2DARK天文志

Abstract

Cosmic structure has formed as a result of gravitational amplification
of primordial density fluctuations together with the action of other
physical processes (adiabatic gas dynamics, radiative cooling,
photoionization and recombination, radiative transfer). These complex
nonlinear processes, acting over a wide range of length scales (from
kiloparsecs to tens of megaparsecs), make this a difficult problem for
computation. During the last two decades, significant progress has been
made in developing numerical methods and statistical tools for analyzing
simulations and data. Combined with observational advances, numerical
simulations have led to the demise of several formerly popular models
and to an improved understanding of galaxy clusters, quasistellar object
(QSO) absorption line systems, and other phenomena. This review
summarizes these advances.

· Electronic Refereed Journal Article (HTML)

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