Nonlinear Structure Formation and Baryon Acoustic Oscillations

Details Nonlinear Structure Formation and Baryon Acoustic Oscillations Nonlinear Structure Formation and Baryon Acoustic Oscillations

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...211.5504s&link_type=abstract

American Astronomical Society, AAS Meeting #211, #55.04; Bulletin of the American Astronomical Society, Vol. 39, p.826

Astronomy and Astrophysics

Astronomy

Scientific paper

We compute the effects that nonlinear structure formation has on the baryon acoustic oscillations imprinted on the power spectrum through large N-body simulations. Effects on both the matter power spectrum and a biased galaxy population over a range of redshifts are determined. We find that nonlinear effects shift the acoustic scale imprinted in the power spectrum by a small but potentially measurable amount. A large-scale, deep galaxy survey may provide a unique and powerful probe of the acoustic scale, and thus also can deliver insight into the nature of dark energy.

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