Power Spectra to 1% Accuracy between Dynamical Dark Energy Cosmologies

Details Power Spectra to 1% Accuracy between Dynamical Dark Energy Cosmologies Power Spectra to 1% Accuracy between Dynamical Dark Energy Cosmologies

2007-04-03

arxiv.org/abs/0704.0312v1

Mon.Not.Roy.Astron.Soc.380:1079,2007

Astronomy and Astrophysics

Astrophysics

9 pages, 14 figures, submitted to MNRAS

Scientific paper

10.1111/j.1365-2966.2007.12139.x

For dynamical dark energy cosmologies we carry out a series of N-body gravitational simulations, achieving percent level accuracy in the relative mass power spectra at any redshift. Such accuracy in the power spectrum is necessary for next generation cosmological mass probes. Our matching procedure reproduces the CMB distance to last scattering and delivers subpercent level power spectra at z=0 and z~3. We discuss the physical implications for probing dark energy with surveys of large scale structure.

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