The Model of Two Points Correlation Function for the Determination of the Large Scale Structure of the Universe (II)
Abstract
In this paper we investigate the inhomogeneities on large scale in the Universe. Our results indicate that the signals of the inhomogeneities in different 3D catalogs (galaxies, clusters, superclusters) are correlated, suggesting the presence of phase fluctuations in the long tail of the correlation function ξ(r). The power spectrum P(k), the corresponding transfer function Tf(k), the density fluctuation spectrum and peculiar velocity field of the LSU, for H0=100, Ω0=1, b=1 model, have been determined and plotted. In order to analyse the topological texture of the Universe at small, intermediate and large scale (r<1000 h-1 Mpc) we made different simulations.
- Publication:
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Romanian Astronomical Journal
- Pub Date:
- 1998
- Bibcode:
- 1998RoAJ....8...63S
- Keywords:
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- Cosmology;
- Density Fluctuation Spectrum;
- Peculiar Velocity Field;
- Universe: Large-Scale Structure;
- Topological Texture