English

Forecasting cosmological constraints from age of high-z galaxies

Cosmology and Nongalactic Astrophysics 2013-12-30 v2 General Relativity and Quantum Cosmology

Abstract

We perform Monte Carlo simulations based on current age estimates of high-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 CPL and its uncorrelated form and calculate the improvements on the figure of merit for both cases. Although there is a clear dependence of the FoM with the size and accuracy of the synthetic age samples, we find that the most substantial gain in FoM comes from a joint analysis involving age and baryon acoustic oscillation data.

Keywords

Cite

@article{arxiv.1308.6230,
  title  = {Forecasting cosmological constraints from age of high-z galaxies},
  author = {C. A. P. Bengaly and M. A. Dantas and J. C. Carvalho and J. S. Alcaniz},
  journal= {arXiv preprint arXiv:1308.6230},
  year   = {2013}
}

Comments

4 pages, 13 figures, latex