Scalar field models of dark energy with barotropic equation of state: properties and observational constraints from different datasets
arXiv:1012.1278
Abstract
The possibility of constraining the parameters of scalar field dark energy with barotropic equation of state using different available datasets is discussed. It has been found that the initial value of dark energy equation of state parameter is constrained very weakly by most of the data. We have determined the constraints on this parameter, which come from the combined dataset including supernovae from the full SDSS compilation with the MLCS2k2 fitting of light curves. We discuss also the possibility of distinguishing between different dark energy models with barotropic equation of state using the future data on CMB anisotropies.
arXiv comment9 pages, 3 figures, 1 table; to appear in Proceedings of the 10th International Gamow Summer School, Section Cosmomicrophysics, Cosmology and Gravitation
References in corpus (15)
- Seven-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
- Efficient Computation of CMB anisotropies in closed FRW models
- Cosmological parameters from CMB and other data: a Monte-Carlo approach
- Improved Cosmological Constraints from New, Old and Combined Supernova Datasets
- Spectra and Light Curves of Six Type Ia Supernovae at 0.511 < z < 1.12 and the Union2 Compilation
- Improved Distances to Type Ia Supernovae with Multicolor Light Curve Shapes: MLCS2k2
- A Redetermination of the Hubble Constant with the Hubble Space Telescope from a Differential Distance Ladder
- First-year Sloan Digital Sky Survey-II (SDSS-II) Supernova Results: Hubble Diagram and Cosmological Parameters
- Primordial Nucleosynthesis in the Precision Cosmology Era
- Cosmological Constraints from the Clustering of the Sloan Digital Sky Survey DR7 Luminous Red Galaxies
- CMB Lensing Reconstruction on the Full Sky
- SALT: a Spectral Adaptive Light curve Template for Type Ia Supernovae
- Probing cosmological parameters with the CMB: Forecasts from full Monte Carlo simulations
- Constraints on Dark Energy from Supernovae, Gamma Ray Bursts, Acoustic Oscillations, Nucleosynthesis and Large Scale Structure and the Hubble constant
- Properties and uncertainties of scalar field models of dark energy with barotropic equation of state