Cosmological constraints on interacting dark energy with redshift-space distortion after Planck data

2014/01/31 by Weiqiang Yang, Lixin Xu · 7 citations
Physics and Astronomy · #Anisotropy #Astrophysics #Baryon acoustic oscillations #Cosmic microwave background #Cosmology #Cosmology and Gravitation Theories #Dark energy #Dark matter #Galaxies: Formation, Evolution, Phenomena #Galaxy #Particle physics #Physics #Planck #Quantum mechanics #Redshift #Solar and Space Plasma Dynamics #astro-ph.CO

paper · pdf · doi:10.1103/physrevd.89.083517

published as Phys. Rev. D 89, 083517 (2014) · 18 pages, 10 figures

openalex publication_date 2014/04/08 · arxiv created 2014/04/09 · arxiv updated 2014/04/10 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

The interacting dark energy model could propose a effective way to avoid the coincidence problem. In this paper, dark energy is taken as a fluid with a constant equation-of-state parameter w_x. In a general gauge, we could obtain two sets of different perturbation equations when the momentum transfer potential is vanished in the rest frame of dark matter or dark energy. There are many kinds of interacting forms from the phenomenological considerations; here, we choose Q=3H\ensuremathξ_x\ensuremathρ_x, which owns the stable perturbations in most cases. Then, according to the Markov chain Monte Carlo method, we constrain the model by currently available cosmic observations, which include cosmic microwave background radiation, baryon acoustic oscillation, type Ia supernovae, and f\ensuremathσ₈(z) data points from redshift-space distortion. Jointing the geometry tests with the large scale structure information, the results show a tighter constraint on the interacting model than the case without f\ensuremathσ₈(z) data. We find the interaction rate in 3\ensuremathσ regions: \ensuremathξ_x=0.00372_\ensuremath-0.00372\ensuremath-0.00372\ensuremath-0.00372^{+0.000768+0.00655+0.0102}. It means that the recently cosmic observations favor a small interaction rate between the dark sectors, snf at the same time, the measurement of redshift-space distortion could rule out a large interaction rate in the 1\ensuremathσ region.

Citations

• Superacceleration as the signature of a dark sector interaction
• Phantom Energy: Dark Energy withw<−1Causes a Cosmic Doomsday
• Measuring the Baryon Acoustic Oscillation scale using the Sloan Digital Sky Survey and 2dF Galaxy Redshift Survey
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• Perturbations in a coupled scalar field cosmology
• Adiabatic initial conditions for perturbations in interacting dark energy models
• Adiabatic instability in coupled dark energy/dark matter models
• Dark energy–dark matter interaction and putative violation of the equivalence principle from the Abell cluster A586
• Late universe dynamics with scale-independent linear couplings in the dark sector
• Probing the coupling between dark components of the universe
• Future weak lensing constraints in a dark coupled universe
• Cosmologies with energy exchange
• NINE-YEAR WILKINSON MICROWAVE ANISOTROPY PROBE ( WMAP ) OBSERVATIONS: COSMOLOGICAL PARAMETER RESULTS
• Slow-roll suppression of adiabatic instabilities in coupled scalar field-dark matter models
• A 3% SOLUTION: DETERMINATION OF THE HUBBLE CONSTANT WITH THEHUBBLE SPACE TELESCOPEAND WIDE FIELD CAMERA 3
• Testing cosmological structure formation using redshift-space distortions
• w d =−1 in interacting quintessence model
• Dark coupling

Cited by

• Constraining interacting dark energy with CMB and BAO future surveys
• Testing coupled dark energy with large scale structure observation
• Coupled dark energy with perturbed Hubble expansion rate
• The frozen vanilla model: Exploring dark sector interactions with delta effective theories
• Degeneracy between primordial non-Gaussianity and interaction in the dark sector
• Dark sectors with dynamical coupling
• Large-scale stability and astronomical constraints for coupled dark-energy models

Related

• Testing coupled dark energy with large scale structure observation
• Constraints on interacting dark energy revisited: implications for the Hubble tension
• Observational constraints on an interacting dark energy model
• Interacting Dark Energy -- constraints and degeneracies
• Coupled dark energy with perturbed Hubble expansion rate