Comparison of the Legacy and Gold SnIa Dataset Constraints on Dark Energy Models

Abstract

We have performed a comparative analysis of three recent and reliable SnIa datasets available in the literature: the Full Gold (FG) dataset (157 data points $0<z<1.75$), a Truncated Gold (TG) dataset (140 data points $0<z<1$) and the most recent Supernova Legacy Survey (SNLS) dataset (115 data points $0<z<1$). We have analyzed and compared the likelihood of cosmological constant and dynamical dark energy parametrizations allowing for crossing of the phantom divide line (PDL). We find that even though the constraints obtained using the three datasets are consistent with each other at the 95% confidence level, the latest (SNLS) dataset shows distinct trends which are not shared by the Gold datasets. We find that the best fit dynamical $w(z)$ obtained from the SNLS dataset does not cross the PDL $w=-1$ and remains above and close to the $w=-1$ line for the whole redshift range $0<z<1$ showing no evidence for phantom behavior. The LCDM parameter values ($w_0=-1$, $w_1=0$) almost coincide with the best fit parameters of the dynamical $w(z)$ parametrizations. In contrast, the best fit dynamical $w(z)$ obtained from the Gold datasets (FG and TG) clearly crosses the PDL and departs significantly from the PDL $w=-1$ line while the LCDM parameter values are about $2\sigma$ away from the best fit $w(z)$. In addition, the $({\Omega }_{0m},{\Omega }_{\Lambda })$ parameters in a LCDM parametrization without a flat prior, fit by the SNLS dataset, favor the minimal flat LCDM concordance model. The corresponding fit with the Gold datasets mildly favors a closed universe and the flat LCDM parameter values are $1\sigma -2\sigma$ away from the best fit $({\Omega }_{0m},{\Omega }_{\Lambda })$.

Extended statistical analysis. No changes in results. Accepted in Phys. Rev. D (to appear). The mathematica files with the numerical analysis of the paper are available at http://leandros.physics.uoi.gr/snls.htm

References in corpus (42)

• 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
• The Cosmological Constant and Dark Energy
• 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
• 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
• The Cosmological Constant
• Discovery of a Supernova Explosion at Half the Age of the Universe and its Cosmological Implications
• Essentials of k-essence
• Cosmological Results from High-z Supernovae
• New Constraints on ${\Omega }_M$, ${\Omega }_{\Lambda }$, and w from an Independent Set of Eleven High-Redshift Supernovae Observed with HST
• Dark Energy Constraints from the Cosmic Age and Supernova
• Cosmology with a Primordial Scaling Field
• Reconstruction of a scalar-tensor theory of gravity in an accelerating universe
• Can dark energy evolve to the Phantom?
• Purely kinetic k-essence as unified dark matter
• Dark Matter and Dark Energy
• Cosmological Dynamics of Phantom Field
• Probing the dark energy: methods and strategies
• Is there Supernova Evidence for Dark Energy Metamorphosis ?
• 23 High Redshift Supernovae from the IfA Deep Survey: Doubling the SN Sample at z>0.7
• Extended Quintessence
• The case for dynamical dark energy revisited
• Uncorrelated Estimates of Dark Energy Evolution
• Crossing the Phantom Divide: Dark Energy Internal Degrees of Freedom
• Scalar-Tensor Gravity and Quintessence
• Cosmological parameters from supernova observations: A critical comparison of three data sets
• A comparison of cosmological models using recent supernova data
• Constraints on linear-negative potentials in quintessence and phantom models from recent supernova data
• Quintessence, super-quintessence and observable quantities in Brans-Dicke and non-minimally coupled theories
• B-Inflation
• Model-Independent Constraints on Dark Energy Density from Flux-averaging Analysis of Type Ia Supernova Data
• Future supernovae data and quintessence models
• Crossing the Phantom Divide Barrier with Scalar Tensor Theories
• Phantom Cosmologies
• Reconstruction of general scalar-field dark energy models
• Equation of State of Oscillating Brans-Dicke Scalar and Extra Dimensions
• Cosmological Effects of Radion Oscillations

Cited by in corpus (280)

• Dynamics of dark energy
• f(R) theories
• Dark energy cosmology: the equivalent description via different theoretical models and cosmography tests
• In the Realm of the Hubble tension $-$ a Review of Solutions
• Challenges for $\Lambda$CDM: An update
• Dark Energy
• Reconstructing Dark Energy
• Two new diagnostics of dark energy
• Nonlocal Cosmology
• Equation of state for dark energy in $f(T)$ gravity
• Crossing the Phantom Divide: Theoretical Implications and Observational Status
• Observational constraints on $f(T)$ theory
• A kinematical approach to dark energy studies
• Holographic dark energy models: A comparison from the latest observational data
• Consequences of dark matter-dark energy interaction on cosmological parameters derived from SNIa data
• $f(T)$ models with phantom divide line crossing
• Observational information for f(T) theories and Dark Torsion
• Reconstruction of the deceleration parameter and the equation of state of dark energy
• Holographic Ricci dark energy: Current observational constraints, quintom feature, and the reconstruction of scalar-field dark energy
• Cosmological Constraints on New Agegraphic Dark Energy
• General Cosmography Model with Spatial Curvature
• Observational constraints on one-parameter dynamical dark-energy parametrizations and the $H_0$ tension
• Robust Preference for Dynamical Dark Energy in DESI BAO and SN Measurements
• Cosmological coincidence problem in interacting dark energy models
• Observational Constraints on Cosmological Models with the Updated Long Gamma-Ray Bursts
• Quintom cosmologies admitting either tracking or phantom attractors
• Observational constraints on Galileon cosmology
• Accelerated cosmos in a non-extensive setup
• Noether Symmetry in $f(T)$ Theory
• LXCDM: a cosmon model solution to the cosmological coincidence problem?
• Observational Constraints on Quintessence: Thawing, Tracker, and Scaling models
• Probing the dynamics of dark energy with novel parametrizations
• Notes on Ghost Dark Energy
• Observing Dark Energy Dynamics with Supernova, Microwave Background and Galaxy Clustering
• More on QCD Ghost Dark Energy
• Generalizing the running vacuum energy model and comparing with the entropic-force models
• Observational constraints on holographic dark energy with varying gravitational constant
• No realistic wormholes from ghost-free scalar-tensor phantom dark energy
• On the Dark Sector Interactions
• Confronting Braneworld Cosmology with Supernova data and Baryon Oscillations
• Observational constraints on phantom-like braneworld cosmologies
• The Beginning and Evolution of the Universe
• Tension and Systematics in the Gold06 SnIa Dataset
• Exploring the Properties of Dark Energy Using Type Ia Supernovae and Other Datasets
• Evolving Newton's Constant, Extended Gravity Theories and SnIa Data Analysis
• Constraints on kinematic models from the latest observational data
• Examining the cosmic acceleration with the latest Union2 supernova data
• Comparison of dark energy models: A perspective from the latest observational data
• Current Observational Constraints to Holographic Dark Energy Model with New Infrared cut-off via Markov Chain Monte Carlo Method
• Cosmological Constraints on the Sign-Changeable Interactions
• Current constraints on interacting holographic dark energy
• Can f(R) Modified Gravity Theories Mimic a LCDM Cosmology?
• Transition from quintessence to phantom phase in quintom model
• Cosmological Applications of Pade Approximant
• A new perspective on Dark Energy modeling via Genetic Algorithms
• A divergence free parametrization of deceleration parameter for scalar field dark energy
• Dynamical behavior of generic quintessence potentials: constraints on key dark energy observables
• Dynamical dark energy with a constant vacuum energy density
• Thermodynamics second law and $\omega =-1$ crossing(s) in interacting holographic dark energy model
• Reconstruction of Hessence Dark Energy and the Latest Type Ia Supernovae Gold Dataset
• A model with interaction of dark components and recent observational data
• Reconstruction of the Scalar-Tensor Lagrangian from a LCDM Background and Noether Symmetry
• A Comparison of Thawing and Freezing Dark Energy Parametrizations
• An overview of what current data can (and cannot yet) say about evolving dark energy
• A model independent null test on the cosmological constant
• Constraining the Anisotropic Expansion of Universe
• Direction Dependence of the Deceleration Parameter
• Phantom behavior via cosmological creation of particles
• Probing kinematics and fate of the Universe with linearly time-varying deceleration parameter
• Pilgrim Dark Energy
• Energy conditions and current acceleration of the universe
• Constraining the Dark Energy Equation of State with HII Galaxies
• Comparison of Standard Ruler and Standard Candle constraints on Dark Energy Models
• Running coupling: Does the coupling between dark energy and dark matter change sign during the cosmological evolution?
• Constraints on reconstructed dark energy model from SN Ia and BAO/CMB observations
• Genetic Algorithms and Supernovae Type Ia Analysis
• The Limits of Extended Quintessence
• A comprehensive comparison of cosmological models from latest observational data
• Cosmography: Supernovae Union2, Baryon Acoustic Oscillation, Observational Hubble Data and Gamma Ray Bursts
• Quintessence reconstructed: new constraints and tracker viability
• Cosmic Equation of state from Strong Gravitational Lensing Systems
• Reconstruction and constraining of the jerk parameter from OHD and SNe Ia observations
• Schwarzschild black hole and the generalized second law in phantom-dominated universe
• Remarks on generalized Gauss-Bonnet dark energy
• Independent cosmological constraints from high-z HII galaxies: new results from VLT-KMOS data
• Updated constraints on $f(T)$ models using direct and indirect measurements of the Hubble parameter
• Independent Cosmological Constraints from high-z HII Galaxies
• Revisit of the Interaction between Holographic Dark Energy and Dark Matter
• Connecting early and late universe by $f(R)$ gravity
• Bayesian analysis of Friedmannless cosmologies
• The bouncing cosmology with $F(R)$ gravity and its reconstructing
• When did cosmic acceleration start? How fast was the transition?
• A model of interacting holographic dark energy at the Ricci's scale
• Could the cosmic acceleration be transient? A cosmographic evaluation
• Observational constraints on the interacting Ricci dark energy model
• How clustering dark energy affects matter perturbations
• Cosmology with moving dark energy and the CMB quadrupole
• Searching for a preferred direction with Union2.1 data
• Holographic Dark Energy Model with Hubble Horizon as an IR Cut-off
• Constraints on Cosmological Models and Reconstructing the Acceleration History of the Universe with Gamma-Ray Burst Distance Indicators
• Holographic f(T)-gravity model with power-law entropy correction
• Dark Energy Evolution and the Curvature of the Universe from Recent Observations
• Generalized Holographic and Ricci Dark Energy Models
• Holographic Ricci dark energy: Interacting model and cosmological constraints
• Observational constraints on a holographic, interacting dark energy model
• Combined constraints on modified Chaplygin gas model from cosmological observed data: Markov Chain Monte Carlo approach
• Revisit of cosmic age problem
• Fitting the Constitution SNIa Data with Redshift Binned Parameterization Method
• Constraints on the generalized Chaplygin gas model including gamma-ray bursts via a Markov Chain Monte Carlo approach
• Comparative analysis of model-independent methods for exploring the nature of dark energy
• Testing the effect of $H_0$ on $f{\sigma }_8$ tension using a Gaussian Process method
• The Hubble diagram extended to z>>1: the gamma-ray properties of GRBs confirm the Lambda-CDM model
• Cosmological constraints combining H(z), CMB shift and SNIa observational data
• Interacting model of new agegraphic dark energy: observational constraints and age problem
• Observational Constraints on Exponential Gravity
• Latest astronomical constraints on some nonlinear parametric dark energy models
• Anisotropy of Cosmic Acceleration
• Observational Constraints to Ricci Dark Energy Model by Using: SN, BAO, OHD, fgas Data Sets
• Probing Dynamics of Dark Energy with Supernova, Galaxy Clustering and the Three-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations
• Crossing the phantom barrier with purely kinetic multiple k-essence
• Massive Photon and Dark Energy
• Classification of dark energy models in the (w_0,w_a) plane
• Cosmological constraints on generalized Chaplygin gas model: Markov Chain Monte Carlo approach
• Cartan symmetries and global dynamical systems analysis in a higher-order modified teleparallel theory
• Revisiting the parametrization of Equation of State of Dark Energy via SNIa Data
• Constraints on Kinematic Model from Recent Cosmic Observations: SN Ia, BAO and Observational Hubble Data
• Probing modified gravity theories with multiple measurements of high-redshift quasars
• Constraining the dark energy models with H(z) data: an approach independent of $H_0$
• Tension in the Recent Type Ia Supernovae Datasets
• Revisiting the Cosmological Constraints on the Interacting Dark Energy Models
• Modified Holographic Dark Energy
• Observational constraints on cosmological models with Chaplygin gas and quadratic equation of state
• Observational constraints on non-minimally coupled Galileon model
• Testing Fractional Action Cosmology
• Bounce cosmology in $f(\mathcal{R})$ gravity
• Constraints on the Holographic Dark Energy Model from Type Ia Supernovae, WMAP7, Baryon Acoustic Oscillation and Redshift-Space Distortion
• A new perspective on the relation between dark energy perturbations and the late-time ISW effect
• Quasi-Rip: A New Type of Rip Model without Cosmic Doomsday
• QCD ghost f(T)-gravity model
• Dynamical dark energy confronted with multiple CMB missions
• Dynamics of holographic vacuum energy in the DGP model
• Reduction of Cosmological Data for the Detection of Time-varying Dark Energy Density
• Comparison of Recent SnIa datasets
• Exploring the Latest Union2 SNIa Dataset by Using Model-Independent Parametrization Methods
• The w = -1 crossing of the quintom model with slowly-varying potentials
• Bright High z SnIa: A Challenge for LCDM?
• Cosmic Constraint to DGP Brane Model: Geometrical and Dynamical Perspectives
• Testing the anisotropy of cosmic acceleration from Pantheon supernovae sample
• New Generalizations of Cosmography Inspired by the Pade Approximant
• Multiple kinetic k-essence, phantom barrier crossing and stability
• Direction Dependent Non-gaussianity in High-z Supernova Data
• Generalized LTB model with Inhomogeneous Isotropic Dark Energy: Observational Constraints
• Supernova light-curve fitters and Dark Energy
• Observational constraint on the varying speed of light theory
• Barotropic fluid compatible parametrizations of dark energy
• Direction Dependence in Supernova Data: Constraining Isotropy
• Direct evidence of acceleration from distance modulus redshift graph
• Observational constraint on the interacting dark energy models including the Sandage-Loeb test
• Two Component Model of Dark Energy
• Cosmological Constraints on Variable Warm Dark Matter
• Probing the dynamical behavior of dark energy
• Assisted dark energy
• Cosmological model of the interaction between dark matter and dark energy
• Observational constraints on new generalized Chaplygin gas model
• A magnified glance into the dark sector: probing cosmological models with strong lensing in A1689
• Tracing the cosmic history by Gauss-Bonnet gravity
• Observational Constraints with Recent Data on the DGP Modified Gravity
• Structure formation on the brane: A mimicry
• Detecting the cosmic acceleration with current data
• Crossing the phantom divide in brane cosmology with curvature corrections and brane-bulk energy transfer
• Cosmological Models and Latest Observational Data
• Cosmological Constant, Fine Structure Constant and Beyond
• Testing an oscillatory behavior of dark energy
• Understanding the origin of CMB constraints on Dark Energy
• Growth Index after the Planck Results
• Galaxy cluster angular size data constraints on dark energy
• A Specific Case of Generalized Einstein-aether Theories
• Notes on interacting holographic dark energy model in a closed universe
• Modified GBIG Scenario as an Alternative for Dark Energy
• High-resolution temporal constraints on the dynamics of dark energy
• Gaugessence: a dark energy model with early time radiation-like equation of state
• Consistency of LCDM with Geometric and Dynamical Probes
• Rip/singularity free cosmology models with bulk viscosity
• Traversable holographic dark energy wormholes constrained by astronomical observations
• Gravitationally influenced particle creation models and late-time cosmic acceleration
• Transient Crossing of Phantom divide line $w_{\Lambda }=-1$ under Gauss-Bonnet interaction
• Asymptotic behavior of w in general quintom model
• Cosmographic Footprints of Dynamical Dark Energy
• Spatial Ricci scalar dark energy model
• Reduced modified Chaplygin gas cosmology
• Does accelerating universe indicates Brans-Dicke theory
• Confronting Tracker Field Quintessence with Data
• Study of parametrized dark energy models with a general non-canonical scalar field
• Cosmological constraints on the generalized holographic dark energy
• Constraints from the CMB temperature and other common observational data-sets on variable dark energy density models
• The unified history of the viscous accelerating universe and phase transitions
• Cosmological constraints on polytropic gas model
• A new parametrization of dark energy equation of state leading to double exponential potential
• Reconstruction of late-time cosmology using Principal Component Analysis
• Crossing the phantom divide line in the Holographic dark energy model in a closed universe
• Observational constraints on unified dark matter including Hubble parameter data
• Holographic dark energy described at the Hubble length
• $f(T)$ non-linear massive gravity and the cosmic acceleration
• Cosmological Constraints on the DGP braneworld model with Gamma-ray bursts
• Crossing the Phantom divide line in the Chaplygin gas model
• A new parametrization for dark energy density and future deceleration
• Observational Evidence for Negative-Energy Dust in Late-Times Cosmology
• Probing the course of cosmic expansion with a combination of observational data
• Thawing quintessence from the inflationary epoch to today
• Cosmological constraints on holographic dark energy models under the energy conditions
• Transient acceleration in $f(T)$ gravity
• Shape of Dark Energy: Constraining Its Evolution with a General Parametrization
• Is gravity getting weaker at low z? Observational evidence and theoretical implications
• Relaxing the Cosmological Constraints on Unparticle Dark Component
• Dark Energy Cosmology with the Alternative Cosmic Microwave Background Data
• Long Gamma-Ray Burst prompt emission properties as a cosmological tool
• First cosmological constraints on the Superfluid Chaplygin gas model
• Smooth crossing of $w_{\Lambda }=-1$ line in a single scalar field model
• Decaying dark energy in light of the latest cosmological dataset
• Observational Constraints on Varying Alpha in $\Lambda (\alpha )$CDM Cosmology
• The interacting generalized Ricci dark energy model in non-flat universe
• Generalizing thawing dark energy models: the standard vis-à-vis model independent diagnostics
• Holographic Λ(t)CDM model in a non-flat universe
• Revisiting dark energy models using differential ages of galaxies
• Observational constraints on electromagnetic Born-Infeld cosmology
• Observational constraints from SNe Ia and Gamma-Ray Bursts on a clumpy universe
• Remarks on generalized scalar-tensor models of dark energy
• Confronting quintessence models with recent high-redshift supernovae data
• Covariance of dark energy parameters and sound speed constraints from large HI surveys
• Constraining deviations from $\Lambda$CDM in the Hubble expansion rate
• New initial condition of the new agegraphic dark energy model
• Effect of low anisotropy on cosmological models by using supernova data
• The universe is accelerating. Do we need a new mass scale?
• Magnetic Field of a Compact Spherical Star under f(R,T) Gravity
• Modified Equations of State for Dark Energy and Observational Limitations
• Age problem in holographic dark energy
• Is the CMB shift parameter connected with the growth of cosmological perturbations?
• High-z Supernova Type Ia Data: non-Gaussianity and Direction Dependence
• Constraints on Dark Energy Models from Weak Gravity Conjecture
• Quantum induced w = -1 crossing of the quintessence and phantom models
• Revisiting CPL with sign-switching density: To cross or not to cross the NECB
• Modelling Time-varying Dark Energy with Constraints from Latest Observations
• Probing Ricci dark energy model with perturbations by using WMAP seven-year cosmic microwave background measurements, BAO and Type Ia supernovae
• Unbiased constraints on the clumpiness of universe from standard candles
• Constraints on the $\Lambda$CDM model with redshift tomography
• Interacting dark energy collapse with matter components separation
• A New Window on Dynamical Dark Energy: Combining DESI-DR2 BAO with future Gravitational Wave Observations
• Cosmological Model-independent Gamma-ray Bursts Calibration and its Cosmological Constraint to Dark Energy
• Constraining dark energy using observational growth rate data
• Time Variable Cosmological Constant from Renormalization Group Equations
• Observational constraints on the unified dark matter and dark energy model based on the quark bag model
• Cosmic constraint on the unified model of dark sectors with or without a cosmic string fluid in the varying gravitational constant theory
• Genetic algorithms and the analysis of SnIa data
• Testing the Consistence of Gamma Ray Burst Data-set and Supernovae Union2
• Considering Late-Time Acceleration in some Cosmological Models
• The torsion cosmology in Kaluza-Klein theory
• Brane cosmology from observational surveys and its comparison with standard FRW cosmology
• Cosmological Study in Myrzakulov $F(R,T)$ Quasi-dilaton Massive Gravity
• Holographic Dark Energy with Curvature
• Updated reduced CMB data and constraints on cosmological parameters
• Possible black universes in a brane world
• Observational constraints on a Yang-Mills condensate dark energy model
• Generalized particle dynamics in anti de Sitter spaces: A source for dark energy
• Comparison of Supernovae datasets Constraints on Dark Energy
• Gauss-Bonnet Braneworld Cosmology with Modified Induced Gravity on the Brane
• Latest Cosmological Constraints on Cardassian expansion models including the updated Gamma-ray bursts
• Accelerating Universe: Observational Status and Theoretical Implications
• Exact Solutions and Constraints on the Dark Energy Model in FRW Universe
• A unification of RDE model and XCDM model
• Reconstructing f(R) model from Holographic DE: Using the observational evidence
• Dark aspects of massive spinor electrodynamics
• Cosmic Acceleration Data and Bulk-Brane Energy Exchange
• To CPL, or not to CPL? What we have not learned about the dark energy equation of state
• Cosmological constraints from supernova data set with corrected redshift
• Results from Hubble parameter data: oscillating dark energy?
• Cosmological constraints on the big bang quantum cosmology model
• Inference of cosmological models with principal component analysis
• Cosmology of Quasi-Dilaton Massive Gravity with Non-minimal Kinetic Coupling
• Cosmological Constraints on the DGP Model in light of DESI DR2 2025 Data
• Cosmological aspects of cubic Galileon massive gravity