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The Zeldovich & Adhesion approximations and applications to the local universe

Published online by Cambridge University Press:  12 October 2016

Johan Hidding ,
Rien van de Weygaert  and
Sergei Shandarin
Johan Hidding
Affiliation:
Kapteyn Astronomical Institute, University of Groningen, Postbus 800, NL-9700AV, Groningen, the Netherlands email: johannes.hidding@gmail.com
Rien van de Weygaert
Affiliation:
Kapteyn Astronomical Institute, University of Groningen, Postbus 800, NL-9700AV, Groningen, the Netherlands email: johannes.hidding@gmail.com
Sergei Shandarin
Affiliation:
Department of Physics and Astronomy, University of Kansas, 1082 Malott, 1251 Wescoe Hall Dr., Lawrence, KS 66045-7582
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Abstract

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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 A3 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.

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 11 , Symposium S308: The Zeldovich Universe: Genesis and Growth of the Cosmic Web , June 2014 , pp. 69 - 76
Copyright
Copyright © International Astronomical Union 2016 

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