# Cosmography and constraints on the equation of state of the Universe in various parametrizations

@article{Aviles2012CosmographyAC,
title={Cosmography and constraints on the equation of state of the Universe in various parametrizations},
author={Alejandro Aviles and Christine Gruber and Orlando Luongo and Hernando Quevedo},
journal={Physical Review D},
year={2012},
volume={86},
pages={123516}
}
• Published 9 April 2012
• Physics
• Physical Review D
We use cosmography to present constraints on the kinematics of the Universe, without postulating any underlying theoretical model. To this end, we use a Monte Carlo Markov Chain analysis to perform comparisons to the supernova Ia Union 2 compilation, combined with the Hubble Space Telescope measurements of the Hubble constant, and the Hubble parameter datasets. We introduce a sixth order cosmographic parameter and show that it does not enlarge considerably the posterior distribution when…
144 Citations

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