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Large-scale structure of the Universe. The Zeldovich approximation and the adhesion model

S. N. Gurbatov^a, A. I. Saichev^a, S. F. Shandarin<sup>b

a</sup> Department of Radiofhysics, Lobachevsky Nizhny Novgorod State University
^b Department of Physics and Astronomy, University of Kansas

Abstract: A semianalytic formation model for the large-scale structure of the Universe (from a few to hundreds of megaparsecs) is discussed. The model is a natural generalization of Zeldovich's 1970 approximation and is mathematically based on the Burgers equation for low or even vanishing viscosity. It offers a natural explanation of the galaxy distribution that is observed in the scale range mentioned above and is reminiscent in its shape of a 3D mosaic or a giant cosmic web. Many predictions of the model have been confirmed by modern observations. New theoretical results related to the Burgers model are discussed together with their applications to cosmology.

Keywords: Тhe large-scale structure in the universe, Zeldovich approximation, galaxy distribution, Burgers equation.

PACS: 95.35.+d, 95.36.+x, 98.65.-r

Received: April 29, 2011
Revised: September 26, 2011
Accepted: October 4, 2011

DOI: 10.3367/UFNr.0182.201203a.0233

 English version: Physics–Uspekhi, 2012, 55:3, 223–249

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