Interacting parametrized post-Friedmann method

Abstract

We apply the interacting parametrized post-Friedmann (IPPF) method to a coupled dark energy model where the interaction is proportional to dark matter density at background level. In doing so, we perform a Markov Chain Monte-Carlo analysis which combines several cosmological probes including the cosmic microwave background (WMAP9+Planck) data, baryon acoustic oscillation (BAO) measurements, JLA sample of supernovae, Hubble constant (HST), and redshift-space distortion (RSD) measurements through the $\mathrm{f}{\sigma }_8(\mathrm{z})$ data points. The joint observational analysis of $\mathrm{Planck}+\mathrm{WP}+\mathrm{JLA}+\mathrm{BAO}+\mathrm{HST}+\mathrm{RSD}$ data leads to a coupling parameter, ${\xi }_c=0.00140_{-0.00080}^{+0.00079}$ at $1\sigma$ level for vanishing momentum transfer potential; this value is reduced a when the momentum transfer potential is switched on, giving ${\xi }_c=0.00136_{-0.00073}^{+0.00080}$ at $1\sigma$ level. The CMB power spectrum shows up a correlation between the coupling parameter ${\xi }_c$ and the position of acoustic peaks or their amplitudes. The first peak's height increases when ${\xi }_c$ takes larger values and its position is shifted. We also obtain the matter power spectrum may be affected by the strength of interaction coupling over scales bigger that $10^{-2}\mathrm{h}\mathrm{Mp}{\mathrm{c}}^{-1}$, reducing its amplitude in relation to the vanilla model.

jcap style, 25pages, 6 figures and 4 tables

References in corpus (41)

• Improved cosmological constraints from a joint analysis of the SDSS-II and SNLS supernova samples
• The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: Baryon Acoustic Oscillations in the Data Release 10 and 11 galaxy samples
• Spectra and Light Curves of Six Type Ia Supernovae at 0.511 < z < 1.12 and the Union2 Compilation
• Supernova Constraints and Systematic Uncertainties from the First 3 Years of the Supernova Legacy Survey
• Measuring the Baryon Acoustic Oscillation scale using the SDSS and 2dFGRS
• SNLS3: Constraints on Dark Energy Combining the Supernova Legacy Survey Three Year Data with Other Probes
• A Parameterized Post-Friedmann Framework for Modified Gravity
• Large-scale instability in interacting dark energy and dark matter fluids
• Dynamics of dark energy with a coupling to dark matter
• Testing cosmological structure formation using redshift-space distortions
• Dynamics of interacting dark energy
• Cosmologies with Energy Exchange
• Crossing the Phantom Divide with Parameterized Post-Friedmann Dark Energy
• Effects of the interaction between dark energy and dark matter on cosmological parameters
• Signature of the interaction between dark energy and dark matter in galaxy clusters
• Cosmological coincidence problem in interacting dark energy models
• Toward a solution of the coincidence problem
• The Growth of Structure in Interacting Dark Energy Models
• Parametrized Post-Friedmann Signatures of Acceleration in the CMB
• Adiabatic instability in coupled dark energy-dark matter models
• Interacting models of soft coincidence
• On the large-scale instability in interacting dark energy and dark matter fluids
• Limits on Dark Radiation, Early Dark Energy, and Relativistic Degrees of Freedom
• Parametrized Post-Friedmann Framework for Interacting Dark Energy
• Large-scale stable interacting dark energy model: Cosmological perturbations and observational constraints
• Current constraints on interacting holographic dark energy
• Future CMB Constraints on Early, Cold, or Stressed Dark Energy
• Exploring the full parameter space for an interacting dark energy model with recent observations including redshift-space distortions: Application of the parametrized post-Friedmann approach
• Testing coupled dark energy with large scale structure observation
• Post-$Planck$ constraints on interacting vacuum energy
• New interactions in the dark sector mediated by dark energy
• Cosmological model with interactions in the dark sector
• The Adiabatic Instability on Cosmology's Dark Side
• Slow-Roll Suppression of Adiabatic Instabilities in Coupled Scalar Field-Dark Matter Models
• Interacting Cosmological Fluids and the Coincidence Problem
• Cosmological Perturbations in Models of Coupled Dark Energy
• Future weak lensing constraints in a dark coupled universe
• New Limits on Coupled Dark Energy from Planck
• Observational constraint on the interacting dark energy models including the Sandage-Loeb test
• Dark energy interacting with neutrinos and dark matter: a phenomenological theory
• Constraints on a decomposed dark fluid with constant adiabatic sound speed by jointing the geometry test and growth rate after Planck data

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• Cosmological direct detection of dark energy: non-linear structure formation signatures of dark energy scattering with visible matter
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