An analytic model for interacting dark energy and its observational constraints

Abstract

The paper deals with a theoretical model for interacting dark energy. The interaction between the cold dark matter (dust) and the dark energy has been assumed to be non-gravitational in nature. Exact analytic cosmological solutions are obtained both for constant and variable equation of state for dark energy. It is found that, for very small value of the coupling parameter (in the interaction term), the model asymptotically extends up to $\Lambda$CDM, while the model can enter into the phantom domain asymptotically, if the coupling parameter is not so small. Both the solutions are then analyzed with 194 Supernovae Type Ia data. The best fit parameters are shown with 1$\sigma$ and 2$\sigma$ confidence intervals. Finally, we have discussed the cosmographic parameters for both the cases.

14 pages, 7 figures, Published version

References in corpus (13)

• Planck 2013 results. XVI. Cosmological parameters
• Dynamics of dark energy
• Dynamics of dark energy with a coupling to dark matter
• Dynamics of interacting dark energy
• Effects of the interaction between dark energy and dark matter on cosmological parameters
• Dark Interactions and Cosmological Fine-Tuning
• Cosmic Duality in Quintom Universe
• Dynamical analysis in scalar field cosmology
• Two scalar field cosmology: Conservation laws and exact solutions
• Observational constraints on a holographic, interacting dark energy model
• A cosmographic analysis of holographic dark energy models
• Will there be again a transition from acceleration to deceleration in course of the dark energy evolution of the universe?
• Single scale factor for the universe from the creation of radiation and matter till the present

Cited by in corpus (78)

• In the Realm of the Hubble tension $-$ a Review of Solutions
• New physics in light of the $H_0$ tension: an alternative view
• 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
• 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
• New constraints on interacting dark energy from cosmic chronometers
• 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
• A new interacting two fluid model and its consequences
• 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
• Novel approach towards the large-scale stable Interacting Dark-Energy models and their Astronomical Bounds
• Astronomical bounds on a cosmological model allowing a general interaction in the dark sector
• Listening to the sound of dark sector interactions with gravitational wave standard sirens
• Do we have any hope of detecting scattering between dark energy and baryons through cosmology?
• 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
• A model with interaction of dark components and recent observational data
• Effects of neutrino mass hierarchies on dynamical dark energy models
• An overview of what current data can (and cannot yet) say about evolving dark energy
• 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
• Dawn of the dark: unified dark sectors and the EDGES Cosmic Dawn 21-cm signal
• Remedy of some cosmological tensions via effective phantom-like behavior of interacting vacuum energy
• In search of the dark matter dark energy interaction: a kinematic approach
• How predictions of cosmological models depend on Hubble parameter data sets
• Constraints on interacting dark energy models through cosmic chronometers and Gaussian process
• Dynamics of nonlinear interacting dark energy models
• Cosmological constraints on an exponential interaction in the dark sector
• $f(R)$-gravity from Killing Tensors
• Large-scale (in-) stability Analysis of an Exactly Solved Coupled Dark-Energy Model
• Dynamics and cosmological evolution in Λ-varying cosmology
• Understanding the phenomenology of interacting dark energy scenarios and their theoretical bounds
• Late-Time constraints on Interacting Dark Energy: Analysis independent of $H_0$, $r_d$ and $M_B$
• Tightening the reins on non-minimal dark sector physics: Interacting Dark Energy with dynamical and non-dynamical equation of state
• Dynamical Dark sectors and Neutrino masses and abundances
• Metastable dark energy models in light of Planck 2018: Alleviating the $H_0$ tension
• Forecasting Interacting Vacuum-Energy Models using Gravitational Waves
• 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
• Background evolution and growth of structures in interacting dark energy through dynamical system analysis
• Observational constraints and predictions of the interacting dark sector with field-fluid mapping
• A model-independent reconstruction of dark sector interactions
• Dynamical analysis of interacting dark energy model in the framework of particle creation mechanism
• Probing Interacting Dark Energy and Scattering of Baryons with Dark Matter in Light of EDGES 21cm Signal
• Cosmological perturbations in the interacting dark sector: Mapping fields and fluids
• Reconstruction of interaction rate in Holographic dark energy
• III. Interacting Dark Energy: Summary of Models, Pathologies, and Constraints
• Interacting dark energy after DESI DR2: a challenge for $\Lambda$CDM paradigm?
• Interacting Holographic Dark Energy, the Present Accelerated Expansion and Black Holes
• On the interacting dark energy scenarios $-$ the case for Hubble constant tension
• Dynamics of interacting scalar field model in the realm of chiral cosmology
• Interacting dark sector: a dynamical system perspective
• Interacting phantom dark energy: new accelerating scaling attractors
• Addressing the High-$f$ Problem in Pseudo-Nambu-Goldstone Boson Dark Energy Models with Dark Matter - Dark Energy Interaction
• Late-time acceleration driven by shift-symmetric Galileon in the presence of Torsion
• Is it possible to obtain cosmic accelerated expansion through energy transfer between different energy densities?
• Coupled scalar field cosmology with effects of curvature
• I. Linear Interacting Dark Energy: Analytical Solutions and Theoretical Pathologies
• Quadratic integrals of a multi-scalar cosmological model
• Dynamics of the universe with disformal coupling between the dark sectors
• Interacting Dark Energy: New parametrization and observational constraints
• Generalized Interacting Dark Energy Model and Loop Quantum Cosmology
• Reconstructing the dark matter and dark energy interaction scenarios from observations
• Interacting Dark Energy and Its Implications for Unified Dark Sector
• Solving an Interacting Quintessence Model with a Sound Horizon Initial Condition and its Observational Constraints
• Revisiting cosmological diffusion models in Unimodular Gravity and the $H_0$ tension
• Some Classes of Interacting Two-Fluid Model of the Expanding Universe
• Interacting tachyon with varying mass dark matter
• Holographic Ricci DE as running vacuum with nonlinear interactions
• Dissecting the $H_0$ and $S_8$ tensions with Planck + BAO + supernova type Ia in multi-parameter cosmologies
• Generic autonomous system approach to interacting dark energy models
• Accelerating scaling solutions from dark matter particle creation