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Title:
Simulating the formation of cosmic structure
Authors:
Frenk, C. S.
Publication:
New science from high-performance computing. A Discussion organized and edited by Richard Catlow, Philip Burke, Julia Goodfellow, Dominic Tildesley and Maggie Wilson. Roy Soc of London Phil Tr A, vol. 360, Issue 1795, p.1277
Publication Date:
06/2002
Origin:
WEB
DOI:
10.1098/rsta.2002.0995
Bibliographic Code:
2002RSPTA.360.1277F

Abstract

A timely combination of new theoretical ideas and observational discoveries has brought about significant advances in our understanding of cosmic evolution. Computer simulations have played a key role in these developments by providing the means to interpret astronomical data in the context of physical and cosmological theory. In the current paradigm, our Universe has a flat geometry, is undergoing accelerated expansion and is gravitationaly dominated by elementary particles that make up cold dark matter. Within this framework, it is possible to simulate in a computer the emergence of galaxies and other structures from small quantum fluctuations imprinted during an epoch of inflationary expansion shortly after the Big Bang. The simulations must take into account the evolution of the dark matter as well as the gaseous processes involved in the formation of stars and other visible components. Although many unresolved questions remain, a coherent picture for the formation of cosmic structure in now beginning to emerge. In this paper, I review a selection of recent results obtained from simulations of the cosmic large-scale structure and galaxy formation and compare them with observational data, including results from the ``2dF Galaxy Redshift Survey.''
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