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Semi-Analytic Models of Galaxy Formation

Bruno M. Henriques
Astronomy Centre, University of Sussex

Abstract
The cold dark matter model has become the leading theoretical paradigm for the formation of structure in the Universe, making clear predictions for the initial conditions for structure formation and stating that structures grow hierarchically through gravitational instability.
Testing this model requires that the precise measurements derived by recent galaxy surveys (such as 2DF and SDSS) can be compared to robust and equally precise theoretical calculations. Present numerical capabilities allow reliable simulation of the couples nonlinear evolution of dark matter and diffuse gas. However, once the gas cools into halo halo cores its properties are determined by small-scale processes which can not be resolved.

2008 June 04, 13:30

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