Could the cosmic acceleration be transient? A cosmographic evaluation

Abstract

A possible slowing down of the cosmic expansion is investigated through a cosmographic approach. By expanding the luminosity distance to fourth order and fitting the SN Ia data from the most recent compilations (Union, Constitution and Union 2), the marginal likelihood distributions for the deceleration parameter today suggest a recent reduction of the cosmic acceleration and indicate that there is a considerable probability for $q_0>0$. Also in contrast to the prediction of the $\Lambda$CDM model, the cosmographic $q(z)$ reconstruction permits a cosmic expansion history where the cosmic acceleration could already have peaked and be presently slowing down, which would imply that the recent accelerated expansion of the Universe is a transient phenomenon. It is also shown that to describe a transient acceleration the luminosity distance needs to be expanded at least to fourth order. The present cosmographic results depend neither on the validity of general relativity nor on the matter-energy contents of the Universe.

11 pages, 4 figures. Accepted for publication in Classical and Quantum Gravity

References in corpus (52)

• Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
• Measurements of Omega and Lambda from 42 High-Redshift Supernovae
• Dynamics of dark energy
• 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 Constant - the Weight of the Vacuum
• Discovery of a Supernova Explosion at Half the Age of the Universe and its Cosmological Implications
• Dark Energy and the Accelerating Universe
• Improved Cosmological Constraints from New, Old and Combined Supernova Datasets
• Spectra and Light Curves of Six Type Ia Supernovae at 0.511 < z < 1.12 and the Union2 Compilation
• Improved Dark Energy Constraints from ~100 New CfA Supernova Type Ia Light Curves
• Braneworld models of dark energy
• Jerk, snap, and the cosmological equation of state
• Dark Energy from structure: a status report
• Comparison of the Legacy and Gold SnIa Dataset Constraints on Dark Energy Models
• Cosmography: Cosmology without the Einstein equations
• A kinematical approach to dark energy studies
• String Theory and Quintessence
• Reconstruction of the deceleration parameter and the equation of state of dark energy
• Is cosmic acceleration slowing down?
• Kinematic Constraints to the Transition Redshift from SNe Ia Union Data
• Transition Redshift: New Kinematic Constraints from Supernovae
• The Hubble series: Convergence properties and redshift variables
• Do SNe Ia Provide Direct Evidence for Past Deceleration of the Universe?
• What Do We Really Know About Cosmic Acceleration?
• Primordial features due to a step in the inflaton potential
• Alternative Dark Energy Models: An Overview
• Cosmographic Hubble fits to the supernova data
• Supergravity, Dark Energy and the Fate of the Universe
• Scalar-field-dominated cosmology with a transient accelerating phase
• High-Redshift Cosmography
• Examining the cosmic acceleration with the latest Union2 supernova data
• Cosmographic evaluation of deceleration parameter using SNe Ia data
• Can dark energy be decaying?
• A Two-Field Quintessence Model
• Can the Universe escape eternal acceleration?
• Bayesian analysis of Friedmannless cosmologies
• Statistical methods in cosmology
• Bayesian Analysis and Constraints on Kinematic Models from Union SNIa
• Transient Accelerated Expansion and Double Quintessence
• Transient cosmic acceleration from interacting fluids
• Quintessence, Cosmological Horizons, and Self-Tuning
• Dark Energy and the Fate of the Universe
• Brane assisted quintessential inflation with transient acceleration
• Stable Gravastars of Anisotropic Dark Energy
• Early and Late Transient Cosmic Acceleration due to Curvature Inspired Dark Energy
• Cosmic acceleration and extra dimensions: constraints on modifications of the Friedmann equation
• Probing the course of cosmic expansion with a combination of observational data
• "Expansion" around the vacuum: how far can we go from Lambda?
• Bayesian model-independent evaluation of expansion rates of the universe
• Is the present cosmic expansion decelerating?
• Transient cosmic acceleration

Cited by in corpus (48)

• Cosmological Evolution With Interaction Between Dark Energy And Dark Matter
• Cosmographic analysis of the equation of state of the universe through Padé approximations
• Expansion History with Decaying Vacuum: A Complete Cosmological Scenario
• Cosmographic analysis with Chebyshev polynomials
• Three thermodynamically-based parametrizations of the deceleration parameter
• New Cosmic Accelerating Scenario without Dark Energy
• Statefinder diagnostic and stability of modified gravity consistent with holographic and new agegraphic dark energy
• Cosmography beyond standard candles and rulers
• A third alternative to explain recent observations: Future deceleration
• Post-Newtonian parameters gamma and beta of scalar-tensor gravity with a general potential
• Peculiar motions, accelerated expansion and the cosmological axis
• The transient acceleration from time-dependent interacting dark energy models
• Quantifying the evidence for the current speed-up of the Universe with low and intermediate-redshift data. A more model-independent approach
• A complete cosmic scenario from inflation to late time acceleration: Non-equilibrium thermodynamics in the context of particle creation
• Conformally Friedmann-Lemaitre-Robertson-Walker cosmologies
• Cosmological Hysteresis and the Cyclic Universe
• Euclid: constraining dark energy coupled to electromagnetism using astrophysical and laboratory data
• BAO cosmography
• Detecting the cosmic acceleration with current data
• Will there be future deceleration? A study of particle creation mechanism in non-equilibrium thermodynamics
• Violation of the FRW consistency condition as a signature of backreaction
• Scalar-tensor cosmologies with a potential in the general relativity limit: time evolution
• Reconstructing the History of Energy Condition Violation from Observational Data
• Cosmic slowing down of acceleration using $f_{gas}$
• Testing cosmic acceleration for $w(z)$ parameterizations using $f_{gas}$ measurements in galaxy clusters
• Gravitationally influenced particle creation models and late-time cosmic acceleration
• Scalar-tensor cosmologies with dust matter in the general relativity limit
• Machine Learning and cosmographic reconstructions of quintessence and the Swampland conjectures
• Perturbations for transient acceleration
• A new parametrization for dark energy density and future deceleration
• Expanding Universe: slowdown or speedup?
• Transient acceleration in $f(T)$ gravity
• Revisiting cosmic acceleration with DESI BAO
• Can the Universe decelerate in the future?
• Constraints On Dark Energy Models From Galaxy Clusters and Gravitational Lensing Data
• Extended Uncertainty Principle: A Deeper Insight into the Hubble Tension?
• Cosmology In Terms Of The Deceleration Parameter. Part II
• Re-examining the role of curvature in the slowing down acceleration scenario
• Interactions in the dark sector of the Universe
• Do current observations support transient acceleration of our universe?
• Dynamical evolution of quintessence cosmology in a physical phase space
• Evolving Cosmic Scenario in Modified Chaplygin Gas with Adiabatic Matter Creation
• Particle Production and Universal Thermodynamics
• Extended Metastable Dark Energy
• Cosmic acceleration a new review
• A class of transient acceleration models consistent with Big Bang Cosmology
• Observational effects of the early episodically dominating dark energy
• 100 Years of Relativistic Cosmology (1917-2017). Part I: From Origins to the Discovery of Universal Expansion (1929)