Reconstructing the power spectrum of density fluctuations.

Details Reconstructing the power spectrum of density fluctuations. Reconstructing the power spectrum of density fluctuations.

Jun 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994sucg.conf...19g&link_type=abstract

Workshop on Studying the Universe with Clusters of Galaxies, p. 19 - 24

Physics

Galaxy Clustering: Universe, Galaxy Clustering: N-Body Simulations, Universe: Large-Scale Structure

Scientific paper

The authors show how, based on the presently observed large-scale form of the galaxy two-point spatial correlation function ξ(τ), a very simplified model for the linear P(k) can be constructed and tested with N-body simulations. The results reproduce quite well and in a self-consistent way the observed form and amplitude of galaxy clustering, providing in addition a rather realistic value for the small-scale pairwise velocity dispersion σ1d.

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