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The inner structure of Zeldovich pancakes (2003)
| Venue: | Physica D Nonlinear Phenomena |
| Citations: | 1 - 0 self |
BibTeX
@ARTICLE{Aurell03theinner,
author = {E. Aurell and D. Fanelli and S. N. Gurbatov and A. Yu. Moshkov},
title = {The inner structure of Zeldovich pancakes},
journal = {Physica D Nonlinear Phenomena},
year = {2003},
pages = {10--1016}
}
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Abstract
The evolution of a planar perturbation in a Einstein-de Sitter Universe is studied using a previously introduced Lagrangian scheme. An approximate discrete dynamical system is derived, which describes the mass agglomeration process qualitatively. Quantitative predictions for the late density profile are obtained therefrom, and validated by numerical simulations. The main result is a scaling regime for the density profile of a collapsing object of mass M around cosmological coordinate r ∗ , ρ(r) ∼ M d
Keyphrases
inner structure zeldovich pancake mass agglomeration process quantitative prediction einstein-de sitter universe scaling regime density profile late density profile main result cosmological coordinate planar perturbation approximate discrete dynamical system numerical simulation lagrangian scheme
