Raising the bar: new constraints on the Hubble parameter with cosmic chronometers at z2
arXiv:1503.01116 · doi:10.1093/mnrasl/slv037
Abstract
One of the most compelling tasks of modern cosmology is to constrain the expansion history of the Universe, since this measurement can give insights on the nature of dark energy and help to estimate cosmological parameters. In this letter are presented two new measurements of the Hubble parameter H(z) obtained with the cosmic chronometer method up to . Taking advantage of near-infrared spectroscopy of the few very massive and passive galaxies observed at available in literature, the differential evolution of this population is estimated and calibrated with different stellar population synthesis models to constrain H(z), including in the final error budget all possible sources of systematic uncertainties (star formation history, stellar metallicity, model dependencies). This analysis is able to extend significantly the redshift range coverage with respect to present-day constraints, crossing for the first time the limit at . The new H(z) data are used to estimate the gain in accuracy on cosmological parameters with respect to previous measurements in two cosmological models, finding a small but detectable improvement (5 %) in particular on and . Finally, a simulation of a Euclid-like survey has been performed to forecast the expected improvement with future data. The provided constraints have been obtained just with the cosmic chronometers approach, without any additional data, and the results show the high potentiality of this method to constrain the expansion history of the Universe at these redshifts.
arXiv comment5 pages, 4 figures. Accepted for publication as MNRAS letter. The H(z) data can be downloaded at http://www.physics-astronomy.unibo.it/en/research/areas/astrophysics/cosmology-with-cosmic-chronometers
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- Posing Constraints on the Free Parameters of a New Model of Dark Energy EoS : Responses Through Cosmological Behaviours
- Coupled Quintessence scalar field model in light of observational datasets
- Tensions in cosmology: a discussion of statistical tools to determine inconsistencies
- Constraints on Cosmological Models with Gamma-Ray Bursts in Cosmology-Independent Way
- Reconstruction of the dark energy scalar field potential by Gaussian process
- Exploring Modified Gravity: Constraints on the and Parametrization with WMAP, ACT, and SPT
- Stable gravity model through non-trivial connection
- Deep Learning and genetic algorithms for cosmological Bayesian inference speed-up
- Simultaneous measurements on cosmic curvature and opacity using latest HII regions and observations
- Model-independent determination of cosmic curvature based on Padé approximation
- Statistical analysis with cosmic-expansion-rate measurements and two-point diagnostics
- What if the universe expands linearly? A local general relativity to solve the "zero active mass" problem
- Late-time dynamics of dark energy EoS in symmetric teleparallel gravity
- Unveiling the Universe with Emerging Cosmological Probes
- Observational constraints on the growth index parameters in gravity
- A More Accurate and Competitive Estimative of in Intermediate Redshifts
- Cosmological joint analysis with cosmic growth and expansion rate
- Analysis cosmological tachyon and fermion model and observation data constraints
- Thawing k-essence dark energy in the PAge space
- Dynamics of dark energy in a scalar-vector-torsion theory
- Examining the validity of the minimal varying speed of light model through cosmological observations: relaxing the null curvature constraint
- Investigating the CDM Model with Latest DESI BAO Observations
- Beyond CDM: Exploring a Dynamical Cosmological Constant Framework Consistent with Late-Time Observations
- Multiple measurements on the cosmic curvature using Gaussian process regression without calibration and a cosmological model
- A possible role for the merger of clusters/voids in the cosmological expansion
- A comprehensive data-driven odyssey to explore the equation of state of dark energy
- Addressing the Tension using Late-Time Observational Measurements in a Novel deceleration Parametrization
- Phase-space analysis of torsion-coupled dilatonic ghost condensate
- Faster Bayesian inference with neural network bundles and new results for models
- Cosmological constraints on -corrected Appleby-Battye model
- Revisiting kink-like parametrization and constraints using OHD/Pantheon+/BAO samples
- Model-independent Gamma-Ray Bursts Constraints on Cosmological Models Using Machine Learning
- A new parametrization of Hubble function and Hubble tension
- Cosmological Dynamics in Interacting Scalar-Torsion f(T,) Gravity: Investigating Energy and Momentum Couplings
- Endowing with a dynamic nature: constraints in a spatially curved Universe
- Constraints on Spatial Curvature and Dark Energy Dynamics in the CDM Model from DESI DR1 and DR2
- Investigating the cosmic distance duality relation with gamma-ray bursts
- Comparing Dark Energy models with Hubble versus Growth Rate data
- From Barthel Randers Kropina Geometries to the Accelerating Universe: A Brief Review of Recent Advances in Finslerian Cosmology
- Scalar field dark energy: Insights into cosmological evolution and black hole accretion
- Cosmological constant constraints from observation-derived energy condition bounds and their application to bimetric massive gravity
- Observational constraints on Tsallis holographic dark energy with Ricci horizon cutoff
- A New Parameterized Interacting Holographic Dark Energy
- Cosmology of fermionic dark energy coupled to curvature
- Eternal vs singular observers in interacting dark energy-dark matter models
- Quintessence scalar field and cosmological constant: Dynamics of a multi-component dark energy model
- Thermodynamics of Modified Chaplygin-Jacobi Gas and Modified Chaplygin-Abel Gas: Stability Analysis and Observational Constraints
- Observational constraints using Bayesian statistics and Deep Learning in gravity
- High precision measurement of cosmic curvature: from gravitational waves and cosmic chronometer
- Fine Tuning Problem of the Cosmological Constant in a Generalized Randall-Sundrum Model
- Cosmic curvature on large-scale structures with homogeneous dark energy
- Accelerating behavior from dynamical system analysis parameters
- Testing Lambert equation of state with observational Hubble parameter data
- Impact of dark energy on the equation of state in light of the latest cosmological data
- Gamma-Ray Bursts Calibrated from the Observational Data in Artificial Neural Network Framework
- Reconstruction of the scalar field potential in nonmetricity gravity through Gaussian processes
- Tsallis holographic dark energy model with event horizon cutoff in modified gravity
- What Prevents Resolving the Hubble Tension through Late-Time Expansion Modifications?
- Barrow holographic dark energy interacting model in the presence of radiation and matter
- Observational Constraints on the Parameters of Hořava-Lifshitz Gravity
- Holography and matter creation revisited
- Reconstruction of energy conditions from observations and implications for extended theories of gravity
- When Dark Matter Heats Up: A Model-Independent Search for Non-Cold Behavior
- Performance of Non-Parametric Reconstruction Techniques in the Late-Time Universe
- Lyra's cosmology of homogeneous and isotropic universe in Brans-Dicke theory
- Exploring the Evolution of Nonlinear Electrodynamics in the Universe: A Dynamical Systems Approach
- The constraint ability of Hubble parameter by gravitational wave standard sirens on cosmological parameters
- Gravitational baryogenesis in gravity
- Implications of Dynamical Dark Energy in the expansion of the Universe and the Structure Formation
- Structure Formation in Dark Matter Particle Production Cosmology
- Exploring the deviation of cosmological constant by a generalized pressure dark energy model
- WIMP dark matter in bulk viscous non-standard cosmologies
- Reconstructions of Einstein-Aether Gravity from Barrow Agegraphic and New Barrow Agegraphic Dark Energy models: Examinations and Observational Limits
- Globular clusters as cosmic clocks: new cosmological hints from their integrated light
- Resolution of cosmological singularity in Hořava-Lifshitz cosmology
- Dynamical Oscillations in Dark Energy: Joint Constraints on the CDM Model from DESI, OHD, and Supernova Samples
- Beyond Fisher Forecasting for Cosmology
- Novel Cosmological Joint Constraints in Multidimensional Observables Space with Redshift-free Inferences
- Effect of Peak Absolute Magnitude of Type Ia Supernovae and Sound Horizon Values on Hubble Tension using DESI results
- Equivalence of Dark Energy Models: A Theoretical and Bayesian Perspective
- Constraints on Tsallis cosmology using recent low and high redshift measurements
- FIMP Dark Matter in bulk viscous non-standard cosmologies
- Late Time Phenomena in Gravity Framework: Role of Priors
- Cosmic expansion beyond CDM: Investigating power-law and logarithmic corrections
- Stringent constraint on the CCC+TL cosmology with Measurements
- periodic cosmology
- Hubble Tension and Dark Energy in Teleparallel Gauss-Bonnet Gravity: New Constraints from DESI BAO, Pantheon and Hubble Data
- Accelerating Universe in Higher Dimensional Space Time : an alternative approach
- Anisotropic cosmology using observational datasets: exploring via machine learning approaches
- Gravitational Lensing of Dark Energy Models and CDM Using Observational data in Loop Quantum Cosmology
- Quintessence and tachyon dark energy in interaction with dark matter: Observational constraints and model selection
- ParamANN: A Neural Network to Estimate Cosmological Parameters for CDM Universe Using Hubble Measurements
- Constraining the swiss-cheese IR-fixed point cosmology with cosmic expansion
- Is Dark Energy Changing? Probing the Universe's Expansion with present and future astronomical probes
- Anisotropic cosmology in Bumblebee gravity theory
- On the Field Theoretical Description of an Alternative Model to Generalized Chaplygin Gas and its Thermodynamic Behaviour
- Observational constraints on cosmological parameters in the Bianchi type III Universe with f(R,T) gravity theory
- Probing the independence within the dark sector in the fluid approximation
- Role of Spatial Curvature in a Dark Energy Interacting Model
- Observational tests of the conformal osculating Barthel-Kropina cosmological model
- New measurement at Redshift = 0.12 with DESI Data Release 1
- Dynamical Dark Energy Signatures from a New Transition Parametrization in Flat FLRW Cosmology
- Testing Exponential Gravity with CMB, DESI-DR2, and Supernova Data
- A Review on Resolving the Hubble Tension via Late-Universe Physics
- Derivative hierarchy as the origin of kernel-dependent trends in Gaussian process reconstructions of the hubble parameter
- Gamma-Ray Bursts Calibrated by Using Artificial Neural Networks from the Pantheon+ Sample
- Barboza-Alcaniz Equation of State Parametrization : Constraining the Parameters in Different Gravity Theories
- A pressure parametric dark energy model
- Observational constraints on thawing quintessence scalar field model
- Constraining Axially Symmetric Bianchi Type I Model with Self-Consistent Recombination History and Observables
- Investigating the compatibility of exact solutions in Weyl-type gravity with observational data
- Time to Sparkler. Accurate ages of lensed globular clusters at with JWST photometry
- Mimetic Tensor-Vector-Scalar Cosmology: Incorporating Dark Matter, Dark Energy and Stiff Matter
- Mimicking the CDM Universe through inhomogeneous space-time
- Estimating Cosmological Parameters and Reconstructing Hubble Constant with Artificial Neural Networks: A Test with covariance matrix and mock H(z)
- Unimodular Theory of Gravity in Light of the Latest Cosmological Data
- Model-independent reconstruction of the cosmological scale factor as a function of lookback time
- Reconstructing cosmic evolution with a density parametrization
- On Direct Estimation of Density Parameters and Hubble Constant for CDM Universe using Hubble Measurements
- Testing the Constancy of Type Ia Supernova Luminosities with Gaussian Process
- Ricci cosmology in light of astronomical data
- Strengthening interacting agegraphic dark energy DGP constraints with local measurements and multimessenger forecastings
- Observational constraints on the free parameters of an interacting Bose-Einstein gas as a dark-energy model
- Quintessence dark energy model in non-linear theory with bulk-viscosity
- Towards a Machine Learning Solution for Hubble Tension: Physics-Informed Neural Network (PINN) Analysis of Tsallis Holographic Dark Energy in Presence of Neutrinos
- Can dark energy explain a high growth index?
- Inference of cosmological models with principal component analysis
- Cosmological constraints on the big bang quantum cosmology model
- Observational Constraints on Chaplygin Gas Models in Non-Minimally Coupled Power Law Gravity with Quasars
- Cosmic Acceleration Caused by the Extra-Dimensional Evolution in a Generalized Randall-Sundrum Model
- Cosmology in energy-momentum squared symmetric teleparallel gravity
- Compact Objects in 4D Einstein Gauss Bonnet Gravity A Data Based Perspective
- Is Dark Energy Increasing or Decreasing in the Late Universe?
- Reconstruction of Tsallis Holographic Dark Energy via Modified Non-Metric Gravity: An Approach
- Low-redshift tests of Newtonian cosmologies with a time-varying gravitational constant
- Cosmological Dynamics of Exponential Quintessence Constrained by BAO, Cosmic Chronometers, and DES-SN5YR/Pantheon+ Data
- Kinematical models of latetime cosmology and the statefinder diagnostic
- Observational constraints on Luciano-Saridakis entropic cosmology
- Some Classes of Interacting Two-Fluid Model of the Expanding Universe
- Confronting Einstein Yang Mills Higgs Dark Energy in light of observations
- Induced cosmological anisotropy by a gauge-gravity interaction
- The cosmological Mass Varying Neutrino model in the late universe
- An Alternative Approach to the Exact Solution of FRW-Type Spacetime with a Generalized Chaplygin Gas
- Observational Constraints and Geometric Diagnostics of Barboza-Alcaniz and Logarithmic Dark Energy Parametrizations
- No preference for generalized emergent dark energy from current cosmological data
- Late-time cosmological constraints on three holographic dark energy models with DESI DR2 BAO and Type Ia supernovae
- Testing the CCC+TL cosmology with cosmic-chronometer measurements of the Hubble parameter
- Metric Variation of the Energy-Momentum Tensor of a Perfect Fluid and Its Applications to Cosmology and Neutron Stars
- A Combined Barrow Entropy and QCD Ghost Mechanism for Late-Time Cosmic Acceleration
- Cosmic chronometers with galaxy clusters: a new avenue for multi-probe cosmology
- Constraints on AvERA Cosmologies from Cosmic Chronometers and Type Ia Supernovae
- Nature-inspired optimization, the Philippine Eagle, and cosmological parameter estimation
- Probing the Hubble Tension with an Infinite-Future Condition on the Hubble Parameter
- Yano-Schrödinger Hyperfluid: Cosmological Implications
- Is Dark Energy an Effective Manifestation of Non-equilibrium Thermodynamics? -- Insights from DESI
- Bayesian and Machine-Learning Analyses of Nonminimal Gravity and Tension
- A Spectrum of Cosmological Rips and Their Observational Signatures
- Model-independent reconstruction of cosmic thermodynamics and dark energy dynamics
- -- interacting scalar tensor dark energy
- Geometric formulation of -essence and late-time acceleration
- Testing the cosmic distance duality relation using model-independent approach
- Dust matter cosmology in modified symmetric teleparallel gravity
- Background dynamics and observational constraints of flat and non-flat CDM models from and DESI DR2 BAO measurements
- Has the density of sources of gamma-ray burts been constant over the last ten billion years ?
- Revisiting the Hubble Tension with DESI DR2 Baryon Acoustic Oscillation Observations and Machine Learning Methods
- Running Einstein Constant and a Possible Vacuum State of the Universe
- FLRW Kinematic-Induced Measurement of the Hubble Constant from Cosmic Chronometer and Redshift Drift Observations
- Exploring the constraints on cosmological models with CosmoEJS
- On the energy flow of in Hořava-Lifshitz cosmology
- Serial Acceleration-Deceleration Transitions in a Cyclic Universe with Negative Curvature
- Optimizing Gaussian Process Kernels Using Nested Sampling and ABC Rejection for H(z) Reconstruction
- Late-Time Cosmic Acceleration from QCD Confinement Dynamics
- Constraining the Hubble Constant with a Simulated Full Covariance Matrix Using Neural Networks
- Implications of a high growth index on the variation of
- Genetic algorithm demystified for cosmological parameter estimation
- Energy conditions and entropy density of the universe
- EFT of Dark Energy with Cosmic Chronometers: Reconstructing Background EFT Functions
- The model-independent degeneracy-breaking point in cosmological models with interacting Dark Energy and Dark Matter
- A comparative study of emergent dark energy models
- Cosmic Dynamics in Einstein-Cartan Theory: Analysing Hubble Tension through Curvature and Torsion field
- Constraints on the Modified Emergent Dark Energy Model Using DESI DR2 BAO