Forecasting cosmological constraints from age of high-z galaxies - INSPIRE

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Forecasting cosmological constraints from age of high-z galaxies

C.A.P. Bengaly, Jr.
(
- Rio de Janeiro Observ.
)
,
M.A. Dantas
(
- UERN, Mossoro
)
,
J.C. Carvalho
(
- Rio de Janeiro Observ. and
- Rio Grande do Norte U.
)
,
J.S. Alcaniz
(
- Rio de Janeiro Observ.
)

Aug 28, 2013

4 pages

Published in:

Astron.Astrophys. 561 (2014) A44

Published: Dec 23, 2013

e-Print:

1308.6230 [astro-ph.CO]

DOI:

10.1051/0004-6361/201322475

View in:

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Abstract: (EDP Sciences)

We perform Monte Carlo simulations based on current age estimates ofhigh-z objects to forecast constraints on the equation of state (EoS)of the dark energy. In our analysis, we use two different EoS parameterizations, namely,the so-called Chevallier-Polarski-Linder (CPL) and its uncorrelated form, and calculatethe improvements on the figure of merit (FoM) for both cases. Although there is a cleardependence of the FoM with the size and accuracy of the synthetic age samples, we findthat the most substantial gain in FoM comes from a joint analysis involving age and baryonacoustic oscillation data.

Note:

4 pages, 13 figures, latex

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Figures(13)

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