Astronomy and Astrophysics – Astrophysics
Scientific paper
1995-03-08
Astron.Astrophys.296:611-627,1995
Astronomy and Astrophysics
Astrophysics
18 Pages, uuencoded postscript, postscript figures are available on request or at http://www.uni-sw.gwdg.de/~pfrisch or anonym
Scientific paper
Recently, the observed cellular nature of the large-scale structure of the Universe with its quasi-regular pattern of superclusters and voids has been pointed out by several authors. In this paper, we investigate properties of the initial power spectrum which lead to prediction of structure consistent with these observations.For this purpose, we analyze the evolution of structure within four sets of 2- and 3-dimensional cosmological models, which differ in their initial power spectrum. The models include HDM and CDM models as well as double power-law models. We discuss in detail the impact of model parameters such as the large scale and small scale power and the position and height of the maxima of the power spectra on the predicted structure. The best agreement with observations was observed in the model with the Harrison-Zeldovich spectrum on large scales, a power index $n\approx -1.5$ on small scales, and a maximum of the power spectrum at $\approx 130$~\Mpc. In this model the distribution of masses of clusters and superclusters, the correlation function of clusters, and the void distribution reproduce well the respective observed distributions. We also investigated the dynamical evolution of the supercluster-void structure. The results show that the basic supercluster-void network is formed very early and is essentially given by initial conditions.
Einasto Jaan
Einasto Maret
Freudling Wolfman
Fricke Klaus J.
Frisch Pierre
No associations
LandOfFree
Evolution of the Supercluster-Void Network does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Evolution of the Supercluster-Void Network, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Evolution of the Supercluster-Void Network will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-238239