Nonbaryonic dark matter and scalar field coupled with a transversal interaction plus decoupled radiation

Abstract

We analyze a universe filled with interacting dark matter, a scalar field accommodated as dark radiation along with dark energy plus a decoupled radiation term within the framework of spatially flat Friedmann-Robertson-Walker (FRW) spacetime. We work in a three-dimensional internal space spanned by the interaction vector and use a transversal interaction ${\mathbf{Q}}_{\mathbf{t}}$ for solving the source equation in order to find all the interacting component energy densities. We asymptotically reconstruct the scalar field and potential from an early radiation era to the late dominate dark energy one, passing through an intermediate epoch dominated by dark matter. We apply the ${\chi }^2$ method to the updated observational Hubble data for constraining the cosmic parameters, contrast with the Union 2 sample of supernovae, and analyze the amount of dark energy in the radiation era. It turns out that our model fulfills the severe bound of ${\Omega }_{\varphi }(z\simeq 1100)<0.018$ at $2\sigma$ level, is consistent with the recent analysis that includes cosmic microwave background anisotropy measurements from the Atacama Cosmology Telescope and the South Pole Telescope along with the future constraints achievable by Planck and CMBPol experiments, and satisfies the stringent bound ${\Omega }_{\varphi }(z\simeq 10^{10})<0.04$ at $2\sigma$ level in the big-bang nucleosynthesis epoch.

12 pages plus 5 pages of figures. In order to see the figures go to the journal website (http://link.springer.com/article/10.1140%2Fepjc%2Fs10052-013-2497-4). arXiv admin note: substantial text overlap with arXiv:1303.3356, arXiv:1210.5505

References in corpus (14)

• Wilkinson Microwave Anisotropy Probe (WMAP) Three Year Results: Implications for Cosmology
• A direct empirical proof of the existence of dark matter
• Spectra and Light Curves of Six Type Ia Supernovae at 0.511 < z < 1.12 and the Union2 Compilation
• Revealing the properties of dark matter in the merging cluster MACSJ0025.4-1222
• Cosmological Constraints from Strong Gravitational Lensing in Galaxy Clusters
• Growing Matter
• Limits on Dark Radiation, Early Dark Energy, and Relativistic Degrees of Freedom
• Internal space structure generalization of the quintom cosmological scenario
• Future CMB Constraints on Early, Cold, or Stressed Dark Energy
• Cosmological bounds on the equation of state of dark matter
• Testing cosmic opacity from SNe Ia and Hubble parameter through three cosmological-model-independent methods
• Dark energy interacting with two fluids
• Dark matter, dark energy, and dark radiation coupled with a transversal interaction
• Dark energy interacting with neutrinos and dark matter: a phenomenological theory

Cited by in corpus (9)

• Hubble parameter measurement constraints on the redshift of the deceleration-acceleration transition, dynamical dark energy, and space curvature
• Cosmographic bounds on the cosmological deceleration-acceleration transition redshift in $f(\mathcal{R})$ gravity
• Soundness of Dark Energy properties
• Interacting dark sector with variable vacuum energy
• An Axially Symmetric Transitioning models with Observational Constraints
• Finite time future singularities in the interacting dark sector
• Dark matter interacts with variable vacuum energy
• Interacting realization of cosmological singularities with variable vacuum energy
• The frozen vanilla model: Exploring dark sector interactions with delta effective theories