Observational Constraints on Hybrid Scale Factor in f(Q,T) Gravity with Anisotropic Space-Time
arXiv:2306.14502 · doi:10.1002/andp.202300161
Abstract
In this paper, we present an accelerating cosmological model by constraining the free parameters using the cosmological datasets in an extended symmetric teleparallel gravity for the flat and anisotropic space-time. We employ a time variable deceleration parameter that behaves early deceleration and late time acceleration in the form of Hybrid Scale Factor (HSF). We obtain the present values of deceleration parameter and analyse the late time behavior of the Universe based on the best-fit values of free parameters. We derive the dynamical parameters of the model and obtain the equation of state parameter at present in the quintessence region; however at late time it approaches to CDM. The energy conditions are also analysed to validate the modified gravity and we find that strong energy condition is violating. We establish the importance of hybrid scale factor in the late time cosmic phenomena issue.
arXiv commentAnnalen Der Physik published version
References in corpus (68)
- Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
- emcee: The MCMC Hammer
- The Complete Light-curve Sample of Spectroscopically Confirmed Type Ia Supernovae from Pan-STARRS1 and Cosmological Constraints from The Combined Pantheon Sample
- Baryon Acoustic Oscillations in the Sloan Digital Sky Survey Data Release 7 Galaxy Sample
- Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Data Processing, Sky Maps, and Basic Results
- The Pantheon+ Analysis: Cosmological Constraints
- Hybrid Inflation
- Can the dark energy equation-of-state parameter w be less than -1?
- Raising the bar: new constraints on the Hubble parameter with cosmic chronometers at z2
- The WiggleZ Dark Energy Survey: mapping the distance-redshift relation with baryon acoustic oscillations
- Three-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Temperature Analysis
- Coincident General Relativity
- First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Angular Power Spectrum
- Cosmology in geometry
- gravity
- Observational constraints of gravity
- Extended Gravity Cosmography
- Coupling matter in modified -gravity
- Hubble parameter measurement constraints on the redshift of the deceleration-acceleration transition, dynamical dark energy, and space curvature
- Hubble Parameter and Baryon Acoustic Oscillation Measurement Constraints on the Hubble Constant, the Deviation from the Spatially-Flat cdm Model, The Deceleration-Acceleration Transition Redshift, and Spatial Curvature
- First evidence that non-metricity f(Q) gravity could challenge CDM
- Evidence of vorticity and shear at large angular scales in the WMAP data: a violation of cosmological isotropy?
- Correcting Type Ia Supernova Distances for Selection Biases and Contamination in Photometrically Identified Samples
- From cosmic deceleration to acceleration: new constraints from SN Ia and BAO/CMB
- Signatures of -gravity in cosmology
- Reconstruction of the deceleration parameter and the equation of state of dark energy
- Bouncing Cosmology in f(Q) Symmetric Teleparallel Gravity
- Cosmic Microwave Background Quadrupole and Ellipsoidal Universe
- Cosmographic bounds on the cosmological deceleration-acceleration transition redshift in gravity
- Ellipsoidal Universe Can Solve The CMB Quadrupole Problem
- Cosmology with hybrid expansion law: scalar field reconstruction of cosmic history and observational constraints
- Spherically symmetric configuration in gravity
- How Anisotropic is our Universe?
- Polarization of gravitational waves in symmetric teleparallel theories of gravity and their modifications
- Anisotropic nature of space-time in gravity
- Propagation of gravitational waves in symmetric teleparallel gravity theories
- Cosmological Perturbation Theory in Gravity
- Matter Bounce Scenario and the Dynamical aspects in f(Q,T) Gravity
- Dynamical system analysis for accelerating models in non-metricity gravity
- Cosmological Inflation in f(Q, T) Gravity
- Physics in the Real Universe: Time and Spacetime
- Bianchi Type VII_h Models and the WMAP 3-year Data
- Fast and Efficient Template Fitting of Deterministic Anisotropic Cosmological Models Applied to WMAP Data
- Late-time acceleration in gravity: Analysis and constraints in an anisotropic background
- Fitting gravity models with a CDM limit using H(z) and Pantheon data
- Reconstructing isotropic and anisotropic cosmologies
- Viscous Bianchi type I universes in brane cosmology
- Anisotropic dark energy model with a hybrid scale factor
- Accelerating dark energy models in bianchi Type-V space-time
- Cosmological models with a hybrid scale factor in an extended gravity theory
- FRW Cosmology in Gravity
- Deep Learning for space-variant deconvolution in galaxy surveys
- Model parameters in the context of late time cosmic acceleration in gravity
- Current Constraints on Anisotropic and Isotropic Dark Energy Models
- Accelerating Universe scenario in anisotropic cosmology
- Bulk viscous embedded hybrid dark energy models
- Rip cosmological models in extended symmetric teleparallel gravity
- Thermodynamical aspects of Bianchi type-I Universe in quadratic form of gravity and observational constraints
- Probing Dark Energy in The scope of Bianchi type I Spacetime
- Quintessence Universe and cosmic acceleration in gravity
- Constraining the anisotropy of the Universe via Pantheon supernovae sample
- First measurement of the Hubble parameter from bright binary black hole GW190521
- Transit cosmological models with observational constraints in f(Q, T) gravity
- Viscous Dark Energy In Bianchi Type V Space-Time
- Anisotropic Universe in gravity, a novel study
- Theoretic Limits on the Equation of State Parameter of Quintessence
- Constraints On Dark Energy Models From Galaxy Clusters and Gravitational Lensing Data
- Supersymmetric hybrid inflation with non-minimal coupling to gravity