Reconstructing generalized ghost condensate model with dynamical dark energy parametrizations and observational datasets
arXiv:astro-ph/0612642 · doi:10.1142/S0217732308023505
Abstract
Observations of high-redshift supernovae indicate that the universe is accelerating at the present stage, and we refer to the cause for this cosmic acceleration as ``dark energy''. In particular, the analysis of current data of type Ia supernovae (SNIa), cosmic large-scale structure (LSS), and the cosmic microwave background (CMB) anisotropy implies that, with some possibility, the equation-of-state parameter of dark energy may cross the cosmological-constant boundary () during the recent evolution stage. The model of ``quintom'' has been proposed to describe this crossing behavior for dark energy. As a single-real-scalar-field model of dark energy, the generalized ghost condensate model provides us with a successful mechanism for realizing the quintom-like behavior. In this paper, we reconstruct the generalized ghost condensate model in the light of three forms of parametrization for dynamical dark energy, with the best-fit results of up-to-date observational data.
8 pages, 3 figures; references added; accepted for publication in Mod. Phys. Lett. A
References in corpus (65)
- Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
- Measurements of Omega and Lambda from 42 High-Redshift Supernovae
- First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Determination of Cosmological Parameters
- Dynamics of dark energy
- The Cosmological Constant and Dark Energy
- First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Preliminary Maps and Basic Results
- Detection of the Baryon Acoustic Peak in the Large-Scale Correlation Function of SDSS Luminous Red Galaxies
- 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 SDSS and WMAP
- Cosmological Imprint of an Energy Component with General Equation of State
- de Sitter Vacua in String Theory
- A Phantom Menace? Cosmological consequences of a dark energy component with super-negative equation of state
- Cosmological Constant - the Weight of the Vacuum
- The Case for a Positive Cosmological Lambda-term
- Cosmology and the Fate of Dilatation Symmetry
- Quintessence, Cosmic Coincidence, and the Cosmological Constant
- Exploring the Expansion History of the Universe
- Accelerating Universes with Scaling Dark Matter
- The Supernova Legacy Survey: Measurement of Omega_M, Omega_Lambda and w from the First Year Data Set
- Phantom Energy and Cosmic Doomsday
- The 2dF Galaxy Redshift Survey: Power-spectrum analysis of the final dataset and cosmological implications
- A Dynamical Solution to the Problem of a Small Cosmological Constant and Late-time Cosmic Acceleration
- A Model of Holographic Dark Energy
- Essentials of k-essence
- The 3D power spectrum of galaxies from the SDSS
- Cosmological Tracking Solutions
- Dark Energy Constraints from the Cosmic Age and Supernova
- The Second Data Release of the Sloan Digital Sky Survey
- Accelerated expansion of the universe driven by tachyonic matter
- Cosmology with Ultra-light Pseudo-Nambu-Goldstone Bosons
- First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Angular Power Spectrum
- Reconstruction of a scalar-tensor theory of gravity in an accelerating universe
- Cosmological Evolution of a Quintom Model of Dark Energy
- The Third Data Release of the Sloan Digital Sky Survey
- Can dark energy evolve to the Phantom?
- CDM Models with a Smooth Component
- A classification of scalar field potentials with cosmological scaling solutions
- Reconciling dark energy models with f(R) theories
- Is there Supernova Evidence for Dark Energy Metamorphosis ?
- Prospects for probing the dark energy via supernova distance measurements
- Constraints on holographic dark energy from type Ia supernova observations
- Scalar-tensor gravity in an accelerating universe
- WMAP constraints on low redshift evolution of dark energy
- Reconstructing the Cosmic Equation of State from Supernova distances
- The Linear Theory Power Spectrum from the Lyman-alpha Forest in the Sloan Digital Sky Survey
- Uncorrelated Estimates of Dark Energy Evolution
- Hessence: A New View of Quintom Dark Energy
- Statefinder diagnostic for holographic dark energy model
- How to determine an effective potential for a variable cosmological term
- Robust Dark Energy Constraints from Supernovae, Galaxy Clustering, and Three-Year Wilkinson Microwave Anisotropy Probe Observations
- Statefinder diagnostic for coupled quintessence
- Constraints on Holographic Dark Energy from Latest Supernovae, Galaxy Clustering, and Cosmic Microwave Background Anisotropy Observations
- Quintom models with an equation of state crossing -1
- Dynamical vacuum energy, holographic quintom, and the reconstruction of scalar-field dark energy
- Reconstruction of the deceleration parameter and the equation of state of dark energy
- Reconstructing holographic quintessence
- Two-field Models of Dark Energy with Equation of State Across -1
- Constraints on holographic dark energy from X-ray gas mass fraction of galaxy clusters
- Crossing w=-1 in Gauss-Bonnet Brane World with Induced Gravity
- Future supernovae data and quintessence models
- Coupled Quintessence in a Power-Law Case and the Cosmic Coincidence Problem
- Parametrization of Quintessence and Its Potential
- Determining the Equation of State of the Expanding Universe: Inverse Problem in Cosmology
- Observing Dark Energy Dynamics with Supernova, Microwave Background and Galaxy Clustering
- Reconstruction of general scalar-field dark energy models
Cited by in corpus (20)
- Constraints on Holographic Dark Energy from Latest Supernovae, Galaxy Clustering, and Cosmic Microwave Background Anisotropy Observations
- Holographic Ricci dark energy: Current observational constraints, quintom feature, and the reconstruction of scalar-field dark energy
- Statefinder diagnosis for the interacting model of holographic dark energy
- Figure of Merit for Dark Energy Constraints from Current Observational Data
- Inflationary universe in loop quantum cosmology
- Accelerating cosmologies tested by distance measures
- New agegraphic dark energy as a rolling tachyon
- Cosmic age problem revisited in the holographic dark energy model
- Effects of time-varying in SNLS3 on constraining interacting dark energy models
- Statefinder hierarchy model for the Barrow holographic dark energy
- A closer look at interacting dark energy with statefinder hierarchy and growth rate of structure
- Reconstructing a String-Inspired Quintom Model of Dark Energy
- Clarifying Forecasts of Dark Energy Constraints from Baryon Acoustic Oscillations
- Strong gravitational lensing constraints on holographic dark energy
- Comparing holographic dark energy models with statefinder
- Effects of a time-varying color-luminosity parameter on the cosmological constraints of modified gravity models
- Beyond Two Parameters: Revisiting Dark Energy with the Latest Cosmic Probes
- Reconstructing quintom from WMAP 5-year observations: Generalized ghost condensate
- Revisiting CPL with sign-switching density: To cross or not to cross the NECB
- Gravitational Waves with Dark Energy