The large scale structure of the universe: Dynamical and statistical aspects

The description of gravitational clustering is essentially statistical but its origin is dynamical. Hence both aspects of clustering: dynamical and statistical, must be understood in order to arrive at a proper appreciation of the subject of gravitational instability and the formation and evolution...

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Bibliographic Details
Published inPramāṇa Vol. 49; no. 1; pp. 131 - 145
Main Author Sahni, Varun
Format Journal Article
LanguageEnglish
Published Dordrecht Springer Nature B.V 01.07.1997
Subjects
Clustering
Gravitational instability
Large scale structure of the universe
Percolation theory
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ISSN0304-4289
0973-7111
DOI10.1007/BF02856344

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Summary:The description of gravitational clustering is essentially statistical but its origin is dynamical. Hence both aspects of clustering: dynamical and statistical, must be understood in order to arrive at a proper appreciation of the subject of gravitational instability and the formation and evolution of the large scale structure of the Universe. Key dynamical aspects of gravitational clustering such as the Zeldovich approximation and its extension — the adhesion model are reviewed. Statistical indicators of clustering such as the correlation function and percolation theory, as applied to the large scale structure of the Universe have also been focussed on.
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ISSN:0304-4289
0973-7111
DOI:10.1007/BF02856344