Implication of Dark Energy Parametrizations on the Determination of the Curvature of the Universe

Abstract

We investigate how the nature of dark energy affects the determination of the curvature of the universe from recent observations. For this purpose, we consider the constraints on the matter and dark energy density using observations of type Ia supernovae, baryon acoustic oscillation peak and cosmic microwave background with several types of dark energy equation of state. Although it is usually said that the combination of current observations favors a flat universe, we found that a relatively large parameter space allows the universe to be open for a particular model of dark energy. We also discuss what kind of dark energy model or prior allow a non-flat universe.

arXiv comment13 pages, 5 figures, added references

References in corpus (24)

• Wilkinson Microwave Anisotropy Probe (WMAP) Three Year Results: Implications for Cosmology
• 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
• 4D Gravity on a Brane in 5D Minkowski Space
• The Supernova Legacy Survey: Measurement of Omega_M, Omega_Lambda and w from the First Year Data Set
• Three Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Polarization Analysis
• Three-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Temperature Analysis
• Probing the dark energy: methods and strategies
• Future Supernovae observations as a probe of dark energy
• Robust Dark Energy Constraints from Supernovae, Galaxy Clustering, and Three-Year Wilkinson Microwave Anisotropy Probe Observations
• Observational constraints on self-accelerating cosmology
• Constraining Dark Energy with X-ray Galaxy Clusters, Supernovae and the Cosmic Microwave Background
• Constraining the dark energy with galaxy clusters X-ray data
• Probing the curvature and dark energy
• Dark energy and the angular size - redshift diagram for milliarcsecond radio sources
• The Fate of Dark Energy
• On Precision Measurement of the Mean Curvature
• Dark Energy Evolution and the Curvature of the Universe from Recent Observations
• On the equation of state of Dark Energy
• Determining the equation of state of dark energy from angular size of compact radio sources and X-ray gas mass fraction of galaxy clusters
• Reduction of Cosmological Data for the Detection of Time-varying Dark Energy Density
• Weighing the Universe with Photometric Redshift Surveys and the Impact on Dark Energy Forecasts
• Cosmic Degeneracy with Dark Energy Equation of State
• Uncertainty on determining the dark energy equation of state due to the spatial curvature

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• Dark Energy from structure: a status report
• Observational Constraints on Dark Energy and Cosmic Curvature
• The primordial abundance of 4He: a self-consistent empirical analysis of systematic effects in a large sample of low-metallicity HII regions
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• The galaxy power spectrum take on spatial curvature and cosmic concordance
• Figure of Merit for Dark Energy Constraints from Current Observational Data
• Light propagation in statistically homogeneous and isotropic dust universes
• Null test of the cosmic curvature using $H(z)$ and supernovae data
• Nonlinear Structure Formation and "Apparent" Acceleration: an Investigation
• Evaluating backreaction with the peak model of structure formation
• Geometrical Constraint on Curvature with BAO experiments
• Cosmological Evolution of Interacting New Holographic Dark Energy in Non-flat Universe
• New Model-independent Method to Test the Curvature of the Universe
• Nonflat time-variable dark energy cosmology
• Model-independent Curvature Determination from Gravitational-Wave Standard Sirens and Cosmic Chronometers
• Model-independent estimations for the curvature from standard candles and clocks
• Planck 2015 constraints on the non-flat XCDM inflation model
• Inflation in a closed universe
• Testing the cosmic curvature at high redshifts: the combination of LSST strong lensing systems and quasars as new standard candles
• Cosmology with dropout selection: Straw-man surveys and CMB lensing
• Dark Energy Parametrizations and the Curvature of the Universe
• Model-independent constraints on cosmic curvature: implication from updated Hubble diagram of high-redshift standard candles
• Analysis of Generalized Ghost Pilgrim Dark Energy in Non-flat FRW Universe
• Model-independent Distance Calibration and Curvature Measurement using Quasars and Cosmic Chronometers
• Testing the DGP model with gravitational lensing statistics
• Supernovae, Lensed CMB and Dark Energy
• Curvature from strong gravitational lensing: a spatially closed Universe or systematics?
• Exploring the Hubble Tension and Spatial Curvature from the Ages of Old Astrophysical Objects
• Dark energy and cosmic curvature: Monte-Carlo Markov Chain approach
• Interacting Two-Fluid Viscous Dark Energy Models In Non-Flat Universe
• Observational constraints on Horava-Lifshitz cosmology
• Horava-Lifshitz cosmology with generalized Chaplygin gas
• Model-independent constraints on cosmic curvature: implication from the future gravitational wave observation DECIGO
• Multiple measurements of gravitational waves acting as standard probes: model-independent constraints on the cosmic curvature with DECIGO
• Overall observational constraints on the running parameter λof Horava-Lifshitz gravity
• DECi-hertz Interferometer Gravitational-wave Observatory: Forecast constraints on the cosmic curvature with LSST strong lenses
• A model independent measure of the large scale curvature of the Universe
• The Hubble constant and dark energy from cosmological distance measures
• Cosmology With A Dark Refraction Index
• Revisiting the epoch of cosmic acceleration
• Late time evolution of negatively curved FLRW models
• On the Determination of Neutrino Masses and Dark Energy Evolution from the Cross Correlation of CMB and LSS
• Tilted non-spatially-flat inflation
• Is Dark Energy Changing? Probing the Universe's Expansion with present and future astronomical probes
• The Effects of Spatial Curvature on Cosmic Evolution