurements of Omega and Lambda from 42 High-Redshift Supernovae
• First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Determination of Cosmological Parameters
• Planck 2015 results. XIII. Cosmological parameters
• Seven-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• Planck 2013 results. XVI. Cosmological parameters
• Detection of the Baryon Acoustic Peak in the Large-Scale Correlation Function of SDSS Luminous Red Galaxies
• Cosmological parameters from SDSS and WMAP
• Cosmological Constant - the Weight of the Vacuum
• The 6dF Galaxy Survey: Baryon Acoustic Oscillations and the Local Hubble Constant
• A Flat Universe from High-Resolution Maps of the Cosmic Microwave Background Radiation
• Exploring the Expansion History of the Universe
• Accelerating Universes with Scaling Dark Matter
• Baryon Acoustic Oscillations in the Sloan Digital Sky Survey Data Release 7 Galaxy Sample
• Coupled Quintessence
• The Hubble Space Telescope Cluster Supernova Survey: V. Improving the Dark Energy Constraints Above z>1 and Building an Early-Type-Hosted Supernova Sample
• Constraints on the redshift dependence of the dark energy potential
• A 6% measurement of the Hubble parameter at $z\sim 0.45$: direct evidence of the epoch of cosmic re-acceleration
• Cosmic Chronometers: Constraining the Equation of State of Dark Energy. I: H(z) Measurements
• Seven-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Sky Maps, Systematic Errors, and Basic Results
• Raising the bar: new constraints on the Hubble parameter with cosmic chronometers at z$\sim$2
• Improved constraints on the expansion rate of the Universe up to z~1.1 from the spectroscopic evolution of cosmic chronometers
• The WiggleZ Dark Energy Survey: mapping the distance-redshift relation with baryon acoustic oscillations
• Holographic dark energy and cosmic coincidence
• Interacting Quintessence
• Dark Matter and Dark Energy Interactions: Theoretical Challenges, Cosmological Implications and Observational Signatures
• Interacting quintessence solution to the coincidence problem
• Cross-correlation Tomography: Measuring Dark Energy Evolution with Weak Lensing
• Cosmological Constraints from Measurements of Type Ia Supernovae discovered during the first 1.5 years of the Pan-STARRS1 Survey
• Future Supernovae observations as a probe of dark energy
• Dynamics of dark energy with a coupling to dark matter
• Indications of a late-time interaction in the dark sector
• Dynamics of interacting dark energy
• Constraining the equation of state of the Universe from Distant Type Ia Supernovae and Cosmic Microwave Background Anisotropies
• Tracking and coupled dark energy as seen by WMAP
• Cosmological Evolution With Interaction Between Dark Energy And Dark Matter
• Effects of the interaction between dark energy and dark matter on cosmological parameters
• From cosmic deceleration to acceleration: new constraints from SN Ia and BAO/CMB
• Interactions in Scalar Field Cosmology
• Probing the interaction between dark matter and dark energy in the presence of massive neutrinos
• Reconciling CMB and structure growth measurements with dark energy interactions
• Gravitational Lensing as a Probe of Quintessence
• Linear and nonlinear interactions in the dark sector
• Interacting Dark Energy and Dark Matter: observational Constraints from Cosmological Parameters
• Testing the Cosmic Coincidence Problem and the Nature of Dark Energy
• Dark Interactions and Cosmological Fine-Tuning
• New constraints on interacting dark energy from cosmic chronometers
• Hints of dynamical vacuum energy in the expanding Universe
• Constraints on the Coupling between Dark Energy and Dark Matter from CMB data
• Coupled quintessence and the coincidence problem
• Reconstructing the interaction between dark energy and dark matter using Gaussian Processes
• Cosmological constraints on interacting dark energy with redshift-space distortion after Planck data
• Interacting Dark Energy and Cosmological Equations of State
• The Parameterized Post-Friedmannian Framework for Interacting Dark Energy Theories
• An analytic model for interacting dark energy and its observational constraints
• Can luminosity distance measurements probe the equation of state of dark energy
• On phenomenological models of dark energy interacting with dark matter
• Constraining early and interacting dark energy with gravitational wave standard sirens: the potential of the eLISA mission
• Two scalar field cosmology: Conservation laws and exact solutions
• A generalized equation of state for dark energy
• Constraining interacting dark energy models with latest cosmological observations
• Chasing the phantom: A closer look at Type Ia supernovae and the dark energy equation of state
• Is the future universe singular: Dark Matter versus modified gravity?
• Dark Energy Constraints after Planck
• Coupled dark energy with perturbed Hubble expansion rate
• Model-independent limits and constraints on extended theories of gravity from cosmic reconstruction techniques
• Dark matter-dark energy interaction for a time-dependent equation of state
• Classical and Quantum Solutions in Brans-Dicke Cosmology with a Perfect Fluid
• The Dark Side of the Universe after Planck
• Exact solutions for the interacting tachyonic-dark matter system
• Cosmological model of the interaction between dark matter and dark energy
• Coupling dark energy to dark matter inhomogeneities
• Vacuum Cherenkov radiation and bremsstrahlung from disformal couplings
• Dark matter interacts with variable vacuum energy
• Degeneracy between primordial non-Gaussianity and interaction in the dark sector

Cited by in corpus (73)

• In the Realm of the Hubble tension $-$ a Review of Solutions
• Non-minimal dark sector physics and cosmological tensions
• Interacting dark energy in the early 2020s: a promising solution to the $H_0$ and cosmic shear tensions
• Tale of stable interacting dark energy, observational signatures, and the $H_0$ tension
• Echo of interactions in the dark sector
• Interacting scenarios with dynamical dark energy: observational constraints and alleviation of the $H_0$ tension
• Interacting dark energy with time varying equation of state and the $H_0$ tension
• Revisiting a negative cosmological constant from low-redshift data
• Large-scale Stability and Astronomical Constraints for Coupled Dark-Energy Models
• Observational constraints on sign-changeable interaction models and alleviation of the $H_0$ tension
• Nonlinear interacting cosmological models after Planck 2018 legacy release and the $H_0$ tension
• Field theoretic interpretations of interacting dark energy scenarios and recent observations
• Astronomical bounds on a cosmological model allowing a general interaction in the dark sector
• Novel approach towards the large-scale stable Interacting Dark-Energy models and their Astronomical Bounds
• Listening to the sound of dark sector interactions with gravitational wave standard sirens
• 2021-$H_0$ Odyssey: Closed, Phantom and Interacting Dark Energy Cosmologies
• Finite-time Cosmological Singularities and the Possible Fate of the Universe
• Dark calling Dark: Interaction in the dark sector in presence of neutrino properties after Planck CMB final release
• Dark sectors with dynamical coupling
• All-inclusive interacting dark sector cosmologies
• Searching for dark matter - dark energy interactions: going beyond the conformal case
• Effects of neutrino mass hierarchies on dynamical dark energy models
• New constraints on interacting dark energy from DESI DR2 BAO observations
• Reconstructing the dark sector interaction with LISA
• Effects of Anisotropic Stress in Interacting Dark Matter - Dark Energy Scenarios
• Constraining a dark matter and dark energy interaction scenario with a dynamical equation of state
• A new parametrization of Hubble parameter in $f(Q)$ gravity
• Dawn of the dark: unified dark sectors and the EDGES Cosmic Dawn 21-cm signal
• Soundness of Dark Energy properties
• Remedy of some cosmological tensions via effective phantom-like behavior of interacting vacuum energy
• How predictions of cosmological models depend on Hubble parameter data sets
• Dynamics of nonlinear interacting dark energy models
• Cosmological constraints on an exponential interaction in the dark sector
• Emergent Dark Energy, neutrinos and cosmological tensions
• Large-scale (in-) stability Analysis of an Exactly Solved Coupled Dark-Energy Model
• On structure formation from a small-scales-interacting dark sector
• Accelerating expansion of the universe in modified symmetric teleparallel gravity
• Understanding the phenomenology of interacting dark energy scenarios and their theoretical bounds
• Dynamical Dark sectors and Neutrino masses and abundances
• Tightening the reins on non-minimal dark sector physics: Interacting Dark Energy with dynamical and non-dynamical equation of state
• Metastable dark energy models in light of Planck 2018: Alleviating the $H_0$ tension
• On the dynamics of a dark sector coupling
• Dynamics in Varying vacuum Finsler-Randers Cosmology
• Forecasting Interacting Vacuum-Energy Models using Gravitational Waves
• Testing logarithmic corrections on $R^2$-exponential gravity by observational data
• Cosmology Intertwined: A Review of the Particle Physics, Astrophysics, and Cosmology Associated with the Cosmological Tensions and Anomalies
• Theoretical and observational bounds on some interacting vacuum energy scenarios
• Mass varying neutrinos, symmetry breaking, and cosmic acceleration
• Non-parametric reconstruction of interaction in the cosmic dark sector
• IWDM: The fate of an interacting non-cold dark matter $-$ vacuum scenario
• Interacting quintessence in light of Generalized Uncertainty Principle: Cosmological perturbations and dynamics
• Flat FLRW Universe in logarithmic symmetric teleparallel gravity with observational constraints
• Ghost condensates and pure kinetic $k$-essence condensates in presence of field-fluid non-minimal coupling in the dark sector
• Dynamics in interacting scalar-torsion theory
• On the interacting dark energy scenarios $-$ the case for Hubble constant tension
• Constraints On Dark Energy Models From Galaxy Clusters and Gravitational Lensing Data
• Addressing the High-$f$ Problem in Pseudo-Nambu-Goldstone Boson Dark Energy Models with Dark Matter - Dark Energy Interaction
• Bulk viscous fluid in symmetric teleparallel cosmology: theory versus experiment
• Exploring evidence of interaction between dark energy and dark matter
• Thermodynamic Constraints on the Dark Sector
• Stability analysis of an interacting holographic dark energy model
• Analysis cosmological tachyon and fermion model and observation data constraints
• Universe consisting of diffusive dark fluids: thermodynamics and stability analysis
• One-loop power spectrum corrections in interacting dark energy cosmologies
• Interacting Dark Energy: New parametrization and observational constraints
• Reconstructing the dark matter and dark energy interaction scenarios from observations
• Evolution of cosmological perturbations in the models with interacting dynamical dark energy
• Interacting Models of Generalised Chaplygin Gas and Modified Chaplygin Gas with Barotropic Fluid
• Interacting Dark Energy and Its Implications for Unified Dark Sector
• Phantom cosmology with arbitrary potential: New accelerating scaling attractors
• Some Classes of Interacting Two-Fluid Model of the Expanding Universe
• Dissecting the $H_0$ and $S_8$ tensions with Planck + BAO + supernova type Ia in multi-parameter cosmologies
• Decaying vacuum and evolution from early inflation to late acceleration