Non-linear Matter Spectrum for a Variable Equation of State

Details Non-linear Matter Spectrum for a Variable Equation of State Non-linear Matter Spectrum for a Variable Equation of State

2010-02-17

arxiv.org/abs/1002.3277v1

JCAP 1101:024,2011

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

9 pages, 5 figures

Scientific paper

10.1088/1475-7516/2011/01/024

We study the growth of matter perturbations beyond the linear level in cosmologies in which the dark energy has a variable equation of state. The non-linear corrections result in shifts in the positions of the maximum, minima and nodes of the spectrum within the range of Baryon Acoustic Oscillations. These can be used in order to distinguish theories with different late-time variability of the equation of state.

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