The Zeldovich & Adhesion approximations, and applications to the local universe
Abstract
The Zeldovich approximation (ZA) predicts the formation of a web of singularities. While these singularities may only exist in the most formal interpretation of the ZA, they provide a powerful tool for the analysis of initial conditions. We present a novel method to find the skeleton of the resulting cosmic web based on singularities in the primordial deformation tensor and its higher order derivatives. We show that the A_3-lines predict the formation of filaments in a two-dimensional model. We continue with applications of the adhesion model to visualise structures in the local (z < 0.03) universe.
Keywords
Cite
@article{arxiv.1611.01221,
title = {The Zeldovich & Adhesion approximations, and applications to the local universe},
author = {Johan Hidding and Rien van de Weygaert and Sergei Shandarin},
journal= {arXiv preprint arXiv:1611.01221},
year = {2016}
}
Comments
9 pages, 8 figures, Proceedings of IAU Symposium 308 "The Zeldovich Universe: Genesis and Growth of the Cosmic Web", 23-28 June 2014, Tallinn, Estonia