Cosmography and cosmic acceleration

Details Cosmography and cosmic acceleration Cosmography and cosmic acceleration

2011-02-25

arxiv.org/abs/1102.5319v1

Monthly Notices of the Royal Astronomical Society, 418: 1873--1877 (2011)

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

5 pages. 4 figures, LaTeX

Scientific paper

10.1111/j.1365-2966.2011.19603.x

We investigate the prospects for determining the accelerating history of the Universe from upcoming measurements of the expansion rate $H(z)$. In our analyses, we use Monte Carlo simulations based on $w$CDM models to generate samples with different characteristics and calculate the evolution of the deceleration parameter $q(z)$. We show that a cosmographic (and, therefore, model-independent) evidence for cosmic acceleration ($q(z

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