Do WMAP data favor neutrino mass and a coupling between Cold Dark Matter and Dark Energy?

Abstract

Within the frame of cosmologies where Dark Energy (DE) is a self--interacting scalar field, we allow for a CDM--DE coupling and non--zero neutrino masses, simultaneously. In their 0--0 version, i.e. in the absence of coupling and neutrino mass, these cosmologies provide an excellent fit to WMAP, SNIa and deep galaxy sample spectra, at least as good as \LambdaCDM. When the new degrees of freedom are open, we find that CDM--DE coupling and significant neutrino masses (~0.1eV per νspecies) are at least as likely as the 0--0 option and, in some cases, even statistically favoured. Results are obtained by using a Monte Carlo Markov Chain approach.

18 pages, 10 figures, submitted to JCAP

References in corpus (48)

• Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
• Measurements of Omega and Lambda from 42 High-Redshift Supernovae
• Seven-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• Wilkinson Microwave Anisotropy Probe (WMAP) Three Year Results: Implications for Cosmology
• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• Efficient Computation of CMB anisotropies in closed FRW models
• 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
• Final Results from the Hubble Space Telescope Key Project to Measure the Hubble Constant
• Direct Evidence for Neutrino Flavor Transformation from Neutral-Current Interactions in the Sudbury Neutrino Observatory
• First Results from KamLAND: Evidence for Reactor Anti-Neutrino Disappearance
• A Flat Universe from High-Resolution Maps of the Cosmic Microwave Background Radiation
• The Supernova Legacy Survey: Measurement of Omega_M, Omega_Lambda and w from the First Year Data Set
• The 2dF Galaxy Redshift Survey: Spectra and redshifts
• The 2dF Galaxy Redshift Survey: Power-spectrum analysis of the final dataset and cosmological implications
• Coupled Quintessence
• The 3D power spectrum of galaxies from the SDSS
• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Likelihoods and Parameters from the WMAP data
• The Fourth Data Release of the Sloan Digital Sky Survey
• Measurement of Neutrino Oscillation with KamLAND: Evidence of Spectral Distortion
• Massive neutrinos and cosmology
• Indications of Neutrino Oscillation in a 250 km Long-baseline Experiment
• Measurement of the Total Active 8B Solar Neutrino Flux at the Sudbury Neutrino Observatory with Enhanced Neutral Current Sensitivity
• Detection of Polarization in the Cosmic Microwave Background using DASI
• Scaling solutions in general non-minimal coupling theories
• Observation of muon neutrino disappearance with the MINOS detectors and the NuMI neutrino beam
• The cosmon model for an asymptotically vanishing time-dependent cosmological ``constant''
• Quintessence and Supergravity
• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Angular Power Spectra
• The Atmospheric Neutrino Flavor Ratio from a 3.9 Fiducial Kiloton-Year Exposure of Soudan 2
• Primordial Nucleosynthesis for the New Cosmology: Determining Uncertainties and Examining Concordance
• The Robustness of Quintessence
• Tracking and coupled dark energy as seen by WMAP
• Nuclear Reaction Network for Primordial Nucleosynthesis: a detailed analysis of rates, uncertainties and light nuclei yields
• Matter Effects in Upward-Going Muons and Sterile Neutrino Oscillations
• Coupled and Extended Quintessence: theoretical differences and structure formation
• What Is The BBN Prediction for the Baryon Density and How Reliable Is It?
• First Intrinsic Anisotropy Observations with the Cosmic Background Imager
• N-body simulations for coupled dark energy: halo mass function and density profiles
• The 2dF Galaxy Redshift Survey: Final Data Release
• Dynamics of Interacting Quintessence Models: Observational Constraints
• First results from the Very Small Array -- III. The CMB power spectrum
• Spectroscopy of High-Redshift Supernovae from the ESSENCE Project: The First Four Years
• Limits on coupling between dark components
• Coupling between cold dark matter and dark energy from neutrino mass experiments
• The Sloan Digital Sky Survey
• Higher neutrino mass allowed if Cold Dark Matter and Dark Energy are coupled
• Constraints on Quintessence From Using Cosmological Data

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• Dark calling Dark: Interaction in the dark sector in presence of neutrino properties after Planck CMB final release
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• Imprints of Dark Energy on Cosmic Structure Formation I) Realistic Quintessence Models and the Non-Linear Matter Power Spectrum
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• Testing coupled dark energy with next-generation large-scale observations
• High-z massive clusters as a test for dynamical coupled dark energy
• The latitude dependence of the rotation measures of NVSS sources
• Distinguishing interacting dark energy from wCDM with CMB, lensing, and baryon acoustic oscillation data
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• Touch of Neutrinos on the Vacuum Metamorphosis: is the $H_0$ Solution Back?
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• Field Theories and Fluids for an Interacting Dark Sector
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• Dark energy from dark radiation in strongly coupled cosmologies with no fine tuning
• Fluctuations in strongly coupled cosmologies
• Strongly Coupled Dark Energy Cosmologies: preserving LCDM success and easing low scale problems I - Linear theory revisited
• Supernova constraints on Multi-coupled Dark Energy
• Modifying Gravity at Low Redshift
• Finding structure in the dark: coupled dark energy, weak lensing, and the mildly nonlinear regime
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• Effects of Coupled Dark Energy on the Milky Way and its Satellites
• Dynamical Dark Energy model parameters with or without massive neutrinos
• How CMB and large-scale structure constrain chameleon interacting dark energy
• Reactor sterile neutrinos, dark energy and the age of the universe
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• Effects on the two-point correlation function from the coupling of quintessence to dark matter
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