High precision spectra at large redshift for dynamical DE cosmologies

Details High precision spectra at large redshift for dynamical DE cosmologies High precision spectra at large redshift for dynamical DE cosmologies

2010-09-15

arxiv.org/abs/1009.2964v1

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

PASCOS 2010, the 16th International Symposium on Particles, Strings and Cosmology, Valencia (Spain), July 19th - 23rd, 2010

Scientific paper

The next generation mass probes will investigate DE nature by measuring non-linear power spectra at various z, and comparing them with high precision simulations. Producing a complete set of them, taking into account baryon physics and for any DE state equation w(z), would really be numerically expensive. Regularities reducing such duty are essential. This paper presents further n-body tests of a relation we found, linking models with DE state parameter w(z) to const.-w models, and also tests the relation in hydro simulations.

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