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Spherical simulations of large‐scale structure of the Universe
Author(s) -
Mücket J. P.
Publication year - 1985
Publication title -
astronomische nachrichten
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.394
H-Index - 63
eISSN - 1521-3994
pISSN - 0004-6337
DOI - 10.1002/asna.2113060602
Subject(s) - physics , decoupling (probability) , spherical shell , perturbation (astronomy) , classical mechanics , universe , galaxy , shell (structure) , homogeneous , newtonian fluid , astrophysics , statistical physics , astronomy , materials science , control engineering , engineering , composite material
We consider a spherical‐smmetric perturbation in an initially homogeneous dust filled universe within the frame‐work of the Bondi‐Tolman solution. The decoupling of the perturbed region from the background evolution naturally leads to shell‐crossing in a certain outer environment, which describes energy relaxation. In the approximation of Newtonian gravity it can be analytically determined the behaviour of the outgoing front shell and different parameters of the shell‐crossing region. On the basis of the obtained results we give a possible explanation for the “large voids” in the observed galaxy distribution.