High-Redshift Cosmography

Abstract

We constrain the parameters describing the kinematical state of the universe using a cosmographic approach, which is fundamental in that it requires a very minimal set of assumptions (namely to specify a metric) and does not rely on the dynamical equations for gravity. On the data side, we consider the most recent compilations of Supernovae and Gamma Ray Bursts catalogues. This allows to further extend the cosmographic fit up to $z=6.6$, i.e. up to redshift for which one could start to resolve the low z degeneracy among competing cosmological models. In order to reliably control the cosmographic approach at high redshifts, we adopt the expansion in the improved parameter $y=z/(1+z)$. This series has the great advantage to hold also for $z>1$ and hence it is the appropriate tool for handling data including non-nearby distance indicators. We find that Gamma Ray Bursts, probing higher redshifts than Supernovae, have constraining power and do require (and statistically allow) a cosmographic expansion at higher order than Supernovae alone. Exploiting the set of data from Union and GRBs catalogues, we show (for the first time in a purely cosmographic approach parametrized by deceleration $q_0$, jerk $j_0$, snap $s_0$) a definitively negative deceleration parameter $q_0$ up to the 3$\sigma$ confidence level. We present also forecasts for realistic data sets that are likely to be obtained in the next few years.

16 pages, 6 figures, 3 tables. Improved version matching the published one, additional comments and references

References in corpus (19)

• New Hubble Space Telescope Discoveries of Type Ia Supernovae at z > 1: Narrowing Constraints on the Early Behavior of Dark Energy
• Improved Cosmological Constraints from New, Old and Combined Supernova Datasets
• Improved Dark Energy Constraints from ~100 New CfA Supernova Type Ia Light Curves
• The Hubble Diagram to Redshift >6 from 69 Gamma-Ray Bursts
• A kinematical approach to dark energy studies
• Cosmic dynamics in the era of Extremely Large Telescopes
• Dark Energy versus Modified Gravity
• The Hubble series: Convergence properties and redshift variables
• Dark energy and curvature from a future baryonic acoustic oscillation survey using the Lyman-alpha forest
• First-year Sloan Digital Sky Survey-II (SDSS-II) supernova results: consistency and constraints with other intermediate-redshift datasets
• Cosmographic Hubble fits to the supernova data
• Probing the cosmographic parameters to distinguish between dark energy and modified gravity models
• Testable dark energy predictions from current data
• Early Dark Energy at High Redshifts: Status and Perspectives
• Tension in the Recent Type Ia Supernovae Datasets
• Constraining the dark fluid
• Extending the Hubble diagram by gamma ray bursts
• Cosmography: Extracting the Hubble series from the supernova data
• Long Gamma-Ray Burst prompt emission properties as a cosmological tool

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